tests/hghave.py
author Mads Kiilerich <mads@kiilerich.com>
Fri, 15 Jun 2012 00:02:27 +0200
branchstable
changeset 1102 51afb47e2399
parent 1101 89f984505cbb
child 1105 9b2932ca75fd
permissions -rwxr-xr-x
tests: introduce hghave hardlinks Some tests can't be run on FAT filesystems because it doesn't support hardlinks. [ original upstream message ]
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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_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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   130
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parents:
diff changeset
   131
def has_lsprof():
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parents:
diff changeset
   132
    try:
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parents:
diff changeset
   133
        import _lsprof
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parents:
diff changeset
   134
        return True
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parents:
diff changeset
   135
    except ImportError:
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parents:
diff changeset
   136
        return False
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parents:
diff changeset
   137
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parents:
diff changeset
   138
def has_gettext():
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parents:
diff changeset
   139
    return matchoutput('msgfmt --version', 'GNU gettext-tools')
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parents:
diff changeset
   140
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parents:
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   141
def has_git():
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parents:
diff changeset
   142
    return matchoutput('git --version 2>&1', r'^git version')
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parents:
diff changeset
   143
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parents:
diff changeset
   144
def has_docutils():
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parents:
diff changeset
   145
    try:
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parents:
diff changeset
   146
        from docutils.core import publish_cmdline
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parents:
diff changeset
   147
        return True
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parents:
diff changeset
   148
    except ImportError:
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parents:
diff changeset
   149
        return False
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parents:
diff changeset
   150
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parents:
diff changeset
   151
def getsvnversion():
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parents:
diff changeset
   152
    m = matchoutput('svn --version 2>&1', r'^svn,\s+version\s+(\d+)\.(\d+)')
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parents:
diff changeset
   153
    if not m:
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   154
        return (0, 0)
4fad25af75dd Add hghave test as of 5635a4017061
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parents:
diff changeset
   155
    return (int(m.group(1)), int(m.group(2)))
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parents:
diff changeset
   156
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   157
def has_svn15():
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   158
    return getsvnversion() >= (1, 5)
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parents:
diff changeset
   159
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   160
def has_svn13():
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   161
    return getsvnversion() >= (1, 3)
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   162
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   163
def has_svn():
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   164
    return matchoutput('svn --version 2>&1', r'^svn, version') and \
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   165
        matchoutput('svnadmin --version 2>&1', r'^svnadmin, version')
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   166
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   167
def has_svn_bindings():
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   168
    try:
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   169
        import svn.core
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   170
        version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   171
        if version < (1, 4):
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   172
            return False
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   173
        return True
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   174
    except ImportError:
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   175
        return False
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   176
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   177
def has_p4():
1069
4e0cef7a70cf cleanup: eradicate long lines
Brodie Rao <brodie@sf.io>
parents: 1063
diff changeset
   178
    return (matchoutput('p4 -V', r'Rev\. P4/') and
4e0cef7a70cf cleanup: eradicate long lines
Brodie Rao <brodie@sf.io>
parents: 1063
diff changeset
   179
            matchoutput('p4d -V', r'Rev\. P4D/'))
1007
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Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   180
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   181
def has_symlink():
1071
f0ce3dcd5c87 cleanup: replace hasattr() usage with getattr() in hghave
Brodie Rao <brodie@sf.io>
parents: 1070
diff changeset
   182
    if getattr(os, "symlink", None) is None:
1055
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   183
        return False
1099
55c85631631b tests/hghave: consistently use dir='.', prefix=tempprefix for tempfiles
Mads Kiilerich <mads@kiilerich.com>
parents: 1098
diff changeset
   184
    name = tempfile.mktemp(dir='.', prefix=tempprefix)
1055
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   185
    try:
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   186
        os.symlink(".", name)
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   187
        os.unlink(name)
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   188
        return True
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   189
    except (OSError, AttributeError):
dabed2cabd5e tests: teach hghave to actually test for symlink support
Matt Mackall <mpm@selenic.com>
parents: 1032
diff changeset
   190
        return False
1007
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   191
1102
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   192
def has_hardlink():
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   193
    from mercurial import util
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   194
    fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   195
    os.close(fh)
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   196
    name = tempfile.mktemp(dir='.', prefix=tempprefix)
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   197
    try:
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   198
        try:
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   199
            util.oslink(fn, name)
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   200
            os.unlink(name)
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   201
            return True
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   202
        except OSError:
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   203
            return False
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   204
    finally:
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   205
        os.unlink(fn)
51afb47e2399 tests: introduce hghave hardlinks
Mads Kiilerich <mads@kiilerich.com>
parents: 1101
diff changeset
   206
1007
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   207
def has_tla():
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   208
    return matchoutput('tla --version 2>&1', r'The GNU Arch Revision')
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   209
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   210
def has_gpg():
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   211
    return matchoutput('gpg --version 2>&1', r'GnuPG')
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   212
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   213
def has_unix_permissions():
1099
55c85631631b tests/hghave: consistently use dir='.', prefix=tempprefix for tempfiles
Mads Kiilerich <mads@kiilerich.com>
parents: 1098
diff changeset
   214
    d = tempfile.mkdtemp(dir='.', prefix=tempprefix)
1007
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   215
    try:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   216
        fname = os.path.join(d, 'foo')
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   217
        for umask in (077, 007, 022):
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   218
            os.umask(umask)
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   219
            f = open(fname, 'w')
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   220
            f.close()
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   221
            mode = os.stat(fname).st_mode
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   222
            os.unlink(fname)
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   223
            if mode & 0777 != ~umask & 0666:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   224
                return False
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   225
        return True
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   226
    finally:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   227
        os.rmdir(d)
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   228
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   229
def has_pyflakes():
1089
f26e9129f65b hghave: wrap command in 'sh -c "..."' for has_pyflakes()
Adrian Buehlmann <adrian@cadifra.com>
parents: 1072
diff changeset
   230
    return matchoutput("sh -c \"echo 'import re' 2>&1 | pyflakes\"",
1007
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   231
                       r"<stdin>:1: 're' imported but unused",
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   232
                       True)
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   233
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   234
def has_pygments():
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   235
    try:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   236
        import pygments
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   237
        return True
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   238
    except ImportError:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   239
        return False
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   240
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   241
def has_outer_repo():
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   242
    return matchoutput('hg root 2>&1', r'')
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   243
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   244
def has_ssl():
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   245
    try:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   246
        import ssl
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   247
        import OpenSSL
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   248
        OpenSSL.SSL.Context
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   249
        return True
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   250
    except ImportError:
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   251
        return False
4fad25af75dd Add hghave test as of 5635a4017061
Christian Ebert <blacktrash@gmx.net>
parents:
diff changeset
   252
1012
018ef69bbe2f tests: use 'hghave no-windows' to avoid testing reserved file names on windows
Mads Kiilerich <mads@kiilerich.com>
parents: 1010
diff changeset
   253
def has_windows():
018ef69bbe2f tests: use 'hghave no-windows' to avoid testing reserved file names on windows
Mads Kiilerich <mads@kiilerich.com>
parents: 1010
diff changeset
   254
    return os.name == 'nt'
018ef69bbe2f tests: use 'hghave no-windows' to avoid testing reserved file names on windows
Mads Kiilerich <mads@kiilerich.com>
parents: 1010
diff changeset
   255
1013
e00f51032041 tests: use 'hghave system-sh' to guard tests that requires sh in system()
Mads Kiilerich <mads@kiilerich.com>
parents: 1012
diff changeset
   256
def has_system_sh():
e00f51032041 tests: use 'hghave system-sh' to guard tests that requires sh in system()
Mads Kiilerich <mads@kiilerich.com>
parents: 1012
diff changeset
   257
    return os.name != 'nt'
e00f51032041 tests: use 'hghave system-sh' to guard tests that requires sh in system()
Mads Kiilerich <mads@kiilerich.com>
parents: 1012
diff changeset
   258
1014
58b7f58ae08c tests: use 'hghave serve' to guard tests that requires serve daemon management
Mads Kiilerich <mads@kiilerich.com>
parents: 1013
diff changeset
   259
def has_serve():
58b7f58ae08c tests: use 'hghave serve' to guard tests that requires serve daemon management
Mads Kiilerich <mads@kiilerich.com>
parents: 1013
diff changeset
   260
    return os.name != 'nt' # gross approximation
58b7f58ae08c tests: use 'hghave serve' to guard tests that requires serve daemon management
Mads Kiilerich <mads@kiilerich.com>
parents: 1013
diff changeset
   261
1027
f8c2547c8f16 tests: skip color test on platforms without tic
Mads Kiilerich <mads@kiilerich.com>
parents: 1014
diff changeset
   262
def has_tic():
f8c2547c8f16 tests: skip color test on platforms without tic
Mads Kiilerich <mads@kiilerich.com>
parents: 1014
diff changeset
   263
    return matchoutput('test -x "`which tic`"', '')
f8c2547c8f16 tests: skip color test on platforms without tic
Mads Kiilerich <mads@kiilerich.com>
parents: 1014
diff changeset
   264
1031
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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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    "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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}