mcp-discovery-action/action.yml at main · rust-mcp-stack/mcp-discovery-action · GitHub

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name: "MCP Discovery Action"
author: "Ali Hashemi"
description: "A GitHub Action to run the mcp-discovery CLI for printing, creating, or updating MCP server capability details"

inputs:
  token:
    description: "GitHub token used for creating or updating output files containing MCP server capabilities. Defaults to the built-in secrets.GITHUB_TOKEN."
    required: false
    default: ${{ github.token }}
  command:
    description: "CLI command to run (print, create, or update)"
    required: true
  mcp-launch-command:
    description: "Command and arguments to launch the MCP server (e.g., rust-mcp-filesystem . )"
    required: true
  filename:
    description: "Output file path for create/update commands"
    default: "mcp-discovery.md"
    required: false
  template:
    description: "Built-in template for output (md, md-plain, html, txt)"
    required: false
  template-file:
    description: "Path to a custom Handlebars template file"
    required: false
  template-string:
    description: "Custom Handlebars template content as a string"
    required: false
  log-level:
    description: "Specifies the logging level for the CLI (default: info)"
    default: "info"
    required: false
  version:
    description: "CLI version (e.g., latest or v0.1.2)"
    required: true
    default: "latest"

runs:
  using: "composite"
  steps:
    - name: Set mcp-discovery CLI version
      id: set-url
      shell: bash
      run: |
        if [ "${{ inputs.version }}" = "latest" ]; then
          echo "INSTALLER_URL=https://github.com/rust-mcp-stack/mcp-discovery/releases/latest/download/mcp-discovery-installer.sh" >> $GITHUB_ENV
        else
          echo "INSTALLER_URL=https://github.com/rust-mcp-stack/mcp-discovery/releases/download/${{ inputs.version }}/mcp-discovery-installer.sh" >> $GITHUB_ENV
        fi
    - name: Install mcp-discovery CLI
      shell: bash
      run: |
        curl --proto '=https' --tlsv1.2 -LsSf $INSTALLER_URL | sh

    - name: Run mcp-discovery CLI
      shell: bash
      env:
        CLI_COMMAND: ${{ inputs.command }}
        MCP_LAUNCH_COMMAND: ${{ inputs.mcp-launch-command }}
        FILENAME: ${{ inputs.filename }}
        TEMPLATE: ${{ inputs.template }}
        TEMPLATE_FILE: ${{ inputs.template-file }}
        TEMPLATE_STRING: ${{ inputs.template-string }}
        LOG_LEVEL: ${{ inputs.log-level }}
      run: |
        # Build CLI arguments
        ARGS=""
        [ -n "$FILENAME" ] && ARGS="$ARGS --filename \"$FILENAME\""
        [ -n "$TEMPLATE" ] && ARGS="$ARGS --template \"$TEMPLATE\""
        [ -n "$TEMPLATE_FILE" ] && ARGS="$ARGS --template-file \"$GITHUB_WORKSPACE/$TEMPLATE_FILE\""
        [ -n "$TEMPLATE_STRING" ] && ARGS="$ARGS --template-string \"$TEMPLATE_STRING\""
        [ -n "$LOG_LEVEL" ] && ARGS="$ARGS --log-level \"$LOG_LEVEL\""
        # Run CLI
        echo "Running: mcp-discovery $CLI_COMMAND $ARGS -- $MCP_LAUNCH_COMMAND"
        eval "mcp-discovery $CLI_COMMAND $ARGS -- $MCP_LAUNCH_COMMAND"

    - name: Commit changes
      if: ${{ inputs.filename != '' }}
      shell: bash
      env:
        FILENAME: ${{ inputs.filename }}
        GITHUB_TOKEN: ${{ inputs.token }}
      run: |
        git config user.name "GitHub Action"
        git config user.email "action@github.com"
        git add "$FILENAME"
        if git diff --staged --quiet; then
          echo "No changes to $FILENAME"
        else
          git commit -m "$CLI_COMMAND $FILENAME via mcp-discovery"
          git push
        fi
branding:
  icon: "aperture"
  color: "purple"