初始化提交

src/core/vite.ts

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+import { execSync } from "node:child_process";
+import crypto from "node:crypto";
+import fs from "node:fs";
+import path from "node:path";
+import type { Plugin } from "vite";
+
+const suffix = ".css.ts";
+
+/**
+ * 生成主题输入
+ * @param outDir 输出目录与 vite 配置中的 outDir 一致, 用于生成临时目录
+ * @param themeDir 颜色主题目录
+ * @param devTheme 开发模式下的主题, 仅打包该主题
+ * @param mode 模式, 开发模式为 dev `vite build --mode dev`
+ * @returns vite.rollupOptions.input 的配置
+ */
+export function themeInput(outDir: string, themeDir: string, mode: string): { [key: string]: string } {
+  const hash = crypto.randomBytes(6).toString("hex");
+  const tmpDir = `${outDir}/tmp-${hash}`; // 输出目录下的临时目录
+  fs.mkdirSync(tmpDir, { recursive: true });
+
+  const input: { [key: string]: string } = {};
+  const themeEntries = fs.readdirSync(themeDir, { withFileTypes: true });
+  const devTheme = process.env.DEV_THEME || "dark"; // 开发模式仅打包单个颜色主题
+
+  for (const entry of themeEntries) {
+    // 目录下所有的 css.ts 文件都作为主题入口
+    if (entry.isFile() && entry.name.endsWith(suffix)) {
+      const fileName = entry.name.replace(suffix, "");
+      // 开发模式只打包 devTheme 主题
+      if (mode === "dev" && fileName !== devTheme) continue;
+      // 创建颜色主题的 css.ts 文件, vanilla-extract 需要这个文件后缀名并生成 css
+      const tmpCssTs = path.join(tmpDir, `${fileName}${suffix}`);
+      const createImport = `import { createTheme } from "src/core";`;
+      const themeImport = `import theme from "themes/${fileName}";`;
+      const createFn = `createTheme(theme);`;
+      fs.writeFileSync(tmpCssTs, `${createImport}\n${themeImport}\n${createFn}`);
+      // 生成主题入口的 .ts 文件, 合并样式和颜色主题
+      const tmpInputTs = path.join(tmpDir, `${fileName}.ts`);
+      const stylesImport = `import "styles";`;
+      const cssImport = `import "./${fileName}${suffix}";`;
+      fs.writeFileSync(tmpInputTs, `${stylesImport}\n${cssImport}`);
+
+      input[fileName] = tmpInputTs;
+    }
+  }
+  if (mode === "dev") {
+    console.log("[themeInput] devTheme:", devTheme);
+  }
+  return input;
+}
+
+function giteaThemeMetaInfo(nameGroup: string[]): string {
+  const displayName = nameGroup.map(word => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase()).join(" ");
+  return `gitea-theme-meta-info{--theme-display-name:"GitHub ${displayName}";}`; // 不要省略分号, 也不要追加任何变量, 否则 Gitea 不识别
+}
+
+const prefix = "theme-github-";
+
+/**
+ * 生成主题文件
+ * @important vite.rollupOptions.output 配置 `assetFileNames: "[name].[ext]"`
+ */
+export function themePlugin(): Plugin {
+  return {
+    name: "themePlugin",
+    generateBundle(this, _, bundle) {
+      let styles = "";
+      for (const [key, value] of Object.entries(bundle)) {
+        if (value.type === "chunk") {
+          delete bundle[key]; // 删除 chunk
+        } else {
+          // 样式文件是通过入口导入的, 没有原始文件名
+          if (value.originalFileNames.length === 0) {
+            // 收集所有的样式文件(逻辑上只有一个)
+            // vite 会在尾部添加注释, 后续会合并到颜色主题, 此处需要删除注释
+            styles += value.source.toString().replace("/*$vite$:1*/", "");
+            delete bundle[key];
+          }
+        }
+      }
+      // 生成所有的主题文件
+      for (const [key, value] of Object.entries(bundle)) {
+        // 仅为了类型检查, 逻辑上输出中全是 asset 类型
+        if (value.type === "asset") {
+          const name = `${prefix}${key}`;
+          const fileName = `${prefix}${value.fileName}`;
+          const originalFileName = value.originalFileNames.pop();
+          const type = value.type;
+          // 合并样式文件和主题信息
+          const meta = giteaThemeMetaInfo(key.split(".")[0].split("-"));
+          const source = `${meta}${value.source.toString()}${styles}`;
+          // 添加主题到输出
+          this.emitFile({ name, fileName, source, type, originalFileName });
+          // 自动颜色主题
+          const isDark = key.endsWith("dark.css");
+          const darkName = key.replace("light", "dark");
+          const lightName = darkName.replace("dark", "light");
+          const findTheme = isDark ? lightName : darkName;
+          if (findTheme in bundle) {
+            const autoName = `${prefix}${darkName.replace("dark", "auto")}`;
+            const lightContent = `@import "./${prefix}${lightName}" (prefers-color-scheme: light);`;
+            const darkContent = `@import "./${prefix}${darkName}" (prefers-color-scheme: dark);`;
+            const nameGroup = key.split(".")[0].split("-").slice(0, -1);
+            nameGroup.push("auto");
+            const metaInfo = giteaThemeMetaInfo(nameGroup);
+            this.emitFile({
+              name: autoName,
+              fileName: autoName,
+              type: "asset",
+              source: `${lightContent}\n${darkContent}\n${metaInfo}`,
+            });
+          }
+          // 删除原始的样式文件, 自动颜色主题因为删除, 永远不会生成两次
+          delete bundle[key];
+        }
+      }
+    },
+    writeBundle() {
+      // 上传到服务器
+      const server = process.env.SSH_SERVER;
+      const user = process.env.SSH_USER || "root";
+      const theme_path = process.env.GITEA_THEME_PATH;
+      if (server && theme_path) {
+        const cmd = `scp dist/${prefix}*.css ${user}@${server}:${theme_path}`;
+        console.log("[themePlugin] exec:", cmd);
+        try {
+          execSync(cmd, { stdio: "inherit" });
+          // eslint-disable-next-line @typescript-eslint/no-unused-vars
+        } catch (_) {
+          // continue regardless of error
+        }
+      } else {
+        console.log("[themePlugin] no SSH_SERVER or GITEA_THEME_PATH, skip upload");
+      }
+      console.log("[themePlugin] exec end.");
+    },
+  };
+}