When I need to change the commit dates of various commits, I use an interactive rebase and change them one by one.
How could I change them all in a single command ? In other words, I need to apply a given command to all commits that would be listed in an interactive rebase.
Thanks
git filter-branch is deprecated. Instead, use git filter-repo. You will need to install it.
Here is an excellent article about how to use git-filter-repo to modify the commit date. The git-filter-repo documentation explains the concept of --commit-callback pretty well.
Let's reset the timezone of all commit dates to zero.
# Save this as ../change_time.py
def handle(commit):
"Reset the timezone of all commits."
date_str = commit.author_date.decode('utf-8')
[seconds, timezone] = date_str.split()
new_date = f"{seconds} +0000"
commit.author_date = new_date.encode('utf-8')
handle(commit)
# You need to be in a freshly-cleaned repo. Or use --force.
git clone <...> your_repo
cd your_repo
# First just a dry run.
git filter-repo --dry-run --commit-callback "$(cat ../change_time.py)"
# And now do it for real
git filter-repo --commit-callback "$(cat ../change_time.py)"
Adapted from https://stackoverflow.com/a/750182/7976758:
#!/bin/sh
git filter-branch --env-filter '
GIT_AUTHOR_DATE="2000-12-21 23:45:00"
GIT_COMMITTER_DATE="`date`" # now
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE
' --tag-name-filter cat -- --branches --tags
See https://git-scm.com/docs/git-filter-branch for reference.
git rebase supports the --exec option, which will do exactly that.
-x <cmd>
--exec <cmd>Append "exec <cmd>" after each line creating a commit in the final history. <cmd> will be interpreted as one or more shell commands. Any command that fails will interrupt the rebase, with exit code 1.