create-js-app-scripts
Version:
Configuration and scripts for Create Js App.
76 lines (70 loc) • 2.4 kB
JavaScript
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var async = require("async");
function CachePlugin(cache) {
this.cache = cache || {};
this.FS_ACCURENCY = 2000;
}
module.exports = CachePlugin;
CachePlugin.prototype.apply = function(compiler) {
if(Array.isArray(compiler.compilers)) {
compiler.compilers.forEach(function(c, idx) {
c.apply(new CachePlugin(this.cache[idx] = this.cache[idx] || {}));
}, this);
} else {
var _this = this;
compiler.plugin("compilation", function(compilation) {
if(!compilation.notCacheable) {
compilation.cache = _this.cache;
} else if(_this.watching) {
compilation.warnings.push(
new Error("CachePlugin - Cache cannot be used because of: " + compilation.notCacheable)
);
}
});
compiler.plugin("watch-run", function(compiler, callback) {
_this.watching = true;
callback();
});
compiler.plugin("run", function(compiler, callback) {
if(!compiler._lastCompilationFileDependencies) return callback();
var fs = compiler.inputFileSystem;
var fileTs = compiler.fileTimestamps = {};
async.forEach(compiler._lastCompilationFileDependencies, function(file, callback) {
fs.stat(file, function(err, stat) {
if(err) {
if(err.code === "ENOENT") return callback();
return callback(err);
}
if(stat.mtime)
_this.applyMtime(+stat.mtime);
fileTs[file] = +stat.mtime || Infinity;
callback();
});
}, function(err) {
if(err) return callback(err);
Object.keys(fileTs).forEach(function(key) {
fileTs[key] += _this.FS_ACCURENCY;
});
callback();
});
});
compiler.plugin("after-compile", function(compilation, callback) {
compilation.compiler._lastCompilationFileDependencies = compilation.fileDependencies;
compilation.compiler._lastCompilationContextDependencies = compilation.contextDependencies;
callback();
});
}
};
CachePlugin.prototype.applyMtime = function applyMtime(mtime) {
if(this.FS_ACCURENCY > 1 && mtime % 2 !== 0)
this.FS_ACCURENCY = 1;
else if(this.FS_ACCURENCY > 10 && mtime % 20 !== 0)
this.FS_ACCURENCY = 10;
else if(this.FS_ACCURENCY > 100 && mtime % 200 !== 0)
this.FS_ACCURENCY = 100;
else if(this.FS_ACCURENCY > 1000 && mtime % 2000 !== 0)
this.FS_ACCURENCY = 1000;
};