author | mpm@selenic.com |
Thu, 28 Jul 2005 07:46:08 -0800 | |
changeset 787 | f199e1887889 |
parent 782 | cdb9e95b2fab |
child 793 | 445970ccf57a |
child 808 | 8f5637f0a0c0 |
child 812 | b65af904d6d7 |
permissions | -rw-r--r-- |
419
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[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
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|
1 |
# util.py - utility functions and platform specfic implementations |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
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|
2 |
# |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
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|
3 |
# Copyright 2005 K. Thananchayan <thananck@yahoo.com> |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
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|
4 |
# |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
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|
5 |
# This software may be used and distributed according to the terms |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
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|
6 |
# of the GNU General Public License, incorporated herein by reference. |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
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|
7 |
|
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
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|
8 |
import os, errno |
724
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
9 |
from demandload import * |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
10 |
demandload(globals(), "re") |
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
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parents:
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|
11 |
|
556 | 12 |
def unique(g): |
13 |
seen = {} |
|
14 |
for f in g: |
|
15 |
if f not in seen: |
|
16 |
seen[f] = 1 |
|
17 |
yield f |
|
18 |
||
508 | 19 |
class CommandError(Exception): pass |
20 |
||
724
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
21 |
def always(fn): return True |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
22 |
def never(fn): return False |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
23 |
|
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
24 |
def globre(pat, head = '^', tail = '$'): |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
25 |
"convert a glob pattern into a regexp" |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
26 |
i, n = 0, len(pat) |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
27 |
res = '' |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
28 |
group = False |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
29 |
def peek(): return i < n and pat[i] |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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30 |
while i < n: |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
31 |
c = pat[i] |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
32 |
i = i+1 |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
33 |
if c == '*': |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
34 |
if peek() == '*': |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
35 |
i += 1 |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
36 |
res += '.*' |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
37 |
else: |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
38 |
res += '[^/]*' |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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diff
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|
39 |
elif c == '?': |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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40 |
res += '.' |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
41 |
elif c == '[': |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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42 |
j = i |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
43 |
if j < n and pat[j] in '!]': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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44 |
j += 1 |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
45 |
while j < n and pat[j] != ']': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
46 |
j += 1 |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
47 |
if j >= n: |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
48 |
res += '\\[' |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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49 |
else: |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
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|
50 |
stuff = pat[i:j].replace('\\','\\\\') |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
51 |
i = j + 1 |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
52 |
if stuff[0] == '!': |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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|
53 |
stuff = '^' + stuff[1:] |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
54 |
elif stuff[0] == '^': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
55 |
stuff = '\\' + stuff |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
56 |
res = '%s[%s]' % (res, stuff) |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
57 |
elif c == '{': |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
58 |
group = True |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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diff
changeset
|
59 |
res += '(?:' |
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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|
60 |
elif c == '}' and group: |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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changeset
|
61 |
res += ')' |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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diff
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|
62 |
group = False |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
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|
63 |
elif c == ',' and group: |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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changeset
|
64 |
res += '|' |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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|
65 |
else: |
1c0c413cccdd
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Bryan O'Sullivan <bos@serpentine.com>
parents:
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diff
changeset
|
66 |
res += re.escape(c) |
1c0c413cccdd
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parents:
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|
67 |
return head + res + tail |
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parents:
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|
68 |
|
742 | 69 |
def matcher(cwd, pats, inc, exc, head = ''): |
70 |
def regex(name, tail): |
|
71 |
'''convert a pattern into a regular expression''' |
|
72 |
if name.startswith('re:'): |
|
73 |
return name[3:] |
|
74 |
elif name.startswith('path:'): |
|
75 |
return '^' + re.escape(name[5:]) + '$' |
|
76 |
elif name.startswith('glob:'): |
|
77 |
return head + globre(name[5:], '', tail) |
|
78 |
return head + globre(name, '', tail) |
|
79 |
||
80 |
def under(fn): |
|
81 |
"""check if fn is under our cwd""" |
|
82 |
return not cwd or fn.startswith(cwdsep) |
|
83 |
||
84 |
def matchfn(pats, tail): |
|
85 |
"""build a matching function from a set of patterns""" |
|
86 |
if pats: |
|
87 |
pat = '(?:%s)' % '|'.join([regex(p, tail) for p in pats]) |
|
88 |
if cwd: |
|
89 |
pat = re.escape(cwd + os.sep) + pat |
|
90 |
return re.compile(pat).match |
|
91 |
||
92 |
cwdsep = cwd + os.sep |
|
93 |
patmatch = matchfn(pats, '$') or (lambda fn: True) |
|
94 |
incmatch = matchfn(inc, '(?:/|$)') or under |
|
95 |
excmatch = matchfn(exc, '(?:/|$)') or (lambda fn: False) |
|
96 |
||
97 |
return lambda fn: (incmatch(fn) and not excmatch(fn) and |
|
98 |
(fn.endswith('/') or patmatch(fn))) |
|
99 |
||
521 | 100 |
def system(cmd, errprefix=None): |
508 | 101 |
"""execute a shell command that must succeed""" |
102 |
rc = os.system(cmd) |
|
103 |
if rc: |
|
521 | 104 |
errmsg = "%s %s" % (os.path.basename(cmd.split(None, 1)[0]), |
105 |
explain_exit(rc)[0]) |
|
106 |
if errprefix: |
|
107 |
errmsg = "%s: %s" % (errprefix, errmsg) |
|
508 | 108 |
raise CommandError(errmsg) |
109 |
||
421 | 110 |
def rename(src, dst): |
111 |
try: |
|
112 |
os.rename(src, dst) |
|
113 |
except: |
|
114 |
os.unlink(dst) |
|
115 |
os.rename(src, dst) |
|
116 |
||
698
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Use python function instead of external 'cp' command when cloning repos.
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117 |
def copytree(src, dst, copyfile): |
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118 |
"""Copy a directory tree, files are copied using 'copyfile'.""" |
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119 |
names = os.listdir(src) |
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120 |
os.mkdir(dst) |
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121 |
|
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122 |
for name in names: |
df78d8ccac4c
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123 |
srcname = os.path.join(src, name) |
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parents:
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124 |
dstname = os.path.join(dst, name) |
df78d8ccac4c
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|
125 |
if os.path.isdir(srcname): |
df78d8ccac4c
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parents:
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126 |
copytree(srcname, dstname, copyfile) |
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127 |
elif os.path.isfile(srcname): |
df78d8ccac4c
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parents:
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|
128 |
copyfile(srcname, dstname) |
df78d8ccac4c
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129 |
else: |
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|
130 |
raise IOError("Not a regular file: %r" % srcname) |
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131 |
|
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
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parents:
698
diff
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|
132 |
def _makelock_file(info, pathname): |
5ca319a641e1
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parents:
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diff
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|
133 |
ld = os.open(pathname, os.O_CREAT | os.O_WRONLY | os.O_EXCL) |
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parents:
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diff
changeset
|
134 |
os.write(ld, info) |
5ca319a641e1
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parents:
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diff
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|
135 |
os.close(ld) |
5ca319a641e1
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parents:
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diff
changeset
|
136 |
|
5ca319a641e1
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parents:
698
diff
changeset
|
137 |
def _readlock_file(pathname): |
5ca319a641e1
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parents:
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|
138 |
return file(pathname).read() |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
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parents:
698
diff
changeset
|
139 |
|
421 | 140 |
# Platfor specific varients |
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
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parents:
diff
changeset
|
141 |
if os.name == 'nt': |
461 | 142 |
nulldev = 'NUL:' |
143 |
||
441 | 144 |
def is_exec(f, last): |
145 |
return last |
|
146 |
||
147 |
def set_exec(f, mode): |
|
148 |
pass |
|
515 | 149 |
|
419
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[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
150 |
def pconvert(path): |
28511fc21073
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mpm@selenic.com
parents:
diff
changeset
|
151 |
return path.replace("\\", "/") |
422
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[PATCH] Enables lock work under the other 'OS'
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parents:
421
diff
changeset
|
152 |
|
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
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parents:
698
diff
changeset
|
153 |
makelock = _makelock_file |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
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parents:
698
diff
changeset
|
154 |
readlock = _readlock_file |
461 | 155 |
|
782
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
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diff
changeset
|
156 |
def explain_exit(code): |
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parents:
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diff
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|
157 |
return "exited with status %d" % code, code |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
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diff
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|
158 |
|
419
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[PATCH] file seperator handling for the other 'OS'
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parents:
diff
changeset
|
159 |
else: |
461 | 160 |
nulldev = '/dev/null' |
161 |
||
441 | 162 |
def is_exec(f, last): |
163 |
return (os.stat(f).st_mode & 0100 != 0) |
|
164 |
||
165 |
def set_exec(f, mode): |
|
166 |
s = os.stat(f).st_mode |
|
167 |
if (s & 0100 != 0) == mode: |
|
168 |
return |
|
169 |
if mode: |
|
170 |
# Turn on +x for every +r bit when making a file executable |
|
171 |
# and obey umask. |
|
172 |
umask = os.umask(0) |
|
173 |
os.umask(umask) |
|
174 |
os.chmod(f, s | (s & 0444) >> 2 & ~umask) |
|
175 |
else: |
|
176 |
os.chmod(f, s & 0666) |
|
177 |
||
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
178 |
def pconvert(path): |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
179 |
return path |
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[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
180 |
|
422
10c43444a38e
[PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents:
421
diff
changeset
|
181 |
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
|
182 |
try: |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
183 |
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
|
184 |
except OSError, why: |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
185 |
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
|
186 |
raise |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
187 |
else: |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
188 |
_makelock_file(info, pathname) |
422
10c43444a38e
[PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents:
421
diff
changeset
|
189 |
|
10c43444a38e
[PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents:
421
diff
changeset
|
190 |
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
|
191 |
try: |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
192 |
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
|
193 |
except OSError, why: |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
194 |
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
|
195 |
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
|
196 |
else: |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
197 |
raise |
782
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
198 |
|
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
199 |
def explain_exit(code): |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
200 |
"""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
|
201 |
if os.WIFEXITED(code): |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
202 |
val = os.WEXITSTATUS(code) |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
203 |
return "exited with status %d" % val, val |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
204 |
elif os.WIFSIGNALED(code): |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
205 |
val = os.WTERMSIG(code) |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
206 |
return "killed by signal %d" % val, val |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
207 |
elif os.WIFSTOPPED(code): |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
208 |
val = os.STOPSIG(code) |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
209 |
return "stopped by signal %d" % val, val |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
210 |
raise ValueError("invalid exit code") |