Add CLI installers for Tea, Borg, and Git Credential Manager, and enhance setup script with improved authentication

README.md

@@ -5,23 +5,137 @@ This script helps you create a git repository from existing codebase and configu
 ## Features
 
 - **Multiple Authentication Methods**:
-  - SSH (passwordless after key setup)
-  - HTTPS (with token/password)
-  - Tea CLI (Gitea's official command-line tool)
+  - SSH (passwordless with key generation)
+  - HTTPS (with Git Credential Manager)
+  - Tea CLI (full Gitea API integration)
+
+- **Advanced Installation Management**:
+  - **Tea CLI**: User-specific installations with version symlinks
+  - **Git Credential Manager**: Automatic detection and setup
+  - **Borg CLI**: Backup tool with smart version management
+  - **Smart Updates**: Only downloads when newer versions available
 
 - **Automatic Setup**:
   - Git repository initialization
-  - SSH key generation (if needed)
+  - SSH key generation and display
   - Tea CLI installation and configuration
   - Remote repository creation
   - Connection testing
 
 ## Usage
 
-1. Make the script executable:
-   ```bash
-   chmod +x setup-git-repo.sh
-   ```
+```bash
+# Interactive setup
+./setup-git-repo.sh
+
+# With configuration file
+echo '{"gitea": {"server_url": "https://your-gitea.com"}}' > config.json
+./setup-git-repo.sh
+```
+
+## Available Installers
+
+### Tea CLI Installer
+```bash
+# Install latest Tea CLI
+./install-tea-cli.sh
+
+# Install specific version
+./install-tea-cli.sh -v v0.11.1
+
+# Force reinstall
+./install-tea-cli.sh --force
+```
+
+### Borg CLI Installer
+```bash
+# Install latest Borg CLI
+./install-borg-cli.sh
+
+# Install specific version
+./install-borg-cli.sh -v 1.4.2
+
+# Force reinstall
+./install-borg-cli.sh --force
+```
+
+### Git Credential Manager Installer
+```bash
+# Install latest GCM
+./install-git-credential-manager.sh
+
+# Install specific version
+./install-git-credential-manager.sh -v v2.6.1
+
+# Force reinstall
+./install-git-credential-manager.sh --force
+
+# Check configuration without installing
+./install-git-credential-manager.sh --checks
+```
+
+## Installation Strategies
+
+All installers implement smart installation strategies:
+
+### User-Specific Installations (Preferred)
+- **Location**: `~/bin/` directory
+- **Requirements**: `~/bin` exists and is in PATH
+- **Benefits**: No sudo required, user isolation, multiple versions
+- **Structure**:
+  ```
+  ~/bin/
+  ├── tea -> tea-v0.11.1    # Active version
+  ├── tea-v0.11.0           # Previous version
+  └── tea-v0.11.1           # Current version
+  ```
+
+### System-Wide Installations (Fallback)
+- **Location**: `/usr/local/bin/`
+- **Requirements**: sudo access
+- **Benefits**: Available to all users
+- **Structure**:
+  ```
+  /usr/local/bin/
+  ├── tea -> tea-v0.11.1
+  ├── tea-v0.11.0
+  └── tea-v0.11.1
+  ```
+
+### Version Management
+- **Symlinks**: Automatic version switching
+- **Multiple Versions**: Keep old versions for rollback
+- **Smart Updates**: Only download when newer version available
+
+## Configuration
+
+The script supports JSON configuration for automation:
+
+```json
+{
+  "gitea": {
+    "server_url": "https://your-gitea.com",
+    "default_login_name": "$USER",
+    "login_method": "token",
+    "has_access_token": true,
+    "default_auth_method": "3"
+  },
+  "git": {
+    "default_branch": "main",
+    "auto_init": false
+  },
+  "ssh": {
+    "key_type": "ed25519",
+    "key_path": "~/.ssh/id_ed25519"
+  },
+  "repository": {
+    "default_private": false,
+    "auto_add_files": false,
+    "auto_commit": false,
+    "auto_push": false
+  }
+}
+```
 
 2. Run the script:
    ```bash