From 094afdb15aa72f2e687534c57babc00bbf0f0467 Mon Sep 17 00:00:00 2001
From: zutto <zutto@localdomain.localtld>
Date: Sun, 17 Apr 2022 01:33:34 +0300
Subject: [PATCH] update readme & add header_test sample cmd

---
 README.md                    |  2 +-
 cmd/samples/header_encode.go | 27 +++++++++++++++++++++++++++
 pkg/headers/headers_test.go  |  3 ++-
 3 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 cmd/samples/header_encode.go

diff --git a/README.md b/README.md
index 6abc1bc..0b90ce5 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
 # Project in progress.
 
-[Click here for more](https://zutto.fi/posts/data-structure/)
+[Click here for more](https://zutto.fi/posts/db/headers/)
diff --git a/cmd/samples/header_encode.go b/cmd/samples/header_encode.go
new file mode 100644
index 0000000..1542ab4
--- /dev/null
+++ b/cmd/samples/header_encode.go
@@ -0,0 +1,27 @@
+package main
+
+import (
+	"crypto/rand"
+	"fmt"
+
+	"git.zutto.fi/zutto/db/pkg/headers"
+)
+
+func main() {
+	h := headers.Headers{
+		HeaderString: []byte(headers.HeaderString),
+		PageSize:     uint64(256 ^ 2),
+		DBVersion:    uint16(1),
+
+		WAL:    false,
+		Commit: make([]byte, headers.CommitDataLength),
+	}
+
+	//generate random string for the commit..
+	_, err := rand.Read(h.Commit[:headers.CommitDataLength])
+	if err != nil {
+		fmt.Errorf("Failed to generate random string")
+	}
+
+	fmt.Printf("%c", h.Generate())
+}
diff --git a/pkg/headers/headers_test.go b/pkg/headers/headers_test.go
index 097b2b1..5e55a05 100644
--- a/pkg/headers/headers_test.go
+++ b/pkg/headers/headers_test.go
@@ -2,6 +2,7 @@ package headers
 
 import (
 	"crypto/rand"
+	"fmt"
 	"reflect"
 	"testing"
 )
@@ -23,7 +24,7 @@ func TestHeaders_Generate(t *testing.T) {
 	}
 
 	output := h.Generate()
-
+	fmt.Printf("%c", output)
 	h2 := Headers{}
 	h2.Parse(output, 0)