Initial project scaffolding

- main.go: CLI entry point with flag parsing
- gitignore.go: .gitignore loading and parsing
- sync.go: initial sync with manifest tracking
- watcher.go: fsnotify-based file watcher with debouncing
- Dockerfile: multi-stage build for Alpine runtime

1 files changed, 37 insertions, 0 deletions

diff --git a/main.go b/main.go
new file mode 100644
index 0000000..345436f
--- /dev/null
+++ b/main.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+	"flag"
+	"log"
+)
+
+var (
+	hostDir  = flag.String("host", "/host", "Host source directory (read-only)")
+	dataDir  = flag.String("data", "/data", "Data destination directory")
+	verbose  = flag.Bool("verbose", false, "Enable verbose logging")
+	dryRun   = flag.Bool("dry-run", false, "Preview what would be synced without copying")
+)
+
+func main() {
+	flag.Parse()
+	log.SetFlags(log.LstdFlags | log.Lshortfile)
+
+	if *verbose {
+		log.Println("sourcewatch starting...")
+		log.Printf("host: %s, data: %s, dry-run: %v", *hostDir, *dataDir, *dryRun)
+	}
+
+	rules, err := loadGitignore(*hostDir)
+	if err != nil {
+		log.Fatalf("failed to load .gitignore: %v", err)
+	}
+
+	manifest, err := initialSync(*hostDir, *dataDir, rules, *dryRun)
+	if err != nil {
+		log.Fatalf("initial sync failed: %v", err)
+	}
+
+	if err := watch(*hostDir, *dataDir, manifest, rules, *dryRun, *verbose); err != nil {
+		log.Fatalf("watcher failed: %v", err)
+	}
+}