lib/pronto/tslint_npm.rb
require 'pronto'
require 'shellwords'
module Pronto
class TSLintNpm < Runner
CONFIG_FILE = '.pronto_tslint_npm.yml'.freeze
CONFIG_KEYS = %w(tslint_executable files_to_lint).freeze
attr_writer :tslint_executable
def tslint_executable
@tslint_executable || 'tslint'.freeze
end
def files_to_lint
@files_to_lint || /(.*\.ts)$/
end
def files_to_lint=(regexp)
@files_to_lint = regexp.is_a?(Regexp) && regexp || Regexp.new(regexp)
end
def read_config
config_file = File.join(repo_path, CONFIG_FILE)
return unless File.exist?(config_file)
config = YAML.load_file(config_file)
CONFIG_KEYS.each do |config_key|
next unless config[config_key]
send("#{config_key}=", config[config_key])
end
end
def run
return [] if !@patches || @patches.count.zero?
read_config
@patches
.select { |patch| patch.additions > 0 }
.select { |patch| ts_file?(patch.new_file_full_path) }
.map { |patch| inspect(patch) }
.flatten.compact
end
# private
def repo_path
@_repo_path ||= @patches.first.repo.path
end
def inspect(patch)
offences = run_tslint(patch)
clean_up_tslint_output(offences)
.map do |offence|
patch
.added_lines
.select { |line| line.new_lineno == offence[:line] }
.map { |line| new_message(offence[:msg], line) }
end
end
def new_message(offence, line)
path = line.patch.delta.new_file[:path]
level = :warning
Message.new(path, line, level, offence, nil, self.class)
end
def ts_file?(path)
!!(files_to_lint =~ path.to_s)
end
def run_tslint(patch)
Dir.chdir(repo_path) do
escaped_file_path = Shellwords.escape(patch.new_file_full_path.to_s)
JSON.parse(
`#{tslint_executable} #{escaped_file_path} -t json`
)
end
end
def clean_up_tslint_output(output)
# 1. Filter out offences without a warning or error
# 2. Get the messages for that file
# 3. Ignore errors without a line number for now
return [] unless output.count > 0
output.map do |offence|
{
msg: offence['failure'],
line: offence['startPosition']['line'] + 1
}
end
end
end
end