initial import

Author: larsks

changedate.py

@@ -0,0 +1,33 @@
+import click
+import datetime
+import git
+
+
+@click.command()
+@click.option('-d', '--date')
+@click.argument('base')
+def main(date, base):
+    if date is None:
+        date = datetime.datetime.now()
+    else:
+        date = datetime.datetime.fromisoformat(date)
+
+    if '..' not in base:
+        base = f'{base}..HEAD'
+
+    repo = git.Repo()
+    branch = repo.active_branch
+    old_head = repo.head.commit
+
+    for commit in repo.iter_commits(base):
+        print(commit.hexsha[:7])
+        repo.git.checkout(commit)
+        repo.git.commit(amend=True, no_edit=True, date=date.isoformat())
+        repo.git.rebase('HEAD', branch)
+
+    new_head = repo.head.commit
+    print(f'{old_head.hexsha[:7]} -> {new_head.hexsha[:7]}')
+
+
+if __name__ == '__main__':
+    main()

editmsg-recurse.py

@@ -0,0 +1,64 @@
+import click
+import git
+
+
+def clone_commit(old, **kwargs):
+    md = dict(
+        message=old.message,
+        parent_commits=old.parents,
+        author=old.author,
+        committer=old.committer,
+        author_date=old.authored_datetime,
+        commit_date=old.committed_datetime
+    )
+
+    md.update(kwargs)
+
+    return git.Commit.create_from_tree(
+        old.repo, old.tree, **md)
+
+
+def replace(commit, target=None, seen=None, **kwargs):
+    '''update commit <target>
+
+    traverse tree looking for target, then make any requested changes.
+
+    ensure we visit each node only once
+    '''
+
+    if seen is None:
+        seen = set()
+
+    if commit.hexsha in seen:
+        return commit
+
+    seen.add(commit.hexsha)
+
+    if commit == target:
+        new = clone_commit(commit, **kwargs)
+        return new
+
+    parents = list(commit.parents)
+    for i, parent in enumerate(parents):
+        parents[i] = replace(parent, target=target, seen=seen, **kwargs)
+
+    return clone_commit(commit, parent_commits=parents)
+
+
+@click.command()
+@click.option('-m', '--message', required=True)
+@click.argument('rev')
+def main(message, rev):
+    repo = git.Repo()
+    branch = repo.active_branch
+    rev = repo.commit(rev)
+    cur = repo.head.commit
+
+    print('old:', branch.commit)
+    new = replace(cur, target=rev, message=message)
+    branch.set_commit(new)
+    print('new:', branch.commit)
+
+
+if __name__ == '__main__':
+    main()