#98 : csv file viewer in console changes

Author: [email protected]

src/commands/showfile.ts

@@ -0,0 +1,105 @@
+// code here to write the tool for csv tool show
+import {Command, flags} from '@oclif/command'
+
+import Logger from '../utilities/logger'
+import Utilities from '../utilities/utilities'
+
+export default class ShowFile extends Command {
+  static description = 'File Minifier'
+
+  static flags = {
+    help: flags.help({char: 'h'}),
+    file: flags.string({char: 'f' , description: 'formatted file to be shown'})
+  }
+
+  static args = [{name: 'file'}]
+
+  // required FILE
+  async run() {
+    const {args, flags} = this.parse(ShowFile)
+
+    args.file = this.getFilePath(flags, args)
+
+    this.checkParameters(flags, args)
+    this.showFile(args)
+  }
+
+  private getFilePath(flags: any, args: any) {
+    if (args.file)
+      return args.file
+    if (flags.file)
+      return flags.file
+    Logger.error(this, 'File path not passed')
+  }
+
+  // tslint:disable-next-line:no-unused
+  private checkParameters(flags: unknown, args: { [p: string]: any }) {
+    if (args.file === undefined || args.file === '')
+      Logger.error(this, 'File path is empty')
+    // others already checked
+  }
+
+
+  private showFile(args: any) {
+
+    let data = Utilities.getStringFromFile(this, args.file)
+    let rows = data.split('\n')
+
+    let widthArray = []
+
+    let recordsToShow = 10
+
+    for(let i = 0; i < rows[0].length; i++){
+        widthArray[i] = 0
+    }
+
+    for(let i = 0; i < recordsToShow; i++){
+        let row = rows[i].split(",");
+        let s = ''
+        for(let j = 0; j < row.length; j ++){
+            s = s + row[j]
+            if(widthArray[j] < row[j].length){
+                widthArray[j] = row[j].length
+            }
+        }
+    }
+
+    this.printRow(rows[0].split(","), widthArray, "+", true)
+    for(let i = 0; i < recordsToShow-1; i++){
+        let row = rows[i]
+        this.printRow(row.split(','), widthArray, '|', false)
+        this.printRow(row.split(','), widthArray, '+', true)
+    }
+
+  }
+
+  private printRow(row: any, widthArray: any, seperator: any, isLineSeparator: any){
+      let output = seperator
+      for(let i = 0; i < row.length; i ++){
+          let totalSize = widthArray[i]
+
+          let dataLength = 0;
+          let space = "-"
+          if(!isLineSeparator){
+              let data = row[i]
+            data = data.split(/\r/)[0]
+              output += data
+              dataLength = data.length
+              space = ' '
+            //   this.log(`The output log upto here is : ${output}`)
+          }
+          
+          for(let j = 0; j < totalSize - dataLength; j++){
+              output += space
+          }
+          
+          output += seperator
+          if(!isLineSeparator){
+            // this.log(`The output log upto here is : ${output}`)
+            // Logger.info(this, output)
+          }
+      }
+      this.log('' + output)
+      output = ''
+  }
+}