Artifact [970c57e67c]

Artifact 970c57e67cd48b91ebe74940be93fdce68214ecf3c86a2b03bb9ce181ab74614:

• File internal/tag/timestamp_test.go — part of check-in [fa1895d56b] at 2026-10-18 18:15:05 on branch main — fix(manifest): record check-in and tag times to the millisecond (#440)

  Fossil and zit write D cards with exactly three fractional digits. go-libfossil wrote whatever precision the time carried, and the default clock time carries nanoseconds: legal under artifact-format §4.6.4, but zit cannot read a D card with more than three digits (danmestas/zit#244), so zit could not open a repository go-libfossil had committed to.

  Checkin and AddTag now truncate the time to the millisecond, whether the caller supplied it or the clock did. Parsed artifacts are untouched: the marshaller still keeps any precision it read, so existing artifacts round-trip byte for byte. (user: [email protected], size: 1323) [annotate] [blame] [check-ins using] [more...]

package tag_test

import (
	"regexp"
	"testing"
	"time"

	"github.com/danmestas/go-libfossil/internal/content"
	"github.com/danmestas/go-libfossil/internal/manifest"
	"github.com/danmestas/go-libfossil/internal/tag"
)

// TestAddTagWritesMillisecondTimestamps tags a check-in with a time carrying
// nanoseconds and checks the control artifact's D card has exactly three
// fractional digits, as fossil and zit write it.
func TestAddTagWritesMillisecondTimestamps(t *testing.T) {
	r := setupTestRepo(t)
	rid, _, err := manifest.Checkin(r, manifest.CheckinOpts{
		Files:   []manifest.File{{Name: "hello.txt", Content: []byte("hello")}},
		Comment: "initial commit",
		User:    "testuser",
		Time:    time.Date(2024, 1, 15, 10, 0, 0, 0, time.UTC),
	})
	if err != nil {
		t.Fatalf("Checkin: %v", err)
	}
	tagRid, err := tag.AddTag(r, tag.TagOpts{
		TargetRID: rid,
		TagName:   "testlabel",
		TagType:   tag.TagSingleton,
		User:      "testuser",
		Time:      time.Date(2024, 1, 15, 11, 0, 0, 987654321, time.UTC),
	})
	if err != nil {
		t.Fatalf("tag.AddTag: %v", err)
	}
	data, err := content.Expand(r.DB(), tagRid)
	if err != nil {
		t.Fatalf("Expand: %v", err)
	}
	millis := regexp.MustCompile(`(?m)^D 2024-01-15T11:00:00\.987$`)
	if !millis.Match(data) {
		t.Fatalf("D card is not millisecond precision:\n%s", data)
	}
}