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#!/usr/bin/env node
const autoprefixer = require('autoprefixer');
const postcss = require('postcss');
const postcssJs = require('postcss-js');
const cssnano = require('cssnano');
const postcssNested = require('postcss-nested');
const fs = require('fs');
const path = require('path');
const arg = require('arg');
const parser = require('postcss-selector-parser');
const help = require('./utils/helpCli');
const parseUtilities = require('./parseUtilities');
const createCss = require('./createCss');
const {createMediaQueries, getMediaClasses} = require('./createMediaQueries');
const {createPseudoCSS, getPseudoClasses} = require('./createPseudoCSS');
const config = require('./getUserConfig');
const getContent = require('./getContent');
const formatClassName = require('./utils/formatClassName');
const fg = require('fast-glob');
const chokidar = require('chokidar');
let sharedFlags = {
'--help': {type: Boolean, description: 'Displays usage and additional options for the command'},
'-h': '--help'
};
let commands = {
build: {
run: build,
description: 'Build the OrbitCSS style scripts',
usage: [
'orbitcss build [options]'
],
args: {
'--input': { type: String, description: 'Input file path'},
'--output': { type: String, description: 'Output file path' },
'--watch': { type: Boolean, description: 'Watches for changes and rebuilds'},
'--minimize': { type: Boolean, description: 'Final CSS output will be minimized'},
'-i': '--input',
'-o': '--output',
'-w': '--watch',
'-m': '--minimize',
...sharedFlags
}
}
}
let command = (Object.keys(commands.build.args).includes(process.argv[2])
? 'build' : process.argv[2]) || 'build';
if(commands[command] === undefined) {
help({
message: `Invalid command ${command}`,
usage: [
'orbitcss <command> [options]'
],
commands: Object.keys(commands)
.map((command) => `${command} [options]`),
options: sharedFlags
})
process.exit(9);
}
let { args: flags, run } = commands[command];
let args = (() => {
let result = arg(
Object.fromEntries(
Object.entries(flags)
.map(([key, value]) => [key, typeof value === 'object' ? value.type : value])
),
{ permissive: true }
)
return result;
})();
if(args['--help']) {
let { description, usage } = commands[command];
help({
message: description,
usage: usage,
options: flags
});
process.exit(0);
}
function filterClasses(content) {
return Object.fromEntries(Object.entries(
parseUtilities(require('./conf/utilityClasses'))
).filter(
([k]) => [...content].includes(formatClassName(k).replace('\\', ''))
));
}
async function getInputCss(path) {
const inputFile = await fs.readFileSync(path);
return postcssJs.objectify(postcss.parse(inputFile));
}
async function createFinalCss({
content,
input,
cssClasses = {},
mediaClasses = {},
pseudoClasses = {}
}) {
cssClasses = {...filterClasses(content), ...cssClasses};
mediaClasses = getMediaClasses(content, mediaClasses);
pseudoClasses = getPseudoClasses(content, pseudoClasses);
let inputCss = input ? await getInputCss(input) : {};
return {
css: {
...await getInputCss(path.join(__dirname, './css/normalize.css')),
...inputCss,
...createCss({
rules: cssClasses
}),
...createMediaQueries(mediaClasses),
...createPseudoCSS(pseudoClasses)
},
classes: {
cssClasses,
mediaClasses,
pseudoClasses
}
};
}
async function build() {
let input = args['--input'];
let output = args['--output'];
let min = args['--minimize'] || false;
let watch = args['--watch'] || false;
// if(output === undefined) {
// let { description, usage } = commands[command];
// help({
// message: "Missing output command. Expects --output OR -o.",
// commands: ["orbitcss build --output <file path>", "orbitcss build -o <file path>"]
// });
// process.exit(9);
// }
let plugins = [
autoprefixer,
postcssNested
];
if(min) {
plugins.push(cssnano);
}
const content = getContent(fg.sync(config.files));
console.time('Creating CSS');
const createCss = await createFinalCss({content, input});
console.timeEnd('Creating CSS');
let css = createCss.css;
function runBuild() {
console.time('Compiling CSS');
postcss(plugins)
.process(css, { from: undefined, to: output, parser: postcssJs })
.then((result) => {
if(!output) {
return process.stdout.write(result.css);
}
fs.writeFile(output, result.css, () => true);
if(result.map) {
fs.writeFile(`${output}.map`, result.map.toString(), () => true)
}
});
console.timeEnd('Compiling CSS')
}
function runWatch() {
runBuild();
console.log();
console.log(`CSS output > ${output}`);
let existing = createCss.classes;
const watcher = chokidar.watch(fg.sync(config.files), {
ignoreInitial: true,
});
console.log();
console.log('Watching for changes...');
async function rebuild(file) {
console.log();
console.log(`Change on ${file}`);
console.log('Rebuilding...');
let content = getContent([file]);
let finalCss = await createFinalCss({content, input, ...existing});
css = finalCss.css;
existing = finalCss.classes;
runBuild();
}
watcher.on('add', async(file) => {
await rebuild(file);
})
.on('change', async(file) => {
await rebuild(file);
});
}
if(watch) {
runWatch();
}
else {
runBuild();
console.log();
console.log(`CSS output > ${output}`);
}
}
run();