GitHub の branch protection は force push を防いでも push は防がない

push も防ぐものだと勘違いしてた。

git push

# push できた
$ git push
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Delta compression using up to 4 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (4/4), 407 bytes | 407.00 KiB/s, done.
Total 4 (delta 2), reused 0 (delta 0)
remote: Resolving deltas: 100% (2/2), completed with 1 local object.
To github.com:yasuhiroki/iypymtiycaa
   98b74d8..b6eb250  master -> master

git push -f

# force push はできない
$ git push -f
Enumerating objects: 4, done.
Counting objects: 100% (4/4), done.
Delta compression using up to 4 threads
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 266 bytes | 266.00 KiB/s, done.
Total 3 (delta 1), reused 0 (delta 0)
remote: Resolving deltas: 100% (1/1), completed with 1 local object.
remote: error: GH006: Protected branch update failed for refs/heads/master.
remote: error: Cannot force-push to a protected branch
To github.com:yasuhiroki/iypymtiycaa
 ! [remote rejected] master -> master (protected branch hook declined)
error: failed to push some refs to 'git@github.com:yasuhiroki/iypymtiycaa'