chore: trigger CI by labels only

A new action helps by assigning labels based on the changed files.
A new set of labels makes it easy to distinguish which unit tests should be run.
We also set the trigger to only one target (the one coresponding to label changes), so that
no CI run is double triggered and nothing needs to be aborted.

.github/labeler.yml

@@ -0,0 +1,55 @@
+ci/run-unit/@cdktf/api-core:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/@cdktf/api-core/**"
+  # All scripts we use
+  - "tools/align-version.sh"
+
+ci/run-unit/@cdktf/commons:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/@cdktf/commons/**"
+  # All scripts we use
+  - "tools/align-version.sh"
+
+ci/run-unit/@cdktf/hcl2cdk:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/@cdktf/hcl2cdk/**"
+  # All scripts we use
+  - "tools/align-version.sh"
+
+ci/run-unit/@cdktf/hcl2json:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/@cdktf/hcl2json/**"
+  # All scripts we use
+  - "tools/align-version.sh"
+
+ci/run-unit/@cdktf/provider-generator:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/@cdktf/provider-generator/**"
+  # All scripts we use
+  - "tools/align-version.sh"
+
+ci/run-unit/cdktf-cli:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/cdktf-cli/**"
+  # All scripts we use
+  - "tools/align-version.sh"
+
+ci/run-unit/cdktf:
+  # The workflow used
+  - ".github/workflows/unit.yml"
+  # All packages under test
+  - "packages/cdktf/**"
+  # All scripts we use
+  - "tools/align-version.sh"

.github/workflows/examples-pr.yml

@@ -1,6 +1,5 @@
 name: Examples - PR
 on:
-  pull_request: {}
   pull_request_target:
     types:
       - opened
@@ -11,7 +10,7 @@ on:
 
 jobs:
   examples:
-    if: contains(github.event.pull_request.labels.*.name, 'ci/run-examples') || contains(github.event.pull_request.labels.*.name, 'ci/run-all')
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-examples') || contains(github.event.pull_request.labels.*.name, 'ci/run-all') }}
     uses: ./.github/workflows/examples.yml
     with:
       concurrency_group_prefix: pr

.github/workflows/integration-pr.yml

@@ -1,6 +1,5 @@
 name: Integration Tests - PR
 on:
-  pull_request: {}
   pull_request_target:
     types:
       - opened
@@ -11,7 +10,7 @@ on:
 
 jobs:
   integration_test:
-    if: contains(github.event.pull_request.labels.*.name, 'ci/run-integration') || contains(github.event.pull_request.labels.*.name, 'ci/run-all')
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-integration') || contains(github.event.pull_request.labels.*.name, 'ci/run-all') }}
     uses: ./.github/workflows/integration.yml
     with:
       concurrency_group_prefix: pr

.github/workflows/pr-size.yml → .github/workflows/pr-labels.yml

@@ -1,9 +1,20 @@
-name: PR Size label
-
+name: "Pull Request Labeler"
 on: [pull_request]
 
 jobs:
-  labeler:
+  pr_ci_trigger:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@v4
+        with:
+          # The config file lives under .github/labeler.yml
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          sync-labels: false # If set to true we could not easily overwrite it individually
+
+  pr_size:
     runs-on: ubuntu-latest
     name: Label the PR size
     steps:

.github/workflows/unit-all.yml

@@ -1,6 +1,12 @@
 name: Unit Tests - PR
 on:
-  pull_request: {}
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+      - labeled
+      - reopened
 
 jobs:
   all_unit_tests:
@@ -25,3 +31,94 @@ jobs:
       package: ${{ matrix.package }}
       terraform_version: ${{ matrix.terraform_version }}
     secrets: inherit
+
+  cdktf_api_core:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/@cdktf/api-core') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf-api-core
+      package: "@cdktf/api-core"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit
+
+  cdktf_commons:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/@cdktf/commons') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf-commons
+      package: "@cdktf/commons"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit
+
+  cdktf_hcl2cdk:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/@cdktf/hcl2cdk') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf-hcl2cdk
+      package: "@cdktf/hcl2cdk"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit
+
+  cdktf_hcl2json:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/@cdktf/hcl2json') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf-hcl2json
+      package: "@cdktf/hcl2json"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit
+
+  cdktf_provider_generator:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/@cdktf/provider-generator') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf-provider-generator
+      package: "@cdktf/provider-generator"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit
+
+  cdktf_cli:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/cdktf-cli') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf-cli
+      package: "cdktf-cli"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit
+
+  cdktf:
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'ci/run-unit/cdktf') }}
+    uses: ./.github/workflows/unit.yml
+    strategy:
+      fail-fast: false
+      matrix:
+        terraform_version: ["1.2.8"]
+    with:
+      concurrency_group_prefix: pr-cdktf
+      package: "cdktf"
+      terraform_version: ${{ matrix.terraform_version }}
+    secrets: inherit