Enable code generation in repo (#788)

Author: jirikuncar

.github/workflows/test.yml

@@ -12,10 +12,23 @@ concurrency:
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
-    if: false == startsWith(github.event.pull_request.head.ref, 'datadog-api-spec/generated/') && !contains(github.event.pull_request.labels.*.name, 'ci/skip/pre-commit')
+    if: >
+      github.event.pull_request.draft == false &&
+      !contains(github.event.pull_request.labels.*.name, 'ci/skip') &&
+      !contains(github.event.pull_request.head.ref, 'datadog-api-spec/test/') &&
+      !contains(github.event.pull_request.head.ref, 'datadog-api-spec/generated/')
     steps:
-      - uses: actions/checkout@v1
-      - uses: actions/setup-python@v1
+      - name: Get GitHub App token
+        id: get_token
+        uses: tibdex/[email protected]
+        with:
+          app_id: ${{ secrets.PIPELINE_GITHUB_APP_ID }}
+          private_key: ${{ secrets.PIPELINE_GITHUB_APP_PRIVATE_KEY }}
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
+          token: ${{ steps.get_token.outputs.token }}
       - name: Install pre-commit
         run: python -m pip install pre-commit
       - name: set PY
@@ -24,8 +37,20 @@ jobs:
         with:
           path: ~/.cache/pre-commit
           key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
-      - name: Run pre-commit
-        run: pre-commit run --from-ref ${{ github.event.pull_request.base.sha }} --to-ref ${{ github.event.pull_request.head.sha }} --show-diff-on-failure --color=always
+      - id: pre_commit
+        name: Run pre-commit
+        if: github.event.action != 'closed' && github.event.pull_request.merged != true
+        run: |
+          pre-commit run --from-ref ${{ github.event.pull_request.base.sha }} --to-ref ${{ github.event.pull_request.head.sha }} --show-diff-on-failure --color=always
+      - name: Commit changes
+        if: ${{ failure() }}
+        run: |-
+          git add -A
+          git config user.name "${GIT_AUTHOR_NAME}"
+          git config user.email "${GIT_AUTHOR_EMAIL}"
+          git commit -m "pre-commit fixes"
+          git push origin HEAD:${{ github.event.pull_request.head.ref }}
+          exit 1
 
   test:
     strategy:

.pre-commit-config.yaml

@@ -1,17 +1,11 @@
 repos:
 - repo: local
   hooks:
-  - id: generated
-    name: Do not commit generated files
-    language: fail
-    entry: Unstage generated files with 'git reset --' command
-    files: '^datadog_api_client/v.*'
-    verbose: true
   - id: generate
     name: Generate
     language: node
     entry: make
-    files: "^.generator/.*"
+    files: '^(\.generator/.*|\.pre-commit-config\.yaml|setup\.cfg|Makefile)'
     pass_filenames: false
   - id: docs
     name: Format documentation