95 lines
4.0 KiB
Python
Executable File
95 lines
4.0 KiB
Python
Executable File
#!/usr/bin/python
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import errno, os, os.path, re, shutil, subprocess, sys
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def main(source_dir, version):
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patch_dir = 'debian/patches'
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rt_patch_dir = 'features/all/rt'
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series_name = 'series-rt'
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old_series = set()
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new_series = set()
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try:
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with open(os.path.join(patch_dir, series_name), 'r') as series_fh:
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for line in series_fh:
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name = line.strip()
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if name != '' and name[0] != '#':
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old_series.add(name)
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except IOError, e:
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if e.errno != errno.ENOENT:
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raise
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with open(os.path.join(patch_dir, series_name), 'w') as series_fh:
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# Add directory prefix to all filenames.
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# Add Origin to all patch headers.
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def add_patch(name, source_patch, origin):
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name = os.path.join(rt_patch_dir, name)
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path = os.path.join(patch_dir, name)
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try:
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os.unlink(path)
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except OSError, e:
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if e.errno != errno.ENOENT:
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raise
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with open(path, 'w') as patch:
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in_header = True
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for line in source_patch:
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if in_header and re.match(r'^(\n|[^\w\s]|Index:)', line):
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patch.write('Origin: %s\n' % origin)
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if line != '\n':
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patch.write('\n')
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in_header = False
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patch.write(line)
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series_fh.write(name)
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series_fh.write('\n')
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new_series.add(name)
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if os.path.isdir(os.path.join(source_dir, '.git')):
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# Export rebased branch from stable-rt git as patch series
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up_ver = re.sub(r'-rt\d+$', '', version)
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args = ['git', 'format-patch', 'v%s..v%s-rebase' % (up_ver, version)]
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env = os.environ.copy()
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env['GIT_DIR'] = os.path.join(source_dir, '.git')
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child = subprocess.Popen(args,
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cwd=os.path.join(patch_dir, rt_patch_dir),
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env=env, stdout=subprocess.PIPE)
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with child.stdout as pipe:
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for line in pipe:
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name = line.strip('\n')
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with open(os.path.join(patch_dir, rt_patch_dir, name)) as \
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source_patch:
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patch_from = source_patch.readline()
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match = re.match(r'From ([0-9a-f]{40}) ', patch_from)
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assert match
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origin = 'https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=%s' % match.group(1)
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add_patch(name, source_patch, origin)
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else:
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# Copy patch series
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up_ver = re.sub(r'(\d+\.\d+)(?:\.\d+)?-rt\d+$', r'\1', version)
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origin = 'https://www.kernel.org/pub/linux/kernel/projects/rt/%s/patches-%s.tar.xz' % (up_ver, version)
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with open(os.path.join(source_dir, 'series'), 'r') as \
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source_series_fh:
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for line in source_series_fh:
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name = line.strip()
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if name != '' and name[0] != '#':
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with open(os.path.join(source_dir, name)) as source_patch:
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add_patch(name, source_patch, origin)
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else:
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# Leave comments and empty lines unchanged
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series_fh.write(line)
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for name in new_series:
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if name in old_series:
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old_series.remove(name)
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else:
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print 'Added patch', os.path.join(patch_dir, name)
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for name in old_series:
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print 'Obsoleted patch', os.path.join(patch_dir, name)
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if __name__ == '__main__':
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if len(sys.argv) != 3:
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print >>sys.stderr, 'Usage: %s DIR RT-VERSION' % sys.argv[0]
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print >>sys.stderr, 'DIR is either a git repo or quilt directory containing the given RT-VERSION.'
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sys.exit(2)
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main(sys.argv[1], sys.argv[2])
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