Add GoReleaser configuration and version command

.github/workflows/go-releaser.yml

@@ -0,0 +1,37 @@
+name: goreleaser
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: stable
+      
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v5
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          
+      - name: Update latest tag
+        run: |
+          git tag -f latest
+          git push -f origin latest

.goreleaser.yml

@@ -0,0 +1,106 @@
+# This is a GoReleaser configuration file
+# For more information about configuration options, visit:
+# https://goreleaser.com/customization/
+
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+    flags:
+      - -trimpath
+    ldflags:
+      - -s -w
+      - -X git.mvl.sh/vleeuwenmenno/sshtunnel/cmd.Version={{.Version}}
+      - -X git.mvl.sh/vleeuwenmenno/sshtunnel/cmd.BuildDate={{.Date}}
+    mod_timestamp: "{{ .CommitTimestamp }}"
+
+archives:
+  - format: tar.gz
+    name_template: >-
+      {{ .ProjectName }}_
+      {{- title .Os }}_
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else if eq .Arch "386" }}i386
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}
+    format_overrides:
+      - goos: windows
+        format: zip
+
+checksum:
+  name_template: "checksums.txt"
+
+snapshot:
+  name_template: "{{ incpatch .Version }}-next"
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+
+# Homebrew formula
+brews:
+  - repository:
+      owner: vleeuwenmenno
+      name: homebrew-tap
+      token: "{{ .Env.GITHUB_TOKEN }}"
+    directory: Formula
+    homepage: "https://git.mvl.sh/vleeuwenmenno/sshtunnel"
+    description: "SSH tunnel manager CLI tool"
+    license: "MIT"
+    commit_author:
+      name: goreleaserbot
+      email: goreleaser@carlosbecker.com
+    install: |
+      bin.install "sshtunnel"
+
+      # Generate shell completions
+      output = Utils.safe_popen_read("#{bin}/sshtunnel", "completion", "bash")
+      (bash_completion/"sshtunnel").write output
+
+      output = Utils.safe_popen_read("#{bin}/sshtunnel", "completion", "zsh")
+      (zsh_completion/"_sshtunnel").write output
+
+      output = Utils.safe_popen_read("#{bin}/sshtunnel", "completion", "fish")
+      (fish_completion/"sshtunnel.fish").write output
+    test: |
+      system "#{bin}/sshtunnel", "version"
+
+# .deb and .rpm packages
+nfpms:
+  - file_name_template: "{{ .ProjectName }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}"
+    id: packages
+    homepage: https://git.mvl.sh/vleeuwenmenno/sshtunnel
+    description: |-
+      SSH tunnel manager CLI tool
+    maintainer: Menno van Leeuwen
+    license: MIT
+    vendor: vleeuwenmenno
+    formats:
+      - deb
+      - rpm
+    dependencies:
+      - openssh-client
+    recommends:
+      - bash-completion
+    scripts:
+      postinstall: |
+        sshtunnel completion bash > /usr/share/bash-completion/completions/sshtunnel
+        sshtunnel completion zsh > /usr/share/zsh/site-functions/_sshtunnel
+        sshtunnel completion fish > /usr/share/fish/vendor_completions.d/sshtunnel.fish
+        chmod 644 /usr/share/bash-completion/completions/sshtunnel || true
+        chmod 644 /usr/share/zsh/site-functions/_sshtunnel || true
+        chmod 644 /usr/share/fish/vendor_completions.d/sshtunnel.fish || true

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.

bin/scripts/build-binary.sh

@@ -28,8 +28,12 @@ if [ -n "$(git status --porcelain)" ]; then
     POSTFIX=" (dirty)"
 fi
 
+# Format a clean version string for the build
+VERSION=$(echo "$BRANCH" | sed 's/^v//')
+BUILD_DATE=$(date -u '+%Y-%m-%d %H:%M:%S')
+
 printfe "%s\n" "cyan" "Building $BINARY_NAME binary for $BRANCH ($LATEST_COMMIT_HASH)$POSTFIX..."
-go build -o $BINARY_PATH
+go build -ldflags="-X 'git.mvl.sh/vleeuwenmenno/sshtunnel/cmd.Version=$BRANCH' -X 'git.mvl.sh/vleeuwenmenno/sshtunnel/cmd.BuildDate=$BUILD_DATE'" -o $BINARY_PATH
 
 if [ $? -ne 0 ]; then
     printf "\033[0;31m"
@@ -39,9 +43,9 @@ if [ $? -ne 0 ]; then
 fi
 
 # Put tag and hash in .sshtunnel_version file
-echo "$BRANCH ($LATEST_COMMIT_HASH)$POSTFIX" > $BINARY_PATH_VERSION
+echo "$BRANCH" > $BINARY_PATH_VERSION
 
-printfe "%s\n" "cyan" "Generating Bash completion script..."
+printfe "%s\n" "cyan" "Generating completion scripts..."
 $BINARY_PATH completion bash > $COMPLETION_SCRIPT
 
 printfe "%s\n" "green" "Bash completion script installed to $COMPLETION_SCRIPT."

cmd/version.go

@@ -0,0 +1,216 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"regexp"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	// Version is set during build
+	Version = "dev"
+
+	// BuildDate is set during build
+	BuildDate = ""
+
+	// For go install builds, this will be the go.mod version
+	versionFromMod = "$GOFLAGS: -ldflags=-X git.mvl.sh/vleeuwenmenno/sshtunnel/cmd.Version=${VERSION}"
+
+	checkForUpdates bool
+)
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Show sshtunnel version information",
+	Long:  `Display the current version of sshtunnel and check for updates.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		// Display current version
+		showVersion()
+
+		// Check for updates if requested
+		if checkForUpdates {
+			checkUpdate()
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+	versionCmd.Flags().BoolVarP(&checkForUpdates, "check-updates", "c", false, "Check for updates")
+
+	// If version is still "dev", try to read from other sources
+	if Version == "dev" {
+		// Check if version was injected via go install's version info
+		if strings.Contains(versionFromMod, "${VERSION}") {
+			// Not replaced, try to read from the installed version file
+			Version = readInstalledVersion()
+		} else {
+			// Extract version from the injected string
+			re := regexp.MustCompile(`Version=(.+)$`)
+			matches := re.FindStringSubmatch(versionFromMod)
+			if len(matches) > 1 {
+				Version = matches[1]
+			} else {
+				// Fall back to reading from installed file
+				Version = readInstalledVersion()
+			}
+		}
+	}
+}
+
+func showVersion() {
+	fmt.Printf("sshtunnel %s\n", Version)
+	if BuildDate != "" {
+		fmt.Printf("Build date: %s\n", BuildDate)
+	}
+	fmt.Printf("Go version: %s\n", runtime.Version())
+	fmt.Printf("OS/Arch: %s/%s\n", runtime.GOOS, runtime.GOARCH)
+}
+
+func readInstalledVersion() string {
+	// Check system-installed version file first
+	versionFile := "/usr/local/share/sshtunnel/sshtunnel.version"
+	if _, err := os.Stat(versionFile); err == nil {
+		content, err := os.ReadFile(versionFile)
+		if err == nil {
+			return strings.TrimSpace(string(content))
+		}
+	}
+
+	// Try user's home directory for go install version
+	homeDir, err := os.UserHomeDir()
+	if err == nil {
+		goPath := filepath.Join(homeDir, "go", "pkg", "mod", "git.mvl.sh", "vleeuwenmenno", "sshtunnel@*")
+		matches, err := filepath.Glob(goPath)
+		if err == nil && len(matches) > 0 {
+			// Sort matches to get the latest version
+			// Example: .../sshtunnel@v1.0.0 -> extract v1.0.0
+			latestMatch := matches[len(matches)-1]
+			parts := strings.Split(filepath.Base(latestMatch), "@")
+			if len(parts) > 1 {
+				return parts[1]
+			}
+		}
+	}
+
+	// Check if executable name has version info
+	execPath, err := os.Executable()
+	if err == nil {
+		execName := filepath.Base(execPath)
+		if strings.Contains(execName, "sshtunnel-v") {
+			parts := strings.Split(execName, "-v")
+			if len(parts) > 1 {
+				return "v" + parts[1]
+			}
+		}
+		
+		// Check if it's in GOBIN with a version suffix
+		re := regexp.MustCompile(`sshtunnel@(v[0-9]+\.[0-9]+\.[0-9]+)$`)
+		matches := re.FindStringSubmatch(execName)
+		if len(matches) > 1 {
+			return matches[1]
+		}
+	}
+
+	// Default version if we couldn't find any version information
+	return "dev"
+}
+
+func checkUpdate() {
+	fmt.Println("\nChecking for updates...")
+	client := http.Client{
+		Timeout: 5 * time.Second,
+	}
+
+	resp, err := client.Get("https://git.mvl.sh/api/v1/repos/vleeuwenmenno/sshtunnel/tags")
+	if err != nil {
+		fmt.Printf("Error checking for updates: %s\n", err)
+		return
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Printf("Error reading response: %s\n", err)
+		return
+	}
+
+	var tags []struct {
+		Name string `json:"name"`
+	}
+	if err := json.Unmarshal(body, &tags); err != nil {
+		fmt.Printf("Error parsing response: %s\n", err)
+		return
+	}
+
+	// Find the latest version tag
+	var latestTag string
+	for _, tag := range tags {
+		if strings.HasPrefix(tag.Name, "v") && (latestTag == "" || compareVersions(tag.Name, latestTag) > 0) {
+			latestTag = tag.Name
+		}
+	}
+
+	if latestTag == "" {
+		fmt.Println("No version tags found in the repository")
+		return
+	}
+
+	// Compare with current version
+	if compareVersions(latestTag, Version) > 0 {
+		fmt.Printf("A newer version is available: %s (you have %s)\n", latestTag, Version)
+		fmt.Println("To update, run: go install git.mvl.sh/vleeuwenmenno/sshtunnel@latest")
+	} else {
+		fmt.Println("You are running the latest version")
+	}
+}
+
+// compareVersions compares two semantic version strings (v1.2.3)
+// returns:  1 if v1 > v2
+//          -1 if v1 < v2
+//           0 if v1 == v2
+func compareVersions(v1, v2 string) int {
+	// Remove 'v' prefix if any
+	v1 = strings.TrimPrefix(v1, "v")
+	v2 = strings.TrimPrefix(v2, "v")
+
+	// Split into parts
+	parts1 := strings.Split(v1, ".")
+	parts2 := strings.Split(v2, ".")
+
+	// Compare each part
+	for i := 0; i < len(parts1) && i < len(parts2); i++ {
+		// Skip non-numeric parts (like pre-release suffixes)
+		num1 := 0
+		fmt.Sscanf(parts1[i], "%d", &num1)
+		
+		num2 := 0
+		fmt.Sscanf(parts2[i], "%d", &num2)
+
+		if num1 > num2 {
+			return 1
+		}
+		if num1 < num2 {
+			return -1
+		}
+	}
+
+	// If we get here, the common parts are equal
+	if len(parts1) > len(parts2) {
+		return 1
+	}
+	if len(parts1) < len(parts2) {
+		return -1
+	}
+
+	return 0
+}