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5c83972401
This commit changes the interface of the command functions exported by the files in `lib/commands`. The functions now return a promise and accept a logger as the first argument. This has several advantages * The promise style is consistent with the rest of the code. * It removes a lot of duplicate code. * The command factory does not need to proxy the logger object.
43 lines
1003 B
JavaScript
43 lines
1003 B
JavaScript
var Q = require('q');
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var path = require('path');
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var fs = require('graceful-fs');
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var cli = require('../util/cli');
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var createError = require('../util/createError');
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function help(logger, name) {
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var json;
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if (name) {
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json = path.resolve(__dirname, '../../templates/json/help-' + name.replace(/\s+/g, '/') + '.json');
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} else {
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json = path.resolve(__dirname, '../../templates/json/help.json');
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}
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return Q.promise(function (resolve) {
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fs.exists(json, resolve);
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})
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.then(function (exists) {
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if (!exists) {
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throw createError('Unknown command: ' + name, 'EUNKOWNCMD', {
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command: name
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});
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}
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return require(json);
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});
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}
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// -------------------
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help.line = function (logger, argv) {
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var options = cli.readOptions(argv);
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var name = options.argv.remain.slice(1).join(' ');
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return help(logger, name);
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};
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help.completion = function () {
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// TODO
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};
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module.exports = help;
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