Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/util.py @ 785:46a8dd3145cc
Fix undo after aborted commit bug
Commit would overwrite undo.dirstate unconditionally, so an undo after
an aborted commit would restore the dirstate from the aborted commit
and not the prior transaction.
This copies dirstate to journal.dirstate and moves it after a
successful transaction.
author | mpm@selenic.com |
---|---|
date | Wed, 27 Jul 2005 18:16:20 -0800 |
parents | cdb9e95b2fab |
children | 445970ccf57a 8f5637f0a0c0 b65af904d6d7 |
rev | line source |
---|---|
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
1 # util.py - utility functions and platform specfic implementations |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
2 # |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
3 # Copyright 2005 K. Thananchayan <thananck@yahoo.com> |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
4 # |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
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
changeset
|
6 # of the GNU General Public License, incorporated herein by reference. |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
7 |
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
8 import os, errno |
724
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
9 from demandload import * |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
10 demandload(globals(), "re") |
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
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
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
21 def always(fn): return True |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
22 def never(fn): return False |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
23 |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
24 def globre(pat, head = '^', tail = '$'): |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
25 "convert a glob pattern into a regexp" |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
26 i, n = 0, len(pat) |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
27 res = '' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
28 group = False |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
29 def peek(): return i < n and pat[i] |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
30 while i < n: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
31 c = pat[i] |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
32 i = i+1 |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
33 if c == '*': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
34 if peek() == '*': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
35 i += 1 |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
36 res += '.*' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
37 else: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
38 res += '[^/]*' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
39 elif c == '?': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
40 res += '.' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
41 elif c == '[': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
42 j = i |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
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
diff
changeset
|
44 j += 1 |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
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
changeset
|
46 j += 1 |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
47 if j >= n: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
48 res += '\\[' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
49 else: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
50 stuff = pat[i:j].replace('\\','\\\\') |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
51 i = j + 1 |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
52 if 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
|
53 stuff = '^' + stuff[1:] |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
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
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
56 res = '%s[%s]' % (res, stuff) |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
57 elif c == '{': |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
58 group = True |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
59 res += '(?:' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
60 elif c == '}' and group: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
61 res += ')' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
62 group = False |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
63 elif c == ',' and group: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
64 res += '|' |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
65 else: |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
66 res += re.escape(c) |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
67 return head + res + tail |
1c0c413cccdd
Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents:
705
diff
changeset
|
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
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
117 def copytree(src, dst, copyfile): |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
118 """Copy a directory tree, files are copied using 'copyfile'.""" |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
119 names = os.listdir(src) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
120 os.mkdir(dst) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
121 |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
122 for name in names: |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
123 srcname = os.path.join(src, name) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
124 dstname = os.path.join(dst, name) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
125 if os.path.isdir(srcname): |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
126 copytree(srcname, dstname, copyfile) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
127 elif os.path.isfile(srcname): |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
128 copyfile(srcname, dstname) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
129 else: |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
130 raise IOError("Not a regular file: %r" % srcname) |
df78d8ccac4c
Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
667
diff
changeset
|
131 |
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
132 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
|
133 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
|
134 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
|
135 os.close(ld) |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
136 |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
137 def _readlock_file(pathname): |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
138 return file(pathname).read() |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
139 |
421 | 140 # Platfor specific varients |
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
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
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
150 def pconvert(path): |
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
parents:
diff
changeset
|
151 return path.replace("\\", "/") |
422
10c43444a38e
[PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
parents:
421
diff
changeset
|
152 |
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
153 makelock = _makelock_file |
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
698
diff
changeset
|
154 readlock = _readlock_file |
461 | 155 |
782
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
156 def explain_exit(code): |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
157 return "exited with status %d" % code, code |
cdb9e95b2fab
Provided platform dependent implementations for explain_exit
thananck@yahoo.com
parents:
742
diff
changeset
|
158 |
419
28511fc21073
[PATCH] file seperator handling for the other 'OS'
mpm@selenic.com
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 |
28511fc21073
[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") |