aaac7fed
 liuqimichale
add
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'use strict';
var path = require('path');
var minimist = require('minimist');
var objectAssign = require('object-assign');
var camelcaseKeys = require('camelcase-keys');
var decamelize = require('decamelize');
var mapObj = require('map-obj');
var trimNewlines = require('trim-newlines');
var redent = require('redent');
var readPkgUp = require('read-pkg-up');
var loudRejection = require('loud-rejection');
var normalizePackageData = require('normalize-package-data');
// get the uncached parent
delete require.cache[__filename];
var parentDir = path.dirname(module.parent.filename);
module.exports = function (opts, minimistOpts) {
loudRejection();
if (Array.isArray(opts) || typeof opts === 'string') {
opts = {help: opts};
}
opts = objectAssign({
pkg: readPkgUp.sync({
cwd: parentDir,
normalize: false
}).pkg,
argv: process.argv.slice(2)
}, opts);
minimistOpts = objectAssign({}, minimistOpts);
minimistOpts.default = mapObj(minimistOpts.default || {}, function (key, value) {
return [decamelize(key, '-'), value];
});
if (Array.isArray(opts.help)) {
opts.help = opts.help.join('\n');
}
var pkg = typeof opts.pkg === 'string' ? require(path.join(parentDir, opts.pkg)) : opts.pkg;
var argv = minimist(opts.argv, minimistOpts);
var help = redent(trimNewlines(opts.help || ''), 2);
normalizePackageData(pkg);
process.title = pkg.bin ? Object.keys(pkg.bin)[0] : pkg.name;
var description = opts.description;
if (!description && description !== false) {
description = pkg.description;
}
help = (description ? '\n ' + description + '\n' : '') + (help ? '\n' + help : '\n');
var showHelp = function (code) {
console.log(help);
process.exit(code || 0);
};
if (argv.version && opts.version !== false) {
console.log(typeof opts.version === 'string' ? opts.version : pkg.version);
process.exit();
}
if (argv.help && opts.help !== false) {
showHelp();
}
var _ = argv._;
delete argv._;
return {
input: _,
flags: camelcaseKeys(argv),
pkg: pkg,
help: help,
showHelp: showHelp
};
};
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