Unable to update git history, all refs are unchanged

Question

I'm attempting to re-write some git history using the script below, slightly modified from this blog, which updates emails. I initially wanted to be more secure and decided to enable Block command line pushes that expose my email on GitHub, but realized my contribution graph was no longer updating.

#!/bin/bash

# Taken from https://blog.tinned-software.net/rewrite-author-of-entire-git-repository/
if [[ $# -eq 3 ]]; then
   git filter-branch -f --env-filter "
      if [ '$GIT_COMMITTER_EMAIL' = '$1' ]; then
         export GIT_COMMITTER_NAME='$2'
         export GIT_COMMITTER_EMAIL='$3'
      fi
      if [ '$GIT_AUTHOR_EMAIL' = '$1' ]; then
         export GIT_AUTHOR_NAME='$2'
         export GIT_AUTHOR_EMAIL='$3'
      fi
      " --tag-name-filter cat -- --all
else
   echo "usage: $0 OLD_EMAIL NEW_EMAIL NEW_NAME"
   echo ""
   echo "    OLD_EMAIL     The email address to be replaced in the commits"
   echo "    NEW_EMAIL     The new author email address to be used in the commit matching OLD_EMAIL"
   echo "    NEW_NAME      The name which should be used in the commit matching OLD_EMAIL"
fi

The script runs and I get no errors form bash, but git tells me that none of the refs have been modified.

WARNING: Ref 'refs/heads/branch1' is unchanged
WARNING: Ref 'refs/heads/master' is unchanged
WARNING: Ref 'refs/remotes/origin/master' is unchanged
WARNING: Ref 'refs/remotes/origin/branch1' is unchanged
WARNING: Ref 'refs/remotes/origin/master' is unchanged

Why it lists origin/master more than once is beyond me, but this is otherwise all of the branches for this repo, meaning nothing got updated. I did run git shortlog -sne --all before and after to make sure. I've been unable to find any documentation on this error as it directly relates to git. Is there something missing in the script?

Unable to update git history, all refs are unchanged

0 Answers