build with redirected images

docs/.vitepress/config.mts

@@ -1,35 +1,71 @@
-import { defineConfig } from 'vitepress'
+import { defineConfig } from "vitepress";
+import { execSync } from "node:child_process";
 
 const host = process.env.TAURI_DEV_HOST;
 
+const {
+  IMG_ORIGIN = `https://git.polv.cc/polv/yt2press/raw/branch/${
+    execSync("git branch --show-current").toString().trimEnd()
+  }/docs/public`,
+} = process.env;
+
 // https://vitepress.dev/reference/site-config
 export default defineConfig({
   title: "yt2press",
   description: "video to vitepress",
   themeConfig: {
     // https://vitepress.dev/reference/default-theme-config
-    nav: [
-      { text: 'Home', link: '/' },
-    ],
+    nav: [{ text: "Home", link: "/" }],
 
     sidebar: [
       {
-        text: 'Preview',
+        text: "Preview",
         // items: [
         //   { text: 'Markdown Examples', link: '/markdown-examples' },
         //   { text: 'Runtime API Examples', link: '/api-examples' }
         // ]
-      }
+      },
     ],
 
     socialLinks: [
-      { icon: 'github', link: 'https://git.polv.cc/polv/yt2press' }
-    ]
+      { icon: "github", link: "https://git.polv.cc/polv/yt2press" },
+    ],
   },
   markdown: {
     image: {
       lazyLoading: true,
     },
+    config(md) {
+      // production-only gate
+      const isProd =
+        process.env.NODE_ENV === "production" ||
+        process.env.VITEPRESS_ENV === "production"; // extra safety
+
+      if (isProd) {
+        md.core.ruler.push("rewrite-image-urls", (state) => {
+          if (!state.tokens) return;
+
+          for (const token of state.tokens) {
+            if (token.type !== "inline") continue;
+
+            for (const child of token.children ?? []) {
+              // images: ![alt](src)
+              if (
+                child.type === "image" &&
+                typeof child.attrGet("src") === "string"
+              ) {
+                const src = child.attrGet("src");
+
+                // rewrite only /images/* (adjust if your paths differ)
+                if (src && src.startsWith("/images/")) {
+                  child.attrSet("src", `${IMG_ORIGIN}${src}`);
+                }
+              }
+            }
+          }
+        });
+      }
+    },
   },
   vite: {
     clearScreen: false,
@@ -42,28 +78,26 @@ export default defineConfig({
       host: host || false,
       watch: {
         // tell vite to ignore watching `src-tauri`
-        ignored: ['**/src-tauri/**'],
+        ignored: ["**/src-tauri/**"],
       },
       proxy: {
-        '/socket': {
-          target: 'ws://localhost:8080',
+        "/socket": {
+          target: "ws://localhost:8080",
           ws: true,
           rewriteWsOrigin: true,
-        }
+        },
       },
     },
     // Env variables starting with the item of `envPrefix` will be exposed in tauri's source code through `import.meta.env`.
-    envPrefix: ['VITE_', 'TAURI_ENV_*'],
+    envPrefix: ["VITE_", "TAURI_ENV_*"],
     build: {
       // Tauri uses Chromium on Windows and WebKit on macOS and Linux
       target:
-        process.env.TAURI_ENV_PLATFORM == 'windows'
-          ? 'chrome105'
-          : 'safari13',
+        process.env.TAURI_ENV_PLATFORM == "windows" ? "chrome105" : "safari13",
       // don't minify for debug builds
-      minify: !process.env.TAURI_ENV_DEBUG ? 'esbuild' : false,
+      minify: !process.env.TAURI_ENV_DEBUG ? "esbuild" : false,
       // produce sourcemaps for debug builds
       sourcemap: !!process.env.TAURI_ENV_DEBUG,
     },
-  }
-})
+  },
+});