forked from zhurui/management
103 lines
2.8 KiB
JavaScript
103 lines
2.8 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const asyncLib = require("neo-async");
|
||
|
|
|
||
|
|
class CachePlugin {
|
||
|
|
constructor(cache) {
|
||
|
|
this.cache = cache || {};
|
||
|
|
this.FS_ACCURACY = 2000;
|
||
|
|
}
|
||
|
|
|
||
|
|
apply(compiler) {
|
||
|
|
if (Array.isArray(compiler.compilers)) {
|
||
|
|
compiler.compilers.forEach((c, idx) => {
|
||
|
|
new CachePlugin((this.cache[idx] = this.cache[idx] || {})).apply(c);
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
const registerCacheToCompiler = (compiler, cache) => {
|
||
|
|
compiler.hooks.thisCompilation.tap("CachePlugin", compilation => {
|
||
|
|
compilation.cache = cache;
|
||
|
|
compilation.hooks.childCompiler.tap(
|
||
|
|
"CachePlugin",
|
||
|
|
(childCompiler, compilerName, compilerIndex) => {
|
||
|
|
if (cache) {
|
||
|
|
let childCache;
|
||
|
|
if (!cache.children) {
|
||
|
|
cache.children = {};
|
||
|
|
}
|
||
|
|
if (!cache.children[compilerName]) {
|
||
|
|
cache.children[compilerName] = [];
|
||
|
|
}
|
||
|
|
if (cache.children[compilerName][compilerIndex]) {
|
||
|
|
childCache = cache.children[compilerName][compilerIndex];
|
||
|
|
} else {
|
||
|
|
cache.children[compilerName].push((childCache = {}));
|
||
|
|
}
|
||
|
|
registerCacheToCompiler(childCompiler, childCache);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
registerCacheToCompiler(compiler, this.cache);
|
||
|
|
compiler.hooks.watchRun.tap("CachePlugin", () => {
|
||
|
|
this.watching = true;
|
||
|
|
});
|
||
|
|
compiler.hooks.run.tapAsync("CachePlugin", (compiler, callback) => {
|
||
|
|
if (!compiler._lastCompilationFileDependencies) {
|
||
|
|
return callback();
|
||
|
|
}
|
||
|
|
const fs = compiler.inputFileSystem;
|
||
|
|
const fileTs = (compiler.fileTimestamps = new Map());
|
||
|
|
asyncLib.forEach(
|
||
|
|
compiler._lastCompilationFileDependencies,
|
||
|
|
(file, callback) => {
|
||
|
|
fs.stat(file, (err, stat) => {
|
||
|
|
if (err) {
|
||
|
|
if (err.code === "ENOENT") return callback();
|
||
|
|
return callback(err);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (stat.mtime) this.applyMtime(+stat.mtime);
|
||
|
|
|
||
|
|
fileTs.set(file, +stat.mtime || Infinity);
|
||
|
|
|
||
|
|
callback();
|
||
|
|
});
|
||
|
|
},
|
||
|
|
err => {
|
||
|
|
if (err) return callback(err);
|
||
|
|
|
||
|
|
for (const [file, ts] of fileTs) {
|
||
|
|
fileTs.set(file, ts + this.FS_ACCURACY);
|
||
|
|
}
|
||
|
|
|
||
|
|
callback();
|
||
|
|
}
|
||
|
|
);
|
||
|
|
});
|
||
|
|
compiler.hooks.afterCompile.tap("CachePlugin", compilation => {
|
||
|
|
compilation.compiler._lastCompilationFileDependencies =
|
||
|
|
compilation.fileDependencies;
|
||
|
|
compilation.compiler._lastCompilationContextDependencies =
|
||
|
|
compilation.contextDependencies;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* istanbul ignore next */
|
||
|
|
applyMtime(mtime) {
|
||
|
|
if (this.FS_ACCURACY > 1 && mtime % 2 !== 0) this.FS_ACCURACY = 1;
|
||
|
|
else if (this.FS_ACCURACY > 10 && mtime % 20 !== 0) this.FS_ACCURACY = 10;
|
||
|
|
else if (this.FS_ACCURACY > 100 && mtime % 200 !== 0)
|
||
|
|
this.FS_ACCURACY = 100;
|
||
|
|
else if (this.FS_ACCURACY > 1000 && mtime % 2000 !== 0)
|
||
|
|
this.FS_ACCURACY = 1000;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
module.exports = CachePlugin;
|