From 20cfefd7de95b6be981095b296158a9594aa2f90 Mon Sep 17 00:00:00 2001
From: Florian Bernd <git@flobernd.de>
Date: Mon, 17 Jul 2023 11:00:36 +0200
Subject: [PATCH] Automatically compile/generate output artifacts on push to
 `main` (#2181)

---
 .github/workflows/generate.yml     | 92 ++++++++++++++++++++++++++++++
 .github/workflows/output-check.yml | 34 -----------
 2 files changed, 92 insertions(+), 34 deletions(-)
 create mode 100644 .github/workflows/generate.yml
 delete mode 100644 .github/workflows/output-check.yml

diff --git a/.github/workflows/generate.yml b/.github/workflows/generate.yml
new file mode 100644
index 0000000000..4a6a119cbd
--- /dev/null
+++ b/.github/workflows/generate.yml
@@ -0,0 +1,92 @@
+name: Generate Output
+
+on:
+  push:
+    branches:
+      - 'main'
+      - '7.17'
+      - '8.[0-9]+'
+
+  # For debugging purposes:
+  # pull_request:
+  #   types: [opened, synchronize, reopened]
+  #   branches:
+  #     - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'elastic' && github.actor != 'elasticmachine'
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        token: ${{ secrets.PAT }}
+        persist-credentials: true
+
+    - name: Setup Node 16.x
+      uses: actions/setup-node@v3
+      with:
+        node-version: 16.x
+        cache: npm
+        cache-dependency-path: '**/package-lock.json'
+
+    - name: Setup Dependencies
+      run: |
+        make setup
+
+    - name: Generate Output
+      run: |
+        make compile
+        make generate
+
+    - name: Check for Changed Files
+      id: changes
+      run: |
+        if [ -n "$(git status --porcelain)" ]; then
+          echo "has-changes=1" >> $GITHUB_OUTPUT
+        fi
+
+    - name: Set Git Identity
+      if: steps.changes.outputs.has-changes == '1'
+      run: |-
+        git config --global user.email "elasticmachine@users.noreply.github.com"
+        git config --global user.name "Elastic Machine"
+
+    - name: Push Output
+      if: steps.changes.outputs.has-changes == '1'
+      run: |
+        cd ./output
+
+        git add -A
+        git commit -m "Update specification output"
+
+        git status
+
+        git push
+
+    # For debugging purposes:
+    # - name: Push Output
+    #   if: steps.changes.outputs.has-changes == '1'
+    #   env:
+    #     BRANCH_NAME: output_${{ github.run_id }}_${{ github.run_attempt }}
+    #   run: |
+    #     cd ./output
+
+    #     git fetch
+    #     git switch main
+
+    #     git add -A
+    #     git commit -m "Update specification output"
+
+    #     git status
+
+    #     git push origin HEAD:refs/heads/${{ env.BRANCH_NAME }}
diff --git a/.github/workflows/output-check.yml b/.github/workflows/output-check.yml
deleted file mode 100644
index 4e112886dd..0000000000
--- a/.github/workflows/output-check.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Check output freshness
-
-on: [pull_request]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Use Node.js 16.x
-      uses: actions/setup-node@v1
-      with:
-        node-version: 16.x
-
-    - name: Install
-      run: |
-        npm install --prefix compiler
-        npm install --prefix typescript-generator
-
-    - name: Generate output
-      run: |
-        make generate
-        npm run start --prefix typescript-generator
-
-    - name: Validate TS output
-      run: |
-        npm run validate-ts-view --prefix compiler
-
-    - name: Check freshness
-      run: |
-        if [ -n "$(git status --porcelain)" ]; then echo Error: changes found after running the generation; git diff; git status; exit 1; fi