release_pothos_repo

#!/usr/bin/env python3

import os
import re
import sys
import datetime
import email.utils
from pothos_scripts_common import *

def main():

    #resources to write
    repoDir = os.path.abspath(sys.argv[1])
    assert(os.path.exists(repoDir))
    changelogPath = os.path.join(repoDir, 'Changelog.txt')
    debChangelogPath = os.path.join(repoDir, 'debian', 'changelog')
    debControlPath = os.path.join(repoDir, 'debian', 'control')
    debCopyrightPath = os.path.join(repoDir, 'debian', 'copyright')
    debRulesPath = os.path.join(repoDir, 'debian', 'rules')

    #extract branch, ensure up to date
    branchName = git_cmd(repoDir, 'rev-parse', '--abbrev-ref', 'HEAD').strip()

    #maintainer
    debfullname = os.environ.get('DEBFULLNAME')
    debemail = os.environ.get('DEBEMAIL')
    assert(debfullname)
    assert(debemail)

    #get a new date
    date = datetime.datetime.now()
    yyyymmdd = '%s-%0.2d-%0.2d'%(date.year, date.month, date.day)
    rfc2822 = email.utils.format_datetime(date)

    #modifications to the control
    debControlOut = list()
    for line in open(debControlPath).readlines():
        if line.startswith('Standards-Version:'):
            line = 'Standards-Version: %s\n'%get_standards_version()
        debControlOut.append(line)

    #modifications to the changelog
    changelogOut = list()
    changelogReplaced = False
    for line in open(changelogPath).readlines():
        m = re.match('^Release ([\.0-9a-z]+) \(pending\)$', line.strip())
        if m and not changelogReplaced:
            changelogReplaced = True
            line = line.replace('pending', yyyymmdd)
            changelogHeader = line.strip()
            version = m.groups()[0]
        changelogOut.append(line)
    assert(changelogReplaced)
    assert(changelogHeader)
    assert(version)

    #modifications to the copyright
    debCopyrightOut = list()
    for line in open(debCopyrightPath).readlines():
        m = re.match('Copyright \(c\) ((\d+)-(\d+)) %s <%s>'%(debfullname, debemail), line.strip())
        if m:
            line = line.replace(m.groups()[0], '%s-%d'%(m.groups()[1], date.year))
        debCopyrightOut.append(line)

    #extract deb source name
    debSource = None
    for line in open(debControlPath).readlines():
        if line.startswith('Source:'):
            debSource = line.split('Source:')[1].strip()
    debVer = version + '-1'

    #write entry into the debian changelog
    debChangelogEntry = """\
%s (%s) unstable; urgency=low

  * %s

 -- %s <%s>  %s"""%(
    debSource, debVer, changelogHeader, debfullname, debemail, rfc2822)
    debChangelogOut = debChangelogEntry + '\n\n' + open(debChangelogPath).read()

    #making a tag and pushing it
    tags = git_cmd(repoDir, 'tag', '-n').strip().splitlines()
    if not tags: raise Exception("No tags found in git tag -n")
    tag0 = tags[0]
    try:
        tag_name, tag_desc = tag0.split(' ', 1)
        tag_desc = tag_desc.strip()
        tag_prefix, tag_oldver = tag_name.rsplit('-', 1)
    except Exception as ex:
        raise Exception("Failed to parse '%s': %s"%(tag0, str(ex)))

    #known project renames for git tags
    if tag_prefix == 'pothos-gui': tag_prefix = 'pothos-flow'
    if tag_prefix == 'pothos-sdr': tag_prefix = 'pothos-soapy'

    print('Commit summary:')
    print('  branch=%s'%branchName)
    print('  version=%s'%version)
    commitMessage = '%s: changelog entry for %s'%(debSource, version)
    print('  '+commitMessage)
    print('  Maintainer %s <%s>'%(debfullname, debemail))
    print('  Date in YYYY-MM-DD = %s'%yyyymmdd)
    print('  Date in RFC-2822 = %s'%rfc2822)

    print('Tag parser summary:')
    print('  tag_prefix=%s'%tag_prefix)
    print('  tag_oldver=%s'%tag_oldver)
    print('  tag_desc=%s'%tag_desc)

    print('Creating new tag:')
    newTagName = tag_prefix + '-' + version
    newTagDesc = tag_desc.replace(tag_oldver, version)
    print('  newTagName=%s'%newTagName)
    print('  newTagDesc=%s'%newTagDesc)

    input("Press Enter to continue...")

    #pull before making any changes
    git_cmd(repoDir, 'pull', 'origin', branchName)

    #ensure rules is executable
    os.system('chmod +x %s'%debRulesPath)

    #write the new files result
    open(changelogPath, 'w').write(''.join(changelogOut))
    open(debControlPath, 'w').write(''.join(debControlOut))
    open(debChangelogPath, 'w').write(debChangelogOut)
    open(debCopyrightPath, 'w').write(''.join(debCopyrightOut))

    #make the commit, make the tag
    git_cmd(repoDir, 'commit', '-a', '-m', commitMessage)
    git_cmd(repoDir, 'tag', '-a', newTagName, '-m', newTagDesc)

    #push the branch, push the tag
    git_cmd(repoDir, 'push', 'origin', branchName)
    git_cmd(repoDir, 'push', 'origin', newTagName)

if __name__ == '__main__': main()