Generate code into another repository on each push/pr close, remove remote branch on PR close

[bryanhuntesl]

2 repositories, org/proto and org/proto-elixir. 

When protobuf definitions are pushed to an org/proto branch/PR, the protoc compiler is executed (with an Elixir plugin) and the resulting code is committed and pushed to a branch with the same name in org/proto-elixir.

When the PR is closed, the generated code is committed and pushed to master in org/proto-elixir.
When the PR is closed, the feature branch should be deleted in org/proto-elixir (otherwise we’ll end up with a prolifieration of such branches in that repository.

We have two workflows, each configured to handle a different event, my understanding is that there’s no way to make them run sequentially, they are just kicked off when the receive and event.

==\> .github/workflows/pr-close.yml \<==  
name: CI (PR close)  
on:  
&nbsp; pull\_request:  
&nbsp; &nbsp; types: [closed]  

==\> .github/workflows/push.yml \<==  
name: CI (PR push)  
on: [push]  

So, everything works correctly, apart from removing the feature branch in org/proto-elixir when the PR is merged/closed.

...snip...  
- name: Pull request merged  
if: github.event.pull\_request.merged == true  
run: echo merged


name: Extract branch name

shell: bash

run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"

id: extract_branch


name: get the destination repo for the proto -> ex files

if: github.event.pull_request.merged == true

uses: actions/checkout@v2

with:

repository: org/proto-elixir


Relative to $GITHUB_WORKSPACE.
This is the name of the folder where the repo content ends up.
path: proto-elixir

token: ${{ secrets.ORG_BOT_TOKEN }}

ref: master

name: PR merged, commit and push to proto-elixir

if: github.event.pull_request.merged == true

run: |

export repo1_root=pwd

echo "repo1_root: ${repo1_root}"

cd proto-elixir

find . -name README.md -o ( -not -regex './.git.*' -and -not -name '.' ) -delete
cp -R ${repo1_root}/out/elixir/* .
echo "git status git status"
git add --all
git config user.email "[email protected]"

git config user.name "org-bot"
git commit -m ".proto change - commit from proto github workflow"

git push
date=date "+%Y-%m-%d"

short_hash=git log --pretty=format:"%h" -1

tag_name="$date-$short_hash"
git tag $tag_name

git push origin $tag_name

git pull origin

git push origin --delete ${{ steps.extract_branch.outputs.branch }}

But… when executed I’m getting the following error:

PR merged, commit and push to proto-elixir3s  
##[error]Process completed with exit code 1.  
Run export repo1\_root=`pwd`  
repo1\_root: /home/runner/work/proto/proto  
git status On branch master  
Your branch is up to date with 'origin/master'.
Changes not staged for commit:

(use "git add <file>..." to update what will be committed)

(use "git restore <file>..." to discard changes in working directory)

modified: mix.exs
no changes added to commit (use "git add" and/or "git commit -a")

[master 70d7bcf] .proto change - commit from proto github workflow

1 file changed, 1 insertion(+), 1 deletion(-)

To https://github.com/org/proto-elixir

! [remote rejected] master -> master (cannot lock ref 'refs/heads/master': is at b1c334cc9d7da92bc75cc4b8a9ab7ea734400295 but expected bd200c2f57b5ab2eff6353bc20543a3f2ce48aa8)

error: failed to push some refs to 'https://github.com/org/proto-elixir'

##[error]Process completed with exit code 1.

I’m guessing it’s because the checkout happens concurrently in both the workflows ‘CI (PR close)’ and ‘CI (PR push)’ or maybe I’m totally missing something.

In any event it’s a brittle workflow, could I get some feedback please, perhaps someone else has attempted something similar before?

[bryanhuntesl]

Resolved :
Changed last command to :

git push origin --delete $( echo ${{ github.head\_ref }} | sed -e 's\_^refs/heads/\_\_' | sed -e 's\_^refs/remotes/\_\_' | tr -d "\n" )  

also - I wish this forum supported markdown - is the great stuff programmers love