first commit

build/node_modules/postcss-minify-params/dist/index.js

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+var postcss = require('postcss');
+var valueParser = require('postcss-value-parser');
+var stringify = valueParser.stringify;
+var sort = require('alphanum-sort');
+var uniqs = require('uniqs');
+
+/**
+ * Return the greatest common divisor
+ * of two numbers.
+ */
+
+function gcd(a, b) {
+    return b ? gcd(b, a % b) : a;
+}
+
+function aspectRatio(a, b) {
+    var divisor = gcd(a, b);
+
+    return [a / divisor, b / divisor];
+}
+
+function split(nodes, div) {
+    var result = [];
+    var i, max, node;
+    var last = '';
+
+    for (i = 0, max = nodes.length; i < max; i += 1) {
+        node = nodes[i];
+        if (node.type === 'div' && node.value === div) {
+            result.push(last);
+            last = '';
+        } else {
+            last += stringify(node);
+        }
+    }
+
+    result.push(last);
+
+    return result;
+}
+
+function removeNode(node) {
+    node.value = '';
+    node.type = 'word';
+}
+
+module.exports = postcss.plugin('postcss-minify-params', function () {
+    return function (css) {
+        css.walkAtRules(function (rule) {
+            if (!rule.params) {
+                return;
+            }
+
+            var params = valueParser(rule.params);
+
+            params.walk(function (node, index) {
+                if (node.type === 'div' || node.type === 'function') {
+                    node.before = node.after = '';
+                    if (
+                        node.type === 'function' &&
+                        node.nodes[4] &&
+                        node.nodes[0].value.indexOf('-aspect-ratio') === 3
+                    ) {
+                        var ref = aspectRatio(
+                            node.nodes[2].value,
+                            node.nodes[4].value
+                        );
+                        var a = ref[0];
+                        var b = ref[1];
+                        node.nodes[2].value = a;
+                        node.nodes[4].value = b;
+                    }
+                } else if (node.type === 'space') {
+                    node.value = ' ';
+                } else if (node.type === 'word') {
+                    var prevWord = params.nodes[index - 2];
+                    if (
+                        node.value === 'all' &&
+                        rule.name === 'media' &&
+                        !prevWord
+                    ) {
+                        var nextSpace = params.nodes[index + 1];
+                        var nextWord = params.nodes[index + 2];
+                        var secondSpace = params.nodes[index + 3];
+                        if (nextWord && nextWord.value === 'and') {
+                            removeNode(nextWord);
+                            removeNode(nextSpace);
+                            if (secondSpace) {
+                                removeNode(secondSpace);
+                            }
+                        }
+                        removeNode(node);
+                    }
+                }
+            }, true);
+
+            rule.params = sort(uniqs(split(params.nodes, ',')), {
+                insensitive: true
+            }).join();
+
+            if (!rule.params.length) {
+                rule.raws.afterName = '';
+            }
+        });
+    };
+});