upd: replace HashMap to IndexMap to preserve header's order

2 files changed, 17 insertions, 10 deletions

diff --git a/src/object.rs b/src/object.rs
index aa5f434..90a06f4 100644
--- a/src/object.rs
+++ b/src/object.rs
@@ -1,14 +1,14 @@
-use std::collections::HashMap;
-use std::fs;
+use crate::utilities::deserialize_kv_with_message;
 use crate::{create_path_or_die, die};
+use derive_is_enum_variant::is_enum_variant;
 use flate2::read::{ZlibDecoder, ZlibEncoder};
+use flate2::Compression;
+use indexmap::IndexMap;
+use sha1::{Digest, Sha1};
+use std::fs;
 use std::fs::File;
 use std::io::{BufReader, Read, Write};
 use std::path::PathBuf;
-use derive_is_enum_variant::is_enum_variant;
-use flate2::Compression;
-use sha1::{Digest, Sha1};
-use crate::utilities::deserialize_kv_with_message;
 
 #[derive(is_enum_variant)]
 pub enum GitObjectType {
@@ -120,14 +120,14 @@ impl GitObject {
 }
 
 pub struct GitCommit {
-    header: HashMap<String, String>,
+    header: IndexMap<String, String>,
     message: String,
 }
 
 impl GitCommit {
     pub fn new() -> Self {
         Self {
-            header: HashMap::new(),
+            header: IndexMap::new(),
             message: String::new(),
         }
     }
diff --git a/src/utilities.rs b/src/utilities.rs
index 8f80ecd..1a19f20 100644
--- a/src/utilities.rs
+++ b/src/utilities.rs
@@ -1,3 +1,4 @@
+use indexmap::IndexMap;
 use std::collections::HashMap;
 use std::path::PathBuf;
 
@@ -50,14 +51,14 @@ pub fn path_should_not_exist(path: &PathBuf, message: &str) {
     }
 }
 
-pub fn deserialize_kv_with_message(data: &Vec<u8>) -> (HashMap<String, String>, String) {
+pub fn deserialize_kv_with_message(data: &Vec<u8>) -> (IndexMap<String, String>, String) {
     let string_rep = String::from_utf8(data.clone());
     if string_rep.is_err() {
         die!("Failed to parse commit data");
     }
     let string_rep = string_rep.unwrap();
     let mut is_message = false;
-    let mut header: HashMap<String, String> = HashMap::new();
+    let mut header: IndexMap<String, String> = IndexMap::new();
     let mut message = String::new();
     let mut last_key: Option<String> = None;
     for line in string_rep.lines() {
@@ -95,3 +96,9 @@ pub fn deserialize_kv_with_message(data: &Vec<u8>) -> (HashMap<String, String>,
     }
     (header, message)
 }
+
+pub fn serialize_kv_with_message(header: &HashMap<String, String>, message: &str) {
+    for (key, val) in header.into_iter() {
+
+    }
+}