update eaf package

lisp/emacs-application-framework/app/markdown-previewer/render.js

@@ -0,0 +1,94 @@
+const path = require("path");
+const fs = require("fs");
+const os = require("os");
+const http = require("http");
+const url = require("url");
+
+const mume = require("@shd101wyy/mume");
+
+function readFile(file, options) {
+    return new Promise((resolve, reject) => {
+        fs.readFile(file, options, (error, text) => {
+            if (error) {
+                return reject(error.toString());
+            }
+            else {
+                return resolve(text.toString());
+            }
+        });
+    });
+}
+
+function writeFile(file, text, options) {
+    return new Promise((resolve, reject) => {
+        fs.writeFile(file, text, options, (error) => {
+            if (error) {
+                return reject(error.toString());
+            }
+            else {
+                return resolve();
+            }
+        });
+    });
+}
+
+async function render(inputFile, outputFile, darkMode) {
+    const configPath = path.resolve(os.homedir(), ".mume");
+    await mume.init(configPath);
+
+    const engine = new mume.MarkdownEngine({
+        filePath: inputFile,
+        config: {
+            configPath: configPath,
+            previewTheme: darkMode ? "atom-dark.css" : "atom-light.css",
+            mermaidTheme: darkMode ? "mermaid.dark.css" : "mermaid.css",
+            codeBlockTheme: darkMode ? "atom-dark.css" : "atom-light.css",
+            printBackground: true,
+            enableScriptExecution: true,
+        },
+    });
+
+    const inputString = await readFile(inputFile, {
+        encoding: "utf-8",
+    });
+    let html;
+    let yamlConfig;
+    ({ html, yamlConfig } = await engine.parseMD(inputString, {
+        useRelativeFilePath: false,
+        hideFrontMatter: true,
+        isForPreview: false,
+        runAllCodeChunks: true,
+    }));
+    html = await engine.generateHTMLTemplateForExport(html, yamlConfig, {
+        isForPrint: false,
+        isForPrince: false,
+        offline: true,
+        embedLocalImages: false,
+    });
+
+    await writeFile(outputFile, html);
+}
+
+async function server_handler(req, resp) {
+    const q = url.parse(req.url, true).query;
+    const inputFile = q.input_file;
+    const outputFile = q.output_file;
+    const darkMode = q.dark_mode == "true";
+
+    resp.writeHead(200, {'Content-Type': 'text/plain'});
+    try {
+	await render(inputFile, outputFile, darkMode);
+	resp.end('ok');
+    } catch (err) {
+	resp.end(err.message);
+    }
+}
+
+async function main() {
+    const argv = process.argv;
+    const port = Number(argv[2]);
+    http.createServer(server_handler).listen(port);
+}
+
+main()
+