233 lines
8.7 KiB
JavaScript
233 lines
8.7 KiB
JavaScript
(function(){
|
|
var BANNER, CoffeeScript, SWITCHES, _a, compile_options, compile_script, compile_scripts, compile_stdio, exec, fs, lint, option_parser, options, optparse, parse_options, path, print_tokens, sources, spawn, usage, version, watch_scripts, write_js;
|
|
// The `coffee` utility. Handles command-line compilation of CoffeeScript
|
|
// into various forms: saved into `.js` files or printed to stdout, piped to
|
|
// [JSLint](http://javascriptlint.com/) or recompiled every time the source is
|
|
// saved, printed as a token stream or as the syntax tree, or launch an
|
|
// interactive REPL.
|
|
// External dependencies.
|
|
fs = require('fs');
|
|
path = require('path');
|
|
optparse = require('./optparse');
|
|
CoffeeScript = require('./coffee-script');
|
|
_a = require('child_process');
|
|
spawn = _a.spawn;
|
|
exec = _a.exec;
|
|
// The help banner that is printed when `coffee` is called without arguments.
|
|
BANNER = 'coffee compiles CoffeeScript source files into JavaScript.\n\nUsage:\n coffee path/to/script.coffee';
|
|
// The list of all the valid option flags that `coffee` knows how to handle.
|
|
SWITCHES = [['-c', '--compile', 'compile to JavaScript and save as .js files'], ['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-o', '--output [DIR]', 'set the directory for compiled JavaScript'], ['-w', '--watch', 'watch scripts for changes, and recompile'], ['-p', '--print', 'print the compiled JavaScript to stdout'], ['-l', '--lint', 'pipe the compiled JavaScript through JSLint'], ['-s', '--stdio', 'listen for and compile scripts over stdio'], ['-e', '--eval', 'compile a string from the command line'], ['--no-wrap', 'compile without the top-level function wrapper'], ['-t', '--tokens', 'print the tokens that the lexer produces'], ['-n', '--nodes', 'print the parse tree that Jison produces'], ['-v', '--version', 'display CoffeeScript version'], ['-h', '--help', 'display this help message']];
|
|
// Top-level objects shared by all the functions.
|
|
options = {};
|
|
sources = [];
|
|
option_parser = null;
|
|
// Run `coffee` by parsing passed options and determining what action to take.
|
|
// Many flags cause us to divert before compiling anything. Flags passed after
|
|
// `--` will be passed verbatim to your script as arguments in `process.argv`
|
|
exports.run = function run() {
|
|
var flags, separator;
|
|
parse_options();
|
|
if (options.help) {
|
|
return usage();
|
|
}
|
|
if (options.version) {
|
|
return version();
|
|
}
|
|
if (options.interactive) {
|
|
return require('./repl');
|
|
}
|
|
if (options.stdio) {
|
|
return compile_stdio();
|
|
}
|
|
if (options.eval) {
|
|
return compile_script('console', sources[0]);
|
|
}
|
|
if (!(sources.length)) {
|
|
return usage();
|
|
}
|
|
separator = sources.indexOf('--');
|
|
flags = [];
|
|
if (separator >= 0) {
|
|
flags = sources.slice((separator + 1), sources.length);
|
|
sources = sources.slice(0, separator);
|
|
}
|
|
process.ARGV = (process.argv = flags);
|
|
if (options.watch) {
|
|
watch_scripts();
|
|
}
|
|
return compile_scripts();
|
|
};
|
|
// Asynchronously read in each CoffeeScript in a list of source files and
|
|
// compile them.
|
|
compile_scripts = function compile_scripts() {
|
|
var compile, run;
|
|
compile = function compile(source) {
|
|
return path.exists(source, function(exists) {
|
|
if (!(exists)) {
|
|
throw new Error(("File not found: " + source));
|
|
}
|
|
return fs.readFile(source, function(err, code) {
|
|
return compile_script(source, code);
|
|
});
|
|
});
|
|
};
|
|
run = function run() {
|
|
var _b, _c, _d, _e, source;
|
|
_b = []; _d = sources;
|
|
for (_c = 0, _e = _d.length; _c < _e; _c++) {
|
|
source = _d[_c];
|
|
_b.push(compile(source));
|
|
}
|
|
return _b;
|
|
};
|
|
if (!(options.output && options.compile)) {
|
|
return run();
|
|
}
|
|
return exec(("mkdir -p " + options.output), run);
|
|
};
|
|
// Compile a single source script, containing the given code, according to the
|
|
// requested options. Both compile_scripts and watch_scripts share this method
|
|
// in common. If evaluating the script directly sets `__filename`, `__dirname`
|
|
// and `module.filename` to be correct relative to the script's path.
|
|
compile_script = function compile_script(source, code) {
|
|
var code_opts, js, o;
|
|
o = options;
|
|
code_opts = compile_options(source);
|
|
try {
|
|
if (o.tokens) {
|
|
return print_tokens(CoffeeScript.tokens(code));
|
|
} else if (o.nodes) {
|
|
return puts(CoffeeScript.nodes(code).toString());
|
|
} else if (o.run) {
|
|
return CoffeeScript.run(code, code_opts);
|
|
} else {
|
|
js = CoffeeScript.compile(code, code_opts);
|
|
if (o.print) {
|
|
return print(js);
|
|
} else if (o.compile) {
|
|
return write_js(source, js);
|
|
} else if (o.lint) {
|
|
return lint(js);
|
|
}
|
|
}
|
|
} catch (err) {
|
|
if (o.watch) {
|
|
return puts(err.message);
|
|
} else {
|
|
throw err;
|
|
}
|
|
}
|
|
};
|
|
// Attach the appropriate listeners to compile scripts incoming over **stdin**,
|
|
// and write them back to **stdout**.
|
|
compile_stdio = function compile_stdio() {
|
|
var code, stdin;
|
|
code = '';
|
|
stdin = process.openStdin();
|
|
stdin.addListener('data', function(buffer) {
|
|
if (buffer) {
|
|
return code += buffer.toString();
|
|
}
|
|
});
|
|
return stdin.addListener('end', function() {
|
|
return compile_script('stdio', code);
|
|
});
|
|
};
|
|
// Watch a list of source CoffeeScript files using `fs.watchFile`, recompiling
|
|
// them every time the files are updated. May be used in combination with other
|
|
// options, such as `--lint` or `--print`.
|
|
watch_scripts = function watch_scripts() {
|
|
var _b, _c, _d, _e, source, watch;
|
|
watch = function watch(source) {
|
|
return fs.watchFile(source, {
|
|
persistent: true,
|
|
interval: 500
|
|
}, function(curr, prev) {
|
|
if (curr.mtime.getTime() === prev.mtime.getTime()) {
|
|
return null;
|
|
}
|
|
return fs.readFile(source, function(err, code) {
|
|
return compile_script(source, code);
|
|
});
|
|
});
|
|
};
|
|
_b = []; _d = sources;
|
|
for (_c = 0, _e = _d.length; _c < _e; _c++) {
|
|
source = _d[_c];
|
|
_b.push(watch(source));
|
|
}
|
|
return _b;
|
|
};
|
|
// Write out a JavaScript source file with the compiled code. By default, files
|
|
// are written out in `cwd` as `.js` files with the same name, but the output
|
|
// directory can be customized with `--output`.
|
|
write_js = function write_js(source, js) {
|
|
var dir, filename, js_path;
|
|
filename = path.basename(source, path.extname(source)) + '.js';
|
|
dir = options.output || path.dirname(source);
|
|
js_path = path.join(dir, filename);
|
|
return fs.writeFile(js_path, js);
|
|
};
|
|
// Pipe compiled JS through JSLint (requires a working `jsl` command), printing
|
|
// any errors or warnings that arise.
|
|
lint = function lint(js) {
|
|
var jsl, print_it;
|
|
print_it = function print_it(buffer) {
|
|
return puts(buffer.toString());
|
|
};
|
|
jsl = spawn('jsl', ['-nologo', '-stdin']);
|
|
jsl.stdout.addListener('data', print_it);
|
|
jsl.stderr.addListener('data', print_it);
|
|
jsl.stdin.write(js);
|
|
return jsl.stdin.end();
|
|
};
|
|
// Pretty-print a stream of tokens.
|
|
print_tokens = function print_tokens(tokens) {
|
|
var _b, _c, _d, _e, _f, strings, tag, token, value;
|
|
strings = (function() {
|
|
_b = []; _d = tokens;
|
|
for (_c = 0, _e = _d.length; _c < _e; _c++) {
|
|
token = _d[_c];
|
|
_b.push((function() {
|
|
_f = [token[0], token[1].toString().replace(/\n/, '\\n')];
|
|
tag = _f[0];
|
|
value = _f[1];
|
|
return "[" + tag + " " + value + "]";
|
|
})());
|
|
}
|
|
return _b;
|
|
})();
|
|
return puts(strings.join(' '));
|
|
};
|
|
// Use the [OptionParser module](optparse.html) to extract all options from
|
|
// `process.argv` that are specified in `SWITCHES`.
|
|
parse_options = function parse_options() {
|
|
var o;
|
|
option_parser = new optparse.OptionParser(SWITCHES, BANNER);
|
|
o = (options = option_parser.parse(process.argv));
|
|
options.run = !(o.compile || o.print || o.lint);
|
|
options.print = !!(o.print || (o.eval || o.stdio && o.compile));
|
|
sources = options.arguments.slice(2, options.arguments.length);
|
|
return sources;
|
|
};
|
|
// The compile-time options to pass to the CoffeeScript compiler.
|
|
compile_options = function compile_options(source) {
|
|
var o;
|
|
o = {
|
|
source: source
|
|
};
|
|
o['no_wrap'] = options['no-wrap'];
|
|
return o;
|
|
};
|
|
// Print the `--help` usage message and exit.
|
|
usage = function usage() {
|
|
puts(option_parser.help());
|
|
return process.exit(0);
|
|
};
|
|
// Print the `--version` message and exit.
|
|
version = function version() {
|
|
puts(("CoffeeScript version " + (CoffeeScript.VERSION)));
|
|
return process.exit(0);
|
|
};
|
|
})();
|