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fs = require 'fs'
path = require 'path'
{extend} = require './lib/coffee-script/helpers'
CoffeeScript = require './lib/coffee-script'
{spawn, exec} = require 'child_process'
# ANSI Terminal Colors.
enableColors = no
unless process.platform is 'win32'
enableColors = not process.env.NODE_DISABLE_COLORS
bold = red = green = reset = ''
if enableColors
bold = '\033[0;1m'
red = '\033[0;31m'
green = '\033[0;32m'
reset = '\033[0m'
# Built file header.
header = """
* CoffeeScript Compiler v#{CoffeeScript.VERSION}
* Copyright 2011, Jeremy Ashkenas
* Released under the MIT License
sources = [
'coffee-script', 'grammar', 'helpers'
'lexer', 'nodes', 'rewriter', 'scope'
].map (filename) -> "src/#{filename}.coffee"
# Run a CoffeeScript through our node/coffee interpreter.
run = (args, cb) ->
proc = spawn 'bin/coffee', args
proc.stderr.on 'data', (buffer) -> console.log buffer.toString()
proc.on 'exit', (status) ->
process.exit(1) if status != 0
cb() if typeof cb is 'function'
# Log a message with a color.
log = (message, color, explanation) ->
console.log color + message + reset + ' ' + (explanation or '')
option '-p', '--prefix [DIR]', 'set the installation prefix for `cake install`'
task 'install', 'install CoffeeScript into /usr/local (or --prefix)', (options) ->
base = options.prefix or '/usr/local'
lib = "#{base}/lib/coffee-script"
bin = "#{base}/bin"
node = "~/.node_libraries/coffee-script"
console.log "Installing CoffeeScript to #{lib}"
console.log "Linking to #{node}"
console.log "Linking 'coffee' to #{bin}/coffee"
"mkdir -p #{lib} #{bin}"
"cp -rf bin lib LICENSE README package.json src #{lib}"
"ln -sfn #{lib}/bin/coffee #{bin}/coffee"
"ln -sfn #{lib}/bin/cake #{bin}/cake"
"mkdir -p ~/.node_libraries"
"ln -sfn #{lib}/lib/coffee-script #{node}"
].join(' && '), (err, stdout, stderr) ->
if err then console.log stderr.trim() else log 'done', green
task 'build', 'build the CoffeeScript language from source', build = (cb) ->
files = fs.readdirSync 'src'
files = ('src/' + file for file in files when file.match(/\.coffee$/))
run ['-c', '-o', 'lib/coffee-script'].concat(files), cb
task 'build:full', 'rebuild the source twice, and run the tests', ->
build ->
build ->
csPath = './lib/coffee-script'
delete require.cache[require.resolve csPath]
unless runTests require csPath
process.exit 1
task 'build:parser', 'rebuild the Jison parser (run build first)', ->
extend global, require('util')
require 'jison'
parser = require('./lib/coffee-script/grammar').parser
fs.writeFile 'lib/coffee-script/parser.js', parser.generate()
task 'build:ultraviolet', 'build and install the Ultraviolet syntax highlighter', ->
exec 'plist2syntax ../coffee-script-tmbundle/Syntaxes/CoffeeScript.tmLanguage', (err) ->
throw err if err
exec 'sudo mv coffeescript.yaml /usr/local/lib/ruby/gems/1.8/gems/ultraviolet-0.10.2/syntax/coffeescript.syntax'
task 'build:browser', 'rebuild the merged script for inclusion in the browser', ->
code = ''
for name in ['helpers', 'rewriter', 'lexer', 'parser', 'scope', 'nodes', 'coffee-script', 'browser']
code += """
require['./#{name}'] = new function() {
var exports = this;
#{fs.readFileSync "lib/coffee-script/#{name}.js"}
code = """
(function(root) {
var CoffeeScript = function() {
function require(path){ return require[path]; }
return require['./coffee-script']
if(typeof define === 'function' && define.amd) {
define(function() { return CoffeeScript });
} else { root.CoffeeScript = CoffeeScript }
unless process.env.MINIFY is 'false'
{parser, uglify} = require 'uglify-js'
code = uglify.gen_code uglify.ast_squeeze uglify.ast_mangle parser.parse code
fs.writeFileSync 'extras/coffee-script.js', header + '\n' + code
console.log "built ... running browser tests:"
invoke 'test:browser'
task 'doc:site', 'watch and continually rebuild the documentation for the website', ->
exec 'rake doc', (err) ->
throw err if err
task 'doc:source', 'rebuild the internal documentation', ->
exec 'docco src/*.coffee && cp -rf docs documentation && rm -r docs', (err) ->
throw err if err
task 'doc:underscore', 'rebuild the documentation page', ->
exec 'docco examples/ && cp -rf docs documentation && rm -r docs', (err) ->
throw err if err
task 'bench', 'quick benchmark of compilation time', ->
{Rewriter} = require './lib/coffee-script/rewriter'
co = -> fs.readFileSync name).join '\n'
fmt = (ms) -> " #{bold}#{ " #{ms}".slice -4 }#{reset} ms"
total = 0
now =
time = -> total += ms = -(now - now =; fmt ms
tokens = CoffeeScript.tokens co, rewrite: false
console.log "Lex #{time()} (#{tokens.length} tokens)"
tokens = new Rewriter().rewrite tokens
console.log "Rewrite#{time()} (#{tokens.length} tokens)"
nodes = CoffeeScript.nodes tokens
console.log "Parse #{time()}"
js = nodes.compile bare: true
console.log "Compile#{time()} (#{js.length} chars)"
console.log "total #{ fmt total }"
task 'loc', 'count the lines of source code in the CoffeeScript compiler', ->
exec "cat #{ sources.join(' ') } | grep -v '^\\( *#\\|\\s*$\\)' | wc -l | tr -s ' '", (err, stdout) ->
console.log stdout.trim()
# Run the CoffeeScript test suite.
runTests = (CoffeeScript) ->
startTime =
currentFile = null
passedTests = 0
failures = []
global[name] = func for name, func of require 'assert'
# Convenience aliases.
global.CoffeeScript = CoffeeScript
# Our test helper function for delimiting different test cases.
global.test = (description, fn) ->
fn.test = {description, currentFile}
catch e
e.description = description if description?
e.source = fn.toString() if fn.toString?
failures.push filename: currentFile, error: e
# See
egal = (a, b) ->
if a is b
a isnt 0 or 1/a is 1/b
a isnt a and b isnt b
# A recursive functional equivalence helper; uses egal for testing equivalence.
arrayEgal = (a, b) ->
if egal a, b then yes
else if a instanceof Array and b instanceof Array
return no unless a.length is b.length
return no for el, idx in a when not arrayEgal el, b[idx]
global.eq = (a, b, msg) -> ok egal(a, b), msg
global.arrayEq = (a, b, msg) -> ok arrayEgal(a,b), msg
# When all the tests have run, collect and print errors.
# If a stacktrace is available, output the compiled function source.
process.on 'exit', ->
time = (( - startTime) / 1000).toFixed(2)
message = "passed #{passedTests} tests in #{time} seconds#{reset}"
return log(message, green) unless failures.length
log "failed #{failures.length} and #{message}", red
for fail in failures
{error, filename} = fail
jsFilename = filename.replace(/\.coffee$/,'.js')
match = error.stack?.match(new RegExp(fail.file+":(\\d+):(\\d+)"))
match = error.stack?.match(/on line (\d+):/) unless match
[match, line, col] = match if match
console.log ''
log " #{error.description}", red if error.description
log " #{error.stack}", red
log " #{jsFilename}: line #{line ? 'unknown'}, column #{col ? 'unknown'}", red
console.log " #{error.source}" if error.source
# Run every test in the `test` folder, recording failures.
files = fs.readdirSync 'test'
for file in files when file.match /\.coffee$/i
currentFile = filename = path.join 'test', file
code = fs.readFileSync filename
try code.toString(), {filename}
catch error
failures.push {filename, error}
return !failures.length
task 'test', 'run the CoffeeScript language test suite', ->
runTests CoffeeScript
task 'test:browser', 'run the test suite against the merged browser script', ->
source = fs.readFileSync 'extras/coffee-script.js', 'utf-8'
result = {}
global.testingBrowser = yes
(-> eval source).call result
runTests result.CoffeeScript
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