feat: add gt install command for harness creation
Implements gt-f9x.3: Create Gas Town workspace structure. The install command creates a new harness (workspace) with: - config/town.json - Town configuration with name and version - config/rigs.json - Empty rigs registry - mayor/ - Mayor agent home with: - CLAUDE.md - Mayor role context from template - config.json - Distinguishes town-level mayor - mail/inbox.jsonl - Empty inbox - state.json - Initial state - .beads/redirect - Placeholder for default beads location Usage: gt install ~/gt # Create at path gt install . --name mytown # Current dir with name gt install ~/gt --no-beads # Skip beads setup 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Steve Yegge
231
internal/cmd/install.go
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231
internal/cmd/install.go
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package cmd
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import (
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"encoding/json"
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"fmt"
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"os"
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"path/filepath"
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"time"
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"github.com/spf13/cobra"
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"github.com/steveyegge/gastown/internal/config"
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"github.com/steveyegge/gastown/internal/style"
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"github.com/steveyegge/gastown/internal/templates"
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"github.com/steveyegge/gastown/internal/workspace"
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)
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var (
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installForce bool
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installName string
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installNoBeads bool
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)
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var installCmd = &cobra.Command{
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Use: "install [path]",
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Short: "Create a new Gas Town harness (workspace)",
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Long: `Create a new Gas Town harness at the specified path.
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A harness is the top-level directory where Gas Town is installed. It contains:
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- config/town.json Town configuration
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- config/rigs.json Registry of managed rigs
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- mayor/ Mayor agent home
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- .beads/redirect (optional) Default beads location
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If path is omitted, uses the current directory.
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Examples:
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gt install ~/gt # Create harness at ~/gt
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gt install . --name my-workspace # Initialize current dir
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gt install ~/gt --no-beads # Skip .beads/redirect setup`,
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Args: cobra.MaximumNArgs(1),
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RunE: runInstall,
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}
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func init() {
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installCmd.Flags().BoolVarP(&installForce, "force", "f", false, "Overwrite existing harness")
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installCmd.Flags().StringVarP(&installName, "name", "n", "", "Town name (defaults to directory name)")
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installCmd.Flags().BoolVar(&installNoBeads, "no-beads", false, "Skip .beads/redirect setup")
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rootCmd.AddCommand(installCmd)
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}
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func runInstall(cmd *cobra.Command, args []string) error {
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// Determine target path
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targetPath := "."
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if len(args) > 0 {
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targetPath = args[0]
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}
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// Expand ~ and resolve to absolute path
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if targetPath[0] == '~' {
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home, err := os.UserHomeDir()
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if err != nil {
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return fmt.Errorf("getting home directory: %w", err)
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}
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targetPath = filepath.Join(home, targetPath[1:])
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}
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absPath, err := filepath.Abs(targetPath)
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if err != nil {
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return fmt.Errorf("resolving path: %w", err)
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}
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// Determine town name
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townName := installName
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if townName == "" {
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townName = filepath.Base(absPath)
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}
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// Check if already a workspace
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if isWS, _ := workspace.IsWorkspace(absPath); isWS && !installForce {
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return fmt.Errorf("directory is already a Gas Town harness (use --force to reinitialize)")
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}
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// Check if inside an existing workspace
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if existingRoot, _ := workspace.Find(absPath); existingRoot != "" && existingRoot != absPath {
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fmt.Printf("%s Warning: Creating harness inside existing workspace at %s\n",
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style.Dim.Render("⚠"), existingRoot)
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}
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fmt.Printf("%s Creating Gas Town harness at %s\n\n",
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style.Bold.Render("🏭"), style.Dim.Render(absPath))
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// Create directory structure
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if err := os.MkdirAll(absPath, 0755); err != nil {
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return fmt.Errorf("creating directory: %w", err)
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}
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// Create config directory
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configDir := filepath.Join(absPath, "config")
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if err := os.MkdirAll(configDir, 0755); err != nil {
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return fmt.Errorf("creating config directory: %w", err)
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}
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fmt.Printf(" ✓ Created config/\n")
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// Create town.json
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townConfig := &config.TownConfig{
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Type: "town",
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Version: config.CurrentTownVersion,
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Name: townName,
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CreatedAt: time.Now(),
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}
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townPath := filepath.Join(configDir, "town.json")
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if err := config.SaveTownConfig(townPath, townConfig); err != nil {
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return fmt.Errorf("writing town.json: %w", err)
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}
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fmt.Printf(" ✓ Created config/town.json\n")
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// Create rigs.json
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rigsConfig := &config.RigsConfig{
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Version: config.CurrentRigsVersion,
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Rigs: make(map[string]config.RigEntry),
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}
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rigsPath := filepath.Join(configDir, "rigs.json")
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if err := config.SaveRigsConfig(rigsPath, rigsConfig); err != nil {
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return fmt.Errorf("writing rigs.json: %w", err)
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}
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fmt.Printf(" ✓ Created config/rigs.json\n")
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// Create mayor directory
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mayorDir := filepath.Join(absPath, "mayor")
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if err := os.MkdirAll(mayorDir, 0755); err != nil {
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return fmt.Errorf("creating mayor directory: %w", err)
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}
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fmt.Printf(" ✓ Created mayor/\n")
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// Create mayor mail directory
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mailDir := filepath.Join(mayorDir, "mail")
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if err := os.MkdirAll(mailDir, 0755); err != nil {
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return fmt.Errorf("creating mail directory: %w", err)
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}
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// Create empty inbox
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inboxPath := filepath.Join(mailDir, "inbox.jsonl")
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if err := os.WriteFile(inboxPath, []byte{}, 0644); err != nil {
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return fmt.Errorf("creating inbox: %w", err)
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}
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fmt.Printf(" ✓ Created mayor/mail/inbox.jsonl\n")
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// Create mayor state.json
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mayorState := &config.AgentState{
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Role: "mayor",
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LastActive: time.Now(),
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}
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statePath := filepath.Join(mayorDir, "state.json")
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if err := config.SaveAgentState(statePath, mayorState); err != nil {
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return fmt.Errorf("writing mayor state: %w", err)
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}
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fmt.Printf(" ✓ Created mayor/state.json\n")
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// Create mayor config.json (this is what distinguishes town-level mayor)
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mayorConfig := map[string]interface{}{
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"type": "mayor",
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"version": 1,
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}
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mayorConfigPath := filepath.Join(mayorDir, "config.json")
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if err := writeJSON(mayorConfigPath, mayorConfig); err != nil {
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return fmt.Errorf("writing mayor config: %w", err)
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}
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fmt.Printf(" ✓ Created mayor/config.json\n")
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// Create Mayor CLAUDE.md from template
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if err := createMayorCLAUDEmd(mayorDir, absPath); err != nil {
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fmt.Printf(" %s Could not create CLAUDE.md: %v\n", style.Dim.Render("⚠"), err)
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} else {
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fmt.Printf(" ✓ Created mayor/CLAUDE.md\n")
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}
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// Create .beads directory with redirect (optional)
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if !installNoBeads {
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beadsDir := filepath.Join(absPath, ".beads")
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if err := os.MkdirAll(beadsDir, 0755); err != nil {
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fmt.Printf(" %s Could not create .beads/: %v\n", style.Dim.Render("⚠"), err)
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} else {
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// Create redirect file with placeholder
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redirectPath := filepath.Join(beadsDir, "redirect")
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redirectContent := "# Redirect to your main rig's beads\n# Example: gastown/.beads\n"
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if err := os.WriteFile(redirectPath, []byte(redirectContent), 0644); err != nil {
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fmt.Printf(" %s Could not create redirect: %v\n", style.Dim.Render("⚠"), err)
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} else {
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fmt.Printf(" ✓ Created .beads/redirect (configure for your main rig)\n")
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}
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}
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}
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fmt.Printf("\n%s Harness created successfully!\n", style.Bold.Render("✓"))
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fmt.Println()
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fmt.Println("Next steps:")
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fmt.Printf(" 1. Add a rig: %s\n", style.Dim.Render("gt rig add <name> <git-url>"))
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fmt.Printf(" 2. Configure beads redirect: %s\n", style.Dim.Render("edit .beads/redirect"))
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fmt.Printf(" 3. Start the Mayor: %s\n", style.Dim.Render("cd "+absPath+" && gt prime"))
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return nil
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}
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func createMayorCLAUDEmd(mayorDir, townRoot string) error {
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tmpl, err := templates.New()
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if err != nil {
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return err
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}
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data := templates.RoleData{
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Role: "mayor",
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TownRoot: townRoot,
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WorkDir: mayorDir,
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}
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content, err := tmpl.RenderRole("mayor", data)
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if err != nil {
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return err
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}
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claudePath := filepath.Join(mayorDir, "CLAUDE.md")
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return os.WriteFile(claudePath, []byte(content), 0644)
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}
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func writeJSON(path string, data interface{}) error {
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content, err := json.MarshalIndent(data, "", " ")
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if err != nil {
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return err
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}
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return os.WriteFile(path, content, 0644)
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}
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