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Updating versioneer & switch to PEP440 versioning

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This commit is contained in:
Gina Häußge 2015-06-29 17:27:15 +02:00
parent 5f0c89c553
commit 137db0b17c
5 changed files with 2028 additions and 844 deletions
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2
.versioneer-lookup
View file

@ -15,4 +15,4 @@ staging
fix/.*
# every other branch is a development branch and thus gets resolved to 1.3.0-dev for now
.* 1.3.0-dev 198d3450d94be1a2
.* 1.3.0 198d3450d94be1a2 pep440-pre

13
setup.cfg Normal file
View file

@ -0,0 +1,13 @@
# See the docstring in versioneer.py for instructions. Note that you must
# re-run 'versioneer.py setup' after changing this section, and commit the
# resulting files.
[versioneer]
VCS = git
style = pep440
versionfile_source = src/octoprint/_version.py
versionfile_build = octoprint/_version.py
tag_prefix =
parentdir_prefix =
lookupfile = .versioneer-lookup

8
setup.py
View file

@ -58,14 +58,6 @@ EXTRA_REQUIRES = dict(
# Dependency links for any of the aforementioned dependencies
DEPENDENCY_LINKS = []
# Versioneer configuration
versioneer.VCS = 'git'
versioneer.versionfile_source = 'src/octoprint/_version.py'
versioneer.versionfile_build = 'octoprint/_version.py'
versioneer.tag_prefix = ''
versioneer.parentdir_prefix = ''
versioneer.lookupfile = '.versioneer-lookup'
#-----------------------------------------------------------------------------------------------------------------------
# Anything below here is just command setup and general setup configuration

629
src/octoprint/_version.py
View file

@ -1,28 +1,81 @@
# 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
# feature). Distribution tarballs (built 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-0.10 (https://github.com/warner/python-versioneer)
# these strings will be replaced by git during git-archive
git_refnames = "$Format:%d$"
git_full = "$Format:%H$"
# versioneer-0.15+dev (https://github.com/warner/python-versioneer)
"""Git implementation of _version.py."""
import errno
import os
import re
import subprocess
import sys
import errno
def get_keywords():
"""Get the keywords needed to look up the version information."""
# these strings will be replaced by git during git-archive.
# setup.py/versioneer.py will grep for the variable names, so they must
# each be defined on a line of their own. _version.py will just call
# get_keywords().
git_refnames = "$Format:%d$"
git_full = "$Format:%H$"
keywords = {"refnames": git_refnames, "full": git_full}
return keywords
class VersioneerConfig:
"""Container for Versioneer configuration parameters."""
def get_config():
"""Create, populate and return the VersioneerConfig() object."""
# these strings are filled in when 'setup.py versioneer' creates
# _version.py
cfg = VersioneerConfig()
cfg.VCS = "git"
cfg.style = "pep440"
cfg.tag_prefix = ""
cfg.parentdir_prefix = ""
cfg.versionfile_source = "src/octoprint/_version.py"
cfg.lookupfile = None
cfg.verbose = False
return cfg
class NotThisMethod(Exception):
"""Exception raised if a method is not valid for the current scenario."""
LONG_VERSION_PY = {}
HANDLERS = {}
def register_vcs_handler(vcs, method): # decorator
"""Decorator to mark a method as the handler for a particular VCS."""
def decorate(f):
"""Store f in HANDLERS[vcs][method]."""
if vcs not in HANDLERS:
HANDLERS[vcs] = {}
HANDLERS[vcs][method] = f
return f
return decorate
def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False):
"""Call the given command(s)."""
assert isinstance(commands, list)
p = None
for c in commands:
try:
dispcmd = str([c] + args)
# remember shell=False, so use git.cmd on windows, not just git
p = subprocess.Popen([c] + args, cwd=cwd, stdout=subprocess.PIPE,
stderr=(subprocess.PIPE if hide_stderr
@ -33,7 +86,7 @@ def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False):
if e.errno == errno.ENOENT:
continue
if verbose:
print("unable to run %s" % args[0])
print("unable to run %s" % dispcmd)
print(e)
return None
else:
@ -41,59 +94,67 @@ def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False):
print("unable to find command, tried %s" % (commands,))
return None
stdout = p.communicate()[0].strip()
if sys.version >= '3':
if sys.version_info[0] >= 3:
stdout = stdout.decode()
if p.returncode != 0:
if verbose:
print("unable to run %s (error)" % args[0])
print("unable to run %s (error)" % dispcmd)
return None
return stdout
import sys
import re
import os.path
def versions_from_parentdir(parentdir_prefix, root, verbose):
"""Try to determine the version from the parent directory name.
def get_gits(root, verbose=False):
if not os.path.exists(os.path.join(root, ".git")):
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("no .git in %s" % root)
return None
GITS = ["git"]
if sys.platform == "win32":
GITS = ["git.cmd", "git.exe"]
return GITS
print("guessing rootdir is '%s', but '%s' doesn't start with "
"prefix '%s'" % (root, dirname, parentdir_prefix))
raise NotThisMethod("rootdir doesn't start with parentdir_prefix")
return {"version": dirname[len(parentdir_prefix):],
"full-revisionid": None,
"dirty": False, "error": None}
def get_expanded_variables(versionfile_abs):
@register_vcs_handler("git", "get_keywords")
def git_get_keywords(versionfile_abs):
"""Extract version information from the given file."""
# 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 = {}
# keywords. 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.
keywords = {}
try:
f = open(versionfile_abs,"r")
f = open(versionfile_abs, "r")
for line in f.readlines():
if line.strip().startswith("git_refnames ="):
mo = re.search(r'=\s*"(.*)"', line)
if mo:
variables["refnames"] = mo.group(1)
keywords["refnames"] = mo.group(1)
if line.strip().startswith("git_full ="):
mo = re.search(r'=\s*"(.*)"', line)
if mo:
variables["full"] = mo.group(1)
keywords["full"] = mo.group(1)
f.close()
except EnvironmentError:
pass
return variables
return keywords
def versions_from_expanded_variables(variables, tag_prefix, verbose=False):
refnames = variables["refnames"].strip()
@register_vcs_handler("git", "keywords")
def git_versions_from_keywords(keywords, tag_prefix, verbose):
"""Get version information from git keywords."""
if not keywords:
raise NotThisMethod("no keywords at all, weird")
refnames = keywords["refnames"].strip()
if refnames.startswith("$Format"):
if verbose:
print("variables are unexpanded, not using")
return {} # unexpanded, so not in an unpacked git-archive tarball
print("keywords are unexpanded, not using")
raise NotThisMethod("unexpanded keywords, not a git-archive tarball")
refs = set([r.strip() for r in refnames.strip("()").split(",")])
# starting in git-1.8.3, tags are listed as "tag: foo-1.0" instead of
# just "foo-1.0". If we see a "tag: " prefix, prefer those.
@ -110,6 +171,14 @@ def versions_from_expanded_variables(variables, tag_prefix, verbose=False):
tags = set([r for r in refs if re.search(r'\d', r)])
if verbose:
print("discarding '%s', no digits" % ",".join(refs-tags))
branches = [r for r in refs if not r.startswith(TAG) and r != "HEAD" and not r.startswith("refs/")]
if verbose:
print("likely branches: %s" % ",".join(sorted(branches)))
branch = None
if branches:
branch = branches[0]
if verbose:
print("likely tags: %s" % ",".join(sorted(tags)))
for ref in sorted(tags):
@ -118,161 +187,413 @@ def versions_from_expanded_variables(variables, tag_prefix, verbose=False):
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
result = {"version": r,
"full-revisionid": keywords["full"].strip(),
"dirty": False, "error": None
}
if branch is not None:
result["branch"] = branch
return result
# no suitable tags, so version is "0+unknown", but full hex is still there
if verbose:
print("no suitable tags, using full revision id")
return { "version": variables["full"].strip(),
"full": variables["full"].strip() }
print("no suitable tags, using unknown + full revision id")
return {"version": "0+unknown",
"full-revisionid": keywords["full"].strip(),
"dirty": False, "error": "no suitable tags"}
def versions_from_lookup(lookup, root, verbose=False):
GITS = get_gits(root, verbose=verbose)
if GITS is None:
return {}
stdout = run_command(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
cwd=root)
if stdout is None:
return {}
@register_vcs_handler("git", "pieces_from_vcs")
def git_pieces_from_vcs(tag_prefix, root, verbose, run_command=run_command):
"""Get version from 'git describe' in the root of the source tree.
current_branch = stdout.strip()
for matcher, tag, ref_commit in lookup:
if matcher.match(current_branch):
if tag is None or ref_commit is None:
return {}
stdout = run_command(GITS, ["rev-list", "%s..HEAD" % ref_commit, "--count"], cwd=root)
if stdout is None:
return {}
num_commits = stdout.strip()
stdout =run_command(GITS, ["rev-parse", "--short", "HEAD"], cwd=root)
if stdout is None:
return {}
short_hash = stdout.strip()
stdout = run_command(GITS, ["describe", "--tags", "--dirty", "--always"], cwd=root)
if stdout is None:
return {}
dirty = stdout.strip().endswith("-dirty")
stdout = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
if stdout is None:
return {}
full = stdout.strip()
version = "%s-%s-g%s" % (tag, num_commits, short_hash)
if dirty:
version += "-dirty"
full += "-dirty"
return {"version": version, "full": full, "branch": current_branch}
return {}
def versions_from_vcs(tag_prefix, root, verbose=False):
# this runs 'git' from the root of 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.
GITS = get_gits(root, verbose=verbose)
if GITS is None:
return {}
stdout = run_command(GITS, ["describe", "--tags", "--dirty", "--always"],
cwd=root)
if stdout is None:
return {}
if not stdout.startswith(tag_prefix):
This only gets called if the git-archive 'subst' keywords 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.
"""
if not os.path.exists(os.path.join(root, ".git")):
if verbose:
print("tag '%s' doesn't start with prefix '%s'" % (stdout, tag_prefix))
return {}
tag = stdout[len(tag_prefix):]
stdout = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
if stdout is None:
return {}
full = stdout.strip()
if tag.endswith("-dirty"):
full += "-dirty"
print("no .git in %s" % root)
raise NotThisMethod("no .git directory")
GITS = ["git"]
if sys.platform == "win32":
GITS = ["git.cmd", "git.exe"]
# if there is a tag matching tag_prefix, this yields TAG-NUM-gHEX[-dirty]
# if there isn't one, this yields HEX[-dirty] (no NUM)
describe_out = run_command(GITS, ["describe", "--tags", "--dirty",
"--always", "--long",
"--match", "%s*" % tag_prefix],
cwd=root)
# --long was added in git-1.5.5
if describe_out is None:
raise NotThisMethod("'git describe' failed")
describe_out = describe_out.strip()
full_out = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
if full_out is None:
raise NotThisMethod("'git rev-parse' failed")
full_out = full_out.strip()
pieces = {}
pieces["long"] = full_out
pieces["short"] = full_out[:7] # maybe improved later
pieces["error"] = None
# parse describe_out. It will be like TAG-NUM-gHEX[-dirty] or HEX[-dirty]
# TAG might have hyphens.
git_describe = describe_out
# look for -dirty suffix
dirty = git_describe.endswith("-dirty")
pieces["dirty"] = dirty
if dirty:
git_describe = git_describe[:git_describe.rindex("-dirty")]
# figure out our branch
abbrev_ref_out = run_command(GITS, ["rev-parse", "--abbrev-ref", "HEAD"], cwd=root)
if abbrev_ref_out is not None:
pieces["branch"] = abbrev_ref_out.strip()
# now we have TAG-NUM-gHEX or HEX
if "-" in git_describe:
# TAG-NUM-gHEX
mo = re.search(r'^(.+)-(\d+)-g([0-9a-f]+)$', git_describe)
if not mo:
# unparseable. Maybe git-describe is misbehaving?
pieces["error"] = ("unable to parse git-describe output: '%s'"
% describe_out)
return pieces
# tag
full_tag = mo.group(1)
if not full_tag.startswith(tag_prefix):
if verbose:
fmt = "tag '%s' doesn't start with prefix '%s'"
print(fmt % (full_tag, tag_prefix))
pieces["error"] = ("tag '%s' doesn't start with prefix '%s'"
% (full_tag, tag_prefix))
return pieces
pieces["closest-tag"] = full_tag[len(tag_prefix):]
# distance: number of commits since tag
pieces["distance"] = int(mo.group(2))
# commit: short hex revision ID
pieces["short"] = mo.group(3)
stdout = run_command(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
cwd=root)
if stdout is None:
branch = None
else:
branch = stdout.strip()
return {"version": tag, "full": full, "branch": branch}
# HEX: no tags
pieces["closest-tag"] = None
count_out = run_command(GITS, ["rev-list", "HEAD", "--count"],
cwd=root)
pieces["distance"] = int(count_out) # total number of commits
return pieces
def versions_from_parentdir(parentdir_prefix, root, verbose=False):
# 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": "", "branch": ""}
tag_prefix = ""
parentdir_prefix = ""
versionfile_source = "src/octoprint/_version.py"
lookupfile = ".versioneer-lookup"
def parse_lookup_file(root, lookup_path=None):
if not lookup_path:
lookup_path = lookupfile
if not lookup_path:
return []
path = os.path.join(root, lookup_path)
@register_vcs_handler("git", "parse_lookup_file")
def git_parse_lookup_file(path):
if not os.path.exists(path):
return []
import re
lookup = []
with open(os.path.join(root, lookup_path), "r") as f:
with open(path, "r") as f:
for line in f:
if '#' in line:
line = line[:line.rindex('#')]
line = line[:line.rindex("#")]
line = line.strip()
try:
split_line = line.split()
if len(split_line) == 3:
pattern, tag, ref_commit = split_line
lookup.append([re.compile(pattern), tag, ref_commit])
lookup.append([re.compile(pattern), tag, ref_commit, None])
elif len(split_line) == 4:
pattern, tag, ref_commit, render = split_line
lookup.append([re.compile(pattern), tag, ref_commit, render])
elif len(split_line) >= 1:
lookup.append([re.compile(split_line[0]), None, None])
lookup.append([re.compile(split_line[0]), None, None, None])
except:
break
return lookup
def get_versions(default={"version": "unknown", "full": "", "branch": "unknown"}, lookup_path=None, verbose=False):
@register_vcs_handler("git", "pieces_from_lookup")
def git_pieces_from_lookup(lookup, root, verbose, run_command=run_command):
GITS = ["git"]
if sys.platform == "win32":
GITS = ["git.cmd", "git.exe"]
stdout = run_command(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
cwd=root)
if stdout is None:
raise NotThisMethod("git rev-parse --abbrev-ref HEAD failed")
current_branch = stdout.strip()
for matcher, tag, ref_commit, render in lookup:
if matcher.match(current_branch):
if tag is None or ref_commit is None:
raise NotThisMethod("tag or ref_commit is unset for this branch")
stdout = run_command(GITS, ["rev-list", "%s..HEAD" % ref_commit, "--count"], cwd=root)
if stdout is None:
raise NotThisMethod("git rev-list %s..HEAD --count failed" % ref_commit)
try:
num_commits = int(stdout.strip())
except ValueError:
raise NotThisMethod("git rev-list %s..HEAD --count didn't return a valid number" % ref_commit)
stdout =run_command(GITS, ["rev-parse", "--short", "HEAD"], cwd=root)
if stdout is None:
raise NotThisMethod("git describe rev-parse --short HEAD failed")
short_hash = stdout.strip()
stdout = run_command(GITS, ["describe", "--tags", "--dirty", "--always"], cwd=root)
if stdout is None:
raise NotThisMethod("git describe --tags --dirty --always failed")
dirty = stdout.strip().endswith("-dirty")
stdout = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
if stdout is None:
raise NotThisMethod("git rev-parse HEAD failed")
full = stdout.strip()
return {
"long": full,
"short": short_hash,
"dirty": dirty,
"branch": current_branch,
"closest-tag": tag,
"distance": num_commits,
"error": None,
"render": render
}
raise NotThisMethod("no matching lookup definition found")
def plus_or_dot(pieces):
"""Return a + if we don't already have one, else return a ."""
if "+" in pieces.get("closest-tag", ""):
return "."
return "+"
def render_pep440(pieces):
"""Build up version string, with post-release "local version identifier".
Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you
get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty
Exceptions:
1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += plus_or_dot(pieces)
rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
if pieces["dirty"]:
rendered += ".dirty"
else:
# exception #1
rendered = "0+untagged.%d.g%s" % (pieces["distance"],
pieces["short"])
if pieces["dirty"]:
rendered += ".dirty"
return rendered
def render_pep440_pre(pieces):
"""TAG[.post.devDISTANCE] -- No -dirty.
Exceptions:
1: no tags. 0.post.devDISTANCE
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"]:
rendered += ".post.dev%d" % pieces["distance"]
else:
# exception #1
rendered = "0.post.dev%d" % pieces["distance"]
return rendered
def render_pep440_post(pieces):
"""TAG[.postDISTANCE[.dev0]+gHEX] .
The ".dev0" means dirty. Note that .dev0 sorts backwards
(a dirty tree will appear "older" than the corresponding clean one),
but you shouldn't be releasing software with -dirty anyways.
Exceptions:
1: no tags. 0.postDISTANCE[.dev0]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += ".post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
rendered += plus_or_dot(pieces)
rendered += "g%s" % pieces["short"]
else:
# exception #1
rendered = "0.post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
rendered += "+g%s" % pieces["short"]
return rendered
def render_pep440_old(pieces):
"""TAG[.postDISTANCE[.dev0]] .
The ".dev0" means dirty.
Eexceptions:
1: no tags. 0.postDISTANCE[.dev0]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += ".post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
else:
# exception #1
rendered = "0.post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
return rendered
def render_git_describe(pieces):
"""TAG[-DISTANCE-gHEX][-dirty].
Like 'git describe --tags --dirty --always'.
Exceptions:
1: no tags. HEX[-dirty] (note: no 'g' prefix)
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"]:
rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
else:
# exception #1
rendered = pieces["short"]
if pieces["dirty"]:
rendered += "-dirty"
return rendered
def render_git_describe_long(pieces):
"""TAG-DISTANCE-gHEX[-dirty].
Like 'git describe --tags --dirty --always -long'.
The distance/hash is unconditional.
Exceptions:
1: no tags. HEX[-dirty] (note: no 'g' prefix)
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
else:
# exception #1
rendered = pieces["short"]
if pieces["dirty"]:
rendered += "-dirty"
return rendered
def render(pieces, style):
"""Render the given version pieces into the requested style."""
if pieces["error"]:
return {"version": "unknown",
"full-revisionid": pieces.get("long"),
"dirty": None,
"error": pieces["error"]}
if "render" in pieces and pieces["render"] is not None:
style = pieces["render"]
if not style or style == "default":
style = "pep440" # the default
if style == "pep440":
rendered = render_pep440(pieces)
elif style == "pep440-pre":
rendered = render_pep440_pre(pieces)
elif style == "pep440-post":
rendered = render_pep440_post(pieces)
elif style == "pep440-old":
rendered = render_pep440_old(pieces)
elif style == "git-describe":
rendered = render_git_describe(pieces)
elif style == "git-describe-long":
rendered = render_git_describe_long(pieces)
else:
raise ValueError("unknown style '%s'" % style)
result = {"version": rendered, "full-revisionid": pieces["long"],
"dirty": pieces["dirty"], "error": None}
if "branch" in pieces and pieces["branch"] is not None:
result["branch"] = pieces["branch"]
return result
def get_versions():
"""Get version information or return default if unable to do so."""
# I am in _version.py, which lives at ROOT/VERSIONFILE_SOURCE. If we have
# __file__, we can work backwards from there to the root. Some
# py2exe/bbfreeze/non-CPython implementations don't do __file__, in which
# case we can only use expanded variables.
# case we can only use expanded keywords.
variables = { "refnames": git_refnames, "full": git_full }
ver = versions_from_expanded_variables(variables, tag_prefix, verbose)
if ver:
return ver
cfg = get_config()
verbose = cfg.verbose
try:
root = os.path.abspath(__file__)
return git_versions_from_keywords(get_keywords(), cfg.tag_prefix,
verbose)
except NotThisMethod:
pass
try:
root = os.path.realpath(__file__)
# 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__.
for i in range(len(versionfile_source.split("/"))):
for i in cfg.versionfile_source.split('/'):
root = os.path.dirname(root)
except NameError:
return default
return {"version": "0+unknown", "full-revisionid": None,
"dirty": None,
"error": "unable to find root of source tree"}
lookup = parse_lookup_file(root, lookup_path=lookup_path)
return (versions_from_lookup(lookup, root, verbose)
or versions_from_vcs(tag_prefix, root, verbose)
or versions_from_parentdir(parentdir_prefix, root, verbose)
or default)
lookupfile = os.path.join(root, cfg.lookupfile if cfg.lookupfile is not None else ".versioneer-lookup")
if os.path.exists(lookupfile):
try:
lookup_data = git_parse_lookup_file(lookupfile)
pieces = git_pieces_from_lookup(lookup_data, root, verbose)
return render(pieces, cfg.style)
except NotThisMethod:
pass
try:
pieces = git_pieces_from_vcs(cfg.tag_prefix, root, verbose)
return render(pieces, cfg.style)
except NotThisMethod:
pass
try:
if cfg.parentdir_prefix:
return versions_from_parentdir(cfg.parentdir_prefix, root, verbose)
except NotThisMethod:
pass
return {"version": "0+unknown", "full-revisionid": None,
"dirty": None,
"error": "unable to compute version"}

2218
versioneer.py
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