add pdflatex

Dockerfile

@@ -26,11 +26,17 @@ RUN cd /temp/prod && bun install --frozen-lockfile --production
 
 # copy production dependencies and source code into final image
 FROM base AS release
+LABEL maintainer="Emrik Östling (C4illin)"
+LABEL description="ConvertX: self-hosted online file converter supporting 700+ file formats."
+LABEL repo="https://github.com/C4illin/ConvertX"
+
 # install additional dependencies
 RUN rm -rf /var/lib/apt/lists/partial && apt-get update -o Acquire::CompressionTypes::Order::=gz \
   && apt-get install -y \
   pandoc \
   texlive-latex-recommended \
+  texlive-fonts-recommended \
+  texlive-latex-extra \
   ffmpeg \
   graphicsmagick \
   ghostscript \

src/converters/main.ts

@@ -15,6 +15,11 @@ import {
   properties as propertiesGraphicsmagick,
 } from "./graphicsmagick";
 
+import {
+  convert as convertPdflatex,
+  properties as propertiesPdflatex,
+} from "./pdflatex";
+
 import { normalizeFiletype } from "../helpers/normalizeFiletype";
 
 // This should probably be reconstructed so that the functions are not imported instead the functions hook into this to make the converters more modular
@@ -49,6 +54,10 @@ const properties: {
     properties: propertiesImage,
     converter: convertImage,
   },
+  pdflatex: {
+    properties: propertiesPdflatex,
+    converter: convertPdflatex,
+  },
   pandoc: {
     properties: propertiesPandoc,
     converter: convertPandoc,

src/converters/pdflatex.ts

@@ -0,0 +1,42 @@
+import { exec } from "node:child_process";
+
+export const properties = {
+  from: {
+    text: ["tex", "latex"],
+  },
+  to: {
+    text: ["pdf"],
+  },
+};
+
+export function convert(
+  filePath: string,
+  fileType: string,
+  convertTo: string,
+  targetPath: string,
+  // biome-ignore lint/suspicious/noExplicitAny: <explanation>
+  options?: any,
+): Promise<string> {
+  return new Promise((resolve, reject) => {
+    // const fileName: string = (targetPath.split("/").pop() as string).replace(".pdf", "")
+    const outputPath = targetPath.split("/").slice(0, -1).join("/").replace("./", "")
+    exec(
+      `pdflatex -interaction=nonstopmode -output-directory="${outputPath}" "${filePath}"`,
+      (error, stdout, stderr) => {
+        if (error) {
+          reject(`error: ${error}`);
+        }
+
+        if (stdout) {
+          console.log(`stdout: ${stdout}`);
+        }
+
+        if (stderr) {
+          console.error(`stderr: ${stderr}`);
+        }
+
+        resolve("success");
+      },
+    );
+  });
+}