mirror of https://github.com/webpack/webpack.git
92 lines
2.8 KiB
JavaScript
92 lines
2.8 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
function OccurrenceOrderPlugin(preferEntry) {
|
|
if(preferEntry !== undefined && typeof preferEntry !== "boolean") {
|
|
throw new Error("Argument should be a boolean.\nFor more info on this plugin, see https://webpack.github.io/docs/list-of-plugins.html");
|
|
}
|
|
this.preferEntry = preferEntry;
|
|
}
|
|
module.exports = OccurrenceOrderPlugin;
|
|
OccurrenceOrderPlugin.prototype.apply = function(compiler) {
|
|
var preferEntry = this.preferEntry;
|
|
compiler.plugin("compilation", function(compilation) {
|
|
compilation.plugin("optimize-module-order", function(modules) {
|
|
function entryChunks(m) {
|
|
return m.chunks.filter(function(c) {
|
|
return c.initial;
|
|
}).length;
|
|
}
|
|
|
|
function occursInEntry(m) {
|
|
return m.reasons.map(function(r) {
|
|
if(!r.module) return 0;
|
|
return entryChunks(r.module);
|
|
}).reduce(function(a, b) {
|
|
return a + b;
|
|
}, 0) + entryChunks(m);
|
|
}
|
|
|
|
function occurs(m) {
|
|
return m.reasons.map(function(r) {
|
|
if(!r.module) return 0;
|
|
return r.module.chunks.length;
|
|
}).reduce(function(a, b) {
|
|
return a + b;
|
|
}, 0) + m.chunks.length;
|
|
}
|
|
modules.sort(function(a, b) {
|
|
if(preferEntry) {
|
|
var aEntryOccurs = occursInEntry(a);
|
|
var bEntryOccurs = occursInEntry(b);
|
|
if(aEntryOccurs > bEntryOccurs) return -1;
|
|
if(aEntryOccurs < bEntryOccurs) return 1;
|
|
}
|
|
var aOccurs = occurs(a);
|
|
var bOccurs = occurs(b);
|
|
if(aOccurs > bOccurs) return -1;
|
|
if(aOccurs < bOccurs) return 1;
|
|
if(a.identifier() > b.identifier()) return 1;
|
|
if(a.identifier() < b.identifier()) return -1;
|
|
return 0;
|
|
});
|
|
});
|
|
compilation.plugin("optimize-chunk-order", function(chunks) {
|
|
function occursInEntry(c) {
|
|
return c.parents.filter(function(p) {
|
|
return p.initial;
|
|
}).length + (c.entry ? 1 : 0);
|
|
}
|
|
|
|
function occurs(c) {
|
|
return c.blocks.length + (c.entry ? 1 : 0);
|
|
}
|
|
chunks.forEach(function(c) {
|
|
c.modules.sort(function(a, b) {
|
|
if(a.identifier() > b.identifier()) return 1;
|
|
if(a.identifier() < b.identifier()) return -1;
|
|
return 0;
|
|
});
|
|
});
|
|
chunks.sort(function(a, b) {
|
|
var aEntryOccurs = occursInEntry(a);
|
|
var bEntryOccurs = occursInEntry(b);
|
|
if(aEntryOccurs > bEntryOccurs) return -1;
|
|
if(aEntryOccurs < bEntryOccurs) return 1;
|
|
var aOccurs = occurs(a);
|
|
var bOccurs = occurs(b);
|
|
if(aOccurs > bOccurs) return -1;
|
|
if(aOccurs < bOccurs) return 1;
|
|
if(a.modules.length > b.modules.length) return -1;
|
|
if(a.modules.length < b.modules.length) return 1;
|
|
for(var i = 0; i < a.modules.length; i++) {
|
|
if(a.modules[i].identifier() > b.modules[i].identifier()) return -1;
|
|
if(a.modules[i].identifier() < b.modules[i].identifier()) return 1;
|
|
}
|
|
return 0;
|
|
});
|
|
});
|
|
});
|
|
};
|