2021-02-20 20:03:53 +03:00
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/*
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2022-01-10 11:59:00 +03:00
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* Copyright (c) 2016-2022 Martin Donath <martin.donath@squidfunk.com>
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2021-02-20 20:03:53 +03:00
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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2021-02-22 20:19:00 +03:00
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import * as chokidar from "chokidar"
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import * as fs from "fs/promises"
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import {
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EMPTY,
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Observable,
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from,
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fromEvent,
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identity,
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catchError,
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defer,
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map,
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mergeWith,
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of,
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switchMap,
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tap
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} from "rxjs"
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import glob from "tiny-glob"
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/* ----------------------------------------------------------------------------
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* Helper types
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* ------------------------------------------------------------------------- */
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/**
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* Resolve options
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*/
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interface ResolveOptions {
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cwd: string /* Working directory */
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watch?: boolean /* Watch mode */
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}
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/**
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* Watch options
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*/
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interface WatchOptions {
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cwd: string /* Working directory */
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}
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/* ----------------------------------------------------------------------------
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* Data
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* ------------------------------------------------------------------------- */
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/**
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* Base directory for compiled files
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*/
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2021-02-21 13:59:38 +03:00
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export const base = "material"
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/**
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* Cache to omit redundant writes
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*/
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export const cache = new Map<string, string>()
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/* ----------------------------------------------------------------------------
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* Helper Ffunctions
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* ------------------------------------------------------------------------- */
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/**
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* Return the current time
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*
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* @returns Time
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*/
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function now() {
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const date = new Date()
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return [
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`${date.getHours()}`.padStart(2, "0"),
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`${date.getMinutes()}`.padStart(2, "0"),
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`${date.getSeconds()}`.padStart(2, "0")
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]
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.join(":")
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}
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/* ----------------------------------------------------------------------------
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* Functions
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* ------------------------------------------------------------------------- */
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/**
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* Resolve a pattern
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*
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* @param pattern - Pattern
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* @param options - Options
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*
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* @returns File observable
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*/
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export function resolve(
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pattern: string, options?: ResolveOptions
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): Observable<string> {
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return from(glob(pattern, options))
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.pipe(
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catchError(() => EMPTY),
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switchMap(files => files),
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options?.watch
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? mergeWith(watch(pattern, options))
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: identity
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)
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}
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/**
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* Watch all files matching the given pattern
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*
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* @param pattern - Pattern
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* @param options - Options
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*
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* @returns File observable
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*/
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export function watch(
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pattern: string, options: WatchOptions
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): Observable<string> {
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return fromEvent(
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chokidar.watch(pattern, options),
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"change"
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) as Observable<string>
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}
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/* ------------------------------------------------------------------------- */
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/**
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* Recursively create the given directory
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*
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* @param directory - Directory
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*
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* @returns Directory observable
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*/
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export function mkdir(directory: string): Observable<string> {
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return defer(() => fs.mkdir(directory, { recursive: true }))
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.pipe(
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map(() => directory)
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)
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}
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/**
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* Read a file
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*
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* @param file - File
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*
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* @returns File data observable
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*/
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export function read(file: string): Observable<string> {
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return defer(() => fs.readFile(file, "utf8"))
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}
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/**
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* Write a file, but only if the contents changed
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*
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* @param file - File
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* @param data - File data
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*
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* @returns File observable
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*/
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export function write(file: string, data: string): Observable<string> {
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let contents = cache.get(file)
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if (contents === data) {
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return of(file)
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} else {
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cache.set(file, data)
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return defer(() => fs.writeFile(file, data))
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.pipe(
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map(() => file),
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process.argv.includes("--verbose")
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? tap(file => console.log(`${now()} + ${file}`))
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: identity
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)
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}
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}
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