completion.js
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// Generated by CoffeeScript 1.6.3
/**
Most of the code adopted from the npm package shell completion code.
See https://github.com/isaacs/npm/blob/master/lib/completion.js
*/
var Q, complete, dumpScript, escape, getOpts, unescape;
Q = require('q');
escape = require('./shell').escape;
unescape = require('./shell').unescape;
module.exports = function() {
return this.title('Shell completion').helpful().arg().name('raw').title('Completion words').arr().end().act(function(opts, args) {
var argv, cmd, e, _ref;
if (process.platform === 'win32') {
e = new Error('shell completion not supported on windows');
e.code = 'ENOTSUP';
e.errno = require('constants').ENOTSUP;
return this.reject(e);
}
if ((process.env.COMP_CWORD == null) || (process.env.COMP_LINE == null) || (process.env.COMP_POINT == null)) {
return dumpScript(this._cmd._name);
}
console.error('COMP_LINE: %s', process.env.COMP_LINE);
console.error('COMP_CWORD: %s', process.env.COMP_CWORD);
console.error('COMP_POINT: %s', process.env.COMP_POINT);
console.error('args: %j', args.raw);
opts = getOpts(args.raw);
_ref = this._cmd._parseCmd(opts.partialWords), cmd = _ref.cmd, argv = _ref.argv;
return Q.when(complete(cmd, opts), function(compls) {
console.error('filtered: %j', compls);
return console.log(compls.map(escape).join('\n'));
});
});
};
dumpScript = function(name) {
var defer, fs, path;
fs = require('fs');
path = require('path');
defer = Q.defer();
fs.readFile(path.resolve(__dirname, 'completion.sh'), 'utf8', function(err, d) {
var onError;
if (err) {
return defer.reject(err);
}
d = d.replace(/{{cmd}}/g, path.basename(name)).replace(/^\#\!.*?\n/, '');
onError = function(err) {
if (err.errno === require('constants').EPIPE) {
process.stdout.removeListener('error', onError);
return defer.resolve();
} else {
return defer.reject(err);
}
};
process.stdout.on('error', onError);
return process.stdout.write(d, function() {
return defer.resolve();
});
});
return defer.promise;
};
getOpts = function(argv) {
var i, line, partialLine, partialWord, partialWords, point, w, word, words;
line = process.env.COMP_LINE;
w = +process.env.COMP_CWORD;
point = +process.env.COMP_POINT;
words = argv.map(unescape);
word = words[w];
partialLine = line.substr(0, point);
partialWords = words.slice(0, w);
partialWord = argv[w] || '';
i = partialWord.length;
while (partialWord.substr(0, i) !== partialLine.substr(-1 * i) && i > 0) {
i--;
}
partialWord = unescape(partialWord.substr(0, i));
if (partialWord) {
partialWords.push(partialWord);
}
return {
line: line,
w: w,
point: point,
words: words,
word: word,
partialLine: partialLine,
partialWords: partialWords,
partialWord: partialWord
};
};
complete = function(cmd, opts) {
var compls, m, o, opt, optPrefix, optWord;
compls = [];
if (opts.partialWord.indexOf('-')) {
compls = Object.keys(cmd._cmdsByName);
} else {
if (m = opts.partialWord.match(/^(--\w[\w-_]*)=(.*)$/)) {
optWord = m[1];
optPrefix = optWord + '=';
} else {
compls = Object.keys(cmd._optsByKey);
}
}
if (!(o = opts.partialWords[opts.w - 1]).indexOf('-')) {
optWord = o;
}
if (optWord && (opt = cmd._optsByKey[optWord])) {
if (!opt._flag && opt._comp) {
compls = Q.join(compls, Q.when(opt._comp(opts), function(c, o) {
return c.concat(o.map(function(v) {
return (optPrefix || '') + v;
}));
}));
}
}
if (cmd._comp) {
compls = Q.join(compls, Q.when(cmd._comp(opts)), function(c, o) {
return c.concat(o);
});
}
return Q.when(compls, function(compls) {
console.error('partialWord: %s', opts.partialWord);
console.error('compls: %j', compls);
return compls.filter(function(c) {
return c.indexOf(opts.partialWord) === 0;
});
});
};