forked from lix-project/lix-website
129 lines
3.9 KiB
JavaScript
129 lines
3.9 KiB
JavaScript
/**
|
|
* @module match-tasks
|
|
* @author Toru Nagashima
|
|
* @copyright 2015 Toru Nagashima. All rights reserved.
|
|
* See LICENSE file in root directory for full license.
|
|
*/
|
|
"use strict"
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Requirements
|
|
//------------------------------------------------------------------------------
|
|
|
|
const Minimatch = require("minimatch").Minimatch
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Helpers
|
|
//------------------------------------------------------------------------------
|
|
|
|
const COLON_OR_SLASH = /[:/]/g
|
|
const CONVERT_MAP = { ":": "/", "/": ":" }
|
|
|
|
/**
|
|
* Swaps ":" and "/", in order to use ":" as the separator in minimatch.
|
|
*
|
|
* @param {string} s - A text to swap.
|
|
* @returns {string} The text which was swapped.
|
|
*/
|
|
function swapColonAndSlash(s) {
|
|
return s.replace(COLON_OR_SLASH, (matched) => CONVERT_MAP[matched])
|
|
}
|
|
|
|
/**
|
|
* Creates a filter from user-specified pattern text.
|
|
*
|
|
* The task name is the part until the first space.
|
|
* The rest part is the arguments for this task.
|
|
*
|
|
* @param {string} pattern - A pattern to create filter.
|
|
* @returns {{match: function, task: string, args: string}} The filter object of the pattern.
|
|
*/
|
|
function createFilter(pattern) {
|
|
const trimmed = pattern.trim()
|
|
const spacePos = trimmed.indexOf(" ")
|
|
const task = spacePos < 0 ? trimmed : trimmed.slice(0, spacePos)
|
|
const args = spacePos < 0 ? "" : trimmed.slice(spacePos)
|
|
const matcher = new Minimatch(swapColonAndSlash(task), { nonegate: true })
|
|
const match = matcher.match.bind(matcher)
|
|
|
|
return { match, task, args }
|
|
}
|
|
|
|
/**
|
|
* The set to remove overlapped task.
|
|
*/
|
|
class TaskSet {
|
|
/**
|
|
* Creates a instance.
|
|
*/
|
|
constructor() {
|
|
this.result = []
|
|
this.sourceMap = Object.create(null)
|
|
}
|
|
|
|
/**
|
|
* Adds a command (a pattern) into this set if it's not overlapped.
|
|
* "Overlapped" is meaning that the command was added from a different source.
|
|
*
|
|
* @param {string} command - A pattern text to add.
|
|
* @param {string} source - A task name to check.
|
|
* @returns {void}
|
|
*/
|
|
add(command, source) {
|
|
const sourceList = this.sourceMap[command] || (this.sourceMap[command] = [])
|
|
if (sourceList.length === 0 || sourceList.indexOf(source) !== -1) {
|
|
this.result.push(command)
|
|
}
|
|
sourceList.push(source)
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Public Interface
|
|
//------------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Enumerates tasks which matches with given patterns.
|
|
*
|
|
* @param {string[]} taskList - A list of actual task names.
|
|
* @param {string[]} patterns - Pattern texts to match.
|
|
* @returns {string[]} Tasks which matches with the patterns.
|
|
* @private
|
|
*/
|
|
module.exports = function matchTasks(taskList, patterns) {
|
|
const filters = patterns.map(createFilter)
|
|
const candidates = taskList.map(swapColonAndSlash)
|
|
const taskSet = new TaskSet()
|
|
const unknownSet = Object.create(null)
|
|
|
|
// Take tasks while keep the order of patterns.
|
|
for (const filter of filters) {
|
|
let found = false
|
|
|
|
for (const candidate of candidates) {
|
|
if (filter.match(candidate)) {
|
|
found = true
|
|
taskSet.add(
|
|
swapColonAndSlash(candidate) + filter.args,
|
|
filter.task
|
|
)
|
|
}
|
|
}
|
|
|
|
// Built-in tasks should be allowed.
|
|
if (!found && (filter.task === "restart" || filter.task === "env")) {
|
|
taskSet.add(filter.task + filter.args, filter.task)
|
|
found = true
|
|
}
|
|
if (!found) {
|
|
unknownSet[filter.task] = true
|
|
}
|
|
}
|
|
|
|
const unknownTasks = Object.keys(unknownSet)
|
|
if (unknownTasks.length > 0) {
|
|
throw new Error(`Task not found: "${unknownTasks.join("\", ")}"`)
|
|
}
|
|
return taskSet.result
|
|
}
|