feat: added -V --version option

README.md

@@ -53,6 +53,7 @@ The three subcommands:
 The Solidity code can be pulled from verified source code on Blockchain explorers like Etherscan or from local Solidity files.
 
 Options:
+  -V, --version                                output the version number
   -sf, --subfolders <value>                    number of subfolders that will be recursively searched for Solidity files. (default: all)
   -f, --outputFormat <value>                   output file format. (choices: "svg", "png", "dot", "all", default: "svg")
   -o, --outputFileName <value>                 output file name

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sol2uml",
-  "version": "2.1.2",
+  "version": "2.1.3",
   "description": "Unified Modeling Language (UML) class diagram generator for Solidity contracts",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",

src/ts/parserEtherscan.ts

@@ -6,6 +6,8 @@ import { convertAST2UmlClasses } from './converterAST2Classes'
 import { UmlClass } from './umlClass'
 import { topologicalSortClasses } from './filterClasses'
 
+const debug = require('debug')('sol2uml')
+
 const networks = <const>[
     'mainnet',
     'ropsten',
@@ -165,6 +167,9 @@ export class EtherscanParser {
         const description = `get verified source code for address ${contractAddress} from Etherscan API.`
 
         try {
+            debug(
+                `About to get Solidity source code for ${contractAddress} from ${this.url}`
+            )
             const response: any = await axios.get(this.url, {
                 params: {
                     module: 'contract',

src/ts/sol2uml.ts

@@ -13,6 +13,7 @@ import { convertStorages2Dot } from './converterStorage2Dot'
 import { isAddress } from './utils/regEx'
 import { writeOutputFiles, writeSolidity } from './writerFiles'
 const program = new Command()
+program.version(require('../package.json').version)
 
 const debugControl = require('debug')
 const debug = require('debug')('sol2uml')