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Find list of resolved colors from result

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and also throw only if secondary color was provided
This commit is contained in:
RMidhunSuresh 2022-03-27 20:00:43 +05:30
parent 8c6400ab2c
commit 7046fcc7c7
1 changed files with 16 additions and 9 deletions
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25
scripts/postcss/css-url-processor.js
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@ -17,25 +17,25 @@ limitations under the License.
const valueParser = require("postcss-value-parser");
const resolve = require("path").resolve;
function colorsFromURL(url, colorVariables) {
function colorsFromURL(url, colorMap) {
const params = new URL(`file://${url}`).searchParams;
const primary = params.get("primary");
if (!primary) {
return null;
}
const secondary = params.get("secondary");
const primaryColor = colorVariables[primary];
const secondaryColor = colorVariables[secondary];
const primaryColor = colorMap.get(primary);
const secondaryColor = colorMap.get(secondary);
if (!primaryColor) {
throw new Error(`Variable ${primary} not found in resolved color variables!`);
}
if (!secondaryColor) {
if (secondary && !secondaryColor) {
throw new Error(`Variable ${secondary} not found in resolved color variables!`);
}
return [primaryColor, secondaryColor];
}
function processURL(decl, replacer, colorVariables) {
function processURL(decl, replacer, colorMap) {
const value = decl.value;
const parsed = valueParser(value);
parsed.walk(async node => {
@ -46,7 +46,7 @@ function processURL(decl, replacer, colorVariables) {
const oldURL = urlStringNode.value;
const cssPath = decl.source?.input.file.replace(/[^/]*$/, "");
const oldURLAbsolute = resolve(cssPath, oldURL);
const colors = colorsFromURL(oldURLAbsolute, colorVariables);
const colors = colorsFromURL(oldURLAbsolute, colorMap);
if (!colors) {
// If no primary color is provided via url params, then this url need not be handled.
return;
@ -67,15 +67,22 @@ module.exports = (opts = {}) => {
return {
postcssPlugin: "postcss-url-to-variable",
Once(root) {
Once(root, {result}) {
/*
postcss-compile-variables should have sent the list of resolved colours down via results
*/
const {colorMap} = result.messages.find(m => m.type === "resolved-variable-map");
if (!colorMap) {
throw new Error("Postcss results do not contain resolved colors!");
}
/*
Go through each declaration and if it contains an URL, replace the url with the result
of running replacer(url)
*/
root.walkDecls(decl => processURL(decl, opts.replacer, opts.colors));
root.walkDecls(decl => processURL(decl, opts.replacer, colorMap));
console.log("result", colorMap);
},
};
};
module.exports.postcss = true;