mirror of
https://github.com/musix-org/musix-oss
synced 2024-12-23 22:33:17 +00:00
92 lines
2.5 KiB
JavaScript
92 lines
2.5 KiB
JavaScript
|
var fs = require('fs')
|
||
|
var path = require('path')
|
||
|
|
||
|
// add bash completions to your
|
||
|
// yargs-powered applications.
|
||
|
module.exports = function (yargs, usage) {
|
||
|
var self = {
|
||
|
completionKey: 'get-yargs-completions'
|
||
|
}
|
||
|
|
||
|
// get a list of completion commands.
|
||
|
self.getCompletion = function (done) {
|
||
|
var completions = []
|
||
|
var current = process.argv[process.argv.length - 1]
|
||
|
var previous = process.argv.slice(process.argv.indexOf('--' + self.completionKey) + 1)
|
||
|
var argv = yargs.parse(previous)
|
||
|
|
||
|
// 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 = yargs.getCommandHandlers()
|
||
|
for (var i = 0, ii = previous.length; i < ii; ++i) {
|
||
|
if (handlers[previous[i]]) {
|
||
|
return handlers[previous[i]](yargs.reset())
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!current.match(/^-/)) {
|
||
|
usage.getCommands().forEach(function (command) {
|
||
|
if (previous.indexOf(command[0]) === -1) {
|
||
|
completions.push(command[0])
|
||
|
}
|
||
|
})
|
||
|
}
|
||
|
|
||
|
if (current.match(/^-/)) {
|
||
|
Object.keys(yargs.getOptions().key).forEach(function (key) {
|
||
|
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
|
||
|
}
|