141 lines
3.8 KiB
JavaScript
141 lines
3.8 KiB
JavaScript
'use strict';
|
|
|
|
const fs = require('fs');
|
|
const path = require('path');
|
|
|
|
const MemoryFileSystem = require('memory-fs');
|
|
const mkdirp = require('mkdirp');
|
|
const { colors } = require('webpack-log');
|
|
|
|
const DevMiddlewareError = require('./DevMiddlewareError');
|
|
|
|
module.exports = {
|
|
toDisk(context) {
|
|
const compilers = context.compiler.compilers || [context.compiler];
|
|
|
|
for (const compiler of compilers) {
|
|
compiler.hooks.emit.tap('WebpackDevMiddleware', (compilation) => {
|
|
if (compiler.hasWebpackDevMiddlewareAssetEmittedCallback) {
|
|
return;
|
|
}
|
|
|
|
compiler.hooks.assetEmitted.tapAsync(
|
|
'WebpackDevMiddleware',
|
|
(file, info, callback) => {
|
|
let targetPath = null;
|
|
let content = null;
|
|
|
|
// webpack@5
|
|
if (info.compilation) {
|
|
({ targetPath, content } = info);
|
|
} else {
|
|
let targetFile = file;
|
|
|
|
const queryStringIdx = targetFile.indexOf('?');
|
|
|
|
if (queryStringIdx >= 0) {
|
|
targetFile = targetFile.substr(0, queryStringIdx);
|
|
}
|
|
|
|
let { outputPath } = compiler;
|
|
|
|
// TODO Why? Need remove in future major release
|
|
if (outputPath === '/') {
|
|
outputPath = compiler.context;
|
|
}
|
|
|
|
outputPath = compilation.getPath(outputPath, {});
|
|
content = info;
|
|
targetPath = path.join(outputPath, targetFile);
|
|
}
|
|
|
|
const { writeToDisk: filter } = context.options;
|
|
const allowWrite =
|
|
filter && typeof filter === 'function'
|
|
? filter(targetPath)
|
|
: true;
|
|
|
|
if (!allowWrite) {
|
|
return callback();
|
|
}
|
|
|
|
const { log } = context;
|
|
const dir = path.dirname(targetPath);
|
|
|
|
return mkdirp(dir, (mkdirpError) => {
|
|
if (mkdirpError) {
|
|
return callback(mkdirpError);
|
|
}
|
|
|
|
return fs.writeFile(targetPath, content, (writeFileError) => {
|
|
if (writeFileError) {
|
|
return callback(writeFileError);
|
|
}
|
|
|
|
log.debug(
|
|
colors.cyan(
|
|
`Asset written to disk: ${path.relative(
|
|
process.cwd(),
|
|
targetPath
|
|
)}`
|
|
)
|
|
);
|
|
|
|
return callback();
|
|
});
|
|
});
|
|
}
|
|
);
|
|
compiler.hasWebpackDevMiddlewareAssetEmittedCallback = true;
|
|
});
|
|
}
|
|
},
|
|
|
|
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 isConfiguredFs = context.options.fs;
|
|
const isMemoryFs =
|
|
!isConfiguredFs &&
|
|
!compiler.compilers &&
|
|
compiler.outputFileSystem instanceof MemoryFileSystem;
|
|
|
|
if (isConfiguredFs) {
|
|
// eslint-disable-next-line no-shadow
|
|
const { fs } = context.options;
|
|
|
|
if (typeof fs.join !== 'function') {
|
|
// very shallow check
|
|
throw new Error(
|
|
'Invalid options: options.fs.join() method is expected'
|
|
);
|
|
}
|
|
|
|
// eslint-disable-next-line no-param-reassign
|
|
compiler.outputFileSystem = fs;
|
|
fileSystem = fs;
|
|
} else if (isMemoryFs) {
|
|
fileSystem = compiler.outputFileSystem;
|
|
} else {
|
|
fileSystem = new MemoryFileSystem();
|
|
|
|
// eslint-disable-next-line no-param-reassign
|
|
compiler.outputFileSystem = fileSystem;
|
|
}
|
|
|
|
// eslint-disable-next-line no-param-reassign
|
|
context.fs = fileSystem;
|
|
},
|
|
};
|