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80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
#!/usr/bin/env python3
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"""
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This is a simple program that will delete files from history which match
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current gitignore rules, while also:
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1) pruning commits which become empty
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2) pruning merge commits which become degenerate and have no changes
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relative to its remaining relevant parent
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3) rewriting commit hashes in commit messages to reference new commit IDs.
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"""
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"""
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Please see the
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***** API BACKWARD COMPATIBILITY CAVEAT *****
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near the top of git-filter-repo.
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"""
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import argparse
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import os
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import subprocess
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import sys
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try:
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import git_filter_repo as fr
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except ImportError:
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raise SystemExit("Error: Couldn't find git_filter_repo.py. Did you forget to make a symlink to git-filter-repo named git_filter_repo.py or did you forget to put the latter in your PYTHONPATH?")
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class CheckIgnores:
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def __init__(self):
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self.ignored = set()
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self.okay = set()
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cmd = 'git check-ignore --stdin --verbose --non-matching --no-index'
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self.check_ignore_process = subprocess.Popen(cmd.split(),
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE)
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def __del__(self):
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if self.check_ignore_process:
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self.check_ignore_process.stdin.close()
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def get_ignored(self, filenames):
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ignored = set()
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for name in filenames:
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if name in self.ignored:
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ignored.add(name)
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elif name in self.okay:
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continue
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else:
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self.check_ignore_process.stdin.write(name+b'\n')
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self.check_ignore_process.stdin.flush()
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result = self.check_ignore_process.stdout.readline().rstrip(b'\n')
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(rest, pathname) = result.split(b"\t")
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if name != pathname:
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raise SystemExit("Error: Passed {} but got {}".format(name, pathname))
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if rest == b'::':
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self.okay.add(name)
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else:
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self.ignored.add(name)
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ignored.add(name)
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return ignored
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def skip_ignores(self, commit, metadata):
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filenames = [x.filename for x in commit.file_changes]
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bad = self.get_ignored(filenames)
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commit.file_changes = [x for x in commit.file_changes
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if x.filename not in bad]
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def main():
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checker = CheckIgnores()
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args = fr.FilteringOptions.parse_args(sys.argv[1:])
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filter = fr.RepoFilter(args, commit_callback=checker.skip_ignores)
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filter.run()
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if __name__ == '__main__':
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main()
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