now compatible with old git version, at least 1.8.3.1

local.cxx

@@ -98,9 +98,9 @@ void processGit(string filename)
 	string newfile = nf;
 	newfile = oldname + newfile + "__" + GetMachineID() + ".json";
 	//we must pull the submodule first to ensure all is up to date
-	if (system("git -C ./caenslowcontrol_json pull > gitlog.txt") != 0)
+	if (system("git --git-dir=./caenslowcontrol_json/.git pull > gitlog.txt") != 0)
 	{
-		ShowError("git -C ./caenslowcontrol_json pull > gitlog.txt");
+		ShowError("git --git-dir=./caenslowcontrol_json/.git pull > gitlog.txt");
 		return;
 	}
 	sleep(1);
@@ -121,7 +121,7 @@ void processGit(string filename)
 
 	//git add	
 	path = PROJECT_NAME;
-	cmd = "git -C ./caenslowcontrol_json add " + path + "/" + newfile + " >> gitlog.txt";
+	cmd = "git --git-dir=./caenslowcontrol_json/.git add " + path + "/" + newfile + " >> gitlog.txt";
 	if (system(cmd.c_str()) != 0)
 	{
 		ShowError(cmd);
@@ -131,7 +131,7 @@ void processGit(string filename)
 
 	//git commit
 	string commit = "\"autopush of " + newfile + "\"";
-	cmd = "git -C ./caenslowcontrol_json commit -m " + commit + " >> gitlog.txt";
+	cmd = "git --git-dir=./caenslowcontrol_json/.git commit -m " + commit + " >> gitlog.txt";
 	if (system(cmd.c_str()) != 0)
 	{
 		ShowError(cmd);
@@ -139,7 +139,7 @@ void processGit(string filename)
 	}
 
 	//git push
-	cmd = "git -C ./caenslowcontrol_json push >> gitlog.txt";
+	cmd = "git --git-dir=./caenslowcontrol_json/.git push >> gitlog.txt";
 	if (system(cmd.c_str()) != 0)
 	{
 		ShowError(cmd);