chore!: convert to composite action

action.yml

@@ -16,12 +16,10 @@ inputs:
     default: ${{ github.ref_name }}
   dependencies:
     description: "List of LuaRocks dependencies."
-    required: true
-    default: ""
+    required: false
   labels:
     description: "List of package labels."
-    required: true
-    default: ""
+    required: false
   copy_directories:
     description: |
       List of additional directories to copy.
@@ -33,12 +31,10 @@ inputs:
       {{ neovim.plugin.dirs }}
   summary:
     description: "Short description of the package."
-    required: true
-    default: ""
+    required: false
   detailed_description:
     description: "Detailed description of the package."
-    required: true
-    default: ""
+    required: false
   build_type:
     description: "The build type."
     required: true
@@ -49,8 +45,7 @@ inputs:
       - make
   template:
     description: "Path to a rockspec template."
-    required: true
-    default: "/rockspec.template"
+    required: false
   upload:
     description: |
       Whether to upload to LuaRocks.
@@ -65,17 +60,22 @@ inputs:
       in which case LuaRocks will fall back to this one.
     required: false
 runs:
-  using: "docker"
-  image: "Dockerfile"
-  args:
-    - ${{ inputs.name }}
-    - ${{ inputs.version }}
-    - ${{ inputs.dependencies }}
-    - ${{ inputs.labels }}
-    - ${{ inputs.copy-directories }}
-    - ${{ inputs.summary }}
-    - ${{ inputs.detailed_description }}
-    - ${{ inputs.build_type }}
-    - ${{ inputs.template }}
-    - ${{ inputs.upload }}
-    - ${{ inputs.license }}
+  using: "composite"
+  steps:
+    - uses: cachix/install-nix-action@v20
+    - run: nix profile install "${{ github.action_path }}#luarocks-tag-release-action"
+      shell: bash
+    - run: luarocks-tag-release-action
+      env:
+        INPUT_NAME: ${{ inputs.name }}
+        INPUT_VERSION: ${{ inputs.version }}
+        INPUT_DEPENDENCIES: ${{ inputs.dependencies }}
+        INPUT_LABELS: ${{ inputs.labels }}
+        INPUT_COPY_DIRECTORIES: ${{ inputs.copy-directories }}
+        INPUT_SUMMARY: ${{ inputs.summary }}
+        INPUT_DETAILED_DESCRIPTION: ${{ inputs.detailed_description }}
+        INPUT_BUILD_TYPE: ${{ inputs.build_type }}
+        INPUT_TEMPLATE: ${{ inputs.template }}
+        INPUT_UPLOAD: ${{ inputs.upload }}
+        INPUT_LICENSE: ${{ inputs.license }}
+      shell: bash

bin/luarocks-tag-release-action.lua

@@ -0,0 +1,114 @@
+assert(os.getenv('LUAROCKS_API_KEY'), 'LUAROCKS_API_KEY secret not set')
+
+local function getenv_or_err(env_var)
+  return assert(os.getenv(env_var), env_var .. ' not set.')
+end
+
+local function getenv_or_empty(env_var)
+  return os.getenv(env_var) or ''
+end
+
+local action_path = getenv_or_err('GITHUB_ACTION_PATH')
+
+local github_repo = getenv_or_err('GITHUB_REPOSITORY')
+
+local repo_name = assert(
+  string.match(github_repo, '/(.+)'),
+  [[
+    Could not determine repository name from GITHUB_REPOSITORY.
+    If you see this, please report this as a bug.
+  ]]
+)
+
+local github_server_url = getenv_or_err('GITHUB_SERVER_URL')
+
+---@param str string
+---@return string[] list_arg
+local function parse_list_args(str)
+  local tbl = {}
+  for arg in string.gmatch(str, '[^\r\n]+') do
+    table.insert(tbl, arg)
+  end
+  return tbl
+end
+
+---Filter out directories that don't exist.
+---@param directories string[] List of directories.
+---@return string[] existing_directories
+local function filter_existing_directories(directories)
+  local existing_directories = {}
+  for _, dir in pairs(directories) do
+    if require('lfs').attributes(dir, 'mode') == 'directory' then
+      existing_directories[#existing_directories + 1] = dir
+    end
+  end
+  return existing_directories
+end
+
+---Insert Neovim plugin directories into the `copy_directories` list
+---@param copy_directories string[] List of directories
+local function insert_neovim_plugin_dirs(copy_directories)
+  local neovim_plugin_dirs = {
+    'autoload',
+    'colors',
+    'compiler',
+    'doc',
+    'filetype.lua',
+    'indent',
+    'keymap',
+    'lang',
+    'menu.vim',
+    'parser',
+    'plugin',
+    'queries',
+    'query',
+    'rplugin',
+    'spell',
+    'syntax',
+  }
+  for _, dir in neovim_plugin_dirs do
+    table.insert(copy_directories, dir)
+  end
+end
+
+---@param str_args string The arguments to parse
+---@return string[] copy_directories The directories to copy
+local function parse_copy_directory_args(str_args)
+  local args = parse_list_args(str_args)
+  local copy_directories = {}
+  for _, arg in pairs(args) do
+    if string.match(arg, '{{ neovim.plugin.dirs }}') then
+      insert_neovim_plugin_dirs(copy_directories)
+    else
+      copy_directories[#copy_directories + 1] = arg
+    end
+  end
+  return filter_existing_directories(copy_directories)
+end
+
+local license_input = os.getenv('INPUT_LICENSE')
+local template_input = os.getenv('INPUT_TEMPLATE')
+
+---@type Args
+local args = {
+  github_repo = github_repo,
+  repo_name = repo_name,
+  github_server_url = github_server_url,
+  package_name = getenv_or_err('INPUT_NAME'),
+  package_version = getenv_or_err('INPUT_VERSION'),
+  dependencies = parse_list_args(getenv_or_empty('INPUT_DEPENDENCIES')),
+  labels = parse_list_args(getenv_or_empty('INPUT_LABELS')),
+  copy_directories = parse_copy_directory_args(getenv_or_err('INPUT_COPY_DIRECTORIES')),
+  summary = getenv_or_empty('INPUT_SUMMARY'),
+  detailed_description_lines = parse_list_args(getenv_or_empty('INPUT_DETAILED_DESCRIPTION')),
+  build_type = getenv_or_err('INPUT_BUILD_TYPE'),
+  rockspec_template_file_path = template_input ~= '' and template_input
+    or action_path .. '/resources/rockspec.template',
+  upload = getenv_or_err('INPUT_UPLOAD') == 'true',
+  license = license_input ~= '' and license_input or nil,
+}
+table.insert(args.dependencies, 1, 'lua >= 5.1')
+
+local luarocks_tag_release = require('luarocks-tag-release')
+
+luarocks_tag_release(args)