automated-deployment-aws/src/zipper.js

Library that automates the deployment of the current project into aws machine

var archiver = require('archiver');
var fs = require('fs');
var path = require('path');


function createZipFile(dirPath){
  return new Promise((resolve,reject)=>{
   
    const directoryPath = path.normalize(dirPath)
    const zipFielPAth = dirPath + ".zip"

       // this code is used to find list of file which we want to exclude in zip file
       var aswIngnoreFilePath = directoryPath + "/.awsignore"
       //var aswIngnoreFilePath = "./.awsignore" // this line of code for local testing
       var awsIgnoreFileList = []
       var normalizedPath = path.normalize(aswIngnoreFilePath)
       try {

         const data = fs.readFileSync(aswIngnoreFilePath, 'utf8') 
         awsIgnoreFileList = data.split("\n").filter(i => i.trim() != "").map(ignoredFilePath => {
           ignoredFilePath = ignoredFilePath.trim();
           let directoryOfIgnoredPath = directoryPath+"/"+ignoredFilePath;
           if(fs.existsSync(directoryOfIgnoredPath)) {
            var statsOfEachFile = fs.statSync(directoryOfIgnoredPath);
            if(statsOfEachFile.isDirectory()){
              return ignoredFilePath+"/**";
            }
            return ignoredFilePath;
          } else {
            return "";
          }
         })
         console.log(".awsignore files path array = ",awsIgnoreFileList)

       } catch (err) {
         console.error(".awsignore file does not exist..")
       }
  
    // create a file to stream archive data to.
    var output = fs.createWriteStream(zipFielPAth);
    var archive = archiver('zip', {
      zlib: { level: 9 } // Sets the compression level.
    });
   
    // listen for all archive data to be written
   // 'close' event is fired only when a file descriptor is involved
    output.on('close', function() {
      //console.log(archive.pointer() + ' total bytes');
      //console.log('archiver has been finalized and the output file descriptor has closed.');
      resolve()
   });
   
    // This event is fired when the data source is drained no matter what was the data source.
    // It is not part of this library but rather from the NodeJS Stream API.
    // @see: https://nodejs.org/api/stream.html#stream_event_end
    output.on('end', function() {
     console.log('Data has been drained');
    });
   
    // good practice to catch warnings (ie stat failures and other non-blocking errors)
    archive.on('warning', function(err) {
      if (err.code === 'ENOENT') {
          console.log('Warning:',err);
         resolve()
        // log warning
      } else {
        // throw error
        reject(err)
      }
    });
   
    // good practice to catch this error explicitly
    archive.on('error', function(err) {
      reject(err)
     });

    archive.pipe(output);
    //archive.directory(directoryPath, false);
    archive.glob('**/*', {
      cwd: directoryPath,
	  ignore: awsIgnoreFileList,
	  dot : true
  })
    archive.finalize()
  })

}
 

module.exports = {
  createZipFile : createZipFile
}