Run action without Docker

Move to composite action as described in
https://dev.to/github/build-your-own-github-action-without-a-docker-container-1eic.
The goal is to improve runtime by avoiding to build a Docker image.

Closes #121

.github/workflows/main.yml

@@ -1,4 +1,4 @@
-on: 
+on:
   - repository_dispatch
   - workflow_dispatch
   - push
@@ -14,14 +14,14 @@ jobs:
       # we must check out the repository
       - name: Checkout
         uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
-      # `lycheeverse/lychee-action@...` gets classified as an e-mail address,
-      # causing this test to fail.
-      # TODO: Reactive once this issue is fixed upstream:
-      # https://github.com/robinst/linkify/issues/29
-      #- name: test defaults
-      #  uses: ./
-      #  with:
-      #    fail: true
+      - name: test defaults
+        uses: ./
+        with:
+          fail: true
+      - name: test explicit lychee version
+        uses: ./
+        with:
+          lycheeVersion: 0.9.0
       - name: test globs
         uses: ./
         with:

README.md

@@ -83,12 +83,13 @@ See [lychee's documentation][lychee-args] for all possible arguments.
 
 On top of that, the action also supports some additional arguments.
 
-| Argument   | Description                                                                      |
-| ---------- | -------------------------------------------------------------------------------- |
-| format     | Summary output format (markdown, json,...)                                       |
-| output     | Summary output file path                                                         |
-| fail       | Fail entire pipeline on error (i.e. when lychee exit code is not 0)              |
-| jobSummary | Write Github job summary at the end of the job (written on Markdown output only) |
+| Argument      | Description                                                                      |
+| ------------- | -------------------------------------------------------------------------------- |
+| format        | Summary output format (markdown, json,...)                                       |
+| output        | Summary output file path                                                         |
+| fail          | Fail entire pipeline on error (i.e. when lychee exit code is not 0)              |
+| jobSummary    | Write Github job summary at the end of the job (written on Markdown output only) |
+| lycheeVersion | Overwrite the lychee version to be used                                          |
 
 See [action.yml](./action.yml) for a full list of supported arguments.
 

action.yml

@@ -21,9 +21,31 @@ inputs:
     description: "write Github job summary at the end of the job (written on Markdown output only)"
     default: true
     required: false
+  lycheeVersion:
+    description: "use custom version of lychee link checker"
+    default: 0.9.0
+    required: false
 runs:
-  using: "docker"
-  image: "Dockerfile"
+  using: "composite"
+  steps:
+    - name: install lychee
+      run: |
+        curl -LO 'https://github.com/lycheeverse/lychee/releases/download/v${{ inputs.LYCHEEVERSION }}/lychee-v${{ inputs.LYCHEEVERSION }}-x86_64-unknown-linux-gnu.tar.gz'
+        tar -xvzf lychee-v${{ inputs.LYCHEEVERSION }}-x86_64-unknown-linux-gnu.tar.gz
+        chmod 755 lychee
+        mv lychee /usr/local/bin/lychee
+      shell: bash
+    - run: ${{ github.action_path }}/entrypoint.sh
+      env:
+        #https://github.com/actions/runner/issues/665
+        INPUT_GITHUB_TOKEN: ${{ inputs.GITHUB_TOKEN }}
+        INPUT_ARGS: ${{ inputs.ARGS }}
+        INPUT_FORMAT: ${{ inputs.FORMAT }}
+        INPUT_OUTPUT: ${{ inputs.OUTPUT }}
+        INPUT_FAIL: ${{ inputs.FAIL }}
+        INPUT_JOBSUMMARY: ${{ inputs.JOBSUMMARY }}
+      shell: bash
+
 branding:
   icon: "external-link"
   color: "purple"