feat(post-encrypt): add help option to display usage instructions

packages/post-encrypt/README.md

@@ -2,25 +2,46 @@
 
 Post-build AES-256-GCM encryption tool for the [FixIt](https://github.com/hugo-fixit/FixIt) Hugo theme.
 
+It is designed for HTML generated by FixIt content encryption templates and should be run after your site has already been built.
+
 ## Usage
 
 After building your Hugo site, run the encryption tool from your site root:
 
 ```bash
-npx @hugo-fixit/post-encrypt --input public
+npx @hugo-fixit/post-encrypt
+```
+
+You can also install it globally and run the CLI directly:
+
+```bash
+npm install -g @hugo-fixit/post-encrypt
+post-encrypt
+```
+
+Typical build flow:
+
+```bash
+hugo build
+npx @hugo-fixit/post-encrypt
+npx @hugo-fixit/post-encrypt --verify
 ```
 
 ### Options
 
-| Option | Description | Default |
-| --- | --- | --- |
-| `--input <dir>` | Input directory containing HTML files | `public` |
-| `--dry-run | Show which files would be modified without writing | `false` |
-| `--verify | Verify all encryption templates are encrypted | `false` |
+| Option          | Description                                        | Default  |
+| --------------- | -------------------------------------------------- | -------- |
+| `--input <dir>` | Input directory containing HTML files              | `public` |
+| `--dry-run`     | Show which files would be modified without writing | `false`  |
+| `--verify`      | Verify all encryption templates are encrypted      | `false`  |
+| `-h, --help`    | Show CLI usage help                                |          |
 
 ### Examples
 
 ```bash
+# Show CLI help
+npx @hugo-fixit/post-encrypt --help
+
 # Encrypt content in the default public/ directory
 npx @hugo-fixit/post-encrypt
 

packages/post-encrypt/package.json

@@ -5,7 +5,7 @@
   "description": "Post-build AES-256-GCM encryption tool for the FixIt Hugo theme",
   "author": "Lruihao",
   "license": "MIT",
-  "homepage": "https://github.com/hugo-fixit/FixIt/tree/feat/post-encrypt/packages/post-encrypt#readme",
+  "homepage": "https://github.com/hugo-fixit/FixIt/tree/main/packages/post-encrypt#readme",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/hugo-fixit/FixIt.git",

packages/post-encrypt/src/index.ts

@@ -19,6 +19,7 @@ interface CliOptions {
   cwd: string
   dryRun: boolean
   verifyOnly: boolean
+  helpRequested: boolean
 }
 
 interface TemplateMatch {
@@ -37,10 +38,15 @@ function parseArgs(argv: string[]): CliOptions {
     cwd: process.env.INIT_CWD || process.cwd(),
     dryRun: false,
     verifyOnly: false,
+    helpRequested: false,
   }
 
   for (let i = 0; i < argv.length; i++) {
     const arg = argv[i]
+    if (arg === '--help' || arg === '-h') {
+      options.helpRequested = true
+      continue
+    }
     if (arg === '--input') {
       options.input = argv[i + 1] || options.input
       i++
@@ -63,6 +69,23 @@ function parseArgs(argv: string[]): CliOptions {
   return options
 }
 
+function printHelp(): void {
+  consola.log(`Usage:
+  post-encrypt [options]
+
+Options:
+  --input <dir>  Input directory containing HTML files (default: public)
+  --dry-run      Show which files would be modified without writing
+  --verify       Verify all encryption templates are encrypted
+  -h, --help     Show this help message
+
+Examples:
+  post-encrypt
+  post-encrypt --input dist
+  post-encrypt --verify
+  post-encrypt --dry-run`)
+}
+
 function collectHtmlFiles(targetDir: string): string[] {
   const files: string[] = []
 
@@ -240,6 +263,10 @@ function hasUnencryptedTemplate(matches: TemplateMatch[]): boolean {
 
 function main() {
   const options = parseArgs(process.argv.slice(2))
+  if (options.helpRequested) {
+    printHelp()
+    return
+  }
   const targetDir = path.isAbsolute(options.input)
     ? options.input
     : path.resolve(options.cwd, options.input)