From 770c884650a23bf1baeecb2bedf85136c438a1a2 Mon Sep 17 00:00:00 2001
From: pbhandar-amd <138039281+pbhandar-amd@users.noreply.github.com>
Date: Wed, 28 Aug 2024 15:21:44 -0400
Subject: [PATCH] Create merge_ff_only.yml

---
 .github/workflows/merge_ff_only.yml | 139 ++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 .github/workflows/merge_ff_only.yml

diff --git a/.github/workflows/merge_ff_only.yml b/.github/workflows/merge_ff_only.yml
new file mode 100644
index 00000000..2e3ca320
--- /dev/null
+++ b/.github/workflows/merge_ff_only.yml
@@ -0,0 +1,139 @@
+name: Merge (ff only)
+on:
+  workflow_call:
+    inputs:
+        source-repo:
+          required: true
+          type: string
+          description: Source repo path in the format [REPO_OWNER]/[REPO_NAME]
+        target-repo:
+          required: true
+          type: string
+          description: Target repo path in the format [REPO_OWNER]/[REPO_NAME]
+        source-branch:
+          required: true
+          type: string
+          description: Source branch from [SOURCE_REPO] that you want merged into [TARGET_BRANCH] from [TARGET_REPO]
+        target-branch:
+          required: true
+          type: string
+          description: Target branch to merge [SOURCE_BRANCH] from [SOURCE_REPO] into.   
+    secrets:
+        github-token:
+          required: true
+jobs:
+  Promote:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+          repository: ${{ inputs.source-repo }}
+          ref: ${{ inputs.source-branch }}
+          persist-credentials: false
+          fetch-depth: 0
+    - name: Merge source-branch into target-branch
+      env:
+          # gh needs this env var set with the exact name GH_TOKEN
+          GH_TOKEN: ${{ secrets.github-token }}
+          SOURCE_BRANCH: ${{ inputs.source-branch }}
+          TARGET_BRANCH: ${{ inputs.target-branch }}
+          TARGET_REPO: ${{ inputs.target-repo }} 
+      shell: bash
+      run: |
+        git config --global user.email "promote@github.com"
+        git config --global user.name "auto-promote"
+        git config --global --add --bool push.autoSetupRemote true
+        git remote add target-repo "https://$GH_TOKEN@github.com/$TARGET_REPO.git"
+        git fetch -q target-repo
+        git branch --track "$TARGET_BRANCH-target-repo" remotes/target-repo/$TARGET_BRANCH
+        echo "After tracking target branch external"
+        git switch -q "$TARGET_BRANCH-target-repo"
+        # echo "switched to $TARGET_BRANCH-external"
+        # echo "before merging"
+        # merge_msg=$(git merge $SOURCE_BRANCH --no-commit || echo " ")
+        # merge_msg=$(git merge $SOURCE_BRANCH --no-commit || echo " ")
+        # merge_msg=$(git merge $SOURCE_BRANCH --ff-only || echo " ")
+        #merge_msg=$(git merge $SOURCE_BRANCH || echo " ")
+        git merge $SOURCE_BRANCH --ff-only
+        git push -q target-repo HEAD:$TARGET_BRANCH
+        
+        # # echo "after merging"
+        # # echo "before status"
+        # git status --porcelain
+        # #is_merge_conflict=$(git status --porcelain | egrep ^U)
+        # is_merge_conflict=$(git status --porcelain | egrep ^U || echo "")
+        # # echo "after status"
+
+        # if [ -z "$is_merge_conflict" ] ; then
+        #   merge_status=0
+        # else
+        #   merge_status=1
+        # fi
+        
+        # echo "Value of merge_msg is:"
+        # echo "${merge_msg}"
+        # echo ""
+        # echo "Value of merge_status: $merge_status"
+
+        # if [ "$merge_status" -eq 0 ]; then
+        #   # pushes local develop-external branch to external repo's 'develop' branch
+        #   # git add -A
+        #   # diff_files=$(git diff --name-only --cached)
+        #   # if [ -z "$diff_files" ]; then
+        #   #     echo "No files to be promoted to external $TARGET_BRANCH so nothing to merge"
+        #   #     exit 0
+        #   # fi
+        #   # echo "Merge $SOURCE_BRANCH into $TARGET_BRANCH-external"
+        #   # git commit -m "Promote internal $SOURCE_BRANCH into external $TARGET_BRANCH"
+        #   git push -q external HEAD:develop
+        #   echo "Merged changes from internal $SOURCE_BRANCH to external $TARGET_BRANCH successfully"
+        # else
+        #   echo "Encountered a merge conflict when doing a git merge from $SOURCE_BRANCH to $TARGET_BRANCH. We'll create a PR instead"
+        #   dev_branch_count=$(git ls-remote --heads external --list "refs/heads/${DEV_BRANCH}*" | wc -l | xargs)
+        #   echo "Value of dev_branch_count: $dev_branch_count"
+        #   git merge --abort
+        #   if [ "$dev_branch_count" -gt 0 ]; then
+        #     dev_branch_count=$((dev_branch_count + 1))
+        #     echo "Remote branch with the name $TARGET_BRANCH already exists, so we create a branch with the name '${TARGET_BRANCH}-${dev_branch_count}' instead."
+        #     DEV_BRANCH="${TARGET_BRANCH}-${dev_branch_count}"
+        #     git switch -q "$SOURCE_BRANCH"
+        #     git checkout -q -b "$DEV_BRANCH"
+        #   fi
+          
+        #   git push -q external "$DEV_BRANCH"
+        #   #if [ "$dev_branch_count" -gt 0 ]; then
+        #   echo "Create a PR from $DEV_BRANCH into $TARGET_BRANCH and let user resolve merge conflicts manually"
+        #   gh pr create --repo $ROCM_INSTALL_PUBLIC_REPO -B $TARGET_BRANCH -H $DEV_BRANCH --title "[Promote]: Promote internal $SOURCE_BRANCH into $TARGET_BRANCH" --body "Created by Github action" --draft
+        #   #fi
+        # fi
+        
+        
+        # # commit_msg=$(git commit -m "Sync internal $SOURCE_BRANCH to external $TARGET_BRANCH" || echo "error") internal commit test
+        # # echo "Value of commit_msg: $commit_msg" force merge conflict
+        # # commit_status=${PIPESTATUS[0]}
+        # # echo "Value of commit_status is $commit_status"
+        
+        # # if egrep -q "no changes added to commit|nothing to commit, working tree clean|nothing added to commit but untracked files present" <<< "$commit_msg"; then
+        # #   echo "External branch $TARGET_BRANCH is up to date. Nothing to commit"
+        # #   exit 0
+        # # elif [ "$commit_status" -eq 0 ]; then
+        # #   git push external "$TARGET_BRANCH-external"
+        # #elif [ "$commit_status" -eq 128 ]; then
+        # # Encountered some unknown error when merging internal develop into external
+        # # Create a PR instead
+        # # else
+        # #   dev_branch_count=$(git ls-remote --heads external --list "refs/heads/${DEV_BRANCH}*" | wc -l | xargs)
+        # #   echo "Value of dev_branch_count: $dev_branch_count"
+          
+        # #   if [ "$dev_branch_count" -gt 0 ]; then
+        # #     dev_branch_count=$((dev_branch_count + 1))
+        # #     echo "Remote branch with the name $TARGET_BRANCH already exists, so we create a branch with the name '${TARGET_BRANCH}-${dev_branch_count}' instead."
+        # #     DEV_BRANCH="${TARGET_BRANCH}-${dev_branch_count}"
+        # #     git checkout -b "$DEV_BRANCH"
+        # #   fi
+          
+        # #   git push external "$DEV_BRANCH"
+        # #   #if [ "$dev_branch_count" -gt 0 ]; then
+        # #   gh pr create --repo $ROCM_INSTALL_PUBLIC_REPO -B $TARGET_BRANCH -H $DEV_BRANCH --title "[Promote]: Promote internal $SOURCE_BRANCH into $TARGET_BRANCH" --body "Created by Github action" --draft
+        # #   #fi
+        # # fi