feat(storage): add VersionedStorage interface with history/diff/branch operations

Extends Storage interface with Dolt-specific version control capabilities: - New VersionedStorage interface in storage/versioned.go with: - History queries: History(), AsOf(), Diff() - Branch operations: Branch(), Merge(), CurrentBranch(), ListBranches() - Commit operations: Commit(), GetCurrentCommit() - Conflict resolution: GetConflicts(), ResolveConflicts() - Helper types: HistoryEntry, DiffEntry, Conflict - DoltStore implements VersionedStorage interface - New CLI commands: - bd history <id> - Show issue version history - bd diff <from> <to> - Show changes between commits/branches - bd branch [name] - List or create branches - bd vc merge <branch> - Merge branch to current - bd vc commit -m <msg> - Create a commit - bd vc status - Show current branch/commit - Added --as-of flag to bd show for time-travel queries - IsVersioned() helper for graceful SQLite backend detection Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-17 01:54:55 -08:00
parent a7cd9136d8
commit 94581ab233
11 changed files with 1031 additions and 10 deletions
--- a/cmd/bd/history.go
+++ b/cmd/bd/history.go
@@ -0,0 +1,95 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/steveyegge/beads/internal/storage"
+	"github.com/steveyegge/beads/internal/ui"
+)
+
+var (
+	historyLimit int
+)
+
+var historyCmd = &cobra.Command{
+	Use:     "history <id>",
+	GroupID: "views",
+	Short:   "Show version history for an issue (requires Dolt backend)",
+	Long: `Show the complete version history of an issue, including all commits
+where the issue was modified.
+
+This command requires the Dolt storage backend. If you're using SQLite,
+you'll see an error message suggesting to use Dolt for versioning features.
+
+Examples:
+  bd history bd-123           # Show all history for issue bd-123
+  bd history bd-123 --limit 5 # Show last 5 changes`,
+	Args: cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		ctx := rootCtx
+		issueID := args[0]
+
+		// Check if storage supports versioning
+		vs, ok := storage.AsVersioned(store)
+		if !ok {
+			FatalErrorRespectJSON("history requires Dolt backend (current backend does not support versioning)")
+		}
+
+		// Get issue history
+		history, err := vs.History(ctx, issueID)
+		if err != nil {
+			FatalErrorRespectJSON("failed to get history: %v", err)
+		}
+
+		if len(history) == 0 {
+			fmt.Printf("No history found for issue %s\n", issueID)
+			return
+		}
+
+		// Apply limit if specified
+		if historyLimit > 0 && historyLimit < len(history) {
+			history = history[:historyLimit]
+		}
+
+		if jsonOutput {
+			outputJSON(history)
+			return
+		}
+
+		// Display history in human-readable format
+		fmt.Printf("\n%s History for %s (%d entries)\n\n",
+			ui.RenderAccent("📜"), issueID, len(history))
+
+		for i, entry := range history {
+			// Commit info line
+			fmt.Printf("%s %s\n",
+				ui.RenderMuted(entry.CommitHash[:8]),
+				ui.RenderMuted(entry.CommitDate.Format("2006-01-02 15:04:05")))
+			fmt.Printf("  Author: %s\n", entry.Committer)
+
+			if entry.Issue != nil {
+				// Show issue state at this commit
+				statusIcon := ui.GetStatusIcon(string(entry.Issue.Status))
+				fmt.Printf("  %s %s: %s [P%d - %s]\n",
+					statusIcon,
+					entry.Issue.ID,
+					entry.Issue.Title,
+					entry.Issue.Priority,
+					entry.Issue.Status)
+			}
+
+			// Separator between entries
+			if i < len(history)-1 {
+				fmt.Println()
+			}
+		}
+		fmt.Println()
+	},
+}
+
+func init() {
+	historyCmd.Flags().IntVar(&historyLimit, "limit", 0, "Limit number of history entries (0 = all)")
+	historyCmd.ValidArgsFunction = issueIDCompletion
+	rootCmd.AddCommand(historyCmd)
+}