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Diffstat (limited to 'versioneer.py')
| -rw-r--r-- | versioneer.py | 656 |
1 files changed, 656 insertions, 0 deletions
diff --git a/versioneer.py b/versioneer.py new file mode 100644 index 00000000..57d99419 --- /dev/null +++ b/versioneer.py @@ -0,0 +1,656 @@ +#! /usr/bin/python + +"""versioneer.py + +(like a rocketeer, but for versions) + +* https://github.com/warner/python-versioneer +* Brian Warner +* License: Public Domain +* Version: 0.7+ + +This file helps distutils-based projects manage their version number by just +creating version-control tags. + +For developers who work from a VCS-generated tree (e.g. 'git clone' etc), +each 'setup.py version', 'setup.py build', 'setup.py sdist' will compute a +version number by asking your version-control tool about the current +checkout. The version number will be written into a generated _version.py +file of your choosing, where it can be included by your __init__.py + +For users who work from a VCS-generated tarball (e.g. 'git archive'), it will +compute a version number by looking at the name of the directory created when +te tarball is unpacked. This conventionally includes both the name of the +project and a version number. + +For users who work from a tarball built by 'setup.py sdist', it will get a +version number from a previously-generated _version.py file. + +As a result, loading code directly from the source tree will not result in a +real version. If you want real versions from VCS trees (where you frequently +update from the upstream repository, or do new development), you will need to +do a 'setup.py version' after each update, and load code from the build/ +directory. + +You need to provide this code with a few configuration values: + + versionfile_source: + A project-relative pathname into which the generated version strings + should be written. This is usually a _version.py next to your project's + main __init__.py file. If your project uses src/myproject/__init__.py, + this should be 'src/myproject/_version.py'. This file should be checked + in to your VCS as usual: the copy created below by 'setup.py + update_files' will include code that parses expanded VCS keywords in + generated tarballs. The 'build' and 'sdist' commands will replace it with + a copy that has just the calculated version string. + + versionfile_build: + Like versionfile_source, but relative to the build directory instead of + the source directory. These will differ when your setup.py uses + 'package_dir='. If you have package_dir={'myproject': 'src/myproject'}, + then you will probably have versionfile_build='myproject/_version.py' and + versionfile_source='src/myproject/_version.py'. + + tag_prefix: a string, like 'PROJECTNAME-', which appears at the start of all + VCS tags. If your tags look like 'myproject-1.2.0', then you + should use tag_prefix='myproject-'. If you use unprefixed tags + like '1.2.0', this should be an empty string. + + parentdir_prefix: a string, frequently the same as tag_prefix, which + appears at the start of all unpacked tarball filenames. If + your tarball unpacks into 'myproject-1.2.0', this should + be 'myproject-'. + +To use it: + + 1: include this file in the top level of your project + 2: make the following changes to the top of your setup.py: + import versioneer + versioneer.versionfile_source = 'src/myproject/_version.py' + versioneer.versionfile_build = 'myproject/_version.py' + versioneer.tag_prefix = '' # tags are like 1.2.0 + versioneer.parentdir_prefix = 'myproject-' # dirname like 'myproject-1.2.0' + 3: add the following arguments to the setup() call in your setup.py: + version=versioneer.get_version(), + cmdclass=versioneer.get_cmdclass(), + 4: run 'setup.py update_files', which will create _version.py, and will + append the following to your __init__.py: + from _version import __version__ + 5: modify your MANIFEST.in to include versioneer.py + 6: add both versioneer.py and the generated _version.py to your VCS +""" + +import os, sys, re +from distutils.core import Command +from distutils.command.sdist import sdist as _sdist +from distutils.command.build import build as _build + +versionfile_source = None +versionfile_build = None +tag_prefix = None +parentdir_prefix = None + +VCS = "git" +IN_LONG_VERSION_PY = False + + +LONG_VERSION_PY = ''' +IN_LONG_VERSION_PY = True +# This file helps to compute a version number in source trees obtained from +# git-archive tarball (such as those provided by githubs download-from-tag +# feature). Distribution tarballs (build by setup.py sdist) and build +# directories (produced by setup.py build) will contain a much shorter file +# that just contains the computed version number. + +# This file is released into the public domain. Generated by +# versioneer-0.7+ (https://github.com/warner/python-versioneer) + +# these strings will be replaced by git during git-archive +git_refnames = "%(DOLLAR)sFormat:%%d%(DOLLAR)s" +git_full = "%(DOLLAR)sFormat:%%H%(DOLLAR)s" + + +import subprocess +import sys + +def run_command(args, cwd=None, verbose=False): + try: + # remember shell=False, so use git.cmd on windows, not just git + p = subprocess.Popen(args, stdout=subprocess.PIPE, cwd=cwd) + except EnvironmentError: + e = sys.exc_info()[1] + if verbose: + print("unable to run %%s" %% args[0]) + print(e) + return None + stdout = p.communicate()[0].strip() + if sys.version >= '3': + stdout = stdout.decode() + if p.returncode != 0: + if verbose: + print("unable to run %%s (error)" %% args[0]) + return None + return stdout + + +import sys +import re +import os.path + +def get_expanded_variables(versionfile_source): + # the code embedded in _version.py can just fetch the value of these + # variables. When used from setup.py, we don't want to import + # _version.py, so we do it with a regexp instead. This function is not + # used from _version.py. + variables = {} + try: + for line in open(versionfile_source,"r").readlines(): + if line.strip().startswith("git_refnames ="): + mo = re.search(r'=\s*"(.*)"', line) + if mo: + variables["refnames"] = mo.group(1) + if line.strip().startswith("git_full ="): + mo = re.search(r'=\s*"(.*)"', line) + if mo: + variables["full"] = mo.group(1) + except EnvironmentError: + pass + return variables + +def versions_from_expanded_variables(variables, tag_prefix, verbose=False): + refnames = variables["refnames"].strip() + if refnames.startswith("$Format"): + if verbose: + print("variables are unexpanded, not using") + return {} # unexpanded, so not in an unpacked git-archive tarball + refs = set([r.strip() for r in refnames.strip("()").split(",")]) + for ref in list(refs): + if not re.search(r'\d', ref): + if verbose: + print("discarding '%%s', no digits" %% ref) + refs.discard(ref) + # Assume all version tags have a digit. git's %%d expansion + # behaves like git log --decorate=short and strips out the + # refs/heads/ and refs/tags/ prefixes that would let us + # distinguish between branches and tags. By ignoring refnames + # without digits, we filter out many common branch names like + # "release" and "stabilization", as well as "HEAD" and "master". + if verbose: + print("remaining refs: %%s" %% ",".join(sorted(refs))) + for ref in sorted(refs): + # sorting will prefer e.g. "2.0" over "2.0rc1" + if ref.startswith(tag_prefix): + r = ref[len(tag_prefix):] + if verbose: + print("picking %%s" %% r) + return { "version": r, + "full": variables["full"].strip() } + # no suitable tags, so we use the full revision id + if verbose: + print("no suitable tags, using full revision id") + return { "version": variables["full"].strip(), + "full": variables["full"].strip() } + +def versions_from_vcs(tag_prefix, versionfile_source, verbose=False): + # this runs 'git' from the root of the source tree. That either means + # someone ran a setup.py command (and this code is in versioneer.py, so + # IN_LONG_VERSION_PY=False, thus the containing directory is the root of + # the source tree), or someone ran a project-specific entry point (and + # this code is in _version.py, so IN_LONG_VERSION_PY=True, thus the + # containing directory is somewhere deeper in the source tree). This only + # gets called if the git-archive 'subst' variables were *not* expanded, + # and _version.py hasn't already been rewritten with a short version + # string, meaning we're inside a checked out source tree. + + try: + here = os.path.abspath(__file__) + except NameError: + # some py2exe/bbfreeze/non-CPython implementations don't do __file__ + return {} # not always correct + + # versionfile_source is the relative path from the top of the source tree + # (where the .git directory might live) to this file. Invert this to find + # the root from __file__. + root = here + if IN_LONG_VERSION_PY: + for i in range(len(versionfile_source.split("/"))): + root = os.path.dirname(root) + else: + root = os.path.dirname(here) + if not os.path.exists(os.path.join(root, ".git")): + if verbose: + print("no .git in %%s" %% root) + return {} + + GIT = "git" + if sys.platform == "win32": + GIT = "git.cmd" + stdout = run_command([GIT, "describe", "--tags", "--dirty", "--always"], + cwd=root) + if stdout is None: + return {} + if not stdout.startswith(tag_prefix): + if verbose: + print("tag '%%s' doesn't start with prefix '%%s'" %% (stdout, tag_prefix)) + return {} + tag = stdout[len(tag_prefix):] + stdout = run_command([GIT, "rev-parse", "HEAD"], cwd=root) + if stdout is None: + return {} + full = stdout.strip() + if tag.endswith("-dirty"): + full += "-dirty" + return {"version": tag, "full": full} + + +def versions_from_parentdir(parentdir_prefix, versionfile_source, verbose=False): + if IN_LONG_VERSION_PY: + # We're running from _version.py. If it's from a source tree + # (execute-in-place), we can work upwards to find the root of the + # tree, and then check the parent directory for a version string. If + # it's in an installed application, there's no hope. + try: + here = os.path.abspath(__file__) + except NameError: + # py2exe/bbfreeze/non-CPython don't have __file__ + return {} # without __file__, we have no hope + # versionfile_source is the relative path from the top of the source + # tree to _version.py. Invert this to find the root from __file__. + root = here + for i in range(len(versionfile_source.split("/"))): + root = os.path.dirname(root) + else: + # we're running from versioneer.py, which means we're running from + # the setup.py in a source tree. sys.argv[0] is setup.py in the root. + here = os.path.abspath(sys.argv[0]) + root = os.path.dirname(here) + + # Source tarballs conventionally unpack into a directory that includes + # both the project name and a version string. + dirname = os.path.basename(root) + if not dirname.startswith(parentdir_prefix): + if verbose: + print("guessing rootdir is '%%s', but '%%s' doesn't start with prefix '%%s'" %% + (root, dirname, parentdir_prefix)) + return None + return {"version": dirname[len(parentdir_prefix):], "full": ""} + +tag_prefix = "%(TAG_PREFIX)s" +parentdir_prefix = "%(PARENTDIR_PREFIX)s" +versionfile_source = "%(VERSIONFILE_SOURCE)s" + +def get_versions(default={"version": "unknown", "full": ""}, verbose=False): + variables = { "refnames": git_refnames, "full": git_full } + ver = versions_from_expanded_variables(variables, tag_prefix, verbose) + if not ver: + ver = versions_from_vcs(tag_prefix, versionfile_source, verbose) + if not ver: + ver = versions_from_parentdir(parentdir_prefix, versionfile_source, + verbose) + if not ver: + ver = default + return ver + +''' + + +import subprocess +import sys + +def run_command(args, cwd=None, verbose=False): + try: + # remember shell=False, so use git.cmd on windows, not just git + p = subprocess.Popen(args, stdout=subprocess.PIPE, cwd=cwd) + except EnvironmentError: + e = sys.exc_info()[1] + if verbose: + print("unable to run %s" % args[0]) + print(e) + return None + stdout = p.communicate()[0].strip() + if sys.version >= '3': + stdout = stdout.decode() + if p.returncode != 0: + if verbose: + print("unable to run %s (error)" % args[0]) + return None + return stdout + + +import sys +import re +import os.path + +def get_expanded_variables(versionfile_source): + # the code embedded in _version.py can just fetch the value of these + # variables. When used from setup.py, we don't want to import + # _version.py, so we do it with a regexp instead. This function is not + # used from _version.py. + variables = {} + try: + for line in open(versionfile_source,"r").readlines(): + if line.strip().startswith("git_refnames ="): + mo = re.search(r'=\s*"(.*)"', line) + if mo: + variables["refnames"] = mo.group(1) + if line.strip().startswith("git_full ="): + mo = re.search(r'=\s*"(.*)"', line) + if mo: + variables["full"] = mo.group(1) + except EnvironmentError: + pass + return variables + +def versions_from_expanded_variables(variables, tag_prefix, verbose=False): + refnames = variables["refnames"].strip() + if refnames.startswith("$Format"): + if verbose: + print("variables are unexpanded, not using") + return {} # unexpanded, so not in an unpacked git-archive tarball + refs = set([r.strip() for r in refnames.strip("()").split(",")]) + for ref in list(refs): + if not re.search(r'\d', ref): + if verbose: + print("discarding '%s', no digits" % ref) + refs.discard(ref) + # Assume all version tags have a digit. git's %d expansion + # behaves like git log --decorate=short and strips out the + # refs/heads/ and refs/tags/ prefixes that would let us + # distinguish between branches and tags. By ignoring refnames + # without digits, we filter out many common branch names like + # "release" and "stabilization", as well as "HEAD" and "master". + if verbose: + print("remaining refs: %s" % ",".join(sorted(refs))) + for ref in sorted(refs): + # sorting will prefer e.g. "2.0" over "2.0rc1" + if ref.startswith(tag_prefix): + r = ref[len(tag_prefix):] + if verbose: + print("picking %s" % r) + return { "version": r, + "full": variables["full"].strip() } + # no suitable tags, so we use the full revision id + if verbose: + print("no suitable tags, using full revision id") + return { "version": variables["full"].strip(), + "full": variables["full"].strip() } + +def versions_from_vcs(tag_prefix, versionfile_source, verbose=False): + # this runs 'git' from the root of the source tree. That either means + # someone ran a setup.py command (and this code is in versioneer.py, so + # IN_LONG_VERSION_PY=False, thus the containing directory is the root of + # the source tree), or someone ran a project-specific entry point (and + # this code is in _version.py, so IN_LONG_VERSION_PY=True, thus the + # containing directory is somewhere deeper in the source tree). This only + # gets called if the git-archive 'subst' variables were *not* expanded, + # and _version.py hasn't already been rewritten with a short version + # string, meaning we're inside a checked out source tree. + + try: + here = os.path.abspath(__file__) + except NameError: + # some py2exe/bbfreeze/non-CPython implementations don't do __file__ + return {} # not always correct + + # versionfile_source is the relative path from the top of the source tree + # (where the .git directory might live) to this file. Invert this to find + # the root from __file__. + root = here + if IN_LONG_VERSION_PY: + for i in range(len(versionfile_source.split("/"))): + root = os.path.dirname(root) + else: + root = os.path.dirname(here) + if not os.path.exists(os.path.join(root, ".git")): + if verbose: + print("no .git in %s" % root) + return {} + + GIT = "git" + if sys.platform == "win32": + GIT = "git.cmd" + stdout = run_command([GIT, "describe", "--tags", "--dirty", "--always"], + cwd=root) + if stdout is None: + return {} + if not stdout.startswith(tag_prefix): + if verbose: + print("tag '%s' doesn't start with prefix '%s'" % (stdout, tag_prefix)) + return {} + tag = stdout[len(tag_prefix):] + stdout = run_command([GIT, "rev-parse", "HEAD"], cwd=root) + if stdout is None: + return {} + full = stdout.strip() + if tag.endswith("-dirty"): + full += "-dirty" + return {"version": tag, "full": full} + + +def versions_from_parentdir(parentdir_prefix, versionfile_source, verbose=False): + if IN_LONG_VERSION_PY: + # We're running from _version.py. If it's from a source tree + # (execute-in-place), we can work upwards to find the root of the + # tree, and then check the parent directory for a version string. If + # it's in an installed application, there's no hope. + try: + here = os.path.abspath(__file__) + except NameError: + # py2exe/bbfreeze/non-CPython don't have __file__ + return {} # without __file__, we have no hope + # versionfile_source is the relative path from the top of the source + # tree to _version.py. Invert this to find the root from __file__. + root = here + for i in range(len(versionfile_source.split("/"))): + root = os.path.dirname(root) + else: + # we're running from versioneer.py, which means we're running from + # the setup.py in a source tree. sys.argv[0] is setup.py in the root. + here = os.path.abspath(sys.argv[0]) + root = os.path.dirname(here) + + # Source tarballs conventionally unpack into a directory that includes + # both the project name and a version string. + dirname = os.path.basename(root) + if not dirname.startswith(parentdir_prefix): + if verbose: + print("guessing rootdir is '%s', but '%s' doesn't start with prefix '%s'" % + (root, dirname, parentdir_prefix)) + return None + return {"version": dirname[len(parentdir_prefix):], "full": ""} + +import sys + +def do_vcs_install(versionfile_source, ipy): + GIT = "git" + if sys.platform == "win32": + GIT = "git.cmd" + run_command([GIT, "add", "versioneer.py"]) + run_command([GIT, "add", versionfile_source]) + run_command([GIT, "add", ipy]) + present = False + try: + f = open(".gitattributes", "r") + for line in f.readlines(): + if line.strip().startswith(versionfile_source): + if "export-subst" in line.strip().split()[1:]: + present = True + f.close() + except EnvironmentError: + pass + if not present: + f = open(".gitattributes", "a+") + f.write("%s export-subst\n" % versionfile_source) + f.close() + run_command([GIT, "add", ".gitattributes"]) + + +SHORT_VERSION_PY = """ +# This file was generated by 'versioneer.py' (0.7+) from +# revision-control system data, or from the parent directory name of an +# unpacked source archive. Distribution tarballs contain a pre-generated copy +# of this file. + +version_version = '%(version)s' +version_full = '%(full)s' +def get_versions(default={}, verbose=False): + return {'version': version_version, 'full': version_full} + +""" + +DEFAULT = {"version": "unknown", "full": "unknown"} + +def versions_from_file(filename): + versions = {} + try: + f = open(filename) + except EnvironmentError: + return versions + for line in f.readlines(): + mo = re.match("version_version = '([^']+)'", line) + if mo: + versions["version"] = mo.group(1) + mo = re.match("version_full = '([^']+)'", line) + if mo: + versions["full"] = mo.group(1) + return versions + +def write_to_version_file(filename, versions): + f = open(filename, "w") + f.write(SHORT_VERSION_PY % versions) + f.close() + print("set %s to '%s'" % (filename, versions["version"])) + + +def get_best_versions(versionfile, tag_prefix, parentdir_prefix, + default=DEFAULT, verbose=False): + # returns dict with two keys: 'version' and 'full' + # + # extract version from first of _version.py, 'git describe', parentdir. + # This is meant to work for developers using a source checkout, for users + # of a tarball created by 'setup.py sdist', and for users of a + # tarball/zipball created by 'git archive' or github's download-from-tag + # feature. + + variables = get_expanded_variables(versionfile_source) + if variables: + ver = versions_from_expanded_variables(variables, tag_prefix) + if ver: + if verbose: print("got version from expanded variable %s" % ver) + return ver + + ver = versions_from_file(versionfile) + if ver: + if verbose: print("got version from file %s %s" % (versionfile, ver)) + return ver + + ver = versions_from_vcs(tag_prefix, versionfile_source, verbose) + if ver: + if verbose: print("got version from git %s" % ver) + return ver + + ver = versions_from_parentdir(parentdir_prefix, versionfile_source, verbose) + if ver: + if verbose: print("got version from parentdir %s" % ver) + return ver + + if verbose: print("got version from default %s" % ver) + return default + +def get_versions(default=DEFAULT, verbose=False): + assert versionfile_source is not None, "please set versioneer.versionfile_source" + assert tag_prefix is not None, "please set versioneer.tag_prefix" + assert parentdir_prefix is not None, "please set versioneer.parentdir_prefix" + return get_best_versions(versionfile_source, tag_prefix, parentdir_prefix, + default=default, verbose=verbose) +def get_version(verbose=False): + return get_versions(verbose=verbose)["version"] + +class cmd_version(Command): + description = "report generated version string" + user_options = [] + boolean_options = [] + def initialize_options(self): + pass + def finalize_options(self): + pass + def run(self): + ver = get_version(verbose=True) + print("Version is currently: %s" % ver) + + +class cmd_build(_build): + def run(self): + versions = get_versions(verbose=True) + _build.run(self) + # now locate _version.py in the new build/ directory and replace it + # with an updated value + target_versionfile = os.path.join(self.build_lib, versionfile_build) + print("UPDATING %s" % target_versionfile) + os.unlink(target_versionfile) + f = open(target_versionfile, "w") + f.write(SHORT_VERSION_PY % versions) + f.close() + +class cmd_sdist(_sdist): + def run(self): + versions = get_versions(verbose=True) + self._versioneer_generated_versions = versions + # unless we update this, the command will keep using the old version + self.distribution.metadata.version = versions["version"] + return _sdist.run(self) + + def make_release_tree(self, base_dir, files): + _sdist.make_release_tree(self, base_dir, files) + # now locate _version.py in the new base_dir directory (remembering + # that it may be a hardlink) and replace it with an updated value + target_versionfile = os.path.join(base_dir, versionfile_source) + print("UPDATING %s" % target_versionfile) + os.unlink(target_versionfile) + f = open(target_versionfile, "w") + f.write(SHORT_VERSION_PY % self._versioneer_generated_versions) + f.close() + +INIT_PY_SNIPPET = """ +from ._version import get_versions +__version__ = get_versions()['version'] +del get_versions +""" + +class cmd_update_files(Command): + description = "modify __init__.py and create _version.py" + user_options = [] + boolean_options = [] + def initialize_options(self): + pass + def finalize_options(self): + pass + def run(self): + ipy = os.path.join(os.path.dirname(versionfile_source), "__init__.py") + print(" creating %s" % versionfile_source) + f = open(versionfile_source, "w") + f.write(LONG_VERSION_PY % {"DOLLAR": "$", + "TAG_PREFIX": tag_prefix, + "PARENTDIR_PREFIX": parentdir_prefix, + "VERSIONFILE_SOURCE": versionfile_source, + }) + f.close() + try: + old = open(ipy, "r").read() + except EnvironmentError: + old = "" + if INIT_PY_SNIPPET not in old: + print(" appending to %s" % ipy) + f = open(ipy, "a") + f.write(INIT_PY_SNIPPET) + f.close() + else: + print(" %s unmodified" % ipy) + do_vcs_install(versionfile_source, ipy) + +def get_cmdclass(): + return {'version': cmd_version, + 'update_files': cmd_update_files, + 'build': cmd_build, + 'sdist': cmd_sdist, + } |