babel/bin/6to5/index.js

98 lines
2.7 KiB
JavaScript
Executable File

#!/usr/bin/env node
var commander = require("commander");
var sourceMap = require("source-map");
var transform = require("../../lib/6to5/transform");
var chokidar = require("chokidar");
var mkdirp = require("mkdirp");
var util2 = require("../../lib/6to5/util");
var util = require("./util");
var path = require("path");
var fs = require("fs");
var _ = require("lodash");
commander.option("-t, --source-maps-inline", "Append sourceMappingURL comment to bottom of code");
commander.option("-s, --source-maps", "Save source map alongside the compiled code");
commander.option("-f, --filename [filename]", "Filename to use when reading from stdin - this will be used in source-maps, errors etc [stdin]", "stdin");
commander.option("-w, --watch", "Recompile files on changes");
commander.option("-w, --whitelist [whitelist]", "Whitelist of transformers to ONLY use", util2.list);
commander.option("-b, --blacklist [blacklist]", "Blacklist of transformers to NOT use", util2.list);
commander.option("-o, --out-file [out]", "Compile all input files into a single file");
commander.option("-d, --out-dir [out]", "Compile an input directory of modules into an output directory");
commander.on("--help", function(){
console.log(" Transformers:");
console.log();
_.each(_.keys(transform.transformers).sort(), function (key) {
if (key[0] === "_") return;
console.log(" - " + key);
});
console.log();
});
var pkg = require("../../package.json");
commander.version(pkg.version);
commander.usage("[options] <files ...>");
commander.parse(process.argv);
//
var errors = [];
var filenames = commander.args;
_.each(filenames, function (filename) {
if (!fs.existsSync(filename)) {
errors.push(filename + " doesn't exist");
}
});
if (commander.outDir && !filenames.length) {
errors.push("filenames required for --out-dir");
}
if (commander.outFile && commander.outDir) {
errors.push("cannot have --out-file and --out-dir");
}
if (commander.watch) {
if (!commander.outFile && !commander.outDir) {
errors.push("--watch requires --out-file or --out-dir");
}
if (!filenames.length) {
errors.push("--watch requires filenames");
}
}
if (commander.sourceMaps) {
if (!commander.outFile && !commander.outDir) {
errors.push("--source-maps requires --out-file or --out-dir");
}
}
if (errors.length) {
console.error(errors.join(". "));
process.exit(2);
}
//
exports.opts = {
sourceMapName: commander.outFile,
blacklist: commander.blacklist,
whitelist: commander.whitelist,
sourceMap: commander.sourceMaps || commander.sourceMapsInline
};
var fn;
if (commander.outDir) {
fn = require("./dir");
} else {
fn = require("./file");
}
fn(commander, filenames, exports.opts);