cssnano - npm Package Compare versions

Comparing version 8.0.10 to 9.0.0

package.json

 {
   "name": "cssnano",
-  "version": "8.0.10",
+  "version": "9.0.0",
   "description": "A modular CSS minifier, built on top of the PostCSS ecosystem.",
@@ -9,7 +9,3 @@ "exports": {
       "default": "./src/index.js"
-    },
-    "./src": "./src/index.js",
-    "./src/index": "./src/index.js",
-    "./src/index.js": "./src/index.js",
-    "./package.json": "./package.json"
+    }
   },
@@ -31,4 +27,3 @@ "funding": {
   "dependencies": {
-    "cssnano-preset-default": "^8.0.10",
-    "lilconfig": "^3.1.3"
+    "cssnano-preset-default": "^9.0.0"
   },
@@ -54,8 +49,8 @@ "homepage": "https://github.com/cssnano/cssnano",
   "engines": {
-    "node": "^22.11.0 || ^24.11.0 || >=26.0"
+    "node": "^22.22.3 || ^24.15.0 || >=26.0"
   },
   "devDependencies": {
     "autoprefixer": "^10.5.4",
-    "cssnano-preset-advanced": "^8.0.10",
-    "cssnano-preset-lite": "^5.0.6",
+    "cssnano-preset-advanced": "^9.0.0",
+    "cssnano-preset-lite": "^6.0.0",
     "postcss": "^8.5.26",
@@ -67,2 +62,3 @@ "postcss-font-magician": "^4.0.0"
   },
+  "type": "module",
   "scripts": {
@@ -69,0 +65,0 @@ "test": "node --test"

src/index.js

@@ -1,9 +0,11 @@
-'use strict';
-const path = require('node:path');
-const postcss = require('postcss');
-const { lilconfigSync } = require('lilconfig');
-const defaultPreset = require('cssnano-preset-default');
+import { createRequire } from 'node:module';
+import fs from 'node:fs';
+import path from 'node:path';
+import postcss from 'postcss';
+import defaultPreset from 'cssnano-preset-default';
 
-const cssnano = 'cssnano';
+const require = createRequire(import.meta.url);
 
+const configFileNames = ['.cssnanorc.json', 'cssnano.config.js'];
+
 /** @typedef {boolean | { exclude?: boolean } | void | undefined} PluginOptions */
@@ -51,3 +53,3 @@ /** @typedef {import('postcss').PluginCreator<any>} PluginCreator */
   // For JS setups where we invoked the preset already
-  if (fn.plugins) {
+  if (typeof fn === 'object' && fn !== null && 'plugins' in fn) {
     return fn.plugins;
@@ -71,7 +73,9 @@ }
 
-  const sugar = `cssnano-preset-${fn}`;
-
-  // Try loading a preset from node_modules (sugar)
-  if (isResolvable(sugar)) {
-    return require(sugar)(options).plugins;
+  // Only the built-in preset names support shorthand resolution. Other
+  // strings must be passed to the module resolver unchanged.
+  if (fn === 'lite' || fn === 'advanced') {
+    const sugar = `cssnano-preset-${fn}`;
+    if (isResolvable(sugar)) {
+      return require(sugar)(options).plugins;
+    }
   }
@@ -86,44 +90,69 @@
 /**
- * cssnano will look for configuration firstly as options passed
- * directly to it, and failing this it will use lilconfig to
- * load an external file.
+ * @param {string} filePath
+ * @returns {unknown}
+ */
+function loadConfigFile(filePath) {
+  if (filePath.endsWith('.json')) {
+    return JSON.parse(fs.readFileSync(filePath, 'utf8'));
+  }
+  const config = createRequire(filePath)(filePath);
+  if (
+    config !== null &&
+    typeof config === 'object' &&
+    Object.prototype.toString.call(config) === '[object Module]' &&
+    'default' in config
+  ) {
+    return config.default;
+  }
+  return config;
+}
 
+/**
+ * @param {string} [configFile]
+ * @returns {unknown | null}
+ */
+function loadDiscoveredConfig(configFile) {
+  if (configFile) {
+    const configPath = path.resolve(process.cwd(), configFile);
+    if (!fs.existsSync(configPath)) {
+      throw new Error(
+        `Cannot find cssnano configuration file "${configFile}".`
+      );
+    }
+    return loadConfigFile(configPath);
+  }
+
+  for (const fileName of configFileNames) {
+    const configPath = path.join(process.cwd(), fileName);
+    if (!fs.existsSync(configPath)) continue;
+    return loadConfigFile(configPath);
+  }
+  return null;
+}
+
+/**
  * @param {Options} options
+ * @returns {PresetPlugin[]}
  */
 function resolveConfig(options) {
   if (options.preset) {
+    if (
+      Array.isArray(options.preset) &&
+      /** @type {unknown[]} */ (options.preset).length === 0
+    ) {
+      return [];
+    }
     return resolvePreset(options.preset);
   }
+  if (Array.isArray(options.plugins)) return [];
 
-  /** @type {string | undefined} */
-  let searchPath = process.cwd();
-  let configPath = undefined;
-
-  if (options.configFile) {
-    searchPath = undefined;
-    configPath = path.resolve(process.cwd(), options.configFile);
-  }
-
-  const configExplorer = lilconfigSync(cssnano, {
-    searchPlaces: [
-      'package.json',
-      '.cssnanorc',
-      '.cssnanorc.json',
-      '.cssnanorc.js',
-      'cssnano.config.js',
-    ],
-  });
-  const config = configPath
-    ? configExplorer.load(configPath)
-    : configExplorer.search(searchPath);
-
-  if (config === null) {
-    return resolvePreset('default');
-  }
-
-  return resolvePreset(config.config.preset || config.config);
+  const config = loadDiscoveredConfig(options.configFile);
+  const preset =
+    config !== null && typeof config === 'object' && 'preset' in config
+      ? config.preset
+      : config;
+  return resolvePreset(config === null ? 'default' : preset);
 }
 
 /**
- * @type {import('postcss').PluginCreator<Options>}
  * @param {Options=} options
@@ -133,14 +162,6 @@ * @return {import('postcss').Processor}
 function cssnanoPlugin(options = {}) {
-  /** @typedef {Options & { preset: { plugins: PresetPlugin[] } }} MutableOptions */
-  if (Array.isArray(/** @type {MutableOptions} */ (options).plugins)) {
-    if (
-      !(/** @type {MutableOptions} */ (options).preset) ||
-      !(/** @type {MutableOptions} */ (options).preset.plugins)
-    ) {
-      /** @type {MutableOptions} */ (options).preset = { plugins: [] };
-    }
-
-    const inputPlugins = /** @type {PluginSpec[]} */ (
-      /** @type {MutableOptions} */ (options).plugins
-    );
+  let nanoPlugins = resolveConfig(options);
+  if (Array.isArray(options.plugins)) {
+    nanoPlugins = nanoPlugins.slice();
+    const inputPlugins = options.plugins;
     for (const plugin of inputPlugins) {
@@ -150,22 +171,13 @@ if (Array.isArray(plugin)) {
         if (typeof pluginDef === 'string' && isResolvable(pluginDef)) {
-          /** @type {MutableOptions} */ (options).preset.plugins.push([
-            require(pluginDef),
+          nanoPlugins.push([
+            /** @type {PluginCreator} */ (require(pluginDef)),
             opts,
           ]);
         } else {
-          /** @type {MutableOptions} */ (options).preset.plugins.push([
-            /** @type {PluginCreator} */ (pluginDef),
-            opts,
-          ]);
+          nanoPlugins.push([/** @type {PluginCreator} */ (pluginDef), opts]);
         }
       } else if (typeof plugin === 'string' && isResolvable(plugin)) {
-        /** @type {MutableOptions} */ (options).preset.plugins.push([
-          require(plugin),
-          {},
-        ]);
+        nanoPlugins.push([/** @type {PluginCreator} */ (require(plugin)), {}]);
       } else {
-        /** @type {MutableOptions} */ (options).preset.plugins.push([
-          /** @type {PluginCreator} */ (plugin),
-          {},
-        ]);
+        nanoPlugins.push([/** @type {PluginCreator} */ (plugin), {}]);
       }
@@ -175,3 +187,2 @@ }
   const plugins = [];
-  const nanoPlugins = resolveConfig(options);
   for (const nanoPlugin of nanoPlugins) {
@@ -194,3 +205,5 @@ if (Array.isArray(nanoPlugin)) {
 
+/** @type {true} */
 cssnanoPlugin.postcss = true;
-module.exports = cssnanoPlugin;
+
+export { cssnanoPlugin as default, cssnanoPlugin as 'module.exports' };

types/index.d.ts

@@ -1,3 +0,1 @@
-export = cssnanoPlugin;
-import postcss = require('postcss');
 export type PluginOptions = boolean | {
@@ -21,7 +19,11 @@ exclude?: boolean;
 /**
- * @type {import('postcss').PluginCreator<Options>}
  * @param {Options=} options
  * @return {import('postcss').Processor}
  */
-declare function cssnanoPlugin(options?: {}): postcss.Processor;
+declare function cssnanoPlugin(options?: Options | undefined): import('postcss').Processor;
+declare namespace cssnanoPlugin {
+    var _a: true;
+    export { _a as postcss };
+}
+export { cssnanoPlugin as default, cssnanoPlugin as 'module.exports' };
 //# sourceMappingURL=index.d.ts.map

types/index.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.js"],"names":[],"mappings":"SA4LiB,aAAa;OA1LxB,OAAO,WAAW,SAAS;AAM7B,YAA8D,aAAa,GAAjE,OAAO,GAAG;IAAE,OAAO,CAAC,EAAE,OAAO,CAAA;CAAE,GAAG,IAAI,GAAG,SAAS,CAAe;AAC3E,YAAgD,aAAa,GAAnD,OAAO,SAAS,EAAE,aAAa,CAAC,GAAG,CAAC,CAAe;AAC7D,YAA0C,YAAY,GAA5C,CAAC,aAAa,EAAE,aAAa,CAAC,CAAc;AACtD,YAA0D,aAAa,GAA7D,CAAC,OAAO,CAAC,EAAE,GAAG,KAAK;IAAE,OAAO,EAAE,YAAY,EAAE,CAAA;CAAE,CAAe;AACvE,YAAmG,UAAU,GAAnG,MAAM,GAAG,aAAa,GAAG,CAAC,MAAM,GAAG,aAAa,EAAE,MAAM,CAAC,GAAG;IAAE,OAAO,EAAE,YAAY,EAAE,CAAA;CAAE,CAAY;AAC7G,YAAsE,UAAU,GAAtE,MAAM,GAAG,aAAa,GAAG,CAAC,MAAM,GAAG,aAAa,EAAE,MAAM,CAAC,CAAC,CAAY;AAChF,YAAgF,OAAO,GAA7E;IAAE,MAAM,CAAC,EAAE,UAAU,CAAC;IAAC,OAAO,CAAC,EAAE,UAAU,EAAE,CAAC;IAAC,UAAU,CAAC,EAAE,MAAM,CAAA;CAAE,CAAS;AA6G3F;;;;GAIG;AACH,iBAAS,aAAa,CAAC,OAAO,KAAK,qBAyDlC"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.js"],"names":[],"mappings":"AAUI,YAA8D,aAAa,GAAjE,OAAO,GAAG;IAAE,OAAO,CAAC,EAAE,OAAO,CAAA;CAAE,GAAG,IAAI,GAAG,SAAS,CAAe;AAC3E,YAAgD,aAAa,GAAnD,OAAO,SAAS,EAAE,aAAa,CAAC,GAAG,CAAC,CAAe;AAC7D,YAA0C,YAAY,GAA5C,CAAC,aAAa,EAAE,aAAa,CAAC,CAAc;AACtD,YAA0D,aAAa,GAA7D,CAAC,OAAO,CAAC,EAAE,GAAG,KAAK;IAAE,OAAO,EAAE,YAAY,EAAE,CAAA;CAAE,CAAe;AACvE,YAAmG,UAAU,GAAnG,MAAM,GAAG,aAAa,GAAG,CAAC,MAAM,GAAG,aAAa,EAAE,MAAM,CAAC,GAAG;IAAE,OAAO,EAAE,YAAY,EAAE,CAAA;CAAE,CAAY;AAC7G,YAAsE,UAAU,GAAtE,MAAM,GAAG,aAAa,GAAG,CAAC,MAAM,GAAG,aAAa,EAAE,MAAM,CAAC,CAAC,CAAY;AAChF,YAAgF,OAAO,GAA7E;IAAE,MAAM,CAAC,EAAE,UAAU,CAAC;IAAC,OAAO,CAAC,EAAE,UAAU,EAAE,CAAC;IAAC,UAAU,CAAC,EAAE,MAAM,CAAA;CAAE,CAAS;AAyI3F;;;GAGG;AACH,iBAAS,aAAa,CAAC,OAAO,AAH3B,CACA,EADQ,OAAO,YAGiB,GAFvB,OAAO,SAAS,EAAE,SAAS,CAyCtC;kBAvCQ,aAAa;YAyCX,IAAI;;;AAGf,OAAO,EAAE,aAAa,IAAI,OAAO,EAAE,aAAa,IAAI,gBAAgB,EAAE,CAAC"}

New alerts

Debug access

Supply chain risk

Uses debug, reflection and dynamic code execution features.

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Improved metrics

Total package byte prevSize

10215

4.06%

Dependency count

2

-33.33%

Lines of code

210

8.81%

Is type module

Yes

NaN

Worsened metrics

Number of low supply chain risk alerts

6

50%

Dependency changes

• + Added

  @csstools/css-parser-algorithms@4.0.0
  (transitive)

• + Added

  @csstools/css-tokenizer@4.0.0
  (transitive)

• + Added

  cssnano-preset-default@9.0.1
  (transitive)

• + Added

  cssnano-utils@7.0.0
  (transitive)

• + Added

  postcss-calc@11.0.1
  (transitive)

• + Added

  postcss-colormin@9.0.0
  (transitive)

• + Added

  postcss-convert-values@9.0.0
  (transitive)

• + Added

  postcss-discard-comments@9.0.0
  (transitive)

• + Added

  postcss-discard-duplicates@9.0.0
  (transitive)

• + Added

  postcss-discard-empty@9.0.0
  (transitive)

• + Added

  postcss-discard-overridden@9.0.0
  (transitive)

• + Added

  postcss-merge-longhand@9.0.1
  (transitive)

• + Added

  postcss-merge-rules@9.0.1
  (transitive)

• + Added

  postcss-minify-font-values@9.0.0
  (transitive)

• + Added

  postcss-minify-gradients@9.0.0
  (transitive)

• + Added

  postcss-minify-params@9.0.0
  (transitive)

• + Added

  postcss-minify-selectors@9.0.1
  (transitive)

• + Added

  postcss-normalize-charset@9.0.0
  (transitive)

• + Added

  postcss-normalize-display-values@9.0.0
  (transitive)

• + Added

  postcss-normalize-positions@9.0.0
  (transitive)

• + Added

  postcss-normalize-repeat-style@9.0.0
  (transitive)

• + Added

  postcss-normalize-string@9.0.0
  (transitive)

• + Added

  postcss-normalize-timing-functions@9.0.0
  (transitive)

• + Added

  postcss-normalize-unicode@9.0.0
  (transitive)

• + Added

  postcss-normalize-url@9.0.0
  (transitive)

• + Added

  postcss-normalize-whitespace@9.0.0
  (transitive)

• + Added

  postcss-ordered-values@9.0.0
  (transitive)

• + Added

  postcss-reduce-initial@9.0.0
  (transitive)

• + Added

  postcss-reduce-transforms@9.0.0
  (transitive)

• + Added

  postcss-svgo@9.0.0
  (transitive)

• + Added

  postcss-unique-selectors@9.0.0
  (transitive)

• + Added

  stylehacks@9.0.1
  (transitive)

• - Removed

  lilconfig@^3.1.3

• - Removed

  cssnano-preset-default@8.0.10
  (transitive)

• - Removed

  cssnano-utils@6.0.4
  (transitive)

• - Removed

  lilconfig@3.1.3
  (transitive)

• - Removed

  postcss-calc@10.1.1
  (transitive)

• - Removed

  postcss-colormin@8.0.5
  (transitive)

• - Removed

  postcss-convert-values@8.0.4
  (transitive)

• - Removed

  postcss-discard-comments@8.0.4
  (transitive)

• - Removed

  postcss-discard-duplicates@8.0.4
  (transitive)

• - Removed

  postcss-discard-empty@8.0.5
  (transitive)

• - Removed

  postcss-discard-overridden@8.0.4
  (transitive)

• - Removed

  postcss-merge-longhand@8.0.4
  (transitive)

• - Removed

  postcss-merge-rules@8.0.5
  (transitive)

• - Removed

  postcss-minify-font-values@8.0.4
  (transitive)

• - Removed

  postcss-minify-gradients@8.0.6
  (transitive)

• - Removed

  postcss-minify-params@8.0.4
  (transitive)

• - Removed

  postcss-minify-selectors@8.0.5
  (transitive)

• - Removed

  postcss-normalize-charset@8.0.5
  (transitive)

• - Removed

  postcss-normalize-display-values@8.0.4
  (transitive)

• - Removed

  postcss-normalize-positions@8.0.4
  (transitive)

• - Removed

  postcss-normalize-repeat-style@8.0.4
  (transitive)

• - Removed

  postcss-normalize-string@8.0.4
  (transitive)

• - Removed

  postcss-normalize-timing-functions@8.0.4
  (transitive)

• - Removed

  postcss-normalize-unicode@8.0.4
  (transitive)

• - Removed

  postcss-normalize-url@8.0.4
  (transitive)

• - Removed

  postcss-normalize-whitespace@8.0.5
  (transitive)

• - Removed

  postcss-ordered-values@8.0.5
  (transitive)

• - Removed

  postcss-reduce-initial@8.0.5
  (transitive)

• - Removed

  postcss-reduce-transforms@8.0.4
  (transitive)

• - Removed

  postcss-svgo@8.0.6
  (transitive)

• - Removed

  postcss-unique-selectors@8.0.4
  (transitive)

• - Removed

  stylehacks@8.0.4
  (transitive)

• Updated

  cssnano-preset-default@^9.0.0