Artifact [e9e5d6f067]

Artifact e9e5d6f067c5f93c0e06825f99894e0a32e78f0d51ebefd65efd882e7ab495c5:

• File internal/delta/example_test.go — part of check-in [f5744359d3] at 2026-04-19 16:30:54 on branch trunk — Initial open source release

  libfossil is a pure-Go implementation of the Fossil SCM, reading and writing the same .fossil SQLite repository format as upstream Fossil.

  This is the first public release of code that previously lived in a private repository. The module path is github.com/danmestas/libfossil and the binary is named libfossil to avoid $PATH collisions with upstream fossil.

  Included: - Repo lifecycle (create, clone), checkout/checkin, timeline, merge, diff, annotate, shun, tag, branch, bisect, stash, undo/redo - Sync-over-HTTP protocol (client and handler) - Two SQLite drivers: modernc (pure Go, default) and ncruces (wasm-capable) - Observer interfaces (SyncObserver, CheckoutObserver) with an optional OpenTelemetry implementation in observer/otel (separate submodule) - Deterministic simulation testing harness with BUGGIFY fault injection - Kong-based embeddable CLI under cli/ and a standalone binary under cmd/libfossil/ (user: [email protected], size: 671) [annotate] [blame] [check-ins using]

package delta_test

import (
	"fmt"

	"github.com/danmestas/libfossil/internal/delta"
)

func ExampleCreate() {
	source := []byte("the quick brown fox jumps over the lazy dog\n")
	target := []byte("the quick brown fox leaps over the lazy dog\n")

	d := delta.Create(source, target)

	// Delta is smaller than storing the full target.
	fmt.Printf("delta smaller: %v\n", len(d) < len(target))

	// Apply reconstructs the target from source + delta.
	reconstructed, err := delta.Apply(source, d)
	if err != nil {
		fmt.Println("error:", err)
		return
	}
	fmt.Print(string(reconstructed))
	// Output:
	// delta smaller: true
	// the quick brown fox leaps over the lazy dog
}