SVG to PDF using librsvg

svgtopdf

var Rsvg = require('librsvg').Rsvg;
var fs = require('fs');
var path = require('path');
 
var currentfileNames = []; 

function readFiles(dirname, onError) {
  fs.readdir(dirname, function(err, filenames) {
    if (err) {
      onError(err);
      return;
    }
    filenames.forEach(function(filename) {
      // Stream SVG file into render instance.
      console.log(filename);
      if (filename != '.DS_Store') {
        var svg = new Rsvg();
        currentfileNames.push(__dirname + '/' + dirname + '/' + filename);
        fs.createReadStream(__dirname + '/' + dirname + '/' + filename).pipe(svg);

        // When finishing reading SVG, render and save as PDF image.
        svg.on('finish', function() {
          // console.log('SVG width: ' + svg.width);
          // console.log('SVG height: ' + svg.height);
          newPath = path.basename(currentfileNames.shift(), '.svg');
          console.log(newPath);
          fs.writeFile(__dirname + '/' + dirname + '/' + newPath + '.pdf', svg.render({
            format: 'pdf',
            width: svg.width,
            height: svg.height
          }).data, (error) => {  if (error) {
            console.log("error in write file" + error)
          }});
        });
      }
    });
  });
}

readFiles('assets');

svgtopdf sync calls

var Rsvg = require('librsvg').Rsvg;
var fs = require('fs');
var path = require('path');
 
var fileNames = [];

var assetDirName = "assets"

  function readFiles(onError) {
  fs.readdir(assetDirName, function(err, filenames) {
    if (err) {
      onError(err);
      return;
    }
    fileNames = filenames;    
    createPDF();

  });
}

function createPDF() {

if(fileNames.length == 0) {
  console.log("Return" , fileNames.length);
  return;
}

  filename = fileNames[0];
  console.log(filename)
  if (filename != '.DS_Store') {
    var svg = new Rsvg();
      currentfileName = __dirname + '/' + assetDirName + '/' + filename;
      fs.createReadStream(__dirname + '/' + assetDirName + '/' + filename).pipe(svg);

    // When finishing reading SVG, render and save as PDF file.
    svg.on('finish', function() {
      // console.log('SVG width: ' + svg.width);
      // console.log('SVG height: ' + svg.height);
      newPath = path.basename(currentfileName, '.svg');
      console.log('Finish: ',newPath);
      fs.writeFile(__dirname + '/' + assetDirName + '/' + newPath + '.pdf', svg.render({
        format: 'pdf',
        width: svg.width,
        height: svg.height
      }).data, (error) => { 
        fileNames.shift();
        createPDF();
         if (error) {
        console.log("error in write file" + error)
      }});
    });
  } else {
    fileNames.shift();
    createPDF();
  }
}

readFiles();