#!/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_bzr():
try:
import bzrlib
return True
except ImportError:
return False
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_icasefs():
# Stolen from mercurial.util
fd, path = tempfile.mkstemp(prefix=tempprefix)
os.close(fd)
try:
s1 = os.stat(path)
d, b = os.path.split(path)
p2 = os.path.join(d, b.upper())
if path == p2:
p2 = os.path.join(d, b.lower())
try:
s2 = os.stat(p2)
return s2 == s1
except:
return False
finally:
os.remove(path)
def has_inotify():
try:
import hgext.inotify.linux.watcher
return True
except ImportError:
return False
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
version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR
if version < (1, 4):
return False
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
def has_outer_repo():
return matchoutput('hg root 2>&1', r'')
checks = {
"baz": (has_baz, "GNU Arch baz client"),
"bzr": (has_bzr, "Canonical's Bazaar 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"),
"icasefs": (has_icasefs, "case insensitive file system"),
"inotify": (has_inotify, "inotify extension support"),
"lsprof": (has_lsprof, "python lsprof module"),
"mtn": (has_mtn, "monotone client (> 0.31)"),
"outer-repo": (has_outer_repo, "outer repo"),
"pygments": (has_pygments, "Pygments source highlighting library"),
"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"),
}
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)