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- <span class="strong">11.27% </span>
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- <span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
-
- const constants = require('constants');
- const fs = require('fs');
- const path = require('path');
-
- const Q = require('q');
-
- const shell = require('./shell');
- const escape = shell.escape;
- const unescape = shell.unescape;
-
- /**
- * Most of the code adopted from the npm package shell completion code.
- * See https://github.com/isaacs/npm/blob/master/lib/completion.js
- *
- * @returns {COA.CoaObject}
- */
- module.exports = function <span class="fstat-no" title="function not covered" >completion(</span>) {
- <span class="cstat-no" title="statement not covered" > return this</span>
- .title('Shell completion')
- .helpful()
- .arg()
- .name('raw')
- .title('Completion words')
- .arr()
- .end()
- .act(<span class="fstat-no" title="function not covered" >(o</span>pts, args) => {
- <span class="cstat-no" title="statement not covered" > if(process.platform === 'win32') {</span>
- const e = <span class="cstat-no" title="statement not covered" >new Error('shell completion not supported on windows');</span>
- <span class="cstat-no" title="statement not covered" > e.code = 'ENOTSUP';</span>
- <span class="cstat-no" title="statement not covered" > e.errno = constants.ENOTSUP;</span>
- <span class="cstat-no" title="statement not covered" > return this.reject(e);</span>
- }
-
- // if the COMP_* isn't in the env, then just dump the script
- <span class="cstat-no" title="statement not covered" > if((process.env.COMP_CWORD == null)</span>
- || (process.env.COMP_LINE == null)
- || (process.env.COMP_POINT == null)) {
- <span class="cstat-no" title="statement not covered" > return dumpScript(this._cmd._name);</span>
- }
-
- <span class="cstat-no" title="statement not covered" > console.error('COMP_LINE: %s', process.env.COMP_LINE);</span>
- <span class="cstat-no" title="statement not covered" > console.error('COMP_CWORD: %s', process.env.COMP_CWORD);</span>
- <span class="cstat-no" title="statement not covered" > console.error('COMP_POINT: %s', process.env.COMP_POINT);</span>
- <span class="cstat-no" title="statement not covered" > console.error('args: %j', args.raw);</span>
-
- // completion opts
- <span class="cstat-no" title="statement not covered" > opts = getOpts(args.raw);</span>
-
- // cmd
- const parsed = <span class="cstat-no" title="statement not covered" >this._cmd._parseCmd(opts.partialWords);</span>
- <span class="cstat-no" title="statement not covered" > return Q.when(complete(parsed.cmd, parsed.opts), <span class="fstat-no" title="function not covered" >(c</span>ompls) => {</span>
- <span class="cstat-no" title="statement not covered" > console.error('filtered: %j', compls);</span>
- <span class="cstat-no" title="statement not covered" > return console.log(compls.map(escape).join('\n'));</span>
- });
- });
- };
-
- function <span class="fstat-no" title="function not covered" >dumpScript(</span>name) {
- const defer = <span class="cstat-no" title="statement not covered" >Q.defer();</span>
-
- <span class="cstat-no" title="statement not covered" > fs.readFile(path.resolve(__dirname, 'completion.sh'), 'utf8', <span class="fstat-no" title="function not covered" >fu</span>nction(err, d) {</span>
- <span class="cstat-no" title="statement not covered" > if(err) <span class="cstat-no" title="statement not covered" >return defer.reject(err);</span></span>
- <span class="cstat-no" title="statement not covered" > d = d.replace(/{{cmd}}/g, path.basename(name)).replace(/^\#\!.*?\n/, '');</span>
-
- <span class="cstat-no" title="statement not covered" > process.stdout.on('error', onError);</span>
- <span class="cstat-no" title="statement not covered" > process.stdout.write(d, <span class="fstat-no" title="function not covered" >()</span> => <span class="cstat-no" title="statement not covered" >defer.resolve())</span>;</span>
- });
-
- <span class="cstat-no" title="statement not covered" > return defer.promise;</span>
-
- function <span class="fstat-no" title="function not covered" >onError(</span>err) {
- // Darwin is a real dick sometimes.
- //
- // This is necessary because the "source" or "." program in
- // bash on OS X closes its file argument before reading
- // from it, meaning that you get exactly 1 write, which will
- // work most of the time, and will always raise an EPIPE.
- //
- // Really, one should not be tossing away EPIPE errors, or any
- // errors, so casually. But, without this, `. <(cmd completion)`
- // can never ever work on OS X.
- <span class="cstat-no" title="statement not covered" > if(err.errno !== constants.EPIPE) <span class="cstat-no" title="statement not covered" >return defer.reject(err);</span></span>
- <span class="cstat-no" title="statement not covered" > process.stdout.removeListener('error', onError);</span>
- <span class="cstat-no" title="statement not covered" > return defer.resolve();</span>
- }
- }
-
- function <span class="fstat-no" title="function not covered" >getOpts(</span>argv) {
- // get the partial line and partial word, if the point isn't at the end
- // ie, tabbing at: cmd foo b|ar
- const line = <span class="cstat-no" title="statement not covered" >process.env.COMP_LINE;</span>
- const w = <span class="cstat-no" title="statement not covered" >+process.env.COMP_CWORD;</span>
- const point = <span class="cstat-no" title="statement not covered" >+process.env.COMP_POINT;</span>
- const words = <span class="cstat-no" title="statement not covered" >argv.map(unescape);</span>
- const word = <span class="cstat-no" title="statement not covered" >words[w];</span>
- const partialLine = <span class="cstat-no" title="statement not covered" >line.substr(0, point);</span>
- const partialWords = <span class="cstat-no" title="statement not covered" >words.slice(0, w);</span>
-
- // figure out where in that last word the point is
- let partialWord = <span class="cstat-no" title="statement not covered" >argv[w] || '';</span>
- let i = <span class="cstat-no" title="statement not covered" >partialWord.length;</span>
- <span class="cstat-no" title="statement not covered" > while(partialWord.substr(0, i) !== partialLine.substr(-1 * i) && i > 0) <span class="cstat-no" title="statement not covered" >i--;</span></span>
-
- <span class="cstat-no" title="statement not covered" > partialWord = unescape(partialWord.substr(0, i));</span>
- <span class="cstat-no" title="statement not covered" > partialWord && partialWords.push(partialWord);</span>
-
- <span class="cstat-no" title="statement not covered" > return {</span>
- line,
- w,
- point,
- words,
- word,
- partialLine,
- partialWords,
- partialWord
- };
- }
-
- function <span class="fstat-no" title="function not covered" >complete(</span>cmd, opts) {
- let optWord, optPrefix,
- compls = <span class="cstat-no" title="statement not covered" >[];</span>
-
- // Complete on cmds
- <span class="cstat-no" title="statement not covered" > if(opts.partialWord.indexOf('-'))</span>
- <span class="cstat-no" title="statement not covered" > compls = Object.keys(cmd._cmdsByName);</span>
- // Complete on required opts without '-' in last partial word
- // (if required not already specified)
- //
- // Commented out because of uselessness:
- // -b, --block suggest results in '-' on cmd line;
- // next completion suggest all options, because of '-'
- //.concat Object.keys(cmd._optsByKey).filter (v) -> cmd._optsByKey[v]._req
- else {
- // complete on opt values: --opt=| case
- const m = <span class="cstat-no" title="statement not covered" >opts.partialWord.match(/^(--\w[\w-_]*)=(.*)$/);</span>
- <span class="cstat-no" title="statement not covered" > if(m) {</span>
- <span class="cstat-no" title="statement not covered" > optWord = m[1];</span>
- <span class="cstat-no" title="statement not covered" > optPrefix = optWord + '=';</span>
- } else
- // complete on opts
- // don't complete on opts in case of --opt=val completion
- // TODO: don't complete on opts in case of unknown arg after commands
- // TODO: complete only on opts with arr() or not already used
- // TODO: complete only on full opts?
- <span class="cstat-no" title="statement not covered" > compls = Object.keys(cmd._optsByKey);</span>
- }
-
- // complete on opt values: next arg case
- <span class="cstat-no" title="statement not covered" > opts.partialWords[opts.w - 1].indexOf('-') || (optWord = opts.partialWords[opts.w - 1]);</span>
-
- // complete on opt values: completion
- let opt;
- <span class="cstat-no" title="statement not covered" > optWord</span>
- && (opt = cmd._optsByKey[optWord])
- && !opt._flag
- && opt._comp
- && (compls = Q.join(compls,
- Q.when(opt._comp(opts),
- <span class="fstat-no" title="function not covered" > (c</span>, o) => <span class="cstat-no" title="statement not covered" >c.concat(o.map(<span class="fstat-no" title="function not covered" >v </span>=> <span class="cstat-no" title="statement not covered" >(optPrefix || '') + v)</span>))</span>));
-
- // TODO: complete on args values (context aware, custom completion?)
-
- // custom completion on cmds
- <span class="cstat-no" title="statement not covered" > cmd._comp && (compls = Q.join(compls, Q.when(cmd._comp(opts)), <span class="fstat-no" title="function not covered" >(c</span>, o) => <span class="cstat-no" title="statement not covered" >c.concat(o))</span>);</span>
-
- // TODO: context aware custom completion on cmds, opts and args
- // (can depend on already entered values, especially options)
-
- <span class="cstat-no" title="statement not covered" > return Q.when(compls, <span class="fstat-no" title="function not covered" >co</span>mplitions => {</span>
- <span class="cstat-no" title="statement not covered" > console.error('partialWord: %s', opts.partialWord);</span>
- <span class="cstat-no" title="statement not covered" > console.error('compls: %j', complitions);</span>
- <span class="cstat-no" title="statement not covered" > return compls.filter(<span class="fstat-no" title="function not covered" >(c</span>) => <span class="cstat-no" title="statement not covered" >c.indexOf(opts.partialWord) === 0)</span>;</span>
- });
- }
- </pre></td></tr>
- </table></pre>
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