chore: add constants and replace in code

Author: jescalada

src/proxy/processors/constants.ts

@@ -0,0 +1,5 @@
+export const BRANCH_PREFIX = 'refs/heads/';
+export const EMPTY_COMMIT_HASH = '0000000000000000000000000000000000000000';
+export const FLUSH_PACKET = '0000';
+export const PACK_SIGNATURE = 'PACK';
+export const PACKET_SIZE = 4;

src/proxy/processors/push-action/getDiff.ts

@@ -1,6 +1,8 @@
 import { Action, Step } from '../../actions';
 import simpleGit from 'simple-git';
 
+import { EMPTY_COMMIT_HASH } from '../constants';
+
 const exec = async (req: any, action: Action): Promise<Action> => {
   const step = new Step('diff');
 
@@ -18,8 +20,8 @@ const exec = async (req: any, action: Action): Promise<Action> => {
       return action;
     }
 
-    if (action.commitFrom === '0000000000000000000000000000000000000000') {
-      if (action.commitData[0].parent !== '0000000000000000000000000000000000000000') {
+    if (action.commitFrom === EMPTY_COMMIT_HASH) {
+      if (action.commitData[0].parent !== EMPTY_COMMIT_HASH) {
         commitFrom = `${action.commitData[action.commitData.length - 1].parent}`;
       }
     } else {

src/proxy/processors/push-action/getMissingData.ts

@@ -2,6 +2,8 @@ import { Action, Step } from '../../actions';
 import { validateUser } from './checkUserPushPermission';
 import simpleGit from 'simple-git';
 
+import { EMPTY_COMMIT_HASH } from '../constants';
+
 const exec = async (req: any, action: Action): Promise<Action> => {
   const step = new Step('getMissingData');
 
@@ -31,7 +33,7 @@ const exec = async (req: any, action: Action): Promise<Action> => {
       });
       console.log(`Updated commitData:`, { commitData: action.commitData });
 
-      if (action.commitFrom === '0000000000000000000000000000000000000000') {
+    if (action.commitFrom === EMPTY_COMMIT_HASH) {
         action.commitFrom = action.commitData[action.commitData.length - 1].parent;
       }
       const user = action.commitData[action.commitData.length - 1].committer;