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# tags.py -- Providers of upstream source - tag names
# Copyright (C) 2016-2020 Jelmer Vernooij <jelmer@debian.org>
#
# This file is part of bzr-builddeb.
#
# bzr-builddeb is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# bzr-builddeb is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with bzr-builddeb; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
from itertools import islice
from typing import Optional
from ....repository import Repository
from ....revision import Revision
from debmutate.versions import mangle_version_for_git
def possible_upstream_tag_names(
package: Optional[str], version: str, component: Optional[str] = None, try_hard=True
):
tags = []
if component is None:
# compatibility with git-buildpackage
tags.append("upstream/%s" % version)
tags.append("upstream-%s" % version)
manipulated = "upstream/%s" % mangle_version_for_git(version)
if manipulated not in tags:
tags.append(manipulated)
# compatibility with svn-buildpackage
tags.append("upstream_%s" % version)
if try_hard:
# common upstream names
tags.append("%s" % version)
tags.append("v%s" % version)
if "~" not in str(version) and "+" not in str(version):
tags.append("release-%s" % version)
tags.append("v%s-release" % version)
if package:
tags.append("{}-{}".format(package, version))
tags.append("v/%s" % version)
tags.append("v.%s" % version)
else:
tags.append("upstream-{}/{}".format(version, component))
tags.append("upstream/{}/{}".format(mangle_version_for_git(version), component))
return tags
def is_upstream_tag(tag):
"""Return true if tag is an upstream tag.
:param tag: The string name of the tag.
:return: True if the tag name is one generated by upstream tag operations.
"""
return (
tag.startswith("upstream-")
or tag.startswith("upstream/")
or tag.startswith("upstream_")
)
def upstream_tag_version(tag):
"""Return the upstream version portion of an upstream tag name.
:param tag: The string name of the tag.
:return: tuple with version portion of the tag and component name
"""
assert is_upstream_tag(tag), "Not an upstream tag: %s" % tag
if tag.startswith("upstream/"):
tag = tag[len("upstream/") :]
elif tag.startswith("upstream_"):
tag = tag[len("upstream_") :]
elif tag.startswith("upstream-"):
tag = tag[len("upstream-") :]
if tag.startswith("debian-"):
tag = tag[len("debian-") :]
elif tag.startswith("ubuntu-"):
tag = tag[len("ubuntu-") :]
tag = tag.replace("_", "~")
if "/" not in tag:
return (None, tag)
(version, component) = tag.rsplit("/", 1)
if component == "":
component = None
return (component, version)
def _rev_is_upstream_import(revision: Revision, package: Optional[str], version: str):
possible_messages = []
if package is not None:
possible_messages.extend(
[
"Import {}_{}".format(package, version),
"import {}_{}".format(package, version),
"import {}-{}".format(package.replace("-", "_"), version),
"{}-{}".format(package, version),
]
)
possible_messages.extend(
[
"Imported upstream version %s" % version,
"Import upstream version %s" % version,
"New upstream version %s" % version,
"New upstream version v%s" % version,
]
)
for possible_message in possible_messages:
if revision.message.lower().startswith(possible_message.lower()):
return True
return False
def _rev_is_upstream_merge(
revision: Revision, package: Optional[str], version: str
) -> bool:
if revision.message.lower().startswith(
("Merge tag 'v%s' into debian/" % version).lower()
):
return True
if package is not None and revision.message.lower().startswith(
("Merge tag '{}-{}' into ".format(package, version)).lower()
):
return True
return False
def upstream_version_tag_start_revids(tag_dict, package: Optional[str], version: str):
"""Find Debian tags related to a particular upstream version.
This can be used by search_for_upstream_version
"""
candidate_tag_start = [
"debian/%s-" % mangle_version_for_git(version),
"debian-%s" % version,
# Epochs are sometimes replaced by underscores, rather than by %,
# as DEP-14 suggests.
"debian/%s-" % mangle_version_for_git(version.replace(":", "_")),
# Haskell repo style
"{}_v{}".format(package, version),
]
if package:
candidate_tag_start.append("debian-{}-{}".format(package, version))
for tag_name, revid in tag_dict.items():
if any([tag_name.startswith(tag_start) for tag_start in candidate_tag_start]):
yield (tag_name, revid)
def search_for_upstream_version(
repository: Repository,
start_revids,
package: Optional[str],
version: str,
component: Optional[str] = None,
md5: Optional[str] = None,
scan_depth=None,
):
"""Find possible upstream revisions that don't have appropriate tags."""
todo = []
graph = repository.get_graph()
for revid, parents in islice(graph.iter_ancestry(start_revids), scan_depth):
todo.append(revid)
for revid, rev in repository.iter_revisions(todo):
if rev is None:
continue
if _rev_is_upstream_import(rev, package, version):
return revid
# Try again, but this time search for merge revisions
for revid, rev in repository.iter_revisions(todo):
if rev is None:
continue
if _rev_is_upstream_merge(rev, package, version):
return rev.parent_ids[1]
return None
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