mercurial/util.py
author andrea@suse.de
Thu, 22 Jun 2006 02:44:39 +0200
changeset 2482 818ebebc4554
parent 2480 519a1011db91
child 2522 85f796baab10
permissions -rw-r--r--
Fix hg diff regression
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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"""
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util.py - Mercurial utility functions and platform specfic implementations
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 Copyright 2005 K. Thananchayan <thananck@yahoo.com>
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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This contains helper routines that are independent of the SCM core and hide
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platform-specific details from the core.
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"""
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from i18n import gettext as _
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from demandload import *
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demandload(globals(), "cStringIO errno popen2 re shutil sys tempfile")
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demandload(globals(), "os threading time")
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class SignalInterrupt(Exception):
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    """Exception raised on SIGTERM and SIGHUP."""
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def pipefilter(s, cmd):
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    '''filter string S through command CMD, returning its output'''
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    (pout, pin) = popen2.popen2(cmd, -1, 'b')
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    def writer():
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        try:
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            pin.write(s)
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            pin.close()
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        except IOError, inst:
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            if inst.errno != errno.EPIPE:
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                raise
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    # we should use select instead on UNIX, but this will work on most
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    # systems, including Windows
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    w = threading.Thread(target=writer)
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    w.start()
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    f = pout.read()
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    pout.close()
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    w.join()
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    return f
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def tempfilter(s, cmd):
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    '''filter string S through a pair of temporary files with CMD.
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    CMD is used as a template to create the real command to be run,
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    with the strings INFILE and OUTFILE replaced by the real names of
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    the temporary files generated.'''
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    inname, outname = None, None
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    try:
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        infd, inname = tempfile.mkstemp(prefix='hg-filter-in-')
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        fp = os.fdopen(infd, 'wb')
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        fp.write(s)
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        fp.close()
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        outfd, outname = tempfile.mkstemp(prefix='hg-filter-out-')
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        os.close(outfd)
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        cmd = cmd.replace('INFILE', inname)
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        cmd = cmd.replace('OUTFILE', outname)
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        code = os.system(cmd)
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        if code: raise Abort(_("command '%s' failed: %s") %
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                             (cmd, explain_exit(code)))
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        return open(outname, 'rb').read()
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    finally:
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        try:
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            if inname: os.unlink(inname)
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        except: pass
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        try:
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            if outname: os.unlink(outname)
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        except: pass
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filtertable = {
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    'tempfile:': tempfilter,
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    'pipe:': pipefilter,
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    }
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def filter(s, cmd):
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    "filter a string through a command that transforms its input to its output"
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    for name, fn in filtertable.iteritems():
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        if cmd.startswith(name):
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            return fn(s, cmd[len(name):].lstrip())
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    return pipefilter(s, cmd)
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def find_in_path(name, path, default=None):
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    '''find name in search path. path can be string (will be split
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    with os.pathsep), or iterable thing that returns strings.  if name
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    found, return path to name. else return default.'''
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    if isinstance(path, str):
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        path = path.split(os.pathsep)
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    for p in path:
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        p_name = os.path.join(p, name)
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        if os.path.exists(p_name):
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            return p_name
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    return default
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def patch(strip, patchname, ui):
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    """apply the patch <patchname> to the working directory.
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    a list of patched files is returned"""
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    patcher = find_in_path('gpatch', os.environ.get('PATH', ''), 'patch')
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    fp = os.popen('%s -p%d < "%s"' % (patcher, strip, patchname))
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    files = {}
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    for line in fp:
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        line = line.rstrip()
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        ui.status("%s\n" % line)
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        if line.startswith('patching file '):
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            pf = parse_patch_output(line)
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            files.setdefault(pf, 1)
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    code = fp.close()
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    if code:
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        raise Abort(_("patch command failed: %s") % explain_exit(code)[0])
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    return files.keys()
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def binary(s):
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    """return true if a string is binary data using diff's heuristic"""
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    if s and '\0' in s[:4096]:
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        return True
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    return False
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def unique(g):
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    """return the uniq elements of iterable g"""
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    seen = {}
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    for f in g:
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        if f not in seen:
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            seen[f] = 1
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            yield f
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class Abort(Exception):
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    """Raised if a command needs to print an error and exit."""
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def always(fn): return True
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def never(fn): return False
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def patkind(name, dflt_pat='glob'):
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    """Split a string into an optional pattern kind prefix and the
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    actual pattern."""
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    for prefix in 're', 'glob', 'path', 'relglob', 'relpath', 'relre':
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        if name.startswith(prefix + ':'): return name.split(':', 1)
cc2a2e12f4ad export patkind() from util
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parents: 1546
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   134
    return dflt_pat, name
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parents: 1546
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   135
1062
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def globre(pat, head='^', tail='$'):
724
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    "convert a glob pattern into a regexp"
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    i, n = 0, len(pat)
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    res = ''
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    group = False
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   141
    def peek(): return i < n and pat[i]
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   142
    while i < n:
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   143
        c = pat[i]
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   144
        i = i+1
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   145
        if c == '*':
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   146
            if peek() == '*':
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   147
                i += 1
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   148
                res += '.*'
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   149
            else:
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   150
                res += '[^/]*'
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   151
        elif c == '?':
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            res += '.'
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   153
        elif c == '[':
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            j = i
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   155
            if j < n and pat[j] in '!]':
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   156
                j += 1
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   157
            while j < n and pat[j] != ']':
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   158
                j += 1
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   159
            if j >= n:
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   160
                res += '\\['
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   161
            else:
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   162
                stuff = pat[i:j].replace('\\','\\\\')
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   163
                i = j + 1
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   164
                if stuff[0] == '!':
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   165
                    stuff = '^' + stuff[1:]
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   166
                elif stuff[0] == '^':
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   167
                    stuff = '\\' + stuff
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   168
                res = '%s[%s]' % (res, stuff)
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   169
        elif c == '{':
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   170
            group = True
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   171
            res += '(?:'
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   172
        elif c == '}' and group:
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   173
            res += ')'
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   174
            group = False
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   175
        elif c == ',' and group:
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   176
            res += '|'
1990
4b0535c678d6 make it possible to escape characters in a glob expression
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1976
diff changeset
   177
        elif c == '\\':
4b0535c678d6 make it possible to escape characters in a glob expression
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   178
            p = peek()
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   179
            if p:
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                i += 1
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   181
                res += re.escape(p)
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   182
            else:
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diff changeset
   183
                res += re.escape(c)
724
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   184
        else:
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   185
            res += re.escape(c)
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   186
    return head + res + tail
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   187
812
b65af904d6d7 Reduce the amount of stat traffic generated by a walk.
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   188
_globchars = {'[': 1, '{': 1, '*': 1, '?': 1}
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884
087771ebe2e6 Fix walk code for files that do not exist anywhere, and unhandled types.
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def pathto(n1, n2):
886
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   191
    '''return the relative path from one place to another.
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   192
    this returns a path in the form used by the local filesystem, not hg.'''
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   193
    if not n1: return localpath(n2)
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   194
    a, b = n1.split('/'), n2.split('/')
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   195
    a.reverse()
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   196
    b.reverse()
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   197
    while a and b and a[-1] == b[-1]:
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        a.pop()
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        b.pop()
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    b.reverse()
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   201
    return os.sep.join((['..'] * len(a)) + b)
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   203
def canonpath(root, cwd, myname):
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    """return the canonical path of myname, given cwd and root"""
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   205
    if root == os.sep:
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   206
        rootsep = os.sep
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diff changeset
   207
    elif root.endswith(os.sep):
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        rootsep = root
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   209
    else:
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   210
        rootsep = root + os.sep
870
a82eae840447 Teach walk code about absolute paths.
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   211
    name = myname
2090
eb40db373717 fix util.canonpath on windows.
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   212
    if not os.path.isabs(name):
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   213
        name = os.path.join(root, cwd, name)
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   214
    name = os.path.normpath(name)
2278
3711e23ab10a Make hg status work for repositories in root directory on windows (issue 228)
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parents: 2271
diff changeset
   215
    if name != rootsep and name.startswith(rootsep):
1976
df8416346bb7 Enable path validation for copy, rename, debugwalk and other canonpath users.
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parents: 1958
diff changeset
   216
        name = name[len(rootsep):]
df8416346bb7 Enable path validation for copy, rename, debugwalk and other canonpath users.
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parents: 1958
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   217
        audit_path(name)
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   218
        return pconvert(name)
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   219
    elif name == root:
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a82eae840447 Teach walk code about absolute paths.
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   220
        return ''
a82eae840447 Teach walk code about absolute paths.
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diff changeset
   221
    else:
2115
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   222
        # Determine whether `name' is in the hierarchy at or beneath `root',
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diff changeset
   223
        # by iterating name=dirname(name) until that causes no change (can't
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   224
        # check name == '/', because that doesn't work on windows).  For each
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   225
        # `name', compare dev/inode numbers.  If they match, the list `rel'
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   226
        # holds the reversed list of components making up the relative file
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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diff changeset
   227
        # name we want.
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diff changeset
   228
        root_st = os.stat(root)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   229
        rel = []
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   230
        while True:
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   231
            try:
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parents: 2096
diff changeset
   232
                name_st = os.stat(name)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   233
            except OSError:
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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diff changeset
   234
                break
2193
fb28ce04b349 add util.samestat function for windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2177
diff changeset
   235
            if samestat(name_st, root_st):
2115
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   236
                rel.reverse()
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   237
                name = os.path.join(*rel)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   238
                audit_path(name)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   239
                return pconvert(name)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   240
            dirname, basename = os.path.split(name)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   241
            rel.append(basename)
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   242
            if dirname == name:
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
Jim Meyering <list+hg@meyering.net>
parents: 2096
diff changeset
   243
                break
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   244
            name = dirname
fd77b7ee4aac Fix issue 165: `hg status' with abs path containing a symlink-to-dir fails
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parents: 2096
diff changeset
   245
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8b7d63489db3 Change canonpath to not know about repo objects
mpm@selenic.com
parents: 1075
diff changeset
   246
        raise Abort('%s not under root' % myname)
897
fe30f5434b51 Fix bug with empty inc and exc
mpm@selenic.com
parents: 896
diff changeset
   247
1610
84e9b3484ff6 if hgignore contains errors, print message that is not confusing.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1609
diff changeset
   248
def matcher(canonroot, cwd='', names=['.'], inc=[], exc=[], head='', src=None):
84e9b3484ff6 if hgignore contains errors, print message that is not confusing.
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parents: 1609
diff changeset
   249
    return _matcher(canonroot, cwd, names, inc, exc, head, 'glob', src)
1413
1c64c628d15f Do not use 'glob' expansion by default on OS != 'nt'
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1402
diff changeset
   250
1610
84e9b3484ff6 if hgignore contains errors, print message that is not confusing.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1609
diff changeset
   251
def cmdmatcher(canonroot, cwd='', names=['.'], inc=[], exc=[], head='', src=None):
1413
1c64c628d15f Do not use 'glob' expansion by default on OS != 'nt'
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parents: 1402
diff changeset
   252
    if os.name == 'nt':
1c64c628d15f Do not use 'glob' expansion by default on OS != 'nt'
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1402
diff changeset
   253
        dflt_pat = 'glob'
1c64c628d15f Do not use 'glob' expansion by default on OS != 'nt'
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1402
diff changeset
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    else:
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        dflt_pat = 'relpath'
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    return _matcher(canonroot, cwd, names, inc, exc, head, dflt_pat, src)
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def _matcher(canonroot, cwd, names, inc, exc, head, dflt_pat, src):
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    """build a function to match a set of file patterns
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    arguments:
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    canonroot - the canonical root of the tree you're matching against
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    cwd - the current working directory, if relevant
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    names - patterns to find
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    inc - patterns to include
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    exc - patterns to exclude
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    head - a regex to prepend to patterns to control whether a match is rooted
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    a pattern is one of:
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    'glob:<rooted glob>'
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    're:<rooted regexp>'
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    'path:<rooted path>'
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    'relglob:<relative glob>'
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    'relpath:<relative path>'
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    'relre:<relative regexp>'
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    '<rooted path or regexp>'
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    returns:
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    a 3-tuple containing
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    - list of explicit non-pattern names passed in
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    - a bool match(filename) function
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    - a bool indicating if any patterns were passed in
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    todo:
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    make head regex a rooted bool
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    """
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    def contains_glob(name):
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        for c in name:
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            if c in _globchars: return True
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        return False
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    def regex(kind, name, tail):
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        '''convert a pattern into a regular expression'''
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        if kind == 're':
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            return name
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        elif kind == 'path':
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            return '^' + re.escape(name) + '(?:/|$)'
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        elif kind == 'relglob':
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            return head + globre(name, '(?:|.*/)', tail)
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        elif kind == 'relpath':
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            return head + re.escape(name) + tail
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        elif kind == 'relre':
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            if name.startswith('^'):
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                return name
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            return '.*' + name
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        return head + globre(name, '', tail)
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    def matchfn(pats, tail):
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        """build a matching function from a set of patterns"""
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        if not pats:
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            return
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        matches = []
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        for k, p in pats:
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            try:
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                pat = '(?:%s)' % regex(k, p, tail)
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                matches.append(re.compile(pat).match)
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            except re.error:
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                if src: raise Abort("%s: invalid pattern (%s): %s" % (src, k, p))
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                else: raise Abort("invalid pattern (%s): %s" % (k, p))
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        def buildfn(text):
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            for m in matches:
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                r = m(text)
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                if r:
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                    return r
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        return buildfn
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    def globprefix(pat):
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        '''return the non-glob prefix of a path, e.g. foo/* -> foo'''
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        root = []
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        for p in pat.split(os.sep):
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            if contains_glob(p): break
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            root.append(p)
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        return '/'.join(root)
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   337
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    pats = []
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    files = []
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    roots = []
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    for kind, name in [patkind(p, dflt_pat) for p in names]:
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        if kind in ('glob', 'relpath'):
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            name = canonpath(canonroot, cwd, name)
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            if name == '':
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                kind, name = 'glob', '**'
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        if kind in ('glob', 'path', 're'):
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   347
            pats.append((kind, name))
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   348
        if kind == 'glob':
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   349
            root = globprefix(name)
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   350
            if root: roots.append(root)
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        elif kind == 'relpath':
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            files.append((kind, name))
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   353
            roots.append(name)
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   354
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   355
    patmatch = matchfn(pats, '$') or always
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   356
    filematch = matchfn(files, '(?:/|$)') or always
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   357
    incmatch = always
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   358
    if inc:
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   359
        inckinds = [patkind(canonpath(canonroot, cwd, i)) for i in inc]
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        incmatch = matchfn(inckinds, '(?:/|$)')
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   361
    excmatch = lambda fn: False
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   362
    if exc:
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   363
        exckinds = [patkind(canonpath(canonroot, cwd, x)) for x in exc]
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   364
        excmatch = matchfn(exckinds, '(?:/|$)')
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   365
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    return (roots,
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   367
            lambda fn: (incmatch(fn) and not excmatch(fn) and
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                        (fn.endswith('/') or
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                         (not pats and not files) or
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                         (pats and patmatch(fn)) or
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                         (files and filematch(fn)))),
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   372
            (inc or exc or (pats and pats != [('glob', '**')])) and True)
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   373
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diff changeset
   374
def system(cmd, environ={}, cwd=None, onerr=None, errprefix=None):
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diff changeset
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    '''enhanced shell command execution.
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   376
    run with environment maybe modified, maybe in different dir.
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diff changeset
   377
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diff changeset
   378
    if command fails and onerr is None, return status.  if ui object,
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diff changeset
   379
    print error message and return status, else raise onerr object as
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diff changeset
   380
    exception.'''
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diff changeset
   381
    oldenv = {}
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diff changeset
   382
    for k in environ:
05c7d75be925 fix broken environment save/restore when a hook runs.
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diff changeset
   383
        oldenv[k] = os.environ.get(k)
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diff changeset
   384
    if cwd is not None:
05c7d75be925 fix broken environment save/restore when a hook runs.
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parents: 1877
diff changeset
   385
        oldcwd = os.getcwd()
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   386
    try:
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   387
        for k, v in environ.iteritems():
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   388
            os.environ[k] = str(v)
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   389
        if cwd is not None and oldcwd != cwd:
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   390
            os.chdir(cwd)
1882
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   391
        rc = os.system(cmd)
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   392
        if rc and onerr:
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   393
            errmsg = '%s %s' % (os.path.basename(cmd.split(None, 1)[0]),
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   394
                                explain_exit(rc)[0])
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   395
            if errprefix:
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   396
                errmsg = '%s: %s' % (errprefix, errmsg)
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   397
            try:
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   398
                onerr.warn(errmsg + '\n')
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   399
            except AttributeError:
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   400
                raise onerr(errmsg)
c0320567931f merge util.esystem and util.system.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1880
diff changeset
   401
        return rc
1880
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   402
    finally:
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   403
        for k, v in oldenv.iteritems():
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   404
            if v is None:
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   405
                del os.environ[k]
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   406
            else:
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   407
                os.environ[k] = v
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   408
        if cwd is not None and oldcwd != cwd:
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   409
            os.chdir(oldcwd)
05c7d75be925 fix broken environment save/restore when a hook runs.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1877
diff changeset
   410
421
43b8da7420a9 [PATCH] rename under the other OS
mpm@selenic.com
parents: 419
diff changeset
   411
def rename(src, dst):
1082
ce96e316278a Update util.py docstrings, fix walk test
mpm@selenic.com
parents: 1081
diff changeset
   412
    """forcibly rename a file"""
421
43b8da7420a9 [PATCH] rename under the other OS
mpm@selenic.com
parents: 419
diff changeset
   413
    try:
43b8da7420a9 [PATCH] rename under the other OS
mpm@selenic.com
parents: 419
diff changeset
   414
        os.rename(src, dst)
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   415
    except OSError, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   416
        # on windows, rename to existing file is not allowed, so we
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   417
        # must delete destination first. but if file is open, unlink
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   418
        # schedules it for delete but does not delete it. rename
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   419
        # happens immediately even for open files, so we create
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   420
        # temporary file, delete it, rename destination to that name,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   421
        # then delete that. then rename is safe to do.
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   422
        fd, temp = tempfile.mkstemp(dir=os.path.dirname(dst) or '.')
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   423
        os.close(fd)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   424
        os.unlink(temp)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   425
        os.rename(dst, temp)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   426
        os.unlink(temp)
421
43b8da7420a9 [PATCH] rename under the other OS
mpm@selenic.com
parents: 419
diff changeset
   427
        os.rename(src, dst)
43b8da7420a9 [PATCH] rename under the other OS
mpm@selenic.com
parents: 419
diff changeset
   428
1415
c6e6ca96a033 refactor some unlink/remove code and make sure we prune empty dir
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1413
diff changeset
   429
def unlink(f):
c6e6ca96a033 refactor some unlink/remove code and make sure we prune empty dir
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1413
diff changeset
   430
    """unlink and remove the directory if it is empty"""
c6e6ca96a033 refactor some unlink/remove code and make sure we prune empty dir
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1413
diff changeset
   431
    os.unlink(f)
c6e6ca96a033 refactor some unlink/remove code and make sure we prune empty dir
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1413
diff changeset
   432
    # try removing directories that might now be empty
2064
547ede0123a2 util.unlink should only catch OSError.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2054
diff changeset
   433
    try:
547ede0123a2 util.unlink should only catch OSError.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2054
diff changeset
   434
        os.removedirs(os.path.dirname(f))
547ede0123a2 util.unlink should only catch OSError.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2054
diff changeset
   435
    except OSError:
547ede0123a2 util.unlink should only catch OSError.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2054
diff changeset
   436
        pass
1415
c6e6ca96a033 refactor some unlink/remove code and make sure we prune empty dir
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1413
diff changeset
   437
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   438
def copyfiles(src, dst, hardlink=None):
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   439
    """Copy a directory tree using hardlinks if possible"""
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   440
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   441
    if hardlink is None:
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   442
        hardlink = (os.stat(src).st_dev ==
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   443
                    os.stat(os.path.dirname(dst)).st_dev)
698
df78d8ccac4c Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 667
diff changeset
   444
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
   445
    if os.path.isdir(src):
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
   446
        os.mkdir(dst)
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
   447
        for name in os.listdir(src):
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
   448
            srcname = os.path.join(src, name)
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
   449
            dstname = os.path.join(dst, name)
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   450
            copyfiles(srcname, dstname, hardlink)
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
   451
    else:
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   452
        if hardlink:
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   453
            try:
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   454
                os_link(src, dst)
2050
e49d0fa38176 util.copyfiles: only switch to copy if hardlink raises IOError or OSError.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2026
diff changeset
   455
            except (IOError, OSError):
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   456
                hardlink = False
1591
5a3229cf1492 do not copy atime and mtime in util.copyfiles
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
   457
                shutil.copy(src, dst)
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   458
        else:
1591
5a3229cf1492 do not copy atime and mtime in util.copyfiles
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
   459
            shutil.copy(src, dst)
698
df78d8ccac4c Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 667
diff changeset
   460
1835
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   461
def audit_path(path):
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   462
    """Abort if path contains dangerous components"""
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   463
    parts = os.path.normcase(path).split(os.sep)
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   464
    if (os.path.splitdrive(path)[0] or parts[0] in ('.hg', '')
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   465
        or os.pardir in parts):
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   466
        raise Abort(_("path contains illegal component: %s\n") % path)
bdfb524d728a Validate paths before reading or writing files in repository or working dir.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1830
diff changeset
   467
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   468
def _makelock_file(info, pathname):
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   469
    ld = os.open(pathname, os.O_CREAT | os.O_WRONLY | os.O_EXCL)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   470
    os.write(ld, info)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   471
    os.close(ld)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   472
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   473
def _readlock_file(pathname):
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   474
    return posixfile(pathname).read()
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   475
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   476
def nlinks(pathname):
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   477
    """Return number of hardlinks for the given file."""
2448
b77a2ef61b81 replace os.stat with os.lstat in some where.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2314
diff changeset
   478
    return os.lstat(pathname).st_nlink
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   479
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   480
if hasattr(os, 'link'):
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   481
    os_link = os.link
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   482
else:
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   483
    def os_link(src, dst):
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   484
        raise OSError(0, _("Hardlinks not supported"))
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   485
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   486
def fstat(fp):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   487
    '''stat file object that may not have fileno method.'''
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   488
    try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   489
        return os.fstat(fp.fileno())
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   490
    except AttributeError:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   491
        return os.stat(fp.name)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   492
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   493
posixfile = file
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   494
2250
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   495
def is_win_9x():
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   496
    '''return true if run on windows 95, 98 or me.'''
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   497
    try:
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   498
        return sys.getwindowsversion()[3] == 1
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   499
    except AttributeError:
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   500
        return os.name == 'nt' and 'command' in os.environ.get('comspec', '')
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   501
1082
ce96e316278a Update util.py docstrings, fix walk test
mpm@selenic.com
parents: 1081
diff changeset
   502
# Platform specific variants
419
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   503
if os.name == 'nt':
1420
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   504
    demandload(globals(), "msvcrt")
461
9ae0034f2772 [PATCH] /dev/null for other OS
mpm@selenic.com
parents: 441
diff changeset
   505
    nulldev = 'NUL:'
1609
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   506
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   507
    class winstdout:
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   508
        '''stdout on windows misbehaves if sent through a pipe'''
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   509
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   510
        def __init__(self, fp):
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   511
            self.fp = fp
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   512
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   513
        def __getattr__(self, key):
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   514
            return getattr(self.fp, key)
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   515
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   516
        def close(self):
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   517
            try:
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   518
                self.fp.close()
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   519
            except: pass
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   520
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   521
        def write(self, s):
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   522
            try:
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   523
                return self.fp.write(s)
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   524
            except IOError, inst:
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   525
                if inst.errno != 0: raise
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   526
                self.close()
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   527
                raise IOError(errno.EPIPE, 'Broken pipe')
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   528
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   529
    sys.stdout = winstdout(sys.stdout)
c50bddfbc812 eliminate backtrace when piping output on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1594
diff changeset
   530
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   531
    def system_rcpath():
2117
760339ccc799 fix issue 217.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2115
diff changeset
   532
        try:
760339ccc799 fix issue 217.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2115
diff changeset
   533
            return system_rcpath_win32()
760339ccc799 fix issue 217.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2115
diff changeset
   534
        except:
760339ccc799 fix issue 217.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2115
diff changeset
   535
            return [r'c:\mercurial\mercurial.ini']
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   536
1951
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   537
    def os_rcpath():
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   538
        '''return default os-specific hgrc search path'''
2280
09ed44225571 On Windows look for mercurial.ini in $USERPROFILE, too, if available
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2278
diff changeset
   539
        path = system_rcpath()
2284
d6392a7c03dd On win98 os.path.expanuser('~') does not result in a useable directory.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2280
diff changeset
   540
        path.append(user_rcpath())
2280
09ed44225571 On Windows look for mercurial.ini in $USERPROFILE, too, if available
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2278
diff changeset
   541
        userprofile = os.environ.get('USERPROFILE')
09ed44225571 On Windows look for mercurial.ini in $USERPROFILE, too, if available
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2278
diff changeset
   542
        if userprofile:
09ed44225571 On Windows look for mercurial.ini in $USERPROFILE, too, if available
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2278
diff changeset
   543
            path.append(os.path.join(userprofile, 'mercurial.ini'))
09ed44225571 On Windows look for mercurial.ini in $USERPROFILE, too, if available
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2278
diff changeset
   544
        return path
1292
141951276ba1 Use platform-appropriate rc file names.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1285
diff changeset
   545
2284
d6392a7c03dd On win98 os.path.expanuser('~') does not result in a useable directory.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2280
diff changeset
   546
    def user_rcpath():
d6392a7c03dd On win98 os.path.expanuser('~') does not result in a useable directory.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2280
diff changeset
   547
         '''return os-specific hgrc search path to the user dir'''
d6392a7c03dd On win98 os.path.expanuser('~') does not result in a useable directory.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2280
diff changeset
   548
         return os.path.join(os.path.expanduser('~'), 'mercurial.ini')
d6392a7c03dd On win98 os.path.expanuser('~') does not result in a useable directory.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2280
diff changeset
   549
1285
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   550
    def parse_patch_output(output_line):
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   551
        """parses the output produced by patch and returns the file name"""
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   552
        pf = output_line[14:]
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   553
        if pf[0] == '`':
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   554
            pf = pf[1:-1] # Remove the quotes
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   555
        return pf
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   556
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   557
    def testpid(pid):
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   558
        '''return False if pid dead, True if running or not known'''
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   559
        return True
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
   560
441
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   561
    def is_exec(f, last):
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   562
        return last
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   563
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   564
    def set_exec(f, mode):
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   565
        pass
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 508
diff changeset
   566
1420
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   567
    def set_binary(fd):
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   568
        msvcrt.setmode(fd.fileno(), os.O_BINARY)
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   569
419
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   570
    def pconvert(path):
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   571
        return path.replace("\\", "/")
422
10c43444a38e [PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents: 421
diff changeset
   572
886
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   573
    def localpath(path):
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   574
        return path.replace('/', '\\')
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   575
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   576
    def normpath(path):
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   577
        return pconvert(os.path.normpath(path))
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   578
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   579
    makelock = _makelock_file
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   580
    readlock = _readlock_file
461
9ae0034f2772 [PATCH] /dev/null for other OS
mpm@selenic.com
parents: 441
diff changeset
   581
2193
fb28ce04b349 add util.samestat function for windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2177
diff changeset
   582
    def samestat(s1, s2):
fb28ce04b349 add util.samestat function for windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2177
diff changeset
   583
        return False
fb28ce04b349 add util.samestat function for windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2177
diff changeset
   584
782
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   585
    def explain_exit(code):
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   586
        return _("exited with status %d") % code, code
782
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   587
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   588
    try:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   589
        # override functions with win32 versions if possible
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   590
        from util_win32 import *
2250
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   591
        if not is_win_9x():
45aef5ddcdbe windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2237
diff changeset
   592
            posixfile = posixfile_nt
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   593
    except ImportError:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   594
        pass
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2050
diff changeset
   595
419
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   596
else:
461
9ae0034f2772 [PATCH] /dev/null for other OS
mpm@selenic.com
parents: 441
diff changeset
   597
    nulldev = '/dev/null'
9ae0034f2772 [PATCH] /dev/null for other OS
mpm@selenic.com
parents: 441
diff changeset
   598
1583
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   599
    def rcfiles(path):
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   600
        rcs = [os.path.join(path, 'hgrc')]
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   601
        rcdir = os.path.join(path, 'hgrc.d')
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   602
        try:
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   603
            rcs.extend([os.path.join(rcdir, f) for f in os.listdir(rcdir)
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   604
                        if f.endswith(".rc")])
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   605
        except OSError, inst: pass
32a4e6802864 make mercurial look in more places for config files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1482
diff changeset
   606
        return rcs
1951
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   607
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   608
    def os_rcpath():
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   609
        '''return default os-specific hgrc search path'''
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   610
        path = []
2263
2f64cbaa1e92 make reason for sys.argv change obvious in code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2262
diff changeset
   611
        # old mod_python does not set sys.argv
2261
20cf545b4725 Check existance of sys.argv for the use from mod_python.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 2237
diff changeset
   612
        if len(getattr(sys, 'argv', [])) > 0:
1951
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   613
            path.extend(rcfiles(os.path.dirname(sys.argv[0]) +
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   614
                                  '/../etc/mercurial'))
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   615
        path.extend(rcfiles('/etc/mercurial'))
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   616
        path.append(os.path.expanduser('~/.hgrc'))
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   617
        path = [os.path.normpath(f) for f in path]
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   618
        return path
1292
141951276ba1 Use platform-appropriate rc file names.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1285
diff changeset
   619
1285
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   620
    def parse_patch_output(output_line):
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   621
        """parses the output produced by patch and returns the file name"""
1593
6bb3463b124b if a filename contains spaces, patch adds quote around it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
   622
        pf = output_line[14:]
6bb3463b124b if a filename contains spaces, patch adds quote around it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
   623
        if pf.startswith("'") and pf.endswith("'") and pf.find(" ") >= 0:
6bb3463b124b if a filename contains spaces, patch adds quote around it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
   624
            pf = pf[1:-1] # Remove the quotes
6bb3463b124b if a filename contains spaces, patch adds quote around it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
   625
        return pf
1285
1546c2aa6b30 Make 'hg import' platform independent.
Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 1270
diff changeset
   626
441
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   627
    def is_exec(f, last):
1082
ce96e316278a Update util.py docstrings, fix walk test
mpm@selenic.com
parents: 1081
diff changeset
   628
        """check whether a file is executable"""
2448
b77a2ef61b81 replace os.stat with os.lstat in some where.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2314
diff changeset
   629
        return (os.lstat(f).st_mode & 0100 != 0)
441
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   630
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   631
    def set_exec(f, mode):
2448
b77a2ef61b81 replace os.stat with os.lstat in some where.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2314
diff changeset
   632
        s = os.lstat(f).st_mode
441
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   633
        if (s & 0100 != 0) == mode:
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   634
            return
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   635
        if mode:
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   636
            # Turn on +x for every +r bit when making a file executable
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   637
            # and obey umask.
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   638
            umask = os.umask(0)
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   639
            os.umask(umask)
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   640
            os.chmod(f, s | (s & 0444) >> 2 & ~umask)
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   641
        else:
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   642
            os.chmod(f, s & 0666)
e8af362cfb01 Permission handling for the other OS
mpm@selenic.com
parents: 422
diff changeset
   643
1420
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   644
    def set_binary(fd):
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   645
        pass
b32b3509c7ab Avoid insertion/deletion of CRs on stdio during hg serve
olivier.maquelin@intel.com
parents: 1415
diff changeset
   646
419
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   647
    def pconvert(path):
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   648
        return path
28511fc21073 [PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff changeset
   649
886
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   650
    def localpath(path):
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   651
        return path
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   652
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   653
    normpath = os.path.normpath
2193
fb28ce04b349 add util.samestat function for windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2177
diff changeset
   654
    samestat = os.path.samestat
886
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
   655
422
10c43444a38e [PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents: 421
diff changeset
   656
    def makelock(info, pathname):
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   657
        try:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   658
            os.symlink(info, pathname)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   659
        except OSError, why:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   660
            if why.errno == errno.EEXIST:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   661
                raise
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   662
            else:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   663
                _makelock_file(info, pathname)
422
10c43444a38e [PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents: 421
diff changeset
   664
10c43444a38e [PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents: 421
diff changeset
   665
    def readlock(pathname):
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   666
        try:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   667
            return os.readlink(pathname)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   668
        except OSError, why:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   669
            if why.errno == errno.EINVAL:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   670
                return _readlock_file(pathname)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   671
            else:
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
   672
                raise
782
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   673
1877
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   674
    def testpid(pid):
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   675
        '''return False if pid dead, True if running or not sure'''
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   676
        try:
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   677
            os.kill(pid, 0)
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   678
            return True
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   679
        except OSError, inst:
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   680
            return inst.errno != errno.ESRCH
d314a89fa4f1 change lock format to let us detect and break stale locks.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1835
diff changeset
   681
782
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   682
    def explain_exit(code):
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   683
        """return a 2-tuple (desc, code) describing a process's status"""
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   684
        if os.WIFEXITED(code):
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   685
            val = os.WEXITSTATUS(code)
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   686
            return _("exited with status %d") % val, val
782
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   687
        elif os.WIFSIGNALED(code):
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   688
            val = os.WTERMSIG(code)
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   689
            return _("killed by signal %d") % val, val
782
cdb9e95b2fab Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents: 742
diff changeset
   690
        elif os.WIFSTOPPED(code):
912
302f83b85054 Minor tweak: os.STOPSIG -> os.WSTOPSIG. Pychecker spotted this one.
mark.williamson@cl.cam.ac.uk
parents: 897
diff changeset
   691
            val = os.WSTOPSIG(code)
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   692
            return _("stopped by signal %d") % val, val
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   693
        raise ValueError(_("invalid exit code"))
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   694
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   695
def opener(base, audit=True):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   696
    """
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   697
    return a function that opens files relative to base
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   698
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   699
    this function is used to hide the details of COW semantics and
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   700
    remote file access from higher level code.
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   701
    """
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   702
    p = base
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   703
    audit_p = audit
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   704
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   705
    def mktempcopy(name):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   706
        d, fn = os.path.split(name)
2177
6886bc0b77af merge with crew.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2165 2176
diff changeset
   707
        fd, temp = tempfile.mkstemp(prefix='.%s-' % fn, dir=d)
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   708
        os.close(fd)
2237
4a069064a39b reduce memory used by util.opener when making a temp copy of a file.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2220
diff changeset
   709
        ofp = posixfile(temp, "wb")
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   710
        try:
2220
6d3cc2a982f3 add filename to IOError if read of file fails.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2193
diff changeset
   711
            try:
2237
4a069064a39b reduce memory used by util.opener when making a temp copy of a file.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2220
diff changeset
   712
                ifp = posixfile(name, "rb")
2220
6d3cc2a982f3 add filename to IOError if read of file fails.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2193
diff changeset
   713
            except IOError, inst:
6d3cc2a982f3 add filename to IOError if read of file fails.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2193
diff changeset
   714
                if not getattr(inst, 'filename', None):
6d3cc2a982f3 add filename to IOError if read of file fails.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2193
diff changeset
   715
                    inst.filename = name
6d3cc2a982f3 add filename to IOError if read of file fails.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2193
diff changeset
   716
                raise
2237
4a069064a39b reduce memory used by util.opener when making a temp copy of a file.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2220
diff changeset
   717
            for chunk in filechunkiter(ifp):
4a069064a39b reduce memory used by util.opener when making a temp copy of a file.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2220
diff changeset
   718
                ofp.write(chunk)
4a069064a39b reduce memory used by util.opener when making a temp copy of a file.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2220
diff changeset
   719
            ifp.close()
4a069064a39b reduce memory used by util.opener when making a temp copy of a file.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2220
diff changeset
   720
            ofp.close()
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   721
        except:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   722
            try: os.unlink(temp)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   723
            except: pass
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   724
            raise
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   725
        st = os.lstat(name)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   726
        os.chmod(temp, st.st_mode)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   727
        return temp
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   728
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   729
    class atomictempfile(posixfile):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   730
        """the file will only be copied when rename is called"""
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   731
        def __init__(self, name, mode):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   732
            self.__name = name
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   733
            self.temp = mktempcopy(name)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   734
            posixfile.__init__(self, self.temp, mode)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   735
        def rename(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   736
            if not self.closed:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   737
                posixfile.close(self)
2308
cb520d961d6a Use platform path for renaming file in util.atomictempfile.rename()
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2284
diff changeset
   738
                rename(self.temp, localpath(self.__name))
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   739
        def __del__(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   740
            if not self.closed:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   741
                try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   742
                    os.unlink(self.temp)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   743
                except: pass
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   744
                posixfile.close(self)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   745
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   746
    class atomicfile(atomictempfile):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   747
        """the file will only be copied on close"""
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   748
        def __init__(self, name, mode):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   749
            atomictempfile.__init__(self, name, mode)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   750
        def close(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   751
            self.rename()
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   752
        def __del__(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   753
            self.rename()
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   754
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   755
    def o(path, mode="r", text=False, atomic=False, atomictemp=False):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   756
        if audit_p:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   757
            audit_path(path)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   758
        f = os.path.join(p, path)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   759
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   760
        if not text:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   761
            mode += "b" # for that other OS
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   762
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   763
        if mode[0] != "r":
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   764
            try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   765
                nlink = nlinks(f)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   766
            except OSError:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   767
                d = os.path.dirname(f)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   768
                if not os.path.isdir(d):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   769
                    os.makedirs(d)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   770
            else:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   771
                if atomic:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   772
                    return atomicfile(f, mode)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   773
                elif atomictemp:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   774
                    return atomictempfile(f, mode)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   775
                if nlink > 1:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   776
                    rename(mktempcopy(f), f)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   777
        return posixfile(f, mode)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   778
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   779
    return o
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
   780
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   781
class chunkbuffer(object):
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   782
    """Allow arbitrary sized chunks of data to be efficiently read from an
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   783
    iterator over chunks of arbitrary size."""
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   784
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   785
    def __init__(self, in_iter, targetsize = 2**16):
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   786
        """in_iter is the iterator that's iterating over the input chunks.
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   787
        targetsize is how big a buffer to try to maintain."""
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   788
        self.in_iter = iter(in_iter)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   789
        self.buf = ''
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   790
        self.targetsize = int(targetsize)
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   791
        if self.targetsize <= 0:
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   792
            raise ValueError(_("targetsize must be greater than 0, was %d") %
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   793
                             targetsize)
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   794
        self.iterempty = False
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   795
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   796
    def fillbuf(self):
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   797
        """Ignore target size; read every chunk from iterator until empty."""
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   798
        if not self.iterempty:
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   799
            collector = cStringIO.StringIO()
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   800
            collector.write(self.buf)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   801
            for ch in self.in_iter:
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   802
                collector.write(ch)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   803
            self.buf = collector.getvalue()
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   804
            self.iterempty = True
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   805
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   806
    def read(self, l):
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   807
        """Read L bytes of data from the iterator of chunks of data.
1308
2073e5a71008 Cleanup of tabs and trailing spaces.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1285
diff changeset
   808
        Returns less than L bytes if the iterator runs dry."""
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   809
        if l > len(self.buf) and not self.iterempty:
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   810
            # Clamp to a multiple of self.targetsize
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   811
            targetsize = self.targetsize * ((l // self.targetsize) + 1)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   812
            collector = cStringIO.StringIO()
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   813
            collector.write(self.buf)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   814
            collected = len(self.buf)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   815
            for chunk in self.in_iter:
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   816
                collector.write(chunk)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   817
                collected += len(chunk)
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   818
                if collected >= targetsize:
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   819
                    break
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   820
            if collected < targetsize:
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   821
                self.iterempty = True
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   822
            self.buf = collector.getvalue()
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
   823
        s, self.buf = self.buf[:l], buffer(self.buf, l)
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   824
        return s
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   825
2462
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   826
def filechunkiter(f, size=65536, limit=None):
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   827
    """Create a generator that produces the data in the file size
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   828
    (default 65536) bytes at a time, up to optional limit (default is
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   829
    to read all data).  Chunks may be less than size bytes if the
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   830
    chunk is the last chunk in the file, or the file is a socket or
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   831
    some other type of file that sometimes reads less data than is
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   832
    requested."""
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   833
    assert size >= 0
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   834
    assert limit is None or limit >= 0
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   835
    while True:
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   836
        if limit is None: nbytes = size
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   837
        else: nbytes = min(limit, size)
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   838
        s = nbytes and f.read(nbytes)
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   839
        if not s: break
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
   840
        if limit: limit -= len(s)
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
   841
        yield s
1320
5f277e73778f Fix up representation of dates in hgweb.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1312
diff changeset
   842
1321
b47f96a178a3 Clean up date and timezone handling.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1320
diff changeset
   843
def makedate():
1482
4d38b85e60aa fix handling of daylight saving time
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1479
diff changeset
   844
    lt = time.localtime()
4d38b85e60aa fix handling of daylight saving time
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1479
diff changeset
   845
    if lt[8] == 1 and time.daylight:
4d38b85e60aa fix handling of daylight saving time
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1479
diff changeset
   846
        tz = time.altzone
4d38b85e60aa fix handling of daylight saving time
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1479
diff changeset
   847
    else:
4d38b85e60aa fix handling of daylight saving time
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1479
diff changeset
   848
        tz = time.timezone
4d38b85e60aa fix handling of daylight saving time
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1479
diff changeset
   849
    return time.mktime(lt), tz
1329
8f06817bf266 Allow files to be opened in text mode, even on Windows.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1321
diff changeset
   850
1987
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   851
def datestr(date=None, format='%a %b %d %H:%M:%S %Y', timezone=True):
1321
b47f96a178a3 Clean up date and timezone handling.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1320
diff changeset
   852
    """represent a (unixtime, offset) tuple as a localized time.
b47f96a178a3 Clean up date and timezone handling.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1320
diff changeset
   853
    unixtime is seconds since the epoch, and offset is the time zone's
1987
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   854
    number of seconds away from UTC. if timezone is false, do not
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   855
    append time zone to string."""
1321
b47f96a178a3 Clean up date and timezone handling.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1320
diff changeset
   856
    t, tz = date or makedate()
1987
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   857
    s = time.strftime(format, time.gmtime(float(t) - tz))
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   858
    if timezone:
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   859
        s += " %+03d%02d" % (-tz / 3600, ((-tz % 3600) / 60))
04c17fc39c84 add changelog style to command line template.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1976
diff changeset
   860
    return s
1829
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   861
1903
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   862
def shortuser(user):
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   863
    """Return a short representation of a user name or email address."""
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   864
    f = user.find('@')
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   865
    if f >= 0:
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   866
        user = user[:f]
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   867
    f = user.find('<')
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   868
    if f >= 0:
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   869
        user = user[f+1:]
e4abeafd6eb1 move shortuser into util module.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   870
    return user
1920
b7cc0f323a4c merge with crew.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1903 1882
diff changeset
   871
1829
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   872
def walkrepos(path):
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   873
    '''yield every hg repository under path, recursively.'''
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   874
    def errhandler(err):
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   875
        if err.filename == path:
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   876
            raise err
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   877
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   878
    for root, dirs, files in os.walk(path, onerror=errhandler):
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   879
        for d in dirs:
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   880
            if d == '.hg':
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   881
                yield root
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   882
                dirs[:] = []
b0f6af327fd4 hgwebdir: export collections of repos
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1635
diff changeset
   883
                break
1951
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   884
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   885
_rcpath = None
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   886
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   887
def rcpath():
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   888
    '''return hgrc search path. if env var HGRCPATH is set, use it.
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   889
    for each item in path, if directory, use files ending in .rc,
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   890
    else use item.
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   891
    make HGRCPATH empty to only look in .hg/hgrc of current repo.
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   892
    if no HGRCPATH, use default os-specific path.'''
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   893
    global _rcpath
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   894
    if _rcpath is None:
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   895
        if 'HGRCPATH' in os.environ:
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   896
            _rcpath = []
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   897
            for p in os.environ['HGRCPATH'].split(os.pathsep):
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   898
                if not p: continue
1956
16750010813d use a proper test instead of catching every exception
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1951
diff changeset
   899
                if os.path.isdir(p):
1951
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   900
                    for f in os.listdir(p):
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   901
                        if f.endswith('.rc'):
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   902
                            _rcpath.append(os.path.join(p, f))
1956
16750010813d use a proper test instead of catching every exception
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1951
diff changeset
   903
                else:
16750010813d use a proper test instead of catching every exception
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1951
diff changeset
   904
                    _rcpath.append(p)
1951
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   905
        else:
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   906
            _rcpath = os_rcpath()
696230e52e4d add HGRCPATH env var, list of places to look for hgrc files.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1920
diff changeset
   907
    return _rcpath