1 files changed, 30 insertions, 0 deletions
diff --git a/cmd/explain-pack/fmt.go b/cmd/explain-pack/fmt.go
new file mode 100644
index 00000000..a3d1b333
--- /dev/null
+++ b/cmd/explain-pack/fmt.go
@@ -0,0 +1,30 @@
+package main
+
+import (
+	"bytes"
+	"encoding/hex"
+	"io"
+
+	"lindenii.org/go/furgit/internal/utils"
+)
+
+func indentBlock(out io.Writer, indent string, block []byte) {
+	lines := bytes.Split(block, []byte("\n"))
+	if n := len(lines); n > 0 && len(lines[n-1]) == 0 {
+		lines = lines[:n-1]
+	}
+
+	for _, line := range lines {
+		utils.BestEffortFprintf(out, "%s%s\n", indent, line)
+	}
+}
+
+func hexBlock(out io.Writer, indent string, data []byte) {
+	var buf bytes.Buffer
+
+	dumper := hex.Dumper(&buf)
+	_, _ = dumper.Write(data)
+	_ = dumper.Close()
+
+	indentBlock(out, indent, buf.Bytes())
+}