lightningcss-wasm - npm Package Compare versions

Comparing version 1.16.0 to 1.16.1

lightningcss_node.js

@@ -307,2 +307,7 @@
     };
+    imports.wbg.__wbindgen_is_object = function(arg0) {
+        const val = getObject(arg0);
+        var ret = typeof(val) === 'object' && val !== null;
+        return ret;
+    };
     imports.wbg.__wbindgen_boolean_get = function(arg0) {
@@ -313,7 +318,2 @@ const v = getObject(arg0);
     };
-    imports.wbg.__wbindgen_is_object = function(arg0) {
-        const val = getObject(arg0);
-        var ret = typeof(val) === 'object' && val !== null;
-        return ret;
-    };
     imports.wbg.__wbindgen_string_get = function(arg0, arg1) {
@@ -320,0 +320,0 @@ const obj = getObject(arg1);

package.json

 {
   "name": "lightningcss-wasm",
-  "version": "1.16.0",
+  "version": "1.16.1",
   "license": "MPL-2.0",
@@ -5,0 +5,0 @@ "description": "A CSS parser, transformer, and minifier written in Rust",

README.md

@@ -26,2 +26,3 @@ # ⚡️ Lightning CSS
 - **Vendor prefixing** – Lightning CSS accepts a list of browser targets, and automatically adds (and removes) vendor prefixes.
+- **Browserslist configuration** – Lightning CSS supports opt-in browserslist configuration discovery to resolve browser targets and integrate with your existing tools and config setup.
 - **Syntax lowering** – Lightning CSS parses modern CSS syntax, and generates more compatible output where needed, based on browser targets.
@@ -201,2 +202,42 @@ - CSS Nesting (draft spec)
 
+#### Browserslist configuration
+
+If the `--browserslist` option is provided, then `lightningcss` finds browserslist configuration,
+selects queries by environment and loads the resulting queries as targets.
+
+Configuration discovery and targets resolution is modeled after the original `browserslist` nodeJS package.
+The configuration is resolved in the following order:
+
+- If a `BROWSERSLIST` environment variable is present, then load targets from its value. This is analog to the `--targets` CLI option.
+  _Example:_ `BROWSERSLIST="firefox ESR" lightningcss [OPTIONS] <INPUT_FILE>`
+- If a `BROWSERSLIST_CONFIG` environment variable is present, then resolve the file at the provided path.
+  Then parse and use targets from `package.json` or any browserslist configuration file pointed to by the environment variable.
+  _Example:_ `BROWSERSLIST_CONFIG="../config/browserslist" lightningcss [OPTIONS] <INPUT_FILE>`
+- If none of the above apply, then find, parse and use targets from the first `browserslist`, `.browserslistrc`
+  or `package.json` configuration file in any parent directory.
+
+Browserslist configuration files may contain sections denoted by angular brackets `[]`.
+Use these to specify different targets for different environments.
+Targets which are not placed in a section are added to `defaults` and used if no section applies matches the environment.
+
+_Example:_
+
+```
+# Defaults, applied when no other section matches the provided environment.
+firefox ESR
+
+[staging]
+# Targets applied only to the staging environment.
+samsung >= 4
+```
+
+When using parsed configuration from `browserslist`, `.browserslistrc` or `package.json` configuration files,
+the environment determined by
+
+- the `BROWSERSLIST_ENV` environment variable if present,
+- otherwise the `NODE_ENV` environment variable if present,
+- otherwise `production` is used.
+
+If no targets are found for the resulting environment, then the `defaults` configuration section is used.
+
 ### Error recovery
@@ -212,3 +253,3 @@
 ```
-$ node bench.js bootstrap-4.css 
+$ node bench.js bootstrap-4.css
 cssnano: 544.809ms
@@ -235,3 +276,3 @@ 159636 bytes
 
-$ node bench.js tailwind.css 
+$ node bench.js tailwind.css
 cssnano: 2.198s
@@ -238,0 +279,0 @@ 1925626 bytes

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Total package byte prevSize

3899794

increased by0.1%

Number of lines in readme file

285

increased by16.8%

No dependency changes