feat(cli): add version

Author: JacobLinCool

package.json

@@ -1,6 +1,6 @@
 {
     "name": "testcase-gen",
-    "version": "0.1.1",
+    "version": "0.2.0",
     "description": "Testcase Generator",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",

src/cli.ts

@@ -2,9 +2,23 @@ import { existsSync, writeFileSync } from "fs";
 import { join } from "path";
 import { Generator, recipe, testcase, generateMode } from "./";
 
-// get recipe and output from command line
+if (
+    process.argv.findIndex((arg) => arg === "--version") !== -1 ||
+    process.argv.findIndex((arg) => arg === "-v") !== -1 ||
+    process.argv.findIndex((arg) => arg === "-V") !== -1
+) {
+    console.log("testcase-gen version: " + "\u001b[1;93m" + require("../package.json").version + "\u001b[0m");
+    console.log("Usage: testcase-gen --recipe [recipe] --output [output] --mode [mode]");
+    console.log("\t--recipe (-r): Recipe JS File Path.");
+    console.log("\t--output (-o): Output File Path.");
+    console.log('\t--mode (-m): Generate Mode. "simple" or "normal".');
+    console.log("\t--version (-V) or (-v): Show version.");
+    console.log("Homepage: " + "\u001b[94m" + require("../package.json").homepage + "\u001b[0m");
+    process.exit(0);
+}
+
 let recipePath = join(process.cwd(), "recipe.js"),
-    outputPath = join(process.cwd(), "testcases.txt"),
+    outputPath = "",
     mode: generateMode = "simple";
 if (process.argv.findIndex((arg) => arg === "--recipe") !== -1 || process.argv.findIndex((arg) => arg === "-r") !== -1) {
     recipePath =
@@ -46,9 +60,11 @@ const testcases = generator.gen(mode);
 const EndTime = Date.now();
 
 if (mode === "simple") {
+    if (!outputPath) outputPath = join(process.cwd(), "testcases.txt");
     writeFileSync(outputPath, testcases as string, "utf-8");
-    console.log("\033[92m" + `Testcases generated in ${EndTime - StartTime}ms at ${outputPath}.` + "\033[0m");
+    console.log("\u001b[92m" + `Testcases generated in ${EndTime - StartTime}ms at ${outputPath}.` + "\u001b[0m");
 } else {
+    if (!outputPath) outputPath = join(process.cwd(), "testcases.json");
     writeFileSync(outputPath, JSON.stringify(testcases as testcase[], null, 2), "utf-8");
-    console.log("\033[92m" + `${(testcases as testcase[]).length} testcases generated in ${EndTime - StartTime}ms at ${outputPath}.` + "\033[0m");
+    console.log("\u001b[92m" + `${(testcases as testcase[]).length} testcases generated in ${EndTime - StartTime}ms at ${outputPath}.` + "\u001b[0m");
 }