You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
3.0 KiB
104 lines
3.0 KiB
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
|
|
}
|
|
|