Restructure CLI with Cobra

Replace custom switch-based routing with Cobra for cleaner command
hierarchy. Reorganize commands into logical groups:

- Root command handles deployment (--binary, --static, --domain, etc.)
- App management at top level: list, logs, status, restart, remove
- env subcommand group: list, set, unset
- host subcommand group: init, status, update, ssh
- Standalone: ui (renamed from webui), version

Add version command with ldflags support for build info.

1 files changed, 137 insertions, 0 deletions

diff --git a/cmd/deploy/host/init.go b/cmd/deploy/host/init.go
new file mode 100644
index 0000000..984e5d3
--- /dev/null
+++ b/cmd/deploy/host/init.go
@@ -0,0 +1,137 @@
+package host
+
+import (
+        "fmt"
+        "strings"
+
+        "github.com/bdw/deploy/internal/ssh"
+        "github.com/bdw/deploy/internal/state"
+        "github.com/spf13/cobra"
+)
+
+var initCmd = &cobra.Command{
+        Use:   "init",
+        Short: "Initialize VPS (one-time setup)",
+        Long:  "Set up a fresh VPS with Caddy for automatic HTTPS and required directories",
+        RunE:  runInit,
+}
+
+func runInit(cmd *cobra.Command, args []string) error {
+        st, err := state.Load()
+        if err != nil {
+                return fmt.Errorf("error loading state: %w", err)
+        }
+
+        host, _ := cmd.Flags().GetString("host")
+        if host == "" {
+                host = st.GetDefaultHost()
+        }
+
+        if host == "" {
+                return fmt.Errorf("--host is required")
+        }
+
+        fmt.Printf("Initializing VPS: %s\n", host)
+
+        client, err := ssh.Connect(host)
+        if err != nil {
+                return fmt.Errorf("error connecting to VPS: %w", err)
+        }
+        defer client.Close()
+
+        fmt.Println("-> Detecting OS...")
+        osRelease, err := client.Run("cat /etc/os-release")
+        if err != nil {
+                return fmt.Errorf("error detecting OS: %w", err)
+        }
+
+        if !strings.Contains(osRelease, "Ubuntu") && !strings.Contains(osRelease, "Debian") {
+                return fmt.Errorf("unsupported OS (only Ubuntu and Debian are supported)")
+        }
+        fmt.Println("  Detected Ubuntu/Debian")
+
+        fmt.Println("-> Checking for Caddy...")
+        _, err = client.Run("which caddy")
+        if err == nil {
+                fmt.Println("  Caddy already installed")
+        } else {
+                fmt.Println("  Installing Caddy...")
+                if err := installCaddy(client); err != nil {
+                        return err
+                }
+                fmt.Println("  Caddy installed")
+        }
+
+        fmt.Println("-> Configuring Caddy...")
+        caddyfile := `{
+        email admin@example.com
+}
+
+import /etc/caddy/sites-enabled/*
+`
+        if err := client.WriteSudoFile("/etc/caddy/Caddyfile", caddyfile); err != nil {
+                return fmt.Errorf("error creating Caddyfile: %w", err)
+        }
+        fmt.Println("  Caddyfile created")
+
+        fmt.Println("-> Creating directories...")
+        if _, err := client.RunSudo("mkdir -p /etc/deploy/env"); err != nil {
+                return fmt.Errorf("error creating /etc/deploy/env: %w", err)
+        }
+        if _, err := client.RunSudo("mkdir -p /etc/caddy/sites-enabled"); err != nil {
+                return fmt.Errorf("error creating /etc/caddy/sites-enabled: %w", err)
+        }
+        fmt.Println("  Directories created")
+
+        fmt.Println("-> Starting Caddy...")
+        if _, err := client.RunSudo("systemctl enable caddy"); err != nil {
+                return fmt.Errorf("error enabling Caddy: %w", err)
+        }
+        if _, err := client.RunSudo("systemctl restart caddy"); err != nil {
+                return fmt.Errorf("error starting Caddy: %w", err)
+        }
+        fmt.Println("  Caddy started")
+
+        fmt.Println("-> Verifying installation...")
+        output, err := client.RunSudo("systemctl is-active caddy")
+        if err != nil || strings.TrimSpace(output) != "active" {
+                fmt.Println("  Warning: Caddy may not be running properly")
+        } else {
+                fmt.Println("  Caddy is active")
+        }
+
+        st.GetHost(host)
+        if st.GetDefaultHost() == "" {
+                st.SetDefaultHost(host)
+                fmt.Printf("  Set %s as default host\n", host)
+        }
+        if err := st.Save(); err != nil {
+                return fmt.Errorf("error saving state: %w", err)
+        }
+
+        fmt.Println("\nVPS initialized successfully!")
+        fmt.Println("\nNext steps:")
+        fmt.Println("  1. Deploy a Go app:")
+        fmt.Printf("     deploy --binary ./myapp --domain api.example.com\n")
+        fmt.Println("  2. Deploy a static site:")
+        fmt.Printf("     deploy --static --dir ./dist --domain example.com\n")
+        return nil
+}
+
+func installCaddy(client *ssh.Client) error {
+        commands := []string{
+                "apt-get update",
+                "apt-get install -y debian-keyring debian-archive-keyring apt-transport-https curl",
+                "curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg",
+                "curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list",
+                "apt-get update",
+                "apt-get install -y caddy",
+        }
+
+        for _, cmd := range commands {
+                if _, err := client.RunSudo(cmd); err != nil {
+                        return fmt.Errorf("error running: %s: %w", cmd, err)
+                }
+        }
+        return nil
+}