feat: add cli command that automatically inits husky and creates pre-…

…commit hook

src/commands/husky-init.ts

@@ -0,0 +1,56 @@
+import { Command } from "@oclif/core";
+import { exec } from "child_process";
+import { readFile, writeFile } from "fs/promises";
+
+type Scripts = {
+  scripts: {
+    [key: string]: string;
+  };
+};
+
+export default class HuskyInit extends Command {
+  static description = "Init husky pre-commit check";
+  private readonly _packageJsonFile = "package.json";
+  private readonly _absolutePath = `${process.cwd()}`;
+
+  public async run(): Promise<void> {
+    this._installHusky();
+    this._enableGitHooks();
+    const packageJsonFile = await this._readFile();
+    this._addHuskyScript(packageJsonFile);
+    this._writeFile(JSON.stringify(packageJsonFile, null, 2));
+    this._createHook();
+  }
+
+  private _installHusky(): void {
+    const cmd = `npm install husky --save-dev`;
+    exec(cmd);
+  }
+
+  private _enableGitHooks(): void {
+    const cmd = `npx husky install`;
+    exec(cmd);
+  }
+
+  private _addHuskyScript(packageJsonFile: Scripts): void {
+    packageJsonFile.scripts["prepare"] = "husky install";
+  }
+
+  private _createHook(): void {
+    const cmd = `npx husky add .husky/pre-commit "npm run stylelint-config-selleo check-current"`;
+    exec(cmd);
+  }
+
+  private async _readFile(): Promise<Scripts> {
+    const file = await readFile(
+      `${this._absolutePath}/${this._packageJsonFile}`,
+      { encoding: "utf8" }
+    );
+
+    return JSON.parse(file);
+  }
+
+  private async _writeFile(file: string): Promise<void> {
+    await writeFile(`${this._absolutePath}/${this._packageJsonFile}`, file);
+  }
+}