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import os, stat, socket
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import re
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import sys
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import tempfile
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tempprefix = 'hg-hghave-'
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def matchoutput(cmd, regexp, ignorestatus=False):
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"""Return True if cmd executes successfully and its output
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is matched by the supplied regular expression.
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"""
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r = re.compile(regexp)
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fh = os.popen(cmd)
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s = fh.read()
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try:
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ret = fh.close()
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except IOError:
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# Happen in Windows test environment
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ret = 1
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return (ignorestatus or ret is None) and r.search(s)
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def has_baz():
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return matchoutput('baz --version 2>&1', r'baz Bazaar version')
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def has_bzr():
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try:
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import bzrlib
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return bzrlib.__doc__ is not None
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except ImportError:
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return False
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def has_bzr114():
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try:
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import bzrlib
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return (bzrlib.__doc__ is not None
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and bzrlib.version_info[:2] >= (1, 14))
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except ImportError:
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return False
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def has_cvs():
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re = r'Concurrent Versions System.*?server'
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return matchoutput('cvs --version 2>&1', re) and not has_msys()
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def has_darcs():
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return matchoutput('darcs --version', r'2\.[2-9]', True)
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def has_mtn():
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return matchoutput('mtn --version', r'monotone', True) and not matchoutput(
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'mtn --version', r'monotone 0\.', True)
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def has_eol_in_paths():
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try:
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fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix, suffix='\n\r')
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os.close(fd)
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os.remove(path)
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return True
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except (IOError, OSError):
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return False
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def has_executablebit():
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try:
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EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
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fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
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try:
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os.close(fh)
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m = os.stat(fn).st_mode & 0777
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new_file_has_exec = m & EXECFLAGS
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os.chmod(fn, m ^ EXECFLAGS)
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exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m)
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finally:
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os.unlink(fn)
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except (IOError, OSError):
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# we don't care, the user probably won't be able to commit anyway
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return False
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return not (new_file_has_exec or exec_flags_cannot_flip)
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def has_icasefs():
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# Stolen from mercurial.util
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fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
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os.close(fd)
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try:
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s1 = os.stat(path)
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d, b = os.path.split(path)
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p2 = os.path.join(d, b.upper())
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if path == p2:
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p2 = os.path.join(d, b.lower())
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try:
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s2 = os.stat(p2)
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return s2 == s1
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except OSError:
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return False
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finally:
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os.remove(path)
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def has_inotify():
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try:
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import hgext.inotify.linux.watcher
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except ImportError:
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return False
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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sock = socket.socket(socket.AF_UNIX)
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try:
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sock.bind(name)
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except socket.error, err:
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return False
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sock.close()
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os.unlink(name)
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return True
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def has_fifo():
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if getattr(os, "mkfifo", None) is None:
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return False
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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try:
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os.mkfifo(name)
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os.unlink(name)
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return True
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except OSError:
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return False
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def has_killdaemons():
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return True
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def has_cacheable_fs():
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from mercurial import util
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fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
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os.close(fd)
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try:
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return util.cachestat(path).cacheable()
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finally:
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os.remove(path)
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def has_lsprof():
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try:
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import _lsprof
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return True
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except ImportError:
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return False
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def has_gettext():
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return matchoutput('msgfmt --version', 'GNU gettext-tools')
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def has_git():
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return matchoutput('git --version 2>&1', r'^git version')
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def has_docutils():
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try:
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from docutils.core import publish_cmdline
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return True
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except ImportError:
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return False
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def getsvnversion():
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m = matchoutput('svn --version 2>&1', r'^svn,\s+version\s+(\d+)\.(\d+)')
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if not m:
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return (0, 0)
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return (int(m.group(1)), int(m.group(2)))
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def has_svn15():
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return getsvnversion() >= (1, 5)
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def has_svn13():
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return getsvnversion() >= (1, 3)
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def has_svn():
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return matchoutput('svn --version 2>&1', r'^svn, version') and \
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matchoutput('svnadmin --version 2>&1', r'^svnadmin, version')
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def has_svn_bindings():
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try:
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import svn.core
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version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR
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if version < (1, 4):
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return False
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return True
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except ImportError:
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return False
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def has_p4():
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return (matchoutput('p4 -V', r'Rev\. P4/') and
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matchoutput('p4d -V', r'Rev\. P4D/'))
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def has_symlink():
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if getattr(os, "symlink", None) is None:
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return False
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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try:
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os.symlink(".", name)
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os.unlink(name)
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return True
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except (OSError, AttributeError):
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return False
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def has_hardlink():
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from mercurial import util
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fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
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os.close(fh)
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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try:
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try:
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util.oslink(fn, name)
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os.unlink(name)
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return True
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except OSError:
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return False
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finally:
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os.unlink(fn)
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def has_tla():
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return matchoutput('tla --version 2>&1', r'The GNU Arch Revision')
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def has_gpg():
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return matchoutput('gpg --version 2>&1', r'GnuPG')
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def has_unix_permissions():
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d = tempfile.mkdtemp(dir='.', prefix=tempprefix)
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try:
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fname = os.path.join(d, 'foo')
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for umask in (077, 007, 022):
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os.umask(umask)
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f = open(fname, 'w')
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f.close()
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mode = os.stat(fname).st_mode
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os.unlink(fname)
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if mode & 0777 != ~umask & 0666:
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return False
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return True
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finally:
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os.rmdir(d)
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def has_pyflakes():
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return matchoutput("sh -c \"echo 'import re' 2>&1 | pyflakes\"",
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r"<stdin>:1: 're' imported but unused",
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True)
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def has_pygments():
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try:
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import pygments
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return True
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except ImportError:
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return False
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def has_outer_repo():
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# failing for other reasons than 'no repo' imply that there is a repo
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return not matchoutput('hg root 2>&1',
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r'abort: no repository found', True)
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def has_ssl():
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try:
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import ssl
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import OpenSSL
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OpenSSL.SSL.Context
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return True
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except ImportError:
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return False
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def has_windows():
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return os.name == 'nt'
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def has_system_sh():
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return os.name != 'nt'
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def has_serve():
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return os.name != 'nt' # gross approximation
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def has_tic():
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return matchoutput('test -x "`which tic`"', '')
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def has_msys():
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return os.getenv('MSYSTEM')
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checks = {
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"true": (lambda: True, "yak shaving"),
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"false": (lambda: False, "nail clipper"),
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"baz": (has_baz, "GNU Arch baz client"),
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"bzr": (has_bzr, "Canonical's Bazaar client"),
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"bzr114": (has_bzr114, "Canonical's Bazaar client >= 1.14"),
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"cacheable": (has_cacheable_fs, "cacheable filesystem"),
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"cvs": (has_cvs, "cvs client/server"),
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"darcs": (has_darcs, "darcs client"),
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"docutils": (has_docutils, "Docutils text processing library"),
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"eol-in-paths": (has_eol_in_paths, "end-of-lines in paths"),
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"execbit": (has_executablebit, "executable bit"),
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"fifo": (has_fifo, "named pipes"),
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"gettext": (has_gettext, "GNU Gettext (msgfmt)"),
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"git": (has_git, "git command line client"),
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"gpg": (has_gpg, "gpg client"),
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"hardlink": (has_hardlink, "hardlinks"),
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"icasefs": (has_icasefs, "case insensitive file system"),
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"inotify": (has_inotify, "inotify extension support"),
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"killdaemons": (has_killdaemons, 'killdaemons.py support'),
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"lsprof": (has_lsprof, "python lsprof module"),
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"mtn": (has_mtn, "monotone client (>= 1.0)"),
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"outer-repo": (has_outer_repo, "outer repo"),
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"p4": (has_p4, "Perforce server and client"),
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"pyflakes": (has_pyflakes, "Pyflakes python linter"),
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"pygments": (has_pygments, "Pygments source highlighting library"),
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"serve": (has_serve, "platform and python can manage 'hg serve -d'"),
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"ssl": (has_ssl, "python >= 2.6 ssl module and python OpenSSL"),
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"svn": (has_svn, "subversion client and admin tools"),
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"svn13": (has_svn13, "subversion client and admin tools >= 1.3"),
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"svn15": (has_svn15, "subversion client and admin tools >= 1.5"),
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"svn-bindings": (has_svn_bindings, "subversion python bindings"),
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"symlink": (has_symlink, "symbolic links"),
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"system-sh": (has_system_sh, "system() uses sh"),
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"tic": (has_tic, "terminfo compiler"),
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"tla": (has_tla, "GNU Arch tla client"),
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"unix-permissions": (has_unix_permissions, "unix-style permissions"),
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"windows": (has_windows, "Windows"),
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"msys": (has_msys, "Windows with MSYS"),
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}
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