split into packages

internal/zfs/zfs.go

@@ -0,0 +1,31 @@
+package zfs
+
+import (
+	"context"
+	"fmt"
+	"os/exec"
+	"time"
+)
+
+type Snapshot struct {
+	SnapshotName string // Name sans dataset (the part after the '@')
+	Name         string // Full dataset@snapname
+	Dataset      string
+	Creation     time.Time
+	GUID         int64
+}
+
+func Cmd(ctx context.Context, arg string, a ...any) ([]byte, error) {
+	if len(a) > 0 {
+		arg = fmt.Sprintf(arg, a...)
+	}
+
+	cmd := exec.CommandContext(ctx, "/bin/sh", "-c", arg)
+
+	fmt.Printf("zfs: %+v\n", arg)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return out, err
+	}
+	return out, err
+}