diff options
Diffstat (limited to 'deps/npm/node_modules/libnpx/node_modules/yargs/lib/completion.js')
-rw-r--r-- | deps/npm/node_modules/libnpx/node_modules/yargs/lib/completion.js | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/deps/npm/node_modules/libnpx/node_modules/yargs/lib/completion.js b/deps/npm/node_modules/libnpx/node_modules/yargs/lib/completion.js new file mode 100644 index 0000000000..5cd9a18a03 --- /dev/null +++ b/deps/npm/node_modules/libnpx/node_modules/yargs/lib/completion.js @@ -0,0 +1,104 @@ +const fs = require('fs') +const path = require('path') + +// add bash completions to your +// yargs-powered applications. +module.exports = function (yargs, usage, command) { + const self = { + completionKey: 'get-yargs-completions' + } + + // get a list of completion commands. + // 'args' is the array of strings from the line to be completed + self.getCompletion = function (args, done) { + const completions = [] + const current = args.length ? args[args.length - 1] : '' + const argv = yargs.parse(args, true) + const aliases = yargs.parsed.aliases + + // a custom completion function can be provided + // to completion(). + if (completionFunction) { + if (completionFunction.length < 3) { + var result = completionFunction(current, argv) + + // promise based completion function. + if (typeof result.then === 'function') { + return result.then(function (list) { + process.nextTick(function () { done(list) }) + }).catch(function (err) { + process.nextTick(function () { throw err }) + }) + } + + // synchronous completion function. + return done(result) + } else { + // asynchronous completion function + return completionFunction(current, argv, function (completions) { + done(completions) + }) + } + } + + var handlers = command.getCommandHandlers() + for (var i = 0, ii = args.length; i < ii; ++i) { + if (handlers[args[i]] && handlers[args[i]].builder) { + const builder = handlers[args[i]].builder + if (typeof builder === 'function') { + const y = yargs.reset() + builder(y) + return y.argv + } + } + } + + if (!current.match(/^-/)) { + usage.getCommands().forEach(function (command) { + if (args.indexOf(command[0]) === -1) { + completions.push(command[0]) + } + }) + } + + if (current.match(/^-/)) { + Object.keys(yargs.getOptions().key).forEach(function (key) { + // If the key and its aliases aren't in 'args', add the key to 'completions' + var keyAndAliases = [key].concat(aliases[key] || []) + var notInArgs = keyAndAliases.every(function (val) { + return args.indexOf('--' + val) === -1 + }) + if (notInArgs) { + completions.push('--' + key) + } + }) + } + + done(completions) + } + + // generate the completion script to add to your .bashrc. + self.generateCompletionScript = function ($0) { + var script = fs.readFileSync( + path.resolve(__dirname, '../completion.sh.hbs'), + 'utf-8' + ) + var name = path.basename($0) + + // add ./to applications not yet installed as bin. + if ($0.match(/\.js$/)) $0 = './' + $0 + + script = script.replace(/{{app_name}}/g, name) + return script.replace(/{{app_path}}/g, $0) + } + + // register a function to perform your own custom + // completions., this function can be either + // synchrnous or asynchronous. + var completionFunction = null + self.registerFunction = function (fn) { + completionFunction = fn + } + + return self +} |