feat: add Built-in parameters: CURRENT_BRANCH, Fixes sourcegit-scm#1633

Author: heartacker

src/Resources/Locales/en_US.axaml

@@ -180,6 +180,7 @@
   ${REPO} Repository's path
   ${DIRNAME} - repository's directory name;
   ${REMOTE} Selected remote or selected branch's remote
+  ${CURRENT_BRANCH} - current branch;
   ${BRANCH} Selected branch, without ${REMOTE} part for remote branches
   ${BRANCH_FRIENDLY_NAME} Friendly name of selected branch, contains ${REMOTE} part for remote branches
   ${SHA} Selected commit's hash

src/Resources/Locales/zh_CN.axaml

@@ -183,6 +183,7 @@
 
   ${REPO} 仓库路径
   ${DIRNAME} 仓库文件夹名
+  ${CURRENT_BRANCH} 当前的分支
   ${REMOTE} 选中的远程仓库或选中分支所属的远程仓库
   ${BRANCH} 选中的分支，对于远程分支不包含远程名
   ${BRANCH_FRIENDLY_NAME} 选中的分支，对于远程分支包含远程名

src/Resources/Locales/zh_TW.axaml

@@ -183,6 +183,7 @@
 
   ${REPO} 存放庫路徑
   ${DIRNAME} 存放庫資料夾名
+  ${CURRENT_BRANCH} 當前分支
   ${REMOTE} 所選的遠端存放庫或所選分支的遠端
   ${BRANCH} 所選的分支。對於遠端分支，不包含遠端名稱
   ${BRANCH_FRIENDLY_NAME} 所選的分支。對於遠端分支，不包含遠端名稱

src/ViewModels/ExecuteCustomAction.cs

@@ -180,6 +180,7 @@ private string PrepareStringByTarget(string org)
         {
             org = org.Replace("${REPO}", GetWorkdir());
             org = org.Replace("${DIRNAME}", GetWorkdirname());
+            org = org.Replace("${CURRENT_BRANCH}", GetCurrentBranch());
 
             return Target switch
             {
@@ -201,6 +202,11 @@ private string GetWorkdirname()
             return _repo.FullPath.Replace("\\", "/").Split('/')[^1];
         }
 
+        private string GetCurrentBranch()
+        {
+            return _repo.CurrentBranch?.FriendlyName ?? string.Empty;
+        }
+
         private void Run(string args)
         {
             var start = new ProcessStartInfo();