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add a fix for issue 1175...
add a fix for issue 1175 If we copy a file followed by an update, it's possible for the parent manifest to no longer contain the source file of the copy, which could cause commit to fail. If this happens, we search backwares from the first parent to find the most likely original revision.

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hghave
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#!/usr/bin/env python
"""Test the running system for features availability. Exit with zero
if all features are there, non-zero otherwise. If a feature name is
prefixed with "no-", the absence of feature is tested.
"""
import optparse
import os
import re
import sys
import tempfile
tempprefix = 'hg-hghave-'
def matchoutput(cmd, regexp, ignorestatus=False):
"""Return True if cmd executes successfully and its output
is matched by the supplied regular expression.
"""
r = re.compile(regexp)
fh = os.popen(cmd)
s = fh.read()
ret = fh.close()
return (ignorestatus or ret is None) and r.search(s)
def has_baz():
return matchoutput('baz --version 2>&1', r'baz Bazaar version')
def has_cvs():
re = r'Concurrent Versions System.*?server'
return matchoutput('cvs --version 2>&1', re)
def has_cvsps():
return matchoutput('cvsps -h -q 2>&1', r'cvsps version', True)
def has_darcs():
return matchoutput('darcs', r'darcs version', True)
def has_mtn():
return matchoutput('mtn --version', r'monotone', True) and not matchoutput(
'mtn --version', r'monotone 0\.(\d|[12]\d|3[01])[^\d]', True)
def has_eol_in_paths():
try:
fd, path = tempfile.mkstemp(prefix=tempprefix, suffix='\n\r')
os.close(fd)
os.remove(path)
return True
except:
return False
def has_executablebit():
fd, path = tempfile.mkstemp(prefix=tempprefix)
os.close(fd)
try:
s = os.lstat(path).st_mode
os.chmod(path, s | 0100)
return (os.lstat(path).st_mode & 0100 != 0)
finally:
os.remove(path)
def has_fifo():
return hasattr(os, "mkfifo")
def has_hotshot():
try:
# hotshot.stats tests hotshot and many problematic dependencies
# like profile.
import hotshot.stats
return True
except ImportError:
return False
def has_lsprof():
try:
import _lsprof
return True
except ImportError:
return False
def has_git():
return matchoutput('git --version 2>&1', r'^git version')
def has_svn():
return matchoutput('svn --version 2>&1', r'^svn, version') and \
matchoutput('svnadmin --version 2>&1', r'^svnadmin, version')
def has_svn_bindings():
try:
import svn.core
return True
except ImportError:
return False
def has_symlink():
return hasattr(os, "symlink")
def has_tla():
return matchoutput('tla --version 2>&1', r'The GNU Arch Revision')
def has_unix_permissions():
d = tempfile.mkdtemp(prefix=tempprefix, dir=".")
try:
fname = os.path.join(d, 'foo')
for umask in (077, 007, 022):
os.umask(umask)
f = open(fname, 'w')
f.close()
mode = os.stat(fname).st_mode
os.unlink(fname)
if mode & 0777 != ~umask & 0666:
return False
return True
finally:
os.rmdir(d)
def has_pygments():
try:
import pygments
return True
except ImportError:
return False
checks = {
"baz": (has_baz, "GNU Arch baz client"),
"cvs": (has_cvs, "cvs client/server"),
"cvsps": (has_cvsps, "cvsps utility"),
"darcs": (has_darcs, "darcs client"),
"eol-in-paths": (has_eol_in_paths, "end-of-lines in paths"),
"execbit": (has_executablebit, "executable bit"),
"fifo": (has_fifo, "named pipes"),
"git": (has_git, "git command line client"),
"hotshot": (has_hotshot, "python hotshot module"),
"lsprof": (has_lsprof, "python lsprof module"),
"mtn": (has_mtn, "monotone client (> 0.31)"),
"svn": (has_svn, "subversion client and admin tools"),
"svn-bindings": (has_svn_bindings, "subversion python bindings"),
"symlink": (has_symlink, "symbolic links"),
"tla": (has_tla, "GNU Arch tla client"),
"unix-permissions": (has_unix_permissions, "unix-style permissions"),
"pygments": (has_pygments, "Pygments source highlighting library"),
}
def list_features():
for name, feature in checks.iteritems():
desc = feature[1]
print name + ':', desc
parser = optparse.OptionParser("%prog [options] [features]")
parser.add_option("--list-features", action="store_true",
help="list available features")
parser.add_option("-q", "--quiet", action="store_true",
help="check features silently")
if __name__ == '__main__':
options, args = parser.parse_args()
if options.list_features:
list_features()
sys.exit(0)
quiet = options.quiet
failures = 0
def error(msg):
global failures
if not quiet:
sys.stderr.write(msg + '\n')
failures += 1
for feature in args:
negate = feature.startswith('no-')
if negate:
feature = feature[3:]
if feature not in checks:
error('skipped: unknown feature: ' + feature)
continue
check, desc = checks[feature]
if not negate and not check():
error('skipped: missing feature: ' + desc)
elif negate and check():
error('skipped: system supports %s' % desc)
if failures != 0:
sys.exit(1)