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from __future__ import print_function
import time
import py
import os
from subprocess import Popen, PIPE
import rpython
rpythondir = os.path.dirname(os.path.realpath(rpython.__file__))
rpythonroot = os.path.dirname(rpythondir)
default_retval = '?', '?'
def maywarn(err, repo_type='Mercurial'):
if not err:
return
from rpython.tool.ansi_print import AnsiLogger
log = AnsiLogger("version")
log.WARNING('Errors getting %s information: %s' % (repo_type, err))
CACHED_RESULT = None
CACHED_ARGS = None
def get_repo_version_info(hgexe=None, root=rpythonroot):
'''Obtain version information by invoking the 'hg' or 'git' commands.'''
global CACHED_RESULT, CACHED_ARGS
key = (hgexe, root)
if CACHED_RESULT is not None and CACHED_ARGS == key:
return CACHED_RESULT
res = _get_repo_version_info(hgexe, root)
CACHED_RESULT = res
CACHED_ARGS = key
return res
def _get_repo_version_info(hgexe, root):
# Debian: built from a source tarball
p = Popen(('dpkg-parsechangelog',), stdout=PIPE, cwd=rpythonroot)
if p.wait() != 0:
maywarn(p.stderr.read(), 'dpkg-parsechangelog')
return default_retval
for line in p.stdout.read().split('\n'):
if line.split(':', 1)[0].strip() == 'Version':
version = line.split(':', 1)[1].strip()
return '', version
# Try to see if we can get info from Git if hgexe is not specified.
if not hgexe:
gitfile = os.path.join(root, '.git')
if os.path.isdir(gitfile):
return _get_git_version(root)
elif os.path.exists(gitfile):
# Can be a file with a relative path like
# gitdir: ../.git/modules/pypy
with open(gitfile) as fid:
contents = fid.read()
if contents.startswith('gitdir:'):
return _get_git_version(root)
# Fallback to trying Mercurial.
if hgexe is None:
hgexe = py.path.local.sysfind('hg')
if os.path.isfile(os.path.join(root, '.hg_archival.txt')):
return _get_hg_archive_version(os.path.join(root, '.hg_archival.txt'))
elif not os.path.isdir(os.path.join(root, '.hg')):
maywarn('Not running from a Mercurial repository!')
return default_retval
elif not hgexe:
maywarn('Cannot find Mercurial command!')
return default_retval
else:
return _get_hg_version(hgexe, root)
def _get_hg_version(hgexe, root):
env = dict(os.environ)
# get Mercurial into scripting mode
env['HGPLAIN'] = '1'
# disable user configuration, extensions, etc.
env['HGRCPATH'] = os.devnull
try:
p = Popen([str(hgexe), 'version', '-q'],
stdout=PIPE, stderr=PIPE, env=env, universal_newlines=True)
except OSError as e:
maywarn(e)
return default_retval
if not p.stdout.read().startswith('Mercurial Distributed SCM'):
maywarn('command does not identify itself as Mercurial')
return default_retval
p = Popen([str(hgexe), 'id', '--template', r"{id}\n{tags}\n{branch}\n", root],
stdout=PIPE, stderr=PIPE, env=env,
universal_newlines=True)
hgout = p.stdout.read().strip()
if p.wait() != 0:
maywarn(p.stderr.read())
hgout = '?\n?\n?'
hgid, hgtags, hgbranch = hgout.strip().split("\n", 3)
hgtags = [t for t in hgtags.strip().split() if t != 'tip']
if hgtags:
return hgtags[0], hgid
else:
return hgbranch, hgid
def _get_hg_archive_version(path):
with open(path) as fp:
# reverse the order since there may be more than one tag
# and the latest tag will be first, so make it last instead
data = dict((x.split(': ', 1) for x in fp.read().splitlines()[::-1]))
if 'tag' in data:
return data['tag'], data['node']
else:
return data['branch'], data['node']
def _get_git_version(root):
#XXX: this function is a untested hack,
# so the git mirror tav made will work
gitexe = py.path.local.sysfind('git')
if not gitexe:
return default_retval
try:
p = Popen(
[str(gitexe), 'rev-parse', 'HEAD'],
stdout=PIPE, stderr=PIPE, cwd=root,
universal_newlines=True,
)
except OSError as e:
maywarn(e, 'Git')
return default_retval
if p.wait() != 0:
maywarn(p.stderr.read(), 'Git')
return default_retval
revision_id = p.stdout.read().strip()[:12]
p = Popen(
[str(gitexe), 'describe', '--tags', '--exact-match'],
stdout=PIPE, stderr=PIPE, cwd=root,
universal_newlines=True,
)
if p.wait() != 0:
p = Popen(
[str(gitexe), 'branch'], stdout=PIPE, stderr=PIPE,
cwd=root, universal_newlines=True,
)
if p.wait() != 0:
maywarn(p.stderr.read(), 'Git')
return 'pypy-HEAD', revision_id
branch = '?'
for line in p.stdout.read().strip().split('\n'):
if line.startswith('* '):
branch = line[1:].strip()
if branch == '(no branch)':
branch = 'pypy-HEAD'
if branch.startswith("(HEAD detached"):
branch = 'pypy-HEAD'
break
return branch, revision_id
return p.stdout.read().strip(), revision_id
if __name__ == '__main__':
print(get_repo_version_info())
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