Artifact [9eb28b17dd]

Artifact 9eb28b17dddd191c361cc55cc5f015f0584a4b1621eee12aa9fbe383cd61214c:

• File simio/storage.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: 1326) [annotate] [blame] [check-ins using]

package simio

import (
	"io/fs"
	"os"
	"time"
)

// Storage abstracts filesystem operations for WASM portability.
type Storage interface {
	Stat(path string) (os.FileInfo, error)
	Remove(path string) error
	MkdirAll(path string, perm os.FileMode) error
	ReadFile(path string) ([]byte, error)
	WriteFile(path string, data []byte, perm os.FileMode) error
	ReadDir(path string) ([]fs.DirEntry, error)
	Chtimes(path string, atime, mtime time.Time) error
}

// OSStorage delegates to the os package. Used in production and WASI.
type OSStorage struct{}

func (OSStorage) Stat(path string) (os.FileInfo, error)                       { return os.Stat(path) }
func (OSStorage) Remove(path string) error                                     { return os.Remove(path) }
func (OSStorage) MkdirAll(path string, perm os.FileMode) error                { return os.MkdirAll(path, perm) }
func (OSStorage) ReadFile(path string) ([]byte, error)                         { return os.ReadFile(path) }
func (OSStorage) WriteFile(path string, data []byte, perm os.FileMode) error  { return os.WriteFile(path, data, perm) }
func (OSStorage) ReadDir(path string) ([]fs.DirEntry, error)                  { return os.ReadDir(path) }
func (OSStorage) Chtimes(path string, atime, mtime time.Time) error           { return os.Chtimes(path, atime, mtime) }