0d0c0025fb
- 安裝 xvfb 到 Docker image - 使用 xvfb-run -a 包裝 inkscape 命令 - 設定虛擬螢幕解析度 1024x768x24 - 修復 PNG 轉 SVG 等需要 GTK 的操作 Fixes: Gtk-ERROR Can't create GtkStyleContext without display
87 lines
2.1 KiB
TypeScript
87 lines
2.1 KiB
TypeScript
import { execFile as execFileOriginal } from "node:child_process";
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import { extname } from "node:path";
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import { ExecFileFn } from "./types";
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export const properties = {
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from: {
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images: ["svg", "pdf", "eps", "ps", "wmf", "emf", "png"],
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},
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to: {
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images: [
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"dxf",
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"emf",
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"eps",
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"fxg",
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"gpl",
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"hpgl",
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"html",
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"odg",
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"pdf",
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"png",
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"pov",
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"ps",
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"sif",
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"svg",
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"svgz",
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"tex",
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"wmf",
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],
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},
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};
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/**
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* Inkscape 轉換器
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*
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* ⚠️ Headless 環境注意事項：
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* 某些 Inkscape 操作（如 PNG 轉 SVG）需要 GTK 初始化，
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* 在無 DISPLAY 環境下需要使用 xvfb-run 包裝。
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*
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* 🔧 使用 xvfb-run 的 headless 語法：
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* xvfb-run -a inkscape input.png --export-type=svg --export-filename=output.svg
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*
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* 參考：https://inkscape.org/doc/inkscape-man.html
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*/
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export function convert(
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filePath: string,
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fileType: string,
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convertTo: string,
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targetPath: string,
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options?: unknown,
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execFile: ExecFileFn = execFileOriginal, // to make it mockable
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): Promise<string> {
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return new Promise((resolve, reject) => {
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// 從目標路徑取得輸出格式（移除開頭的點）
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const exportType = extname(targetPath).slice(1).toLowerCase();
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// 使用 xvfb-run 包裝 Inkscape 命令，確保在無 DISPLAY 環境下也能運作
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// -a: 自動選擇可用的 display number
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// --server-args="-screen 0 1024x768x24": 設定虛擬螢幕解析度
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const args = [
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"-a",
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"--server-args=-screen 0 1024x768x24",
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"inkscape",
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filePath,
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`--export-type=${exportType}`,
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`--export-filename=${targetPath}`,
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];
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// 使用 xvfb-run 而非直接呼叫 inkscape
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execFile("xvfb-run", args, (error: Error | null, stdout: string, stderr: string) => {
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if (error) {
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reject(`error: ${error}`);
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return;
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}
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if (stdout) {
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console.log(`stdout: ${stdout}`);
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}
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if (stderr) {
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// Inkscape 經常輸出警告到 stderr，但這不代表失敗
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console.log(`stderr: ${stderr}`);
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}
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resolve("Done");
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});
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});
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}
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