Add ignore: ["inside-function"] to declaration-property-unit-allowed-list

lib/rules/color-named/index.js

@@ -24,7 +24,7 @@ const messages = ruleMessages(ruleName, {
 	rejected: (named) => `Unexpected named color "${named}"`,
 });
 
-// Todo tested on case insensivity
+// Todo tested on case insensitivity
 const NODE_TYPES = new Set(['word', 'function']);
 
 function rule(expectation, options) {

lib/rules/declaration-property-unit-allowed-list/README.md

@@ -83,3 +83,37 @@ a { animation-duration: 5s; }
 ```css
 a { line-height: 1; }
 ```
+
+## Optional secondary options
+
+### `ignore: ["inside-function"]`
+
+Ignore units that are inside a function.
+
+For example, given:
+
+```
+{
+  "/^border/": ["px"],
+  "/^background/": ["%"],
+},
+{
+  "ignore": ["inside-function"],
+},
+```
+
+The following patterns are _not_ considered violations:
+
+<!-- prettier-ignore -->
+```css
+a {
+  border: 1px solid hsla(162deg, 51%, 35%, 0.8);
+}
+```
+
+<!-- prettier-ignore -->
+```css
+a {
+  background-image: linear-gradient(hsla(162deg, 51%, 35%, 0.8), hsla(62deg, 51%, 35%, 0.8));
+}
+```

lib/rules/declaration-property-unit-allowed-list/__tests__/index.js

@@ -154,6 +154,10 @@ testRule({
 		{
 			code: 'a { -webkit-animation-duration: 300ms; }',
 		},
+		{
+			code:
+				'a { animation: 3ms cubic-bezier(.17,.67,.83,.67) 1ms infinite alternate none running slidein; }',
+		},
 	],
 
 	reject: [
@@ -175,3 +179,58 @@ testRule({
 		},
 	],
 });
+
+testRule({
+	ruleName,
+
+	config: [
+		{
+			'/^border/': ['px'],
+			'/^background/': ['%'],
+		},
+		{
+			ignore: ['inside-function'],
+		},
+	],
+
+	skipBasicChecks: true,
+
+	accept: [
+		{
+			code: 'a { border-color: hsla(162deg, 51%, 35%, 0.8); }',
+		},
+		{
+			code: 'a { border: 1px solid hsla(162deg, 51%, 35%, 0.8); }',
+		},
+		{
+			code:
+				'a { background-image: linear-gradient(hsla(162deg, 51%, 35%, 0.8), hsla(62deg, 51%, 35%, 0.8)); }',
+		},
+		{
+			code: 'a { background-image: url("https://example.com/img.png"); }',
+		},
+		{
+			code:
+				'a { background: center center / 50% 50% linear-gradient(hsla(162deg, 51%, 35%, 0.8), hsla(62deg, 51%, 35%, 0.8)); }',
+		},
+		{
+			code: 'a { background-color: var(--bg-color); }',
+		},
+	],
+
+	reject: [
+		{
+			code: 'a { border: 1rem solid hsla(162deg, 51%, 35%, 0.8); }',
+			message: messages.rejected('border', 'rem'),
+		},
+		{
+			code: 'a { background-position: 5rem 45%; }',
+			message: messages.rejected('background-position', 'rem'),
+		},
+		{
+			code:
+				'a { background: center center / 50px 10% linear-gradient(hsla(162deg, 51%, 35%, 0.8), hsla(62deg, 51%, 35%, 0.8)); }',
+			message: messages.rejected('background', 'px'),
+		},
+	],
+});

lib/rules/declaration-property-unit-allowed-list/index.js

@@ -6,6 +6,7 @@ const _ = require('lodash');
 const declarationValueIndex = require('../../utils/declarationValueIndex');
 const getUnitFromValueNode = require('../../utils/getUnitFromValueNode');
 const matchesStringOrRegExp = require('../../utils/matchesStringOrRegExp');
+const optionsMatches = require('../../utils/optionsMatches');
 const report = require('../../utils/report');
 const ruleMessages = require('../../utils/ruleMessages');
 const validateOptions = require('../../utils/validateOptions');
@@ -18,12 +19,23 @@ const messages = ruleMessages(ruleName, {
 	rejected: (property, unit) => `Unexpected unit "${unit}" for property "${property}"`,
 });
 
-function rule(list) {
+function rule(list, options) {
 	return (root, result) => {
-		const validOptions = validateOptions(result, ruleName, {
-			actual: list,
-			possible: [_.isObject],
-		});
+		const validOptions = validateOptions(
+			result,
+			ruleName,
+			{
+				actual: list,
+				possible: [_.isObject],
+			},
+			{
+				actual: options,
+				possible: {
+					ignore: ['inside-function'],
+				},
+				optional: true,
+			},
+		);
 
 		if (!validOptions) {
 			return;
@@ -45,8 +57,14 @@ function rule(list) {
 
 			valueParser(value).walk((node) => {
 				// Ignore wrong units within `url` function
-				if (node.type === 'function' && node.value.toLowerCase() === 'url') {
-					return false;
+				if (node.type === 'function') {
+					if (node.value.toLowerCase() === 'url') {
+						return false;
+					}
+
+					if (optionsMatches(options, 'ignore', 'inside-function')) {
+						return false;
+					}
 				}
 
 				if (node.type === 'string') {