Artifact [549bab84e2]

Artifact 549bab84e2546401650ee634c07c6af2eca5c8f2a6d03f0030082f8d94559935:

• File cli/repo_timeline.go — part of check-in [ee3ccc7c67] at 2026-10-22 17:21:12 on branch feat/horizon-cones — feat(history): render a horizon boundary as the horizon

  A parent the origin labelled below a structural horizon is the horizon itself (draft-fossil-horizon-00 5.4), but the history views showed it as a bare parent hash, and the ancestry walk tried to read an event for it.

  LogEntry and TimelineEntry gain HorizonParents, the subset of Parents that carries a boundary label; Ancestry ends at such a parent without an error; repo timeline prints it as "parent: <hash> (horizon)". An absent parent that is not labelled is transit and renders as before. (user: [email protected], size: 1284) [annotate] [blame] [check-ins using] [more...]

package cli

import (
	"fmt"

	libfossil "github.com/danmestas/go-libfossil"
)

// RepoTimelineCmd shows repository timeline/history.
type RepoTimelineCmd struct {
	Limit int `short:"n" default:"20" help:"Number of entries"`
}

func (c *RepoTimelineCmd) Run(g *Globals) error {
	r, err := g.OpenRepo()
	if err != nil {
		return err
	}
	defer r.Close()

	entries, err := r.Timeline(libfossil.TimelineOpts{Limit: c.Limit})
	if err != nil {
		return err
	}

	for _, e := range entries {
		uuid := e.UUID
		if len(uuid) > 10 {
			uuid = uuid[:10]
		}
		// A check-in with no recorded user (event.user IS NULL) comes back
		// from the library as "" — TimelineEntry.User never leaks a nullable type.
		// Canonical fossil renders that case as "?" on the TTY
		// (coalesce(euser,user,'?') in timeline_query_for_tty()); match it
		// here at the presentation boundary rather than in the library.
		user := e.User
		if user == "" {
			user = "?"
		}
		fmt.Printf("%s  %s  %s  %s\n", uuid, e.Time.Format("2006-01-02 15:04"), user, e.Comment)
		// A parent the origin labelled below a structural horizon is the
		// horizon itself, not a missing parent (draft-fossil-horizon-00 §5.4).
		for _, p := range e.HorizonParents {
			fmt.Printf("  parent: %s (horizon)\n", p)
		}
	}
	return nil
}