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Copy pathwatch.js
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executable file
·437 lines (372 loc) · 14.1 KB
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#!/usr/bin/env node
(function(global) {
var USAGE = _multiline(function() {/*
Usage:
node bin/Watch.js [--help]
[--verbose]
[--run script][--action script]
[--command script]
[--delay n]
watch-target-file [watch-target-file ...]
See:
https://github.com/uupaa/Watch.js/wiki/Watch
*/});
var ERR = "\u001b[31m"; // RED
var WARN = "\u001b[33m"; // YELLOW
var INFO = "\u001b[32m"; // GREEN
var CLR = "\u001b[0m"; // WHITE
var fs = require("fs");
var cp = require("child_process");
var argv = process.argv.slice(2);
var pkg = JSON.parse(fs.readFileSync("./package.json", "utf8"));
var wmlib = process.argv[1].split("/").slice(0, -2).join("/") + "/lib/"; // "WebModule/lib/"
var mod = require(wmlib + "ModuleSystem.js");
var target = mod.collectBuildTarget(pkg);
var options = _parseCommandLineOptions(argv, {
help: false, // show help
source: target.sources, // WatchTargetPathStringArray: [dir, file, ...]
delay: 1000, // delay time (unit ms)
runScript: "", // $ npm run {{script}}
command: "", // $ command
verbose: false, // verbose
ignoreDir: [".watchignore"] // ignore dir name
});
if (options.help) {
console.log(WARN + USAGE + CLR);
return;
}
if (!options.source.length) {
console.log(ERR + "Input file is empty." + CLR);
return;
}
Watch(options.source, {
"delay": options.delay,
"verbose": options.verbose,
"ignoreDir": options.ignoreDir
}, function(err, path) { // @arg Error:
if (!err) {
var command = options.runScript ? ("npm run " + options.runScript) :
options.command ? options.command : "";
if (options.verbose) {
var stat = fs.statSync(path);
console.log(INFO + "|﹏o )з !? " + CLR + path + " (size:" + stat.size + ")");
console.log(INFO + "|﹏・)っ " + CLR + command);
}
cp.exec(command, function(err, stdout, stderr) {
if (err) {
if (options.verbose) {
console.log(ERR + "|﹏<)з error. " + CLR);
console.log(stdout.split("\n").map(function(line) {
return ERR + "| " + CLR + line;
}).join("\n"));
}
} else {
if (options.verbose) {
console.log(INFO + "|◇・ミ) ok! " + CLR);
}
}
});
}
});
function _parseCommandLineOptions(argv, options) {
for (var i = 0, iz = argv.length; i < iz; ++i) {
switch (argv[i]) {
case "-h":
case "--help": options.help = true; break;
case "-v":
case "--verbose": options.verbose = true; break;
case "--delay": options.delay = argv[++i]; break;
case "--run":
case "--action": options.runScript = argv[++i]; break;
case "--command": options.command = argv[++i]; break;
default:
var path = argv[i];
if (fs.existsSync(path) && fs.statSync(path).isFile()) {
if (options.source.indexOf(path) < 0) { // avoid duplicate
options.source.push(path);
}
} else if (fs.existsSync(path) && fs.statSync(path).isDirectory()) {
path = path.replace(/\/+$/, "") + "/"; // supply tail slash. "path" -> "path/"
if (options.source.indexOf(path) < 0) { // avoid duplicate
options.source.push(path);
}
} else {
console.log(ERR + "invalid path: " + path + CLR);
}
}
}
return options;
}
function _multiline(fn) { // @arg Function:
// @ret String:
return (fn + "").split("\n").slice(1, -1).join("\n");
}
// --- dependency modules ----------------------------------
// --- define / local variables ----------------------------
//var _runOnNode = "process" in global;
//var _runOnWorker = "WorkerLocation" in global;
//var _runOnBrowser = "document" in global;
// --- class / interfaces ----------------------------------
function Watch(paths, // @arg PathArray
options, // @arg Object - { delay, action, verbose, ... }
callback) { // @arg Function - callback(err:Error):void
//{@dev
_if(!Array.isArray(paths), "invalid Watch(paths)");
_if(!_isObject(options), "invalid Watch(,options)");
_if(!_isFunction(callback), "invalid Watch(,,callback)");
//}@dev
var that = this;
this._options = options || {};
paths.forEach(function(path) {
if (_isFile(path)) {
if (this._options.verbose) {
var stat = fs.statSync(path);
console.log(INFO + "|◇・)з " + CLR + "I'm watching " + path + " (size:" + stat.size + ")");
}
Watch_file(that, path, function() {
callback(null, path);
});
/*
} else if (_isDir(path)) {
if (this._options.verbose) {
console.log("|◇・)зstart watch...");
}
Watch_dir(that, path, function(diff) { // { path: { dir, size, mtime }, ... }
callback(null, diff);
}, options);
*/
}
});
}
// --- implements ------------------------------------------
function Watch_file(that, // @arg this
watchFilePath, // @arg String - watch file path
callback) { // @arg Function - callback(null):void
var timerID = 0;
fs.watchFile(watchFilePath, _watchdogCallback);
function _watchdogCallback() {
// event throttling
if (timerID) {
clearTimeout(timerID); timerID = 0;
}
timerID = setTimeout(function() {
clearTimeout(timerID); timerID = 0;
callback(null);
}, that._options.delay);
}
}
/*
function Watch_dir(that, // @arg this
watchRoorDir, // @arg String - watch root dir
callback, // @arg Function - callback(diff:Object):void
options) { // @arg Object - { ... }
// diff - Object: { path: { dir, size, mtime }, ... }
var timerID = 0;
var keepDirTrees = Watch_scanDir(watchRoorDir, options); // { dirs, files }
for (var path in keepDirTrees.dirs) {
if (that._options.verbose) {
console.log(INFO + " watch target: " + CLR + path + "/");
}
fs.watch(path, _watchdogCallback);
}
function _watchdogCallback() {
if (timerID) {
clearTimeout(timerID); timerID = 0;
}
// -> sleep(1000)
// -> scanDir(watchRootDir)
// -> get diff
// -> callback(diff)
// -> sleep...
timerID = setTimeout(function() {
var currentDirTrees = Watch_scanDir(watchRoorDir, options); // { dirs, files }
var diff = _diff(currentDirTrees, keepDirTrees); // { path: { dir, size, mtime }, ... }
keepDirTrees = currentDirTrees;
clearTimeout(timerID); timerID = 0;
callback(diff);
}, that._options.delay);
}
function _diff(curt, // @arg Object - current dir tree. { dirs, files }
last) { // @arg Object - last dir tree. { dirs, files }
// @ret Object - diff dir tree. { path: { dir, size, mtime }, ... }
var result = {};
for (var path in curt.files) {
if ( !_match( path, curt.files[path], last.files[path] ) ) {
result[path] = curt.files[path];
}
}
return result;
}
function _match(path,
a, // @arg Object - { dir, size, mtime }
b) { // @arg Object - { dir, size, mtime }
if (a && b) {
if (a.dir === b.dir) {
if (a.size === b.size) {
if (a.mtime === b.mtime) {
return true;
}
}
}
if (that._options.verbose) {
console.log(WARN + " changed: " + CLR + path);
}
}
return false;
}
}
*/
/*
function Watch_scanDir(scanRootDir, // @arg String - scan root dir
options) { // @arg Object - { ... }
// @ret Object - { dirs: {}, files: {} }
// @options.dirs Object - { dir:Boolean, size:Intger, mtime:Integre }
// @options.files Object - { dir:Boolean, size:Intger, mtime:Integre }
var result = { dirs: {}, files: {} };
var stat = fs.statSync(scanRootDir);
var ignoreDir = options.ignoreDir || [];
var found = false;
if ( stat.isDirectory() ) {
// found .watchignore ?
if (ignoreDir.length) {
found = ignoreDir.some(function(value) {
return _isFile(scanRootDir + value);
});
}
if (found) {
// ignore dir
} else {
result.dirs[scanRootDir] = {
dir: true,
size: stat.size,
mtime: +stat.mtime
};
_readDir(result, scanRootDir, options);
}
}
return result;
}
*/
/*
function _readDir(result, // @arg Object - { dirs: {}, files: {} }
dir, // @arg DirString
options) { // @arg Object - { ... }
// @recursive
var fileList = fs.readdirSync(dir);
var ignoreDir = options.ignoreDir || [];
var ignoreFileNamePostFix = options.ignoreFileNamePostFix || [];
Sort_nat(fileList).forEach(function(fname) {
var path = dir + fname;
var stat = fs.statSync(path);
var found = false;
if ( stat.isFile() ) {
if (ignoreFileNamePostFix.length) {
found = ignoreFileNamePostFix.some(function(value) {
return path.lastIndexOf(value) === path.length - value.length;
});
}
if (found) {
// found *.min.js
} else {
result.files[path] = { dir: false, size: stat.size, mtime: +stat.mtime };
}
} else if ( stat.isDirectory() ) {
path += "/";
// found .watchignore
if (ignoreDir.length) {
found = ignoreDir.some(function(value) {
return _isFile(path + value);
});
}
if (found) {
// ignore dir
} else {
result.dirs[path] = { dir: true, size: stat.size, mtime: +stat.mtime };
_readDir(result, path, options); // recursive call
}
}
});
}
*/
function _isFile(path) { // @arg String
// @ret Boolean
return fs.existsSync(path) && fs.statSync(path).isFile();
}
/*
function _isDir(path) { // @arg String
// @ret Boolean
return fs.existsSync(path) && fs.statSync(path).isDirectory();
}
*/
/*
// copy from Sort.js
function Sort_nat(source, // @arg StringArray - source. ["abc100", "abc1", "abc10"]
ignoreCase) { // @arg Boolean = false - true is case-insensitive
// @ret StringArray - sorted array. ["abc1", "abc10", "abc100"]
// @desc nat sort
//{@dev
_if(!Array.isArray(source), "Sort.nat(source)");
_if(ignoreCase !== undefined &&
typeof ignoreCase !== "boolean", "Sort.nat(,ignoreCase)");
//}@dev
function toNumberArray(str) {
return str.split(/(\d+)/).reduce(function(prev, next) {
if (next !== "") {
if (isNaN(next)) {
next.split("").forEach(function(v) {
prev.push( v.charCodeAt(0) );
});
} else {
prev.push(+next);
}
}
return prev;
}, []);
}
var cache = {}; // { keyword: [number, ...], ... }
return source.sort(function(a, b) {
var aa, bb;
if (a in cache) {
aa = cache[a];
} else {
cache[a] = aa = toNumberArray( ignoreCase ? a.toLowerCase() : a );
}
if (b in cache) {
bb = cache[b];
} else {
cache[b] = bb = toNumberArray( ignoreCase ? b.toLowerCase() : b );
}
var x = 0, y = 0, i = 0, iz = aa.length;
for (; i < iz; ++i) {
x = aa[i] || 0;
y = bb[i] || 0;
if (x !== y) {
return x - y;
}
}
return a.length - b.length;
});
}
*/
// --- validate / assertions -------------------------------
//{@dev
//function $valid(val, fn, hint) { if (global["Valid"]) { global["Valid"](val, fn, hint); } }
//function $type(obj, type) { return global["Valid"] ? global["Valid"].type(obj, type) : true; }
//function $keys(obj, str) { return global["Valid"] ? global["Valid"].keys(obj, str) : true; }
//function $some(val, str, ignore) { return global["Valid"] ? global["Valid"].some(val, str, ignore) : true; }
//function $args(fn, args) { if (global["Valid"]) { global["Valid"].args(fn, args); } }
//}@dev
//{@dev
function _isFunction(target) {
return target !== undefined && (typeof target === "function");
}
function _isObject(target) {
return target && (target.constructor === ({}).constructor);
}
function _if(booleanValue, errorMessageString) {
if (booleanValue) {
throw new Error(errorMessageString);
}
}
//}@dev
})((this || 0).self || global);
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