fixing binary to .go file

to_pdf/to_pdf.go

@@ -0,0 +1,105 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+func main() {
+	var input io.Reader
+	var outputFile string
+	if len(os.Args) > 1 {
+		// File input mode
+		file, err := os.Open(os.Args[1])
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Error opening file: %v\n", err)
+			os.Exit(1)
+		}
+		defer file.Close()
+		input = file
+		outputFile = strings.TrimSuffix(os.Args[1], filepath.Ext(os.Args[1])) + ".pdf"
+	} else {
+		// Stdin mode
+		input = os.Stdin
+		outputFile = "output.pdf"
+	}
+
+	// Check if pdflatex is installed
+	if _, err := exec.LookPath("pdflatex"); err != nil {
+		fmt.Fprintln(os.Stderr, "Error: pdflatex is not installed or not in your PATH.")
+		fmt.Fprintln(os.Stderr, "Please install a LaTeX distribution (e.g., TeX Live or MiKTeX) and ensure pdflatex is in your PATH.")
+		os.Exit(1)
+	}
+
+	// Create a temporary directory
+	tmpDir, err := os.MkdirTemp("", "latex_")
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error creating temporary directory: %v\n", err)
+		os.Exit(1)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// Create a temporary .tex file
+	tmpFile, err := os.Create(filepath.Join(tmpDir, "input.tex"))
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error creating temporary file: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Copy input to the temporary file
+	_, err = io.Copy(tmpFile, input)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error writing to temporary file: %v\n", err)
+		os.Exit(1)
+	}
+	tmpFile.Close()
+
+	// Run pdflatex with nonstopmode
+	cmd := exec.Command("pdflatex", "-interaction=nonstopmode", "-output-directory", tmpDir, tmpFile.Name())
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error running pdflatex: %v\n", err)
+		fmt.Fprintf(os.Stderr, "pdflatex output:\n%s\n", output)
+		os.Exit(1)
+	}
+
+	// Check if PDF was actually created
+	pdfPath := filepath.Join(tmpDir, "input.pdf")
+	if _, err := os.Stat(pdfPath); os.IsNotExist(err) {
+		fmt.Fprintln(os.Stderr, "Error: PDF file was not created. There might be an issue with your LaTeX source.")
+		fmt.Fprintf(os.Stderr, "pdflatex output:\n%s\n", output)
+		os.Exit(1)
+	}
+
+	// Move the output PDF to the current directory
+	err = os.Rename(pdfPath, outputFile)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error moving output file: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Clean up temporary files
+	cleanupTempFiles(tmpDir)
+
+	fmt.Printf("PDF created: %s\n", outputFile)
+}
+
+func cleanupTempFiles(dir string) {
+	extensions := []string{".aux", ".log", ".out", ".toc", ".lof", ".lot", ".bbl", ".blg"}
+	for _, ext := range extensions {
+		files, err := filepath.Glob(filepath.Join(dir, "*"+ext))
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Error finding %s files: %v\n", ext, err)
+			continue
+		}
+		for _, file := range files {
+			if err := os.Remove(file); err != nil {
+				fmt.Fprintf(os.Stderr, "Error removing file %s: %v\n", file, err)
+			}
+		}
+	}
+}