initial setup action script

.github/workflows/setup.yml

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+name: setup
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+
+    concurrency:
+      # only allow one job per PR running
+      # older pending jobs will be cancelled not to waste CI minutes
+      # cannot use github.job here https://github.com/community/community/discussions/13496
+      group: ${{ github.workflow }}-setup-${{ github.ref }}
+      cancel-in-progress: true
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Chalk
+        uses: ./
+
+      - name: Verify Setup
+        run: |
+          echo 'log_level: "trace"' | sudo tee /etc/chalk.conf
+          set -x
+          which chalk
+          which docker
+          chalk version
+          docker version

.gitignore

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+tags

README.md

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+# Setup Chalk
+
+GitHub Action to setting up [Chalk].
+
+This action will install `chalk` and will also wrap other commands
+`chalk` supports such as `docker`.
+
+## Usage
+
+```yaml
+name: ci
+
+on:
+  push:
+
+jobs:
+  buildx:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Chalk
+        uses: crashappsec/setup-chalk-version
+```
+
+## Customizing
+
+The following parameters can be provided to the action.
+
+| Name      | Type   | Default | Description                                                                                                     |
+| --------- | ------ | ------- | --------------------------------------------------------------------------------------------------------------- |
+| `version` | String |         | Version of chalk to install. By default latest version is installed. See [releases] for all available versions. |
+| `load`    | String |         | Chalk config to load. Can be either path to a file or an URL.                                                   |
+
+For example:
+
+```yaml
+- name: Set up Chalk
+  uses: crashappsec/setup-chalk-version
+  with:
+    version: "0.1.2"
+```
+
+[chalk]: https://github.com/crashappsec/chalk/
+[releases]: https://crashoverride.com/releases

action.yml

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+name: Setup Chalk
+description: Install chalk and wrap supported commands
+
+inputs:
+  version:
+    description: |
+      Version of chalk to install.
+      By default latest version is installed.
+      See https://crashoverride.com/releases for all available versions.
+    required: false
+  load:
+    description: |
+      Chalk config to load.
+      Can be either path to a file or an URL.
+    required: false
+
+runs:
+  using: "composite"
+  steps:
+    # https://docs.sigstore.dev/system_config/installation/
+    - name: Install cosign
+      uses: sigstore/cosign-installer@main
+
+    - name: Add Chalk to PATH
+      shell: bash
+      run: |
+        echo "$HOME/.chalk/bin" >> $GITHUB_PATH
+
+    - name: Set up chalk
+      shell: bash
+      working-directory: ${{ github.action_path }}
+      run: |
+        ./setup.sh \
+          --version=${{ inputs.version }} \
+          --load=${{ inputs.load }} \
+          --prefix=$HOME/.chalk \
+          ${{ runner.debug == '1' && '--debug' || '' }}