74 lines
2.4 KiB
JavaScript
74 lines
2.4 KiB
JavaScript
'use strict';
|
|
|
|
const fs = require('fs');
|
|
const path = require('path');
|
|
const MemoryFileSystem = require('memory-fs');
|
|
const { colors } = require('webpack-log');
|
|
const NodeOutputFileSystem = require('webpack/lib/node/NodeOutputFileSystem');
|
|
const DevMiddlewareError = require('./DevMiddlewareError');
|
|
|
|
const { mkdirp } = new NodeOutputFileSystem();
|
|
|
|
module.exports = {
|
|
toDisk(context) {
|
|
const compilers = context.compiler.compilers || [context.compiler];
|
|
for (const compiler of compilers) {
|
|
compiler.hooks.afterEmit.tap('WebpackDevMiddleware', (compilation) => {
|
|
const { assets } = compilation;
|
|
const { log } = context;
|
|
const { writeToDisk: filter } = context.options;
|
|
let { outputPath } = compiler;
|
|
|
|
if (outputPath === '/') {
|
|
outputPath = compiler.context;
|
|
}
|
|
|
|
for (const assetPath of Object.keys(assets)) {
|
|
const asset = assets[assetPath];
|
|
const source = asset.source();
|
|
const isAbsolute = path.isAbsolute(assetPath);
|
|
const writePath = isAbsolute ? assetPath : path.join(outputPath, assetPath);
|
|
const relativePath = path.relative(process.cwd(), writePath);
|
|
const allowWrite = filter && typeof filter === 'function' ? filter(writePath) : true;
|
|
|
|
if (allowWrite) {
|
|
let output = source;
|
|
|
|
mkdirp.sync(path.dirname(writePath));
|
|
|
|
if (Array.isArray(source)) {
|
|
output = source.join('\n');
|
|
}
|
|
|
|
try {
|
|
fs.writeFileSync(writePath, output, 'utf-8');
|
|
log.debug(colors.cyan(`Asset written to disk: ${relativePath}`));
|
|
} catch (e) {
|
|
log.error(`Unable to write asset to disk:\n${e}`);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
setFs(context, compiler) {
|
|
if (typeof compiler.outputPath === 'string' && !path.posix.isAbsolute(compiler.outputPath) && !path.win32.isAbsolute(compiler.outputPath)) {
|
|
throw new DevMiddlewareError('`output.path` needs to be an absolute path or `/`.');
|
|
}
|
|
|
|
let fileSystem;
|
|
// store our files in memory
|
|
const isMemoryFs = !compiler.compilers && compiler.outputFileSystem instanceof MemoryFileSystem;
|
|
|
|
if (isMemoryFs) {
|
|
fileSystem = compiler.outputFileSystem;
|
|
} else {
|
|
fileSystem = new MemoryFileSystem();
|
|
compiler.outputFileSystem = fileSystem;
|
|
}
|
|
|
|
context.fs = fileSystem;
|
|
}
|
|
};
|