fix(short): populate GITHUB_SHA_SHORT correctly

.github/workflows/github-slug-action.yml

@@ -7,12 +7,9 @@ jobs:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
-    concurrency:
-      group: os-testing-${{ github.ref }}-${{ github.event_name }}
-      cancel-in-progress: true
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Load using v3.x
         uses: rlespinasse/github-slug-action@v3.x
       - name: Load using v4.x with prefix
@@ -107,20 +104,50 @@ jobs:
           [[ "${{ env.GITHUB_REF_NAME_SLUG_CS }}" == "${{ env.V4_GITHUB_REF_NAME_SLUG_CS }}" ]]
           [[ "${{ env.GITHUB_REF_NAME_SLUG_URL_CS }}" == "${{ env.V4_GITHUB_REF_NAME_SLUG_URL_CS }}" ]]
         shell: bash
-      - name: Print // Short SHA variables
+      - name: Validate // Short SHA variables
         run: |
           echo "sha              : ${{ env.V4_GITHUB_SHA_SHORT }}"
           echo "pull request sha : ${{ env.V4_GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}"
+          [[ "${{ env.GITHUB_SHA_SHORT }}" == "${{ env.V4_GITHUB_SHA_SHORT }}" ]]
+          [[ "${{ env.GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}" == "${{ env.V4_GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}" ]]
+        shell: bash
+
+  os-testing-without-checkout:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          path: this-action
+          ref: ${{ github.ref }}
+      - name: Load using v3.x
+        uses: rlespinasse/github-slug-action@v3.x
+      - name: Load using v4.x with prefix
+        uses: ./this-action
+        with:
+          prefix: V4_
+      - name: Validate // Short SHA variables
+        run: |
+          echo "sha              : ${{ env.V4_GITHUB_SHA_SHORT }}"
+          echo "pull request sha : ${{ env.V4_GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}"
+          [[ "${{ env.GITHUB_SHA_SHORT }}" == "${{ env.V4_GITHUB_SHA_SHORT }}" ]]
+          [[ "${{ env.GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}" == "${{ env.V4_GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}" ]]
         shell: bash
 
   release:
     runs-on: ubuntu-latest
     concurrency:
       group: release-${{ github.ref }}-${{ github.event_name }}
-    needs: os-testing
+    needs:
+      - os-testing
+      - os-testing-without-checkout
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Release this GitHub Action
         uses: rlespinasse/release-that@v1
         with:

README.md

@@ -161,18 +161,19 @@ jobs:
 
 ### An action could not be found at the URI
 
-If your workflow fail on the `Set up job` task with this kind of log :
+If your workflow fail on the `Set up job` task with this kind of log
 
 ```text
-Download action repository 'rlespinasse/github-slug-action@master'
-##[error]An action could not be found at the URI 'https://api.github.com/repos/rlespinasse/github-slug-action/tarball/master'
+Download action repository 'rlespinasse/github-slug-action@GIT_REFERENCE'
+##[error]An action could not be found at the URI 'https://api.github.com/repos/rlespinasse/github-slug-action/tarball/GIT_REFERENCE'
 ```
 
-> The master branch doesn't exists anymore.
->
-> The master branch EOL has been set to **2020-10-25** after a 6-month deprecation period (more information on the [EOL issue][issue-15])
+If the `GIT_REFERENCE` value is 
 
-Please, use the current branch tag `v4`, branch `v4.x` or a version tag (see [releases pages][releases]) in order to fix your workflow.
+- `v4.x` or after, the branch don't exists anymore following the [end-of-life for a branch](SECURITY.md#end-of-life-of-a-branch) security process.
+- `master`, the branch don't exists anymore, read more about it on the corresponding issue ([EOL issue][issue-15])
+
+Please, use the current major tag `v4` or a version tag (see [releases pages][releases]) in order to fix your workflow.
 
 ## Thanks for talking about us
 

action.yml

@@ -64,14 +64,16 @@ runs:
         prefix: ${{ inputs.prefix }}
 
     # Short
-    - uses: rlespinasse/shortify-git-revision@v1.3.0
+    - uses: rlespinasse/shortify-git-revision@v1.4.0
       with:
         name: GITHUB_SHA
-        continue-on-error: true
+        short-on-error: true
+        length: 8
         prefix: ${{ inputs.prefix }}
-    - uses: rlespinasse/shortify-git-revision@v1.3.0
+    - uses: rlespinasse/shortify-git-revision@v1.4.0
       with:
         name: GITHUB_EVENT_PULL_REQUEST_HEAD_SHA
         revision: ${{ github.event.pull_request.head.sha }}
-        continue-on-error: true
+        short-on-error: true
+        length: 8
         prefix: ${{ inputs.prefix }}