diff options
| author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
|---|---|---|
| committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
| commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
| tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/webpack/lib/optimize/LimitChunkCountPlugin.js | |
| parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
node_modules
Diffstat (limited to 'node_modules/webpack/lib/optimize/LimitChunkCountPlugin.js')
| -rw-r--r-- | node_modules/webpack/lib/optimize/LimitChunkCountPlugin.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/optimize/LimitChunkCountPlugin.js b/node_modules/webpack/lib/optimize/LimitChunkCountPlugin.js new file mode 100644 index 000000000..c156338ff --- /dev/null +++ b/node_modules/webpack/lib/optimize/LimitChunkCountPlugin.js @@ -0,0 +1,59 @@ +/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+class LimitChunkCountPlugin {
+ constructor(options) {
+ if(options !== undefined && typeof options !== "object" || Array.isArray(options)) {
+ throw new Error("Argument should be an options object.\nFor more info on options, see https://webpack.js.org/plugins/");
+ }
+ this.options = options || {};
+ }
+ apply(compiler) {
+ const options = this.options;
+ compiler.plugin("compilation", (compilation) => {
+ compilation.plugin("optimize-chunks-advanced", (chunks) => {
+ const maxChunks = options.maxChunks;
+ if(!maxChunks) return;
+ if(maxChunks < 1) return;
+ if(chunks.length <= maxChunks) return;
+
+ if(chunks.length > maxChunks) {
+ const sortedExtendedPairCombinations = chunks.reduce((combinations, a, idx) => {
+ // create combination pairs
+ for(let i = 0; i < idx; i++) {
+ const b = chunks[i];
+ combinations.push([b, a]);
+ }
+ return combinations;
+ }, []).map((pair) => {
+ // extend combination pairs with size and integrated size
+ const a = pair[0].size(options);
+ const b = pair[1].size(options);
+ const ab = pair[0].integratedSize(pair[1], options);
+ return [a + b - ab, ab, pair[0], pair[1], a, b];
+ }).filter((extendedPair) => {
+ // filter pairs that do not have an integratedSize
+ // meaning they can NOT be integrated!
+ return extendedPair[1] !== false;
+ }).sort((a, b) => { // sadly javascript does an inplace sort here
+ // sort them by size
+ const diff = b[0] - a[0];
+ if(diff !== 0) return diff;
+ return a[1] - b[1];
+ });
+
+ const pair = sortedExtendedPairCombinations[0];
+
+ if(pair && pair[2].integrate(pair[3], "limit")) {
+ chunks.splice(chunks.indexOf(pair[3]), 1);
+ return true;
+ }
+ }
+ });
+ });
+ }
+}
+module.exports = LimitChunkCountPlugin;
|