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produce asset hashed icons

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This commit is contained in:
RMidhunSuresh 2022-07-04 16:42:56 +05:30
parent 43e8cc9e52
commit c873804543
1 changed files with 40 additions and 3 deletions
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43
scripts/build-plugins/rollup-plugin-build-themes.js
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@ -14,10 +14,10 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
const path = require('path').posix;
const {optimize} = require('svgo');
async function readCSSSource(location) {
const fs = require("fs").promises;
const path = require("path");
const resolvedLocation = path.resolve(__dirname, "../../", `${location}/theme.css`);
const data = await fs.readFile(resolvedLocation);
return data;
@ -43,6 +43,28 @@ function addThemesToConfig(bundle, manifestLocations, defaultThemes) {
}
}
/**
* Returns an object where keys are the svg file names and the values
* are the svg code (optimized)
* @param {*} icons Object where keys are css variable names and values are locations of the svg
* @param {*} manifestLocation Location of manifest used for resolving path
*/
async function generateIconSourceMap(icons, manifestLocation) {
const sources = {};
const fs = require("fs").promises;
for (const icon of Object.values(icons)) {
const [location] = icon.split("?");
const resolvedLocation = path.resolve(__dirname, "../../", manifestLocation, location);
const iconData = await fs.readFile(resolvedLocation);
const svgString = iconData.toString();
const result = optimize(svgString);
const optimizedSvgString = result.data;
const fileName = path.basename(resolvedLocation);
sources[fileName] = optimizedSvgString;
}
return sources;
}
/**
* Returns a mapping from location (of manifest file) to an array containing all the chunks (of css files) generated from that location.
* To understand what chunk means in this context, see https://rollupjs.org/guide/en/#generatebundle.
@ -283,7 +305,7 @@ module.exports = function buildThemes(options) {
];
},
generateBundle(_, bundle) {
async generateBundle(_, bundle) {
const assetMap = getMappingFromFileNameToAssetInfo(bundle);
const chunkMap = getMappingFromLocationToChunkArray(bundle);
const runtimeThemeChunkMap = getMappingFromLocationToRuntimeChunk(bundle);
@ -304,13 +326,28 @@ module.exports = function buildThemes(options) {
const locationRelativeToManifest = path.relative(manifestLocation, locationRelativeToBuildRoot);
builtAssets[`${name}-${variant}`] = locationRelativeToManifest;
}
// Emit the base svg icons as asset
const nameToAssetHashedLocation = [];
const nameToSource = await generateIconSourceMap(icon, location);
for (const [name, source] of Object.entries(nameToSource)) {
const ref = this.emitFile({ type: "asset", name, source });
const assetHashedName = this.getFileName(ref);
nameToAssetHashedLocation[name] = assetHashedName;
}
for (const [variable, location] of Object.entries(icon)) {
const [locationWithoutQueryParameters, queryParameters] = location.split("?");
const name = path.basename(locationWithoutQueryParameters);
const locationRelativeToBuildRoot = nameToAssetHashedLocation[name];
const locationRelativeToManifest = path.relative(manifestLocation, locationRelativeToBuildRoot);
icon[variable] = `${locationRelativeToManifest}?${queryParameters}`;
}
const runtimeThemeChunk = runtimeThemeChunkMap.get(location);
const runtimeAssetLocation = path.relative(manifestLocation, assetMap.get(runtimeThemeChunk.fileName).fileName);
manifest.source = {
"built-assets": builtAssets,
"runtime-asset": runtimeAssetLocation,
"derived-variables": derivedVariables,
"icon": icon
"icon": icon,
};
const name = `theme-${themeKey}.json`;
manifestLocations.push(`${manifestLocation}/${name}`);