Split build and test CI entry point from workflow to provide a reusable interface

.github/workflows/build_and_functional_tests.yml

@@ -1,9 +1,6 @@
-name: Build and run functional tests using ragger through reusable workflow
+name: Call build and tests entry point
 
-# This workflow will build the app and then run functional tests using the Ragger framework upon Speculos emulation.
-# It calls a reusable workflow developed by Ledger's internal developer team to build the application and upload the
-# resulting binaries.
-# It then calls another reusable workflow to run the Ragger tests on the compiled application binary.
+# This workflow will call the companion workflow reusable_build_and_functional_tests.yml of this repository
 #
 # The build part of this workflow is mandatory, this ensures that the app will be deployable in the Ledger App Store.
 # While the test part of this workflow is optional, having functional testing on your application is mandatory and this workflow and
@@ -28,17 +25,9 @@ on:
   pull_request:
 
 jobs:
-  build_application:
-    name: Build application using the reusable workflow
-    uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_build.yml@v1
+  job_call_build_and_test:
+    name: Build and test
+    uses: ./.github/workflows/reusable_build_and_functional_tests.yml
     with:
-      upload_app_binaries_artifact: "compiled_app_binaries"
-      builder: ledger-app-builder
-
-  ragger_tests:
-    name: Run ragger tests using the reusable workflow
-    needs: build_application
-    uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_ragger_tests.yml@v1
-    with:
-      download_app_binaries_artifact: "compiled_app_binaries"
+      branch: ${{ github.ref }}
       regenerate_snapshots: ${{ inputs.golden_run == 'Open a PR' }}

.github/workflows/reusable_build_and_functional_tests.yml

@@ -0,0 +1,51 @@
+name: Build and run functional tests using ragger entry point
+
+# This workflow will build the app and then run functional tests using the Ragger framework upon Speculos emulation.
+# It calls a reusable workflow developed by Ledger's internal developer team to build the application and upload the
+# resulting binaries.
+# It then calls another reusable workflow to run the Ragger tests on the compiled application binary.
+#
+# This workflow is itself written as a reusable workflow so it can be triggered by itself (file
+# build_and_functional_tests.yml), or triggered by external repositories CI (used by various non regression workflows
+# we have). You do not need to keep this split, so you can merge this file and build_and_functional_tests.yml on your
+# fork
+
+on:
+  workflow_call:
+    inputs:
+      branch:
+        required: false
+        default: 'main'
+        type: string
+
+      test_filter:
+        required: false
+        default: '""'
+        type: string
+
+      regenerate_snapshots:
+        description: 'Clean snapshots, regenerate them, commit the changes in a branch, and open a PR'
+        required: false
+        default: false
+        type: boolean
+
+jobs:
+  build_application:
+    name: Build application using the reusable workflow
+    uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_build.yml@v1
+    with:
+      app_repository: LedgerHQ/app-boilerplate-rust
+      app_branch_name: ${{ inputs.branch }}
+      upload_app_binaries_artifact: "compiled_app_binaries"
+      builder: ledger-app-builder
+
+  ragger_tests:
+    name: Run ragger tests using the reusable workflow
+    needs: build_application
+    uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_ragger_tests.yml@v1
+    with:
+      app_repository: LedgerHQ/app-boilerplate-rust
+      app_branch_name: ${{ inputs.branch }}
+      download_app_binaries_artifact: "compiled_app_binaries"
+      test_filter: ${{ inputs.test_filter }}
+      regenerate_snapshots: ${{ inputs.regenerate_snapshots }}