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Convert build/lib/watch/
to .ts
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parent
2ab5b8bd5f
commit
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@ -3,16 +3,17 @@
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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var path = require('path');
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var cp = require('child_process');
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var fs = require('fs');
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var File = require('vinyl');
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var es = require('event-stream');
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var filter = require('gulp-filter');
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import * as path from 'path';
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import * as cp from 'child_process';
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import * as fs from 'fs';
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import * as File from 'vinyl';
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import * as es from 'event-stream';
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import * as filter from 'gulp-filter';
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import { Stream } from 'stream';
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var watcherPath = path.join(__dirname, 'watcher.exe');
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const watcherPath = path.join(__dirname, 'watcher.exe');
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function toChangeType(type) {
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function toChangeType(type: '0' | '1' | '2'): 'change' | 'add' | 'unlink' {
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switch (type) {
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case '0': return 'change';
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case '1': return 'add';
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@ -20,33 +21,33 @@ function toChangeType(type) {
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}
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}
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function watch(root) {
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var result = es.through();
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var child = cp.spawn(watcherPath, [root]);
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function watch(root: string): Stream {
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const result = es.through();
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let child: cp.ChildProcess | null = cp.spawn(watcherPath, [root]);
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child.stdout.on('data', function (data) {
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var lines = data.toString('utf8').split('\n');
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for (var i = 0; i < lines.length; i++) {
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var line = lines[i].trim();
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const lines: string[] = data.toString('utf8').split('\n');
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for (let i = 0; i < lines.length; i++) {
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const line = lines[i].trim();
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if (line.length === 0) {
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continue;
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}
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var changeType = line[0];
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var changePath = line.substr(2);
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const changeType = <'0' | '1' | '2'>line[0];
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const changePath = line.substr(2);
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// filter as early as possible
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if (/^\.git/.test(changePath) || /(^|\\)out($|\\)/.test(changePath)) {
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continue;
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}
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var changePathFull = path.join(root, changePath);
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const changePathFull = path.join(root, changePath);
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var file = new File({
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const file = new File({
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path: changePathFull,
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base: root
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});
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file.event = toChangeType(changeType);
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(<any>file).event = toChangeType(changeType);
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result.emit('data', file);
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}
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});
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@ -62,44 +63,44 @@ function watch(root) {
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process.once('SIGTERM', function () { process.exit(0); });
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process.once('SIGTERM', function () { process.exit(0); });
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process.once('exit', function () { child && child.kill(); });
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process.once('exit', function () { if (child) { child.kill(); } });
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return result;
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}
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var cache = Object.create(null);
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const cache: { [cwd: string]: Stream; } = Object.create(null);
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module.exports = function (pattern, options) {
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module.exports = function (pattern: string | string[] | filter.FileFunction, options?: { cwd?: string; base?: string; }) {
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options = options || {};
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var cwd = path.normalize(options.cwd || process.cwd());
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var watcher = cache[cwd];
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const cwd = path.normalize(options.cwd || process.cwd());
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let watcher = cache[cwd];
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if (!watcher) {
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watcher = cache[cwd] = watch(cwd);
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}
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var rebase = !options.base ? es.through() : es.mapSync(function (f) {
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f.base = options.base;
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const rebase = !options.base ? es.through() : es.mapSync(function (f: File) {
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f.base = options!.base!;
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return f;
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});
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return watcher
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.pipe(filter(['**', '!.git{,/**}'])) // ignore all things git
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.pipe(filter(pattern))
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.pipe(es.map(function (file, cb) {
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.pipe(es.map(function (file: File, cb) {
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fs.stat(file.path, function (err, stat) {
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if (err && err.code === 'ENOENT') { return cb(null, file); }
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if (err && err.code === 'ENOENT') { return cb(undefined, file); }
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if (err) { return cb(); }
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if (!stat.isFile()) { return cb(); }
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fs.readFile(file.path, function (err, contents) {
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if (err && err.code === 'ENOENT') { return cb(null, file); }
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if (err && err.code === 'ENOENT') { return cb(undefined, file); }
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if (err) { return cb(); }
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file.contents = contents;
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file.stat = stat;
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cb(null, file);
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cb(undefined, file);
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});
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});
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}))
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