Migrate sync job to GitHub Actions and remove CircleCI config (#3508)

* Add sync, label and merge jobs

Signed-off-by: Ankita Katiyar <ankitakatiyar2401@gmail.com>

* Add comments to the workflows

Signed-off-by: Ankita Katiyar <ankitakatiyar2401@gmail.com>

* Update merge gatekeeper

Signed-off-by: Ankita Katiyar <ankitakatiyar2401@gmail.com>

---------

Signed-off-by: Ankita Katiyar <ankitakatiyar2401@gmail.com>

.github/labeler.yml

@@ -0,0 +1,3 @@
+automerge:
+  - any:
+      - head-branch: ['merge-main-to-develop']

.github/workflows/auto-merge-prs.yml

@@ -0,0 +1,20 @@
+name: Auto-merge sync PR
+# This workflow automatically merges the PRs labelled "automerge". This is a part of syncing
+# of `develop` and `main` branches.
+
+on:
+  schedule:
+    - cron: '*/60 * * * *' # every 60 minutes
+  workflow_dispatch: # on button click
+
+jobs:
+  automerge:
+    permissions:
+      pull-requests: read
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Automerge PRs with "automerge" label
+        uses: "pascalgn/automerge-action@v0.16.2"
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/label-pr.yml

@@ -0,0 +1,22 @@
+name: Label PRs
+# This workflow is a part of the sync and merge job, it labels the PRs created by `sync.yml`
+# workflows with the "automerge" label. This label is used by the `auto-merge-prs.yml` workflow
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+    branches:
+      - develop
+
+
+jobs:
+  label-pr:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+    steps:
+      - name: Label PR with "automerge"
+        uses: actions/labeler@v5

.github/workflows/merge-gatekeeper.yml

@@ -24,4 +24,4 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           timeout: 3600
           interval: 30
-          ignored: 'lint_only, runner / vale,ci/circleci: win_e2e_tests-3.7,ci/circleci: win_pip_compile-3.9,ci/circleci: win_e2e_tests-3.9,ci/circleci: win_pip_compile-3.8,ci/circleci: lint-3.7,ci/circleci: win_pip_compile-3.7,ci/circleci: pip_compile-3.7,ci/circleci: e2e_tests-3.7,ci/circleci: win_unit_tests-3.7,ci/circleci: win_unit_tests-3.9,ci/circleci: e2e_tests-3.8,ci/circleci: win_unit_tests-3.10,ci/circleci: win_pip_compile-3.10,ci/circleci: win_unit_tests-3.8,ci/circleci: e2e_tests-3.9,ci/circleci: unit_tests-3.10,ci/circleci: unit_tests-3.8,ci/circleci: e2e_tests-3.10,ci/circleci: lint-3.8,ci/circleci: unit_tests-3.9,ci/circleci: unit_tests-3.7,ci/circleci: win_e2e_tests-3.10,ci/circleci: pip_compile-3.8,ci/circleci: pip_compile-3.10,ci/circleci: win_e2e_tests-3.8,ci/circleci: lint-3.9,ci/circleci: pip_compile-3.9,ci/circleci: lint-3.10,build_code,ci/circleci: check-updated-files,regular'
+          ignored: 'CircleCI Pipeline, runner / vale,'

.github/workflows/sync.yml

@@ -0,0 +1,25 @@
+name: Sync `main` and `develop`
+# This workflow merges commits from `main` branch to `develop` branch if the commits can be merged
+# cleanly, otherwise creates a PR for the maintainers to manually resolve the conflicts.
+
+on:
+  schedule:
+    - cron: '*/30 * * * *' # every 30 minutes
+  workflow_dispatch: # on button click
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set git email and name
+        run: |
+          git config --global user.email "kedro@kedro.com"
+          git config --global user.name "Kedro"
+
+      - name: Maybe merge to develop or raise a PR
+        run: ./tools/github_actions/merge.sh . "main" "develop" "${{ secrets.GITHUB_TOKEN }}"