136 lines
4.4 KiB
Plaintext
136 lines
4.4 KiB
Plaintext
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#!/usr/bin/python3
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import sys
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import os
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import re
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import subprocess
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from debian_linux.debian import Changelog, VersionLinux
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def base_version(ver):
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# Assume base version is at least 3.0, thus only 2 components wanted
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match = re.match(r'^(\d+\.\d+)', ver)
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assert match
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return match.group(1)
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def add_update(ver, inc):
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base = base_version(ver)
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if base == ver:
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update = 0
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else:
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update = int(ver[len(base)+1:])
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update += inc
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if update == 0:
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return base
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else:
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return '{}.{}'.format(base, update)
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def next_update(ver):
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return add_update(ver, 1)
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def print_stable_log(log, cur_ver, new_ver):
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major_ver = re.sub(r'^(\d+)\..*', r'\1', cur_ver)
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while cur_ver != new_ver:
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next_ver = next_update(cur_ver)
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print(' https://www.kernel.org/pub/linux/kernel/v{}.x/ChangeLog-{}'
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.format(major_ver, next_ver),
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file=log)
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log.flush() # serialise our output with git's
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subprocess.check_call(['git', 'log', '--reverse',
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'--pretty= - %s',
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'v{}..v{}^'.format(cur_ver, next_ver)],
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stdout=log)
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cur_ver = next_ver
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def main(repo, new_ver):
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if os.path.exists(os.path.join(repo, '.git')):
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os.environ['GIT_DIR'] = os.path.join(repo, '.git')
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else:
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os.environ['GIT_DIR'] = repo
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changelog = Changelog(version=VersionLinux)
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cur_pkg_ver = changelog[0].version
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cur_ver = cur_pkg_ver.linux_upstream_full
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if base_version(new_ver) != base_version(cur_ver):
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print('{} is not on the same stable series as {}'
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.format(new_ver, cur_ver),
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file=sys.stderr)
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sys.exit(2)
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new_pkg_ver = new_ver + '-1'
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if cur_pkg_ver.linux_revision_experimental:
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new_pkg_ver += '~exp1'
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# Three possible cases:
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# 1. The current version has been released so we need to add a new
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# version to the changelog.
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# 2. The current version has not been released so we're changing its
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# version string.
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# (a) There are no stable updates included in the current version,
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# so we need to insert an introductory line, the URL(s) and
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# git log(s) and a blank line at the top.
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# (b) One or more stable updates are already included in the current
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# version, so we need to insert the URL(s) and git log(s) after
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# them.
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changelog_intro = 'New upstream stable update:'
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# Case 1
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if changelog[0].distribution != 'UNRELEASED':
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subprocess.check_call(['dch', '-v', new_pkg_ver, '-D', 'UNRELEASED',
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changelog_intro])
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with open('debian/changelog', 'r') as old_log:
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with open('debian/changelog.new', 'w') as new_log:
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line_no = 0
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inserted = False
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intro_line = ' * {}\n'.format(changelog_intro)
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for line in old_log:
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line_no += 1
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# Case 2
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if changelog[0].distribution == 'UNRELEASED' and line_no == 1:
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print('{} ({}) UNRELEASED; urgency={}'
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.format(changelog[0].source, new_pkg_ver,
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changelog[0].urgency),
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file=new_log)
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continue
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if not inserted:
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# Case 2(a)
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if line_no == 3 and line != intro_line:
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new_log.write(intro_line)
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print_stable_log(new_log, cur_ver, new_ver)
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new_log.write('\n')
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inserted = True
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# Case 1 or 2(b)
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elif line_no > 3 and line == '\n':
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print_stable_log(new_log, cur_ver, new_ver)
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inserted = True
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# Check that we inserted before hitting the end of the
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# first version entry
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assert not (line.startswith(' -- ') and not inserted)
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new_log.write(line)
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os.rename('debian/changelog.new', 'debian/changelog')
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if __name__ == '__main__':
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if len(sys.argv) != 3:
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print('''\
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Usage: {} REPO VERSION
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REPO is the git repository to generate a changelog from
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VERSION is the stable version (without leading v)'''.format(sys.argv[0]),
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file=sys.stderr)
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sys.exit(2)
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main(*sys.argv[1:])
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