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https://github.com/clearlinux/common.git
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112 lines
3.5 KiB
Python
Executable File
112 lines
3.5 KiB
Python
Executable File
#!/usr/bin/python3
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#
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# drop-abandoned-patches.py - nuke dead patches from RPM trees
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#
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# Copyright 2016-2017 Intel Corporation
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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import os
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import glob
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import subprocess
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def emit_error(er):
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""" Emit error to stderr and exit immediately """
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sys.stderr.write(er)
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sys.stderr.flush()
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sys.exit(1)
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def consume_spec(spec_file):
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""" Parse the spec file """
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sources = set()
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patches = set()
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with open(spec_file, "r", encoding="latin-1") as inp_file:
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for line in inp_file.readlines():
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line = line.replace("\r", "").replace("\n", "").strip()
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if line == "":
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continue
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splits = line.split(":")
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# Skip URL sources too
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if len(splits) != 2:
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continue
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key = splits[0].strip().lower()
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value = splits[1].strip()
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# Make #commented patches appear "used"
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if key.startswith("#"):
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key = key[1:].strip()
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if key.startswith("patch"):
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patches.add(value)
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elif key.startswith("source"):
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sources.add(value)
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return sources, patches
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def main():
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if len(sys.argv) != 2:
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emit_error("usage: {} pkg.spec".format(sys.argv[0]))
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spec_file = sys.argv[1]
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if not os.path.exists(spec_file):
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emit_error("{} doesn't exist - aborting".format(spec_file))
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if not spec_file.endswith(".spec"):
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emit_error("{} doesn't look like a valid spec file".format(spec_file))
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spec_file = os.path.abspath(spec_file)
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# All ops are relative to base_dir
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base_dir = os.path.dirname(spec_file)
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patch_files = set()
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# find all .patch & .diff files
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try:
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searches = ["*.patch", "*.nopatch", "*.diff"]
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for item in searches:
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gl = glob.glob("{}/{}".format(base_dir, item))
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patch_files.update([os.path.basename(x) for x in gl])
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except Exception as e:
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emit_error(e)
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# Parse the .spec file
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sources, patches = consume_spec(spec_file)
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fileset = set()
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fileset.update(sources)
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fileset.update(patches)
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# Find out anything that's unused
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unused = [x for x in patch_files if x not in fileset]
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if len(unused) == 0:
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print("No unused patches")
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sys.exit(0)
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# git rm all the unused patches
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for unused_patch in unused:
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cmd = "git -C \"{}\" rm \"{}\"".format(base_dir, unused_patch)
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try:
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subprocess.check_call(cmd, shell=True)
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except Exception as e:
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emit_error("Cannot remove file {}: {}".format(unused_patch, e))
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# Now commit the changes
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try:
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commit_msg = "Drop unused patches from tree"
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cmd = "git -C \"{}\" commit -m '{}'".format(base_dir, commit_msg)
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subprocess.check_call(cmd, shell=True)
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except Exception as e:
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emit_error("Cannot commit changes: {}".format(e))
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if __name__ == '__main__':
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main()
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