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# frozen_string_literal: true
# GitHub project
#
# Analyses a remote GitHub repository for license information
#
# Only the root directory of a repository will be scanned because every
# `#load_file(..)` call incurs a separate API request.
autoload :Octokit, 'octokit'
module Licensee
module Projects
class GitHubProject < Licensee::Projects::Project
# If there's any trailing data (e.g. `.git`) this pattern will ignore it:
# we're going to use the API rather than clone the repo.
GITHUB_REPO_PATTERN =
%r{https://github.com/([^/]+/([^/]+(?=\.git)|[^/]+)).*}.freeze
class RepoNotFound < StandardError; end
def initialize(github_url, **args)
@repo = github_url[GITHUB_REPO_PATTERN, 1]
raise ArgumentError, "Not a github URL: #{github_url}" unless @repo
super(**args)
end
attr_reader :repo
private
def files
return @files if defined? @files_from_tree
@files = dir_files
return @files unless @files.empty?
msg = "Could not load GitHub repo #{repo}, it may be private or deleted"
raise RepoNotFound, msg
end
def load_file(file)
client.contents(@repo, path: file[:path],
accept: 'application/vnd.github.v3.raw').to_s
end
def dir_files(path = nil)
path = path.gsub('./', '') if path
files = client.contents(@repo, path: path)
files = files.select { |data| data[:type] == 'file' }
files.each { |data| data[:dir] = File.dirname(data[:path]) }
files.map(&:to_h)
rescue Octokit::NotFound
[]
end
def client
@client ||= Octokit::Client.new access_token: access_token
end
def access_token
ENV['OCTOKIT_ACCESS_TOKEN']
end
end
end
end
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