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Archive a repo's history

How to archive a (document) repo and copy the last commit to a new one. republik/magazine is used as an example here. For other repos, make sure to also copy the meta tag in step 4.

Run

0. Make a Backup

mkdir backup
cd backup
git clone --mirror git@github.com:republik/magazine.git
cd ..

1. Clone

git clone git@github.com:republik/magazine.git
cd magazine

2. Rebase

Make sure you're on the right branch before running.

ref=$(git symbolic-ref HEAD 2> /dev/null)
b="${ref#refs/heads/}"
c="$(git rev-parse $b)"
echo "Current branch: $b $c"
echo "Recreating $b branch with initial commit $c ..."
git checkout --orphan new-start $c
git commit -C $c
git rebase --onto new-start $c $b
git branch -d new-start
git reflog expire --expire=all
git gc --prune=all

3. Roll

  • Rename repo on github ${name}-${yearStart}${monthStart}-${yearEnd}${monthEnd}
  • Archiv the renamed repo ${name}-${yearStart}${monthStart}-${yearEnd}${monthEnd}
  • Create new repo ${name}

4. Tags

If your repo has a meta tag, copy it too.

# note tag messages (M) & version (X)
git show publication

git tag -d vX
git tag -d publication
git tag -d prepublication

git tag -a vX # insert message (M)
git tag publication vX
git tag prepublication vX

git push origin vX
git push origin publication
git push origin prepublication