Add GoReleaser configuration and version command

README.md

@@ -13,6 +13,12 @@ A Go-based command-line tool to manage SSH tunnels. This tool allows you to:
 go install git.mvl.sh/vleeuwenmenno/sshtunnel@latest
 ```
 
+You can also install a specific version:
+
+```
+go install git.mvl.sh/vleeuwenmenno/sshtunnel@v1.0.0
+```
+
 Or clone this repository and build it yourself:
 
 ```
@@ -22,6 +28,8 @@ make
 sudo make install
 ```
 
+The build process will automatically include version information from git tags.
+
 ## Uninstallation
 
 For installation using `go install`, run:
@@ -38,6 +46,17 @@ sudo make uninstall
 
 ## Usage
 
+### Showing version information
+
+```
+sshtunnel version
+```
+
+This will display the current version of sshtunnel along with build information.
+
+Options:
+- `-c, --check-updates`: Check for updates against the latest release
+
 ### Listing active tunnels
 
 ```
@@ -111,6 +130,58 @@ This command will:
 3. Validate all recorded tunnels and their current state
 4. Show active SSH tunnel processes and their status
 
+### Version information
+
+```
+sshtunnel version --check-updates
+```
+
+This displays version information and checks for updates to the tool. 
+
+When a new version is available, you'll get instructions on how to update.
+
+### Shell completion
+
+Generate shell completion scripts:
+
+```
+# Bash
+sshtunnel completion bash > ~/.bash_completion.d/sshtunnel
+source ~/.bash_completion.d/sshtunnel
+
+# Zsh
+sshtunnel completion zsh > "${fpath[1]}/_sshtunnel"
+
+# Fish
+sshtunnel completion fish > ~/.config/fish/completions/sshtunnel.fish
+```
+
+For system-wide installation:
+```
+# Bash (Linux)
+sudo sshtunnel completion bash > /etc/bash_completion.d/sshtunnel
+
+# Bash (macOS with Homebrew)
+sshtunnel completion bash > $(brew --prefix)/etc/bash_completion.d/sshtunnel
+```
+
+## Development
+
+### Release Process
+
+The project includes a release script to help manage version tags:
+
+```
+./bin/scripts/release.sh
+```
+
+This script will:
+1. Find the latest version tag
+2. Suggest the next patch version (e.g., v1.0.0 → v1.0.1)
+3. Allow you to accept this suggestion or enter a custom version
+4. Create and push the new tag
+5. Update the "latest" tag to point to the new version
+
 ## How it works
 
 The tool creates SSH tunnels using the system's SSH client and manages them by tracking their process IDs in a hidden directory (`~/.sshtunnels/`). Each tunnel is assigned a unique ID for easy management. Traffic statistics are collected and stored to help you monitor data transfer through your tunnels.