V2 of the action

.eslintrc.cjs

@@ -0,0 +1,9 @@
+module.exports = {
+    extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'],
+    parser: '@typescript-eslint/parser',
+    plugins: ['@typescript-eslint'],
+    root: true,
+    rules: {
+        'curly': 'error'
+    }
+};

.github/workflows/README.md

@@ -0,0 +1,9 @@
+The testing workflow is divided into three parts:
+ - `test-build.yml` is run on `ubuntu-latest` and contains source-related checks:
+ linters, formatters and verifying whether the sources match dist/ directory.
+ - `test-action.yml` contains simple, general integration tests of the action
+ that should be run on each platform.
+ - `test-inputs.yml` is run on `ubuntu-latest` and contains specific integration
+ tests checking whether the action inputs are processed properly.
+
+`setup-test-workspace` is a helper action that creates a workspace containing two crates: the test fork of `ref_slice` and a dummy crate that has no matching baseline version on `crates.io`.

.github/workflows/ci.yml

@@ -6,52 +6,20 @@ on:
     branches:
       - main
 
-env:
-  RUST_BACKTRACE: 1
-  CARGO_TERM_COLOR: always
-
 jobs:
+  test-build:
+    name: Test build
+    uses: ./.github/workflows/test-build.yml
+
   test-action:
-    name: Test the action
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the test repository
-        uses: actions/checkout@v3
-        with:
-          repository: mgr0dzicki/cargo-semver-action-ref-slice
-          fetch-depth: 0
-          persist-credentials: true
-      - name: Checkout the action
-        uses: actions/checkout@v3
-        with:
-          path: action
-      # Assumes that the latest published normal version of `ref_slice` smaller
-      # than 1.2.2 is 1.2.1.
-      # TODO: Change the crate version in the corresponding branch `patch_change`
-      # to 1.2.1 once new logic of choosing baseline is adapted. Otherwise
-      # if new version 1.2.2 of `ref_slice` is released, the tests might stop
-      # working correctly.
-      - name: Checkout the test with patch change and patch version bump
-        run: git checkout patch_change
-      - name: Run the action
-        uses: ./action/
-      # Assumes that the latest published normal version of `ref_slice` smaller
-      # than 1.2.2 exports a public function `ref_slice`.
-      # TODO: Change the crate version in the corresponding branch `major_change`
-      # to 1.2.1 once new logic of choosing baseline is adapted. Otherwise
-      # if new version 1.2.2 of `ref_slice` is released, the tests might stop
-      # working correctly.
-      - name: Checkout the test with major change and patch version bump
-        run: git checkout major_change
-      - name: Run the action (allowed to fail)
-        id: action_major
-        uses: ./action/
-        continue-on-error: true
-      - name: Check the action outcome
-        run: |
-          if [[ "${{ steps.action_major.outcome }}" != 'failure' ]]; then
-            echo "Error! The action should have failed because of the breaking change, but it has not."
-            exit 1
-          else
-            echo "OK! The action has failed as expected on the breaking change."
-          fi
+    name: Smoke test the action
+    uses: ./.github/workflows/test-action.yml
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    with:
+      runs-on: ${{ matrix.os }}
+
+  test-inputs:
+    name: Test action inputs
+    uses: ./.github/workflows/test-inputs.yml

.github/workflows/setup-test-workspace/action.yml

@@ -0,0 +1,24 @@
+name: Setup test workspace
+inputs:
+  ref-slice-ref:
+    description: 'Reference of the ref_slice to checkout'
+    required: false
+    default: ''
+runs:
+  using: 'composite'
+  steps:
+      - name: Checkout the ref-slice fork
+        uses: actions/checkout@v3
+        with:
+          repository: mgr0dzicki/cargo-semver-action-ref-slice
+          ref: ${{ inputs.ref-slice-ref }}
+          persist-credentials: true
+          path: ref_slice
+      - name: Create dummy crate
+        # This crate does not have a matching baseline on crates.io, so any try
+        # of checking it should make cargo-semver-checks fail.
+        run: cargo new cargo-semver-action-dummy --lib
+        shell: bash
+      - name: Create workspace Cargo.toml
+        run: echo -e "[workspace]\nmembers=['ref_slice','cargo-semver-action-dummy']" > Cargo.toml
+        shell: bash

.github/workflows/test-action.yml

@@ -0,0 +1,50 @@
+name: Smoke test the action
+
+# Assumes that the latest published normal version of `ref_slice` smaller
+# than 1.2.2 is 1.2.1.
+# TODO: Change the crate version in the corresponding branches `patch_change`
+# and `major_change` to 1.2.1 once new logic of choosing baseline is adapted.
+# Otherwise if new version 1.2.2 of `ref_slice` is released, the tests might
+# stop working correctly.
+
+on:
+  workflow_call:
+    inputs:
+      runs-on:
+        required: true
+        type: string
+
+env:
+  RUST_BACKTRACE: 1
+  CARGO_TERM_COLOR: always
+
+jobs:
+  run-tests:
+    name: Run tests
+    runs-on: ${{ inputs.runs-on }}
+    steps:
+      - name: Checkout the test repository and test with patch change and patch version bump
+        uses: actions/checkout@v3
+        with:
+          repository: mgr0dzicki/cargo-semver-action-ref-slice
+          ref: patch_change
+          persist-credentials: true
+      - name: Checkout the action
+        uses: actions/checkout@v3
+        with:
+          path: action
+      - name: Run the action
+        uses: ./action/
+      - name: Checkout the test with major change and patch version bump
+        run: |
+          git fetch origin major_change
+          git checkout major_change
+      - name: Run the action (allowed to fail)
+        id: action_major
+        uses: ./action/
+        continue-on-error: true
+      - name: Fail if the action has not returned any errors (but it should have)
+        if: steps.action_major.outcome != 'failure'
+        run: |
+          echo "Error! The action should have failed because of the breaking change, but it has not."
+          exit 1

.github/workflows/test-build.yml

@@ -0,0 +1,54 @@
+name: Test action build
+
+on:
+  workflow_call:
+
+jobs:
+  test-build:
+    name: Check if the source files build successfully and match dist/ directory
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the action
+        uses: actions/checkout@v3
+      - name: Setup Node.js 16.x
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+      - name: Install npm-cli-login
+        run: npm install -g npm-cli-login
+      - name: Login to GitHub npm registry
+        # Both username and email address are irrelevant here, but they must be
+        # specified because otherwise npm-cli-login fails.
+        run: |
+          npm-cli-login -s @actions-rs -r https://npm.pkg.github.com \
+            -u does_not_matter -p ${{ secrets.GITHUB_TOKEN }} -e does_not_m@ter.com
+      - name: Install dependencies
+        run: npm ci
+      - name: Rebuild the action
+        run: npm run all
+      - name: Compare the expected and actual src/ directories
+        run: |
+          if [ "$(git diff src/ | wc -l)" -gt "0" ]; then
+            echo "Source files are not properly formatted!"
+            exit 1
+          fi
+        id: diff_src
+      - name: Upload the expected version of src/ in case of failure
+        uses: actions/upload-artifact@v3
+        if: ${{ failure() && steps.diff_src.conclusion == 'failure' }}
+        with:
+          name: expected-src
+          path: src/
+      - name: Compare the expected and actual dist/ directories
+        run: |
+          if [ "$(git diff dist/ | wc -l)" -gt "0" ]; then
+            echo "Built sources do not match the content of the dist/ directory!"
+            exit 1
+          fi
+        id: diff_dist
+      - name: Upload the expected version of dist/ in case of failure
+        uses: actions/upload-artifact@v3
+        if: ${{ failure() && steps.diff_dist.conclusion == 'failure' }}
+        with:
+          name: expected-dist
+          path: dist/