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from __future__ import print_function
import datetime
import warnings
import re
from .utils import trace
from pkg_resources import iter_entry_points
from distutils import log
from pkg_resources import parse_version
def _get_version_class():
modern_version = parse_version("1.0")
if isinstance(modern_version, tuple):
return None
else:
return type(modern_version)
VERSION_CLASS = _get_version_class()
def _warn_if_setuptools_outdated():
if VERSION_CLASS is None:
log.warn("your setuptools is too old (<12)")
log.warn("setuptools_scm functionality is degraded")
def callable_or_entrypoint(group, callable_or_name):
trace('ep', (group, callable_or_name))
if callable(callable_or_name):
return callable_or_name
for ep in iter_entry_points(group, callable_or_name):
trace("ep found:", ep.name)
return ep.load()
def tag_to_version(tag):
trace('tag', tag)
if '+' in tag:
warnings.warn("tag %r will be stripped of the local component" % tag)
tag = tag.split('+')[0]
# lstrip the v because of py2/py3 differences in setuptools
# also required for old versions of setuptools
version = tag.rsplit('-', 1)[-1].lstrip('v')
if parse_version is None:
return version
version = parse_version(version)
trace('version', repr(version))
if isinstance(version, VERSION_CLASS):
return version
def tags_to_versions(tags):
versions = map(tag_to_version, tags)
return [v for v in versions if v is not None]
class ScmVersion(object):
def __init__(self, tag_version,
distance=None, node=None, dirty=False,
preformatted=False,
**kw):
if kw:
trace("unknown args", kw)
self.tag = tag_version
if dirty and distance is None:
distance = 0
self.distance = distance
self.node = node
self.time = datetime.datetime.now()
self.extra = kw
self.dirty = dirty
self.preformatted = preformatted
@property
def exact(self):
return self.distance is None
def __repr__(self):
return self.format_with(
'<ScmVersion {tag} d={distance}'
' n={node} d={dirty} x={extra}>')
def format_with(self, fmt):
return fmt.format(
time=self.time,
tag=self.tag, distance=self.distance,
node=self.node, dirty=self.dirty, extra=self.extra)
def format_choice(self, clean_format, dirty_format):
return self.format_with(dirty_format if self.dirty else clean_format)
def _parse_tag(tag, preformatted):
if preformatted:
return tag
if VERSION_CLASS is None or not isinstance(tag, VERSION_CLASS):
tag = tag_to_version(tag)
return tag
def meta(tag, distance=None, dirty=False, node=None, preformatted=False, **kw):
tag = _parse_tag(tag, preformatted)
trace('version', tag)
assert tag is not None, 'cant parse version %s' % tag
return ScmVersion(tag, distance, node, dirty, preformatted, **kw)
def guess_next_version(tag_version, distance):
version = _strip_local(str(tag_version))
bumped = _bump_dev(version) or _bump_regex(version)
suffix = '.dev%s' % distance
return bumped + suffix
def _strip_local(version_string):
public, sep, local = version_string.partition('+')
return public
def _bump_dev(version):
if '.dev' not in version:
return
prefix, tail = version.rsplit('.dev', 1)
assert tail == '0', 'own dev numbers are unsupported'
return prefix
def _bump_regex(version):
prefix, tail = re.match('(.*?)(\d+)$', version).groups()
return '%s%d' % (prefix, int(tail) + 1)
def guess_next_dev_version(version):
if version.exact:
return version.format_with("{tag}")
else:
return guess_next_version(version.tag, version.distance)
def get_local_node_and_date(version):
if version.exact or version.node is None:
return version.format_choice("", "+d{time:%Y%m%d}")
else:
return version.format_choice("+{node}", "+{node}.d{time:%Y%m%d}")
def get_local_node_and_timestamp(version, fmt='%Y%m%d%H%M%S'):
if version.exact or version.node is None:
return version.format_choice("",
"+d{time:"
+ "{fmt}".format(fmt=fmt)
+ "}")
else:
return version.format_choice("+{node}",
"+{node}"
+ ".d{time:"
+ "{fmt}".format(fmt=fmt)
+ "}")
def get_local_dirty_tag(version):
return version.format_choice('', '+dirty')
def postrelease_version(version):
if version.exact:
return version.format_with('{tag}')
else:
return version.format_with('{tag}.post{distance}')
def format_version(version, **config):
trace('scm version', version)
trace('config', config)
if version.preformatted:
return version.tag
version_scheme = callable_or_entrypoint(
'setuptools_scm.version_scheme', config['version_scheme'])
local_scheme = callable_or_entrypoint(
'setuptools_scm.local_scheme', config['local_scheme'])
main_version = version_scheme(version)
trace('version', main_version)
local_version = local_scheme(version)
trace('local_version', local_version)
return version_scheme(version) + local_scheme(version)
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