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import os, stat, socket
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()
try:
ret = fh.close()
except IOError:
# Happen in Windows test environment
ret = 1
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 bzrlib.__doc__ is not None
except ImportError:
return False
def has_bzr114():
try:
import bzrlib
return (bzrlib.__doc__ is not None
and bzrlib.version_info[:2] >= (1, 14))
except ImportError:
return False
def has_cvs():
re = r'Concurrent Versions System.*?server'
return matchoutput('cvs --version 2>&1', re) and not has_msys()
def has_darcs():
return matchoutput('darcs --version', r'2\.[2-9]', True)
def has_mtn():
return matchoutput('mtn --version', r'monotone', True) and not matchoutput(
'mtn --version', r'monotone 0\.', True)
def has_eol_in_paths():
try:
fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix, suffix='\n\r')
os.close(fd)
os.remove(path)
return True
except (IOError, OSError):
return False
def has_executablebit():
try:
EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
try:
os.close(fh)
m = os.stat(fn).st_mode & 0777
new_file_has_exec = m & EXECFLAGS
os.chmod(fn, m ^ EXECFLAGS)
exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m)
finally:
os.unlink(fn)
except (IOError, OSError):
# we don't care, the user probably won't be able to commit anyway
return False
return not (new_file_has_exec or exec_flags_cannot_flip)
def has_icasefs():
# Stolen from mercurial.util
fd, path = tempfile.mkstemp(dir='.', 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 OSError:
return False
finally:
os.remove(path)
def has_inotify():
try:
import hgext.inotify.linux.watcher
except ImportError:
return False
name = tempfile.mktemp(dir='.', prefix=tempprefix)
sock = socket.socket(socket.AF_UNIX)
try:
sock.bind(name)
except socket.error, err:
return False
sock.close()
os.unlink(name)
return True
def has_fifo():
if getattr(os, "mkfifo", None) is None:
return False
name = tempfile.mktemp(dir='.', prefix=tempprefix)
try:
os.mkfifo(name)
os.unlink(name)
return True
except OSError:
return False
def has_cacheable_fs():
from mercurial import util
fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
os.close(fd)
try:
return util.cachestat(path).cacheable()
finally:
os.remove(path)
def has_lsprof():
try:
import _lsprof
return True
except ImportError:
return False
def has_gettext():
return matchoutput('msgfmt --version', 'GNU gettext-tools')
def has_git():
return matchoutput('git --version 2>&1', r'^git version')
def has_docutils():
try:
from docutils.core import publish_cmdline
return True
except ImportError:
return False
def getsvnversion():
m = matchoutput('svn --version 2>&1', r'^svn,\s+version\s+(\d+)\.(\d+)')
if not m:
return (0, 0)
return (int(m.group(1)), int(m.group(2)))
def has_svn15():
return getsvnversion() >= (1, 5)
def has_svn13():
return getsvnversion() >= (1, 3)
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_p4():
return (matchoutput('p4 -V', r'Rev\. P4/') and
matchoutput('p4d -V', r'Rev\. P4D/'))
def has_symlink():
if getattr(os, "symlink", None) is None:
return False
name = tempfile.mktemp(dir='.', prefix=tempprefix)
try:
os.symlink(".", name)
os.unlink(name)
return True
except (OSError, AttributeError):
return False
def has_hardlink():
from mercurial import util
fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
os.close(fh)
name = tempfile.mktemp(dir='.', prefix=tempprefix)
try:
try:
util.oslink(fn, name)
os.unlink(name)
return True
except OSError:
return False
finally:
os.unlink(fn)
def has_tla():
return matchoutput('tla --version 2>&1', r'The GNU Arch Revision')
def has_gpg():
return matchoutput('gpg --version 2>&1', r'GnuPG')
def has_unix_permissions():
d = tempfile.mkdtemp(dir='.', prefix=tempprefix)
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_pyflakes():
return matchoutput("sh -c \"echo 'import re' 2>&1 | pyflakes\"",
r"<stdin>:1: 're' imported but unused",
True)
def has_pygments():
try:
import pygments
return True
except ImportError:
return False
def has_outer_repo():
# failing for other reasons than 'no repo' imply that there is a repo
return not matchoutput('hg root 2>&1',
r'abort: no repository found', True)
def has_ssl():
try:
import ssl
import OpenSSL
OpenSSL.SSL.Context
return True
except ImportError:
return False
def has_windows():
return os.name == 'nt'
def has_system_sh():
return os.name != 'nt'
def has_serve():
return os.name != 'nt' # gross approximation
def has_tic():
return matchoutput('test -x "`which tic`"', '')
def has_msys():
return os.getenv('MSYSTEM')
checks = {
"true": (lambda: True, "yak shaving"),
"false": (lambda: False, "nail clipper"),
"baz": (has_baz, "GNU Arch baz client"),
"bzr": (has_bzr, "Canonical's Bazaar client"),
"bzr114": (has_bzr114, "Canonical's Bazaar client >= 1.14"),
"cacheable": (has_cacheable_fs, "cacheable filesystem"),
"cvs": (has_cvs, "cvs client/server"),
"darcs": (has_darcs, "darcs client"),
"docutils": (has_docutils, "Docutils text processing library"),
"eol-in-paths": (has_eol_in_paths, "end-of-lines in paths"),
"execbit": (has_executablebit, "executable bit"),
"fifo": (has_fifo, "named pipes"),
"gettext": (has_gettext, "GNU Gettext (msgfmt)"),
"git": (has_git, "git command line client"),
"gpg": (has_gpg, "gpg client"),
"hardlink": (has_hardlink, "hardlinks"),
"icasefs": (has_icasefs, "case insensitive file system"),
"inotify": (has_inotify, "inotify extension support"),
"lsprof": (has_lsprof, "python lsprof module"),
"mtn": (has_mtn, "monotone client (>= 1.0)"),
"outer-repo": (has_outer_repo, "outer repo"),
"p4": (has_p4, "Perforce server and client"),
"pyflakes": (has_pyflakes, "Pyflakes python linter"),
"pygments": (has_pygments, "Pygments source highlighting library"),
"serve": (has_serve, "platform and python can manage 'hg serve -d'"),
"ssl": (has_ssl, "python >= 2.6 ssl module and python OpenSSL"),
"svn": (has_svn, "subversion client and admin tools"),
"svn13": (has_svn13, "subversion client and admin tools >= 1.3"),
"svn15": (has_svn15, "subversion client and admin tools >= 1.5"),
"svn-bindings": (has_svn_bindings, "subversion python bindings"),
"symlink": (has_symlink, "symbolic links"),
"system-sh": (has_system_sh, "system() uses sh"),
"tic": (has_tic, "terminfo compiler"),
"tla": (has_tla, "GNU Arch tla client"),
"unix-permissions": (has_unix_permissions, "unix-style permissions"),
"windows": (has_windows, "Windows"),
"msys": (has_msys, "Windows with MSYS"),
}
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