mirror of
https://github.com/tahoe-lafs/tahoe-lafs.git
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133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
#! /usr/bin/env python
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"""
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Create _version.py, based upon the latest darcs release tag.
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If your source tree is coming from darcs (i.e. it is in a darcs repository),
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this tool will determine the most recent release tag, count the patches that
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have been applied since then, and compute a version number to be written into
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_version.py . This version number will be available by doing:
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from your_package_name import __version__
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Source trees that do not come from darcs (e.g. release tarballs, nightly
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tarballs) and are not within a darcs repository should instead, come with a
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_version.py that was generated before the tarball was produced. In this case,
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this script will quietly exit without modifying the existing _version.py .
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'release tags' are tags in the source repository that match the following
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regexp:
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^your_package_name-\d+\.\d+(\.\d+)?((a|b|c)(\d+)?)?\w*$
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"""
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import os, sys, re
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import xml.dom.minidom
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from subprocess import Popen, PIPE
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try:
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# If we can import allmydata.util.version_class then use its regex.
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from allmydata.util import version_class
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VERSION_BASE_RE_STR = version_class.VERSION_BASE_RE_STR
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except ImportError:
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# Else (perhaps a bootstrapping problem),then we'll use this
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# regex, which was copied from the pyutil source code on
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# 2007-08-11.
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VERSION_BASE_RE_STR="(\d+)\.(\d+)(\.(\d+))?((a|b|c)(\d+))?"
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def get_text(nodelist):
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rc = ""
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for node in nodelist:
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if node.nodeType == node.TEXT_NODE:
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rc = rc + node.data
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return rc
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VERSION_BODY = '''
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from allmydata.util.version_class import Version
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# This is the version of this tree, as created by scripts/make-version.py from
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# the Darcs patch information: the main version number is taken from the most
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# recent release tag. If some patches have been added since the last release,
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# this will have a -NN "build number" suffix. Please see
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# allmydata.util.version_class for a description of what the different fields
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# mean.
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verstr = "%s"
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__version__ = Version(verstr)
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'''
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def write_version_py(verstr, outfname):
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f = open(outfname, "wt+")
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f.write(VERSION_BODY % (verstr,))
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f.close()
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def update(pkgname, verfilename):
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rc = -1
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cmd = ["darcs", "changes", "--from-tag=^%s" % (pkgname,), "--xml-output"]
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try:
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p = Popen(cmd, stdout=PIPE)
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except:
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pass
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else:
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output = p.communicate()[0]
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rc = p.returncode
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if rc != 0:
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cmd = ["realdarcs.exe", "changes", "--from-tag=^%s" % (pkgname,), "--xml-output"]
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p = Popen(cmd, stdout=PIPE)
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output = p.communicate()[0]
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rc = p.returncode
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if rc != 0:
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if os.path.exists(verfilename):
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print "Failure from attempt to find version tags with 'darcs changes', and %s already exists, so leaving it alone." % (verfilename,)
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return 0
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else:
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print "Failure from attempt to find version tags with 'darcs changes', and %s doesn't exist." % (verfilename,)
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return rc
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doc = xml.dom.minidom.parseString(output)
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changelog = doc.getElementsByTagName("changelog")[0]
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patches = changelog.getElementsByTagName("patch")
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count = 0
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regexstr = "^TAG %s-(%s)" % (pkgname, VERSION_BASE_RE_STR,)
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version_re = re.compile(regexstr)
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for patch in patches:
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name = get_text(patch.getElementsByTagName("name")[0].childNodes)
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m = version_re.match(name)
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if m:
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last_tag = m.group(1)
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last_tag = last_tag.encode("ascii")
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break
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count += 1
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else:
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print "I'm unable to find a tag in the darcs history matching \"%s\", so I'm leaving %s alone." % (regexstr, verfilename,)
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return 0
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if count:
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# this is an interim version
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verstr = "%s-%d" % (last_tag, count)
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else:
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# this is a release
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verstr = last_tag
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write_version_py(verstr, verfilename)
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print "wrote '%s' into %s" % (verstr, verfilename,)
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return 0
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if __name__ == '__main__':
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if len(sys.argv) >= 2:
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pkgname = sys.argv[1]
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else:
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pkgname = os.path.basename(os.getcwd())
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print "You didn't pass a pkg-name on the command-line, so I'm going to take the name of the current working directory: \"%s\"" % (pkgname,)
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if len(sys.argv) >= 3:
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verfilename = sys.argv[2]
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else:
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verfilename = os.path.join(pkgname, "_version.py")
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print "You didn't pass a verfilename on the command-line, so I'm going to build one from the name of the package: \"%s\"" % (verfilename,)
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rc = update(pkgname=pkgname, verfilename=verfilename)
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sys.exit(rc)
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