From 4993aaf41e132dd0805bf6c487901d9f2aecfcfe Mon Sep 17 00:00:00 2001
From: Arpit Chakladar <54011232+arpitchakladar@users.noreply.github.com>
Date: Wed, 8 Feb 2023 13:54:04 +0530
Subject: Combining similar scripts into 1 for improved performence and less
 files in build.

---
 .../sanitize-scripts-import-webpack-plugin.js      | 56 ++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 config/webpack/plugins/sanitize-scripts-import-webpack-plugin.js

(limited to 'config/webpack/plugins/sanitize-scripts-import-webpack-plugin.js')

diff --git a/config/webpack/plugins/sanitize-scripts-import-webpack-plugin.js b/config/webpack/plugins/sanitize-scripts-import-webpack-plugin.js
new file mode 100644
index 0000000..61ce804
--- /dev/null
+++ b/config/webpack/plugins/sanitize-scripts-import-webpack-plugin.js
@@ -0,0 +1,56 @@
+const { sources } = require("webpack");
+
+const propectualIndexOf = (string, characterList, start) => {
+	if (start > 0) {
+		let i = 0;
+		let x = start;
+		while (i < characterList.length) {
+			x = string.indexOf(characterList[i], x + 1);
+			if (x < 0) {
+				return -1;
+			}
+			i++;
+		}
+		return x;
+	} else {
+		return -1;
+	}
+};
+
+class SanitizeScriptsImportPlugin {
+	apply(compiler) {
+		compiler.hooks.compilation.tap("SanitizeScriptsImportPlugin", compilation => {
+			compilation.hooks.processAssets.tap(
+				{
+					name: "SanitizeScriptsImportPlugin",
+					stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE,
+					additionalAssets: true
+				},
+				assets => {
+					for (const assetName in assets) {
+						if (assetName.endsWith(".js")) {
+							const currentAssetContent = compilation.getAsset(assetName).source.source();
+							let previouslyEnded = 0;
+							let code = "";
+							while (true) {
+								const start = propectualIndexOf(currentAssetContent, ["\n/***/", "\n/***/", "\n"], previouslyEnded + 1);
+								previouslyEnded = propectualIndexOf(currentAssetContent, ["\n/***/"], start + 1);
+								if (previouslyEnded < 0) {
+									break;
+								} else {
+									code += currentAssetContent.substring(start, previouslyEnded);
+								}
+							}
+							compilation.updateAsset(
+								assetName,
+								new sources.RawSource(code)
+							);
+						}
+					}
+				}
+			);
+		});
+	}
+}
+
+module.exports = SanitizeScriptsImportPlugin;
-- 
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