tests/hghave
author Patrick Mezard <pmezard@gmail.com>
Fri, 14 Sep 2007 23:10:41 +0200
changeset 5308 9400d677efc7
parent 5254 d61e98a82cee
parent 5302 961876838de0
child 5409 190c234c8fa0
permissions -rwxr-xr-x
Merge with crew-stable
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#!/usr/bin/env python
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"""Test the running system for features availability. Exit with zero
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if all features are there, non-zero otherwise. If a feature name is
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prefixed with "no-", the absence of feature is tested.
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"""
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import optparse
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import os
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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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    ret = fh.close()
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    return (ignorestatus or ret is None) and r.search(s)
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def has_symlink():
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    return hasattr(os, "symlink")
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def has_fifo():
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    return hasattr(os, "mkfifo")
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def has_cvs():
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    return matchoutput('cvs --version 2>&1', r'Concurrent Versions System')
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def has_cvsps():
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    return matchoutput('cvsps -h -q 2>&1', r'cvsps version', True)
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def has_executablebit():
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    fd, path = tempfile.mkstemp(prefix=tempprefix)
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    os.close(fd)
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    try:
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        s = os.lstat(path).st_mode
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        os.chmod(path, s | 0100)
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        return (os.lstat(path).st_mode & 0100 != 0)
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    finally:
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        os.remove(path)
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def has_eol_in_paths():
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    try:
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        fd, path = tempfile.mkstemp(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:
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        return False
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def has_hotshot():
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    try:
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        # hotshot.stats tests hotshot and many problematic dependencies
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        # like profile.
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        import hotshot.stats
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        return True
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    except ImportError:
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        return False
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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_git():
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    return matchoutput('git --version 2>&1', r'^git version')
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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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        return True
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    except ImportError:
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        return False
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checks = {
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    "cvs": (has_cvs, "cvs client"),
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    "cvsps": (has_cvsps, "cvsps utility"),
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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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    "git": (has_git, "git command line client"),
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    "fifo": (has_fifo, "named pipes"),
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    "hotshot": (has_hotshot, "python hotshot module"),
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    "lsprof": (has_lsprof, "python lsprof module"),
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    "svn": (has_svn, "subversion client and admin tools"),
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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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}
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def list_features():
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    for name, feature in checks.iteritems():
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        desc = feature[1]
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        print name + ':', desc
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parser = optparse.OptionParser("%prog [options] [features]")
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parser.add_option("--list-features", action="store_true",
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                  help="list available features")
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parser.add_option("-q", "--quiet", action="store_true",
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                  help="check features silently")
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if __name__ == '__main__':
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    options, args = parser.parse_args()
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    if options.list_features:
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        list_features()
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        sys.exit(0)
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    quiet = options.quiet
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    failures = 0
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    def error(msg):
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        global failures
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        if not quiet:
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            sys.stderr.write(msg + '\n')
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        failures += 1
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    for feature in args:
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        negate = feature.startswith('no-')
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        if negate:
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            feature = feature[3:]
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        if feature not in checks:
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            error('hghave: unknown feature: ' + feature)
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            continue
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        check, desc = checks[feature]
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        if not negate and not check():
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            error('hghave: missing feature: ' + desc)
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        elif negate and check():
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            error('hghave: system supports %s' % desc)
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    if failures != 0:
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        sys.exit(1)
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