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282
node_modules/coa/lib/completion.js
generated
vendored
282
node_modules/coa/lib/completion.js
generated
vendored
@@ -1,134 +1,176 @@
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// Generated by CoffeeScript 1.6.3
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'use strict';
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const constants = require('constants');
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const fs = require('fs');
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const path = require('path');
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const Q = require('q');
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const shell = require('./shell');
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const escape = shell.escape;
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const unescape = shell.unescape;
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/**
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Most of the code adopted from the npm package shell completion code.
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See https://github.com/isaacs/npm/blob/master/lib/completion.js
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*/
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* Most of the code adopted from the npm package shell completion code.
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* See https://github.com/isaacs/npm/blob/master/lib/completion.js
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*
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* @returns {COA.CoaObject}
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*/
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module.exports = function completion() {
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return this
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.title('Shell completion')
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.helpful()
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.arg()
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.name('raw')
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.title('Completion words')
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.arr()
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.end()
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.act((opts, args) => {
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if(process.platform === 'win32') {
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const e = new Error('shell completion not supported on windows');
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e.code = 'ENOTSUP';
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e.errno = constants.ENOTSUP;
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return this.reject(e);
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}
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var Q, complete, dumpScript, escape, getOpts, unescape;
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// if the COMP_* isn't in the env, then just dump the script
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if((process.env.COMP_CWORD == null)
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|| (process.env.COMP_LINE == null)
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|| (process.env.COMP_POINT == null)) {
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return dumpScript(this._cmd._name);
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}
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Q = require('q');
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console.error('COMP_LINE: %s', process.env.COMP_LINE);
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console.error('COMP_CWORD: %s', process.env.COMP_CWORD);
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console.error('COMP_POINT: %s', process.env.COMP_POINT);
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console.error('args: %j', args.raw);
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escape = require('./shell').escape;
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// completion opts
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opts = getOpts(args.raw);
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unescape = require('./shell').unescape;
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module.exports = function() {
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return this.title('Shell completion').helpful().arg().name('raw').title('Completion words').arr().end().act(function(opts, args) {
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var argv, cmd, e, _ref;
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if (process.platform === 'win32') {
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e = new Error('shell completion not supported on windows');
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e.code = 'ENOTSUP';
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e.errno = require('constants').ENOTSUP;
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return this.reject(e);
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}
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if ((process.env.COMP_CWORD == null) || (process.env.COMP_LINE == null) || (process.env.COMP_POINT == null)) {
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return dumpScript(this._cmd._name);
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}
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console.error('COMP_LINE: %s', process.env.COMP_LINE);
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console.error('COMP_CWORD: %s', process.env.COMP_CWORD);
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console.error('COMP_POINT: %s', process.env.COMP_POINT);
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console.error('args: %j', args.raw);
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opts = getOpts(args.raw);
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_ref = this._cmd._parseCmd(opts.partialWords), cmd = _ref.cmd, argv = _ref.argv;
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return Q.when(complete(cmd, opts), function(compls) {
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console.error('filtered: %j', compls);
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return console.log(compls.map(escape).join('\n'));
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});
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});
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// cmd
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const parsed = this._cmd._parseCmd(opts.partialWords);
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return Q.when(complete(parsed.cmd, parsed.opts), compls => {
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console.error('filtered: %j', compls);
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return console.log(compls.map(escape).join('\n'));
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});
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});
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};
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dumpScript = function(name) {
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var defer, fs, path;
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fs = require('fs');
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path = require('path');
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defer = Q.defer();
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fs.readFile(path.resolve(__dirname, 'completion.sh'), 'utf8', function(err, d) {
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var onError;
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if (err) {
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return defer.reject(err);
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}
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d = d.replace(/{{cmd}}/g, path.basename(name)).replace(/^\#\!.*?\n/, '');
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onError = function(err) {
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if (err.errno === require('constants').EPIPE) {
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function dumpScript(name) {
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const defer = Q.defer();
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fs.readFile(path.resolve(__dirname, 'completion.sh'), 'utf8', function(err, d) {
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if(err) return defer.reject(err);
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d = d.replace(/{{cmd}}/g, path.basename(name)).replace(/^#!.*?\n/, '');
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process.stdout.on('error', onError);
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process.stdout.write(d, () => defer.resolve());
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});
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return defer.promise;
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function onError(err) {
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// Darwin is a real dick sometimes.
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//
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// This is necessary because the "source" or "." program in
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// bash on OS X closes its file argument before reading
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// from it, meaning that you get exactly 1 write, which will
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// work most of the time, and will always raise an EPIPE.
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//
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// Really, one should not be tossing away EPIPE errors, or any
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// errors, so casually. But, without this, `. <(cmd completion)`
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// can never ever work on OS X.
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if(err.errno !== constants.EPIPE) return defer.reject(err);
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process.stdout.removeListener('error', onError);
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return defer.resolve();
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} else {
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return defer.reject(err);
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}
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}
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}
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function getOpts(argv) {
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// get the partial line and partial word, if the point isn't at the end
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// ie, tabbing at: cmd foo b|ar
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const line = process.env.COMP_LINE;
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const w = +process.env.COMP_CWORD;
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const point = +process.env.COMP_POINT;
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const words = argv.map(unescape);
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const word = words[w];
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const partialLine = line.substr(0, point);
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const partialWords = words.slice(0, w);
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// figure out where in that last word the point is
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let partialWord = argv[w] || '';
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let i = partialWord.length;
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while(partialWord.substr(0, i) !== partialLine.substr(-1 * i) && i > 0) i--;
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partialWord = unescape(partialWord.substr(0, i));
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partialWord && partialWords.push(partialWord);
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return {
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line,
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w,
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point,
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words,
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word,
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partialLine,
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partialWords,
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partialWord
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};
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process.stdout.on('error', onError);
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return process.stdout.write(d, function() {
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return defer.resolve();
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});
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});
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return defer.promise;
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};
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}
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getOpts = function(argv) {
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var i, line, partialLine, partialWord, partialWords, point, w, word, words;
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line = process.env.COMP_LINE;
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w = +process.env.COMP_CWORD;
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point = +process.env.COMP_POINT;
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words = argv.map(unescape);
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word = words[w];
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partialLine = line.substr(0, point);
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partialWords = words.slice(0, w);
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partialWord = argv[w] || '';
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i = partialWord.length;
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while (partialWord.substr(0, i) !== partialLine.substr(-1 * i) && i > 0) {
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i--;
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}
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partialWord = unescape(partialWord.substr(0, i));
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if (partialWord) {
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partialWords.push(partialWord);
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}
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return {
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line: line,
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w: w,
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point: point,
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words: words,
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word: word,
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partialLine: partialLine,
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partialWords: partialWords,
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partialWord: partialWord
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};
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};
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function complete(cmd, opts) {
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let optWord, optPrefix,
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compls = [];
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complete = function(cmd, opts) {
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var compls, m, o, opt, optPrefix, optWord;
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compls = [];
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if (opts.partialWord.indexOf('-')) {
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compls = Object.keys(cmd._cmdsByName);
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} else {
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if (m = opts.partialWord.match(/^(--\w[\w-_]*)=(.*)$/)) {
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optWord = m[1];
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optPrefix = optWord + '=';
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} else {
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compls = Object.keys(cmd._optsByKey);
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// Complete on cmds
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if(opts.partialWord.indexOf('-'))
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compls = Object.keys(cmd._cmdsByName);
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// Complete on required opts without '-' in last partial word
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// (if required not already specified)
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//
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// Commented out because of uselessness:
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// -b, --block suggest results in '-' on cmd line;
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// next completion suggest all options, because of '-'
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//.concat Object.keys(cmd._optsByKey).filter (v) -> cmd._optsByKey[v]._req
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else {
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// complete on opt values: --opt=| case
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const m = opts.partialWord.match(/^(--\w[\w-_]*)=(.*)$/);
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if(m) {
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optWord = m[1];
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optPrefix = optWord + '=';
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} else
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// complete on opts
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// don't complete on opts in case of --opt=val completion
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// TODO: don't complete on opts in case of unknown arg after commands
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// TODO: complete only on opts with arr() or not already used
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// TODO: complete only on full opts?
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compls = Object.keys(cmd._optsByKey);
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}
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}
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if (!(o = opts.partialWords[opts.w - 1]).indexOf('-')) {
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optWord = o;
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}
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if (optWord && (opt = cmd._optsByKey[optWord])) {
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if (!opt._flag && opt._comp) {
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compls = Q.join(compls, Q.when(opt._comp(opts), function(c, o) {
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return c.concat(o.map(function(v) {
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return (optPrefix || '') + v;
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}));
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}));
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}
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}
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if (cmd._comp) {
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compls = Q.join(compls, Q.when(cmd._comp(opts)), function(c, o) {
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return c.concat(o);
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// complete on opt values: next arg case
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opts.partialWords[opts.w - 1].indexOf('-') || (optWord = opts.partialWords[opts.w - 1]);
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// complete on opt values: completion
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let opt;
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optWord
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&& (opt = cmd._optsByKey[optWord])
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&& !opt._flag
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&& opt._comp
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&& (compls = Q.join(compls,
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Q.when(opt._comp(opts),
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(c, o) => c.concat(o.map(v => (optPrefix || '') + v)))));
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// TODO: complete on args values (context aware, custom completion?)
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// custom completion on cmds
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cmd._comp && (compls = Q.join(compls, Q.when(cmd._comp(opts)), (c, o) => c.concat(o)));
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// TODO: context aware custom completion on cmds, opts and args
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// (can depend on already entered values, especially options)
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return Q.when(compls, complitions => {
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console.error('partialWord: %s', opts.partialWord);
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console.error('compls: %j', complitions);
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return compls.filter(c => c.indexOf(opts.partialWord) === 0);
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});
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}
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return Q.when(compls, function(compls) {
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console.error('partialWord: %s', opts.partialWord);
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console.error('compls: %j', compls);
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return compls.filter(function(c) {
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return c.indexOf(opts.partialWord) === 0;
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});
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});
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};
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}
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