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59 lines
2.5 KiB
Python
59 lines
2.5 KiB
Python
#!/usr/bin/env python3
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"""
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This is a simple program that will insert some regular file into the root
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commit(s) of history, e.g. adding a file named LICENSE or COPYING to the
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first commit. It also rewrites commit hashes in commit messages to update
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them based on these changes.
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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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# Technically, this program could be replaced by a one-liner:
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# git filter-repo --force --commit-callback "if not commit.parents: commit.file_changes.append(FileChange(b'M', $RELATIVE_TO_PROJECT_ROOT_PATHNAME, b'$(git hash-object -w $FILENAME)', b'100644'))"
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# but let's do it as a full-fledged program that imports git_filter_repo
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# anyway...
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import argparse
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import os
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import subprocess
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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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parser = argparse.ArgumentParser(
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description='Add a file to the root commit(s) of history')
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parser.add_argument('--file', type=os.fsencode,
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help=("Relative-path to file whose contents should be added to root commit(s)"))
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args = parser.parse_args()
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if not args.file:
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raise SystemExit("Error: Need to specify the --file option")
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fhash = subprocess.check_output(['git', 'hash-object', '-w', args.file]).strip()
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fmode = b'100755' if os.access(args.file, os.X_OK) else b'100644'
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# FIXME: I've assumed the file wasn't a directory or symlink...
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def fixup_commits(commit, metadata):
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if len(commit.parents) == 0:
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commit.file_changes.append(fr.FileChange(b'M', args.file, fhash, fmode))
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# FIXME: What if the history already had a file matching the given name,
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# but which didn't exist until later in history? Is the intent for the
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# user to keep the other version that existed when it existed, or to
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# overwrite the version for all of history with the specified file? I
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# don't know, but if it's the latter, we'd need to add an 'else' clause
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# like the following:
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#else:
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# commit.file_changes = [x for x in commit.file_changes
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# if x.filename != args.file]
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fr_args = fr.FilteringOptions.parse_args(['--preserve-commit-encoding',
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'--force',
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'--replace-refs', 'update-no-add'])
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filter = fr.RepoFilter(fr_args, commit_callback=fixup_commits)
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filter.run()
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