feat(cli): process only missing dependencies on target dir

packages/cli/src/commands/add.ts

@@ -1,6 +1,7 @@
 import { existsSync, promises as fs } from "node:fs";
 import path from "node:path";
 import process from "node:process";
+import { EOL } from "node:os";
 import color from "chalk";
 import { Command } from "commander";
 import { execa } from "execa";
@@ -19,6 +20,7 @@ import {
 import { transformImports } from "../utils/transformers.js";
 import * as p from "../utils/prompts.js";
 import { intro, prettifyList } from "../utils/prompt-helpers.js";
+import { handleDependencies } from "../utils/dependencies.js";
 
 const highlight = (...args: unknown[]) => color.bold.cyan(...args);
 
@@ -244,15 +246,19 @@ async function runAdd(cwd: string, config: Config, options: AddOptions) {
 	}
 
 	// Install dependencies.
+	const { packageManager, dependencies: missingDeps } = await handleDependencies(
+		cwd,
+		dependencies
+	);
+
 	tasks.push({
-		title: "Installing package dependencies",
-		enabled: dependencies.size > 0,
+		title: `${highlight(packageManager)} Installing package dependencies`,
+		enabled: missingDeps.length > 0,
 		async task() {
-			const packageManager = await getPackageManager(cwd);
-			await execa(packageManager, ["add", ...dependencies], {
+			await execa(packageManager, ["add", ...missingDeps], {
 				cwd,
 			});
-			return "Dependencies installed";
+			return `Dependencies installed:${EOL}\t${color.gray(prettifyList(missingDeps))}`;
 		},
 	});
 

packages/cli/src/commands/init.ts

@@ -1,21 +1,22 @@
 import { existsSync, promises as fs } from "node:fs";
+import { EOL } from "node:os";
 import path from "node:path";
 import process from "node:process";
+import { execa } from "execa";
+import { Command, Option } from "commander";
 import color from "chalk";
 import * as v from "valibot";
-import { Command, Option } from "commander";
-import { execa } from "execa";
-import * as cliConfig from "../utils/get-config.js";
-import type { Config } from "../utils/get-config.js";
-import { getPackageManager } from "../utils/get-package-manager.js";
+import { type DetectLanguageResult, detectConfigs, detectLanguage } from "../utils/auto-detect.js";
+import { handleDependencies } from "../utils/dependencies.js";
 import { error, handleError } from "../utils/errors.js";
-import { getBaseColors, getRegistryBaseColor, getStyles } from "../utils/registry";
-import * as templates from "../utils/templates.js";
-import * as p from "../utils/prompts.js";
+import type { Config } from "../utils/get-config.js";
+import * as cliConfig from "../utils/get-config.js";
 import { intro, prettifyList } from "../utils/prompt-helpers.js";
+import * as p from "../utils/prompts.js";
+import { getBaseColors, getRegistryBaseColor, getStyles } from "../utils/registry";
 import { resolveImport } from "../utils/resolve-imports.js";
 import { syncSvelteKit } from "../utils/sveltekit.js";
-import { type DetectLanguageResult, detectConfigs, detectLanguage } from "../utils/auto-detect.js";
+import * as templates from "../utils/templates.js";
 
 const PROJECT_DEPENDENCIES = ["tailwind-variants", "clsx", "tailwind-merge"] as const;
 const highlight = (...args: unknown[]) => color.bold.cyan(...args);
@@ -360,15 +361,19 @@ export async function runInit(cwd: string, config: Config, options: InitOptions)
 
 	// Install dependencies.
 	if (options.deps) {
+		const { packageManager, dependencies: missingDeps } = await handleDependencies(
+			cwd,
+			new Set(PROJECT_DEPENDENCIES)
+		);
+
 		tasks.push({
-			title: "Installing dependencies",
+			title: `${highlight(packageManager)} Installing package dependencies`,
+			enabled: missingDeps.length > 0,
 			async task() {
-				const packageManager = await getPackageManager(cwd);
-
-				await execa(packageManager, ["add", ...PROJECT_DEPENDENCIES], {
+				await execa(packageManager, ["add", ...missingDeps], {
 					cwd,
 				});
-				return "Dependencies installed";
+				return `Dependencies installed:${EOL}\t${color.gray(prettifyList(missingDeps))}`;
 			},
 		});
 	}

packages/cli/src/commands/update.ts

@@ -1,19 +1,20 @@
 import { existsSync, promises as fs } from "node:fs";
+import { EOL } from "node:os";
 import path from "node:path";
 import process from "node:process";
-import color from "chalk";
-import { Command } from "commander";
 import { execa } from "execa";
+import { Command } from "commander";
+import color from "chalk";
 import * as v from "valibot";
-import { type Config, getConfig } from "../utils/get-config.js";
-import { getPackageManager } from "../utils/get-package-manager.js";
+import { handleDependencies } from "../utils/dependencies.js";
 import { error, handleError } from "../utils/errors.js";
+import { type Config, getConfig } from "../utils/get-config.js";
+import { getEnvProxy } from "../utils/get-env-proxy.js";
+import { intro, prettifyList } from "../utils/prompt-helpers.js";
+import * as p from "../utils/prompts.js";
 import { fetchTree, getItemTargetPath, getRegistryIndex, resolveTree } from "../utils/registry";
 import { UTILS, UTILS_JS } from "../utils/templates.js";
 import { transformImports } from "../utils/transformers.js";
-import * as p from "../utils/prompts.js";
-import { intro, prettifyList } from "../utils/prompt-helpers.js";
-import { getEnvProxy } from "../utils/get-env-proxy.js";
 
 const highlight = (msg: string) => color.bold.cyan(msg);
 
@@ -225,15 +226,19 @@ async function runUpdate(cwd: string, config: Config, options: UpdateOptions) {
 	}
 
 	// Install dependencies.
+	const { packageManager, dependencies: missingDeps } = await handleDependencies(
+		cwd,
+		dependencies
+	);
+
 	tasks.push({
-		title: "Installing package dependencies",
-		enabled: dependencies.size > 0,
+		title: `${highlight(packageManager)} Installing package dependencies`,
+		enabled: missingDeps.length > 0,
 		async task() {
-			const packageManager = await getPackageManager(cwd);
-			await execa(packageManager, ["add", ...dependencies], {
+			await execa(packageManager, ["add", ...missingDeps], {
 				cwd,
 			});
-			return "Dependencies installed";
+			return `Dependencies installed:${EOL}\t${color.gray(prettifyList(missingDeps))}`;
 		},
 	});
 

packages/cli/src/utils/dependencies.ts

@@ -0,0 +1,29 @@
+import fs from "node:fs";
+import { findUp } from "find-up";
+import type { PackageJson } from "type-fest";
+import { getPackageManager } from "./get-package-manager";
+
+export async function handleDependencies(targetDir: string, dependencies: Set<string>) {
+	let missingDependencies: undefined | Set<string>;
+	const packageManager = await getPackageManager(targetDir);
+	const packageJsonPath = await findUp("package.json", { cwd: targetDir });
+
+	// read `dependencies` from package.json
+	if (packageJsonPath && fs.existsSync(packageJsonPath)) {
+		try {
+			const pkg = JSON.parse(fs.readFileSync(packageJsonPath, "utf8")) as PackageJson;
+			missingDependencies = new Set<string>();
+
+			dependencies.forEach((dep) => {
+				if (!pkg.dependencies?.[dep] && !pkg.devDependencies?.[dep]) {
+					missingDependencies?.add(dep);
+				}
+			});
+		} catch {}
+	}
+
+	return {
+		packageManager,
+		dependencies: Array.from(missingDependencies || dependencies),
+	};
+}