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# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import subprocess
import zmake.util as util
def _get_num_commits(repo):
"""Get the number of commits that have been made in a Git repository.
Args:
repo: The path to the git repo.
Returns:
An integer, the number of commits that have been made.
"""
result = subprocess.run(['git', '-C', repo, 'rev-list', 'HEAD', '--count'],
check=True, stdout=subprocess.PIPE,
encoding='utf-8')
return int(result.stdout)
def _get_revision(repo):
"""Get the index's current revision of a Git repo.
Args:
repo: The path to the git repo.
Returns:
A string, of the current revision.
"""
result = subprocess.run(['git', '-C', repo, 'log', '-n1', '--format=%H'],
check=True, stdout=subprocess.PIPE,
encoding='utf-8')
return result.stdout
def get_version_string(project, zephyr_base, modules, static=False):
"""Get the version string associated with a build.
Args:
project: a zmake.project.Project object
zephyr_base: the path to the zephyr directory
modules: a dictionary mapping module names to module paths
static: if set, create a version string not dependent on git
commits, thus allowing binaries to be compared between two
commits.
Returns:
A version string which can be placed in FRID, FWID, or used in
the build for the OS.
"""
major_version, minor_version, *_ = util.read_zephyr_version(zephyr_base)
project_id = project.project_dir.parts[-1]
num_commits = 0
if static:
vcs_hashes = 'STATIC'
else:
repos = {
'os': zephyr_base,
**modules,
}
for repo in repos.values():
num_commits += _get_num_commits(repo)
vcs_hashes = ','.join(
'{}:{}'.format(name, _get_revision(repo)[:6])
for name, repo in sorted(repos.items()))
return '{}_v{}.{}.{}-{}'.format(
project_id, major_version, minor_version, num_commits, vcs_hashes)
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