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parcel-postbuild.js
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parcel-postbuild.js
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const util = require('util'),
fs = require('fs'),
path = require('path'),
replace = require('replace-in-file'),
escapeRegExp = require('lodash.escaperegexp'),
copyFilePromise = util.promisify(fs.copyFile);
// the directory in which you're outputting your build
let baseDir = 'public'
// the name for the directory where your static files will be moved to
let staticDir = 'static'
// the directory where your source files are placed
let sourceDir = 'src'
const pathMake = (p) => {
if (!fs.existsSync(path.join(__dirname, baseDir, p))){
fs.mkdirSync(path.join(__dirname, baseDir, p));
}}
pathMake(staticDir) // if the staticDir directory isn't there, create it
// pathMake(assetsDir)// same for the assetsDir directory
pathMake('font') // same for the fontsDir directory
pathMake('js')
pathMake('styles')
const hashRemove = (hash) => {
return hash.replace(/\.[a-z0-9]{8}\./gm, '.')
}
const linkReplace = (file, list, dir) => {
list.forEach(name => {
let startPath = `${dir}/`
if(dir == null) { startPath = '' }
let options = {
files: path.join(baseDir, file),
from: new RegExp(escapeRegExp(name), 'g'),
to: startPath + hashRemove(name)
}
try {
let changedFiles = replace.sync(options);
// console.log('Modified files:', changedFiles.join(', '));
}
catch (error) {
console.error('Error occurred:', error);
}})}
const parcelFakeUnignore = (file, list, dir) => {
let options = {
files: path.join(baseDir, file),
from: new RegExp(/<!-- parcel-ignore \[ (.*) \] -->/, 'gm'),
to: '$1'
}
try {
let changedFiles = replace.sync(options);
// console.log('Modified files:', changedFiles.join(', '));
}
catch (error) {
console.error('Error occurred:', error);
}}
const filesMove = (list, dest) => {
list.forEach(
name => {
fs.rename(path.join(__dirname, baseDir, name), path.join(__dirname, baseDir, dest, hashRemove(name)), function (err) {
if (err) throw err
console.log(`Successfully moved ${hashRemove(name)}`)
})})}
const copyFiles = (srcDir, destDir, files) => {
return Promise.all(files.map(f => {
return copyFilePromise(path.join(srcDir, f), path.join(destDir, f));
}));
}
// Loop through the baseDir directory
fs.readdir(`./${baseDir}`, (err, files) => {
// store all files in custom arrays by type
let html = [],
js = [],
css = [],
jsMaps = [],
cssMaps = [],
fonts = [],
webman = [],
staticAssets = []
const sortFiles = () => {
files.forEach(file => {
// first HTML files
if(file.match(/.+\.(html)$/)) {
console.log('html match', file)
html.push(file)
} else if(file.match(/.+\.(js)$/)) { // then JavaScripts
console.log('JavaScript match', file)
js.push(file)
} else if(file.match(/.+\.(woff|woff2|eot|ttf|otf)$/)) { // then fonts
console.log('Font match', file)
fonts.push(file)
} else if (file.match(/.+\.(svg)$/)) { // Cheching for font SVG
console.log('SVG match', file)
if (fs.readFileSync(path.join(baseDir, file), 'utf8').match(/\<font\s/gm) != null) {
fonts.push(file)
} else {
staticAssets.push(file)
}
} else if(file.match(/.+\.(css)$/)) { // then CSS
console.log('css match', file)
css.push(file)
} else if(file.match(/.+\.(js.map)$/)) { // then sourcemaps
console.log('JS sourcemaps match', file)
jsMaps.push(file)
} else if(file.match(/.+\.(css.map)$/)) { // then sourcemaps
console.log('CSS sourcemaps match', file)
cssMaps.push(file)
} else if(file.match(/.+\.(webmanifest)$/)) { // then webmanifest
console.log('CSS sourcemaps match', file)
webman.push(file)
} else if(file.match(/.+\..+$/)){ // all other files, exclude current directory and directory one level up
if (!file.match(/.+\.(json|webmanifest)$/)) {
console.log('Static match', file)
staticAssets.push(file)
}
}
});
}
const replaceLinks = () => {
// check what went where
console.log('html', html, '\ncss', css, '\ncss sourcemaps', cssMaps, '\njs', js, '\njs sourcemaps', jsMaps, '\nfonts', fonts, '\nstaticAssets', staticAssets)
// create an array for all compiled assets
// let assets = css.concat(js).concat(map)
// replace all other resources in html
html.forEach(
file => {
staticAssets.forEach(name => {
let options = {
files: path.join(baseDir, file),
from: new RegExp(escapeRegExp(name), 'g'),
to: staticDir + '/' + hashRemove(name)
}
try {
let changedFiles = replace.sync(options);
// console.log('Modified files:', changedFiles.join(', '));
}
catch (error) {
console.error('Error occurred:', error);
}
})
// assets.forEach(name => {
// let options = {
// files: path.join(baseDir, file),
// from: new RegExp(escapeRegExp(name), 'g'),
// to: assetsDir + '/' + hashRemove(name)
// }
// try {
// let changedFiles = replace.sync(options);
// console.log('Modified files:', changedFiles.join(', '));
// }
// catch (error) {
// console.error('Error occurred:', error);
// }
// })
linkReplace(file, fonts, 'font')
// linkReplace(file, js, 'js')
parcelFakeUnignore(file)
linkReplace(file, css, 'styles')
}
)
webman.forEach(
file => {
staticAssets.forEach(name => {
let options = {
files: path.join(baseDir, file),
from: new RegExp(escapeRegExp(name), 'g'),
to: staticDir + '/' + hashRemove(name)
}
try {
let changedFiles = replace.sync(options);
}
catch (error) {
console.error('Error occurred:', error);
}
})
linkReplace(file, staticAssets, staticDir)
}
)
// replace map links in js
js.forEach(
file => {
jsMaps.forEach(name => {
let options = {
files: path.join(baseDir, file),
from: name,
to: hashRemove(name)
}
try {
let changedFiles = replace.sync(options);
// console.log('Modified files:', changedFiles.join(', '));
}
catch (error) {
console.error('Error occurred:', error);
}
})
}
)
// replace links in css
css.forEach(
file => {
staticAssets.forEach(name => {
let options = {
files: path.join(baseDir, file),
from: new RegExp(escapeRegExp(name), 'g'),
to: '../' + staticDir + '/' + hashRemove(name)
}
try {
let changedFiles = replace.sync(options);
// console.log('Modified files:', changedFiles.join(', '));
}
catch (error) {
console.error('Error occurred:', error);
}
})
linkReplace(file, fonts, '../font')
linkReplace(file, cssMaps, null)
}
)
}
const moveBuildFiles = () => {
// filesMove(assets, assetsDir) // move js and css and maps
filesMove(fonts, 'font') // move fonts
filesMove(js, 'js')
filesMove(jsMaps, 'js')
filesMove(css, 'styles')
filesMove(cssMaps, 'styles')
filesMove(staticAssets, staticDir) // move staticAssets
}
sortFiles();
replaceLinks();
moveBuildFiles();
});
// fs.copyFile(`${sourceDir}\\data.json`, `${baseDir}\\data.json`, (err) => {
// if (err) throw err;
// console.log('data.json was copied');
// });
// fs.copyFile(`${sourceDir}\\js\\main.js`, `${baseDir}\\js\\main.js`, (err) => {
// if (err) throw err;
// console.log('data.json was copied');
// });
// usage
copyFiles(sourceDir, baseDir, ['data.json', 'js/main.js']).then(() => {
console.log("JSON and JS are copied.");
}).catch(err => {
console.log(err);
});