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# frozen_string_literal: true
module Ci
module Catalog
class ComponentsProject
# ComponentsProject is a type of Catalog Resource which contains one or more
# CI/CD components.
# It is responsible for retrieving the data of a component file, including the content, name, and file path.
TEMPLATE_FILE = 'template.yml'
TEMPLATES_DIR = 'templates'
TEMPLATE_PATH_REGEX = '^templates\/[\w-]+(?:\/template)?\.yml$'
COMPONENTS_LIMIT = 10
ComponentData = Struct.new(:content, :path, keyword_init: true)
def initialize(project, sha = project&.default_branch)
@project = project
@sha = sha
end
def fetch_component_paths(sha, limit: COMPONENTS_LIMIT)
project.repository.search_files_by_regexp(TEMPLATE_PATH_REGEX, sha, limit: limit)
end
def extract_component_name(path)
return unless path.match?(TEMPLATE_PATH_REGEX)
dirname = File.dirname(path)
filename = File.basename(path, '.*')
if dirname == TEMPLATES_DIR
filename
else
File.basename(dirname)
end
end
def extract_inputs(blob)
result = Gitlab::Ci::Config::Yaml::Loader.new(blob).load_uninterpolated_yaml
raise result.error_class, result.error unless result.valid?
result.inputs
end
def fetch_component(component_name)
return ComponentData.new unless component_name.index('/').nil?
path = simple_template_path(component_name)
content = fetch_content(path)
if content.nil?
path = complex_template_path(component_name)
content = fetch_content(path)
end
ComponentData.new(content: content, path: path)
end
private
attr_reader :project, :sha
def fetch_content(component_path)
project.repository.blob_data_at(sha, component_path)
end
# A simple template consists of a single file
def simple_template_path(component_name)
File.join(TEMPLATES_DIR, "#{component_name}.yml")
end
# A complex template is directory-based and may consist of multiple files.
# Given a path like "my-org/sub-group/the-project/templates/component"
# returns the entry point path: "templates/component/template.yml".
def complex_template_path(component_name)
File.join(TEMPLATES_DIR, component_name, TEMPLATE_FILE)
end
end
end
end
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