view tests/hghave @ 9021:2ccb527c7b1a

gendoc: fix localization of help topic

When a topic provides a callable method for its text, most likely
this text will be generated from different parts, so it does not
make sense to apply gettext on the whole result, rather the method
should provide translation by itself.

This is the case with the extensions topic, which triggers a double
gettext call, making the ASCII codec fail when it encounters 8 bit
characters, and prevents the documentation from being built.

#!/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()
    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__ != None
    except ImportError:
        return False

def has_bzr114():
    try:
        import bzrlib
        return (bzrlib.__doc__ != 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)

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_p4():
    return matchoutput('p4 -V', r'Rev\. P4/') and matchoutput('p4d -V', r'Rev\. P4D/')

def has_symlink():
    return hasattr(os, "symlink")

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(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"),
    "bzr114": (has_bzr114, "Canonical's Bazaar client >= 1.14"),
    "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"),
    "gpg": (has_gpg, "gpg 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"),
    "p4": (has_p4, "Perforce server and client"),
    "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

def test_features():
    failed = 0
    for name, feature in checks.iteritems():
        check, _ = feature
        try:
            check()
        except Exception, e:
            print "feature %s failed:  %s" % (name, e)
            failed += 1
    return failed

parser = optparse.OptionParser("%prog [options] [features]")
parser.add_option("--test-features", action="store_true",
                  help="test available 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)

    if options.test_features:
        sys.exit(test_features())

    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]
        try:
            available = check()
        except Exception, e:
            error('hghave check failed: ' + feature)
            continue

        if not negate and not available:
            error('skipped: missing feature: ' + desc)
        elif negate and available:
            error('skipped: system supports %s' % desc)

    if failures != 0:
        sys.exit(1)