fix(ci): center-crop non-square logos before tauri icon generation

tauri icon requires a square source image. Uploaded logos like 727x721
caused Prepare template to fail. Use sharp to center-crop to square
before generating platform icons.

Co-authored-by: ShuMengya <shumengya666@outlook.com>

.github/scripts/generate-app-icons.mjs

@@ -1,7 +1,9 @@
 import { execSync } from "node:child_process";
 import fs from "node:fs";
+import os from "node:os";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
+import sharp from "sharp";
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const root = path.resolve(__dirname, "../..");
@@ -37,16 +39,48 @@ function findIconSource(baseDir) {
   return null;
 }
 
-export function findIconSourceForJob(root, jobId, distDir) {
-  const buildDir = jobId ? path.join(root, "builds", jobId) : null;
+export function findIconSourceForJob(rootDir, jobId, dist) {
+  const buildDir = jobId ? path.join(rootDir, "builds", jobId) : null;
   if (buildDir && fs.existsSync(buildDir)) {
     const fromUpload = findIconSource(buildDir);
     if (fromUpload) return fromUpload;
   }
-  return findIconSource(distDir);
+  return findIconSource(dist);
 }
 
-export function generateAppIcons(options = {}) {
+async function ensureSquareIconSource(iconSource) {
+  const meta = await sharp(iconSource).metadata();
+  const width = meta.width ?? 0;
+  const height = meta.height ?? 0;
+
+  if (!width || !height) {
+    throw new Error(`Unable to read icon dimensions: ${iconSource}`);
+  }
+
+  if (width === height) {
+    return iconSource;
+  }
+
+  const size = Math.min(width, height);
+  const left = Math.floor((width - size) / 2);
+  const top = Math.floor((height - size) / 2);
+  const squarePath = path.join(
+    os.tmpdir(),
+    `web2app-icon-${path.basename(iconSource, path.extname(iconSource))}.png`,
+  );
+
+  await sharp(iconSource)
+    .extract({ left, top, width: size, height: size })
+    .png()
+    .toFile(squarePath);
+
+  console.log(
+    `Normalized icon to square by center crop (${width}x${height} -> ${size}x${size})`,
+  );
+  return squarePath;
+}
+
+export async function generateAppIcons(options = {}) {
   const { jobId } = options;
   if (!fs.existsSync(distDir)) {
     console.log("No dist directory, keeping default icons");
@@ -59,8 +93,9 @@ export function generateAppIcons(options = {}) {
     return false;
   }
 
+  const squareSource = await ensureSquareIconSource(iconSource);
   console.log(`Generating app icons from: ${path.relative(root, iconSource)}`);
-  execSync(`npx tauri icon "${iconSource}"`, {
+  execSync(`npx tauri icon "${squareSource}"`, {
     cwd: templateDir,
     stdio: "inherit",
   });
@@ -74,5 +109,5 @@ const isCli =
   path.resolve(process.argv[1]) === fileURLToPath(import.meta.url);
 
 if (isCli) {
-  generateAppIcons({ jobId: process.env.JOB_ID });
+  await generateAppIcons({ jobId: process.env.JOB_ID });
 }

.github/scripts/prepare-template.mjs

@@ -99,6 +99,6 @@ if (fs.existsSync(androidConfPath)) {
   patchTauriConfig(androidConfPath);
 }
 
-generateAppIcons({ jobId });
+await generateAppIcons({ jobId });
 
 console.log("Template prepared successfully");

package.json

@@ -18,6 +18,7 @@
   "devDependencies": {
     "adm-zip": "^0.5.17",
     "concurrently": "^9.1.2",
+    "sharp": "^0.34.2",
     "typescript": "~5.6.2",
     "wrangler": "^3.99.0"
   }