Initial commit

README.md

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+# Satis - composer repository
+Used for building your own composer repository using [composer/satis](https://github.com/composer/satis).
+
+## Inputs
+
+| Input        | Description                                                                                             | Required                     |
+|--------------|---------------------------------------------------------------------------------------------------------|------------------------------|
+| token        | GitHub token that will be used for composer when invoked by satis.<br/>Currently auth is static for "github-oauth" | Yes                          |
+| satis_config | Path to your satis configuration file                                                                   | No.<br/>Default = `./satis.json` |
+
+## Outputs
+None
+
+## Usage
+**Note:** Your `satis.json` **must** contain `"output-dir": ""`
+
+Example `.github/workflow/composer-build.yaml`
+```yaml
+# eg. Can be used to host your internal composer package registry on github pages.
+name: Composer repository
+
+on:
+  - push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: dev-this/satis-build@v1
+        with:
+          token: ${{ GITHUB_TOKEN }} # App/OAuth token, PAT
+      - env:
+          GIT_EMAIL: [email protected]
+          GIT_NAME: cool-bot
+        run: |
+          git config user.name $GIT_NAME
+          git config user.email $GIT_EMAIL
+          git add docs/
+          git commit -m "Re-built repository assets"
+          git push
+```
+
+Example `satis.json`
+```json
+{
+  "name": "my-cool/repository",
+  "homepage": "https://where-are-you/",
+  "repositories": [
+    {
+      "packagist.org": false
+    },
+    {
+      "type": "vcs",
+      "url": "https://github.com/my-cool-org/the-repository"
+    }
+  ],
+  "require-all": true,
+  "output-dir": "docs"
+}
+```

action.yaml

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+name: 'Satis build - composer repository'
+description: 'Build a static composer repository using satis'
+
+inputs:
+  token:
+    description: 'Token to use (ie. GITHUB_TOKEN, App token or a PAT)'
+    required: true
+  satis_config:
+    description: 'Path to satis configuration file (default: ./satis.json)'
+    required: false
+    default: 'satis.json'
+
+runs:
+  using: "composite"
+  steps:
+    - env:
+        COMPOSER_AUTH: '{"github-oauth": {"github.com": "${{ inputs.token }}"}}'
+      run: |
+        echo '{"require": {"composer/satis": "dev-main"}}' > composer.json
+
+        composer require composer/satis --prefer-dist \
+          --no-progress --no-interaction -o \
+          --ignore-platform-reqs
+
+        php vendor/bin/satis build ${{ inputs.satis_config }} -n
+      shell: bash
+
+branding:
+  icon: 'download-cloud'
+  color: 'gray-dark'