git-wrapper: support the non-mintty fall-back for Git Bash

When we fall back to starting the Git Bash in the regular Windows
console, we need to show said console's window... So let's introduce yet
another configuration knob for use via string resources.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

compat/win32/git-wrapper.c

@@ -187,9 +187,9 @@ static int strip_prefix(LPWSTR str, int *len, LPCWSTR prefix)
 static int configure_via_resource(LPWSTR basename, LPWSTR exepath, LPWSTR exep,
 	LPWSTR *prefix_args, int *prefix_args_len,
 	int *is_git_command, LPWSTR *working_directory, int *full_path,
-	int *skip_arguments, int *allocate_console)
+	int *skip_arguments, int *allocate_console, int *show_console)
 {
-	int id, minimal_search_path, needs_a_console, wargc;
+	int id, minimal_search_path, needs_a_console, no_hide, wargc;
 	LPWSTR *wargv;
 
 #define BUFSIZE 65536
@@ -199,6 +199,7 @@ static int configure_via_resource(LPWSTR basename, LPWSTR exepath, LPWSTR exep,
 	for (id = 0; ; id++) {
 		minimal_search_path = 0;
 		needs_a_console = 0;
+		no_hide = 0;
 		len = LoadString(NULL, id, buf, BUFSIZE);
 
 		if (!len) {
@@ -221,6 +222,8 @@ static int configure_via_resource(LPWSTR basename, LPWSTR exepath, LPWSTR exep,
 				minimal_search_path = 1;
 			else if (strip_prefix(buf, &len, L"ALLOC_CONSOLE=1 "))
 				needs_a_console = 1;
+			else if (strip_prefix(buf, &len, L"SHOW_CONSOLE=1 "))
+				no_hide = 1;
 			else
 				break;
 		}
@@ -303,6 +306,8 @@ static int configure_via_resource(LPWSTR basename, LPWSTR exepath, LPWSTR exep,
 		*full_path = 0;
 	if (needs_a_console)
 		*allocate_console = 1;
+	if (no_hide)
+		*show_console = 1;
 	LocalFree(wargv);
 
 	return 1;
@@ -312,7 +317,7 @@ int main(void)
 {
 	int r = 1, wait = 1, prefix_args_len = -1, needs_env_setup = 1,
 		is_git_command = 1, full_path = 1, skip_arguments = 0,
-		allocate_console = 0;
+		allocate_console = 0, show_console = 0;
 	WCHAR exepath[MAX_PATH], exe[MAX_PATH];
 	LPWSTR cmd = NULL, exep = exe, prefix_args = NULL, basename;
 	LPWSTR working_directory = NULL;
@@ -332,7 +337,8 @@ int main(void)
 	if (configure_via_resource(basename, exepath, exep,
 			&prefix_args, &prefix_args_len,
 			&is_git_command, &working_directory,
-			&full_path, &skip_arguments, &allocate_console)) {
+			&full_path, &skip_arguments, &allocate_console,
+			&show_console)) {
 		/* do nothing */
 	}
 	else if (!wcsicmp(basename, L"git-gui.exe")) {
@@ -445,7 +451,7 @@ int main(void)
 		ZeroMemory(&si, sizeof(STARTUPINFO));
 		si.cb = sizeof(STARTUPINFO);
 
-		if (allocate_console)
+		if (allocate_console | show_console)
 			creation_flags |= CREATE_NEW_CONSOLE;
 		else if ((console_handle = CreateFile(L"CONOUT$", GENERIC_WRITE,
 				FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
@@ -462,6 +468,10 @@ int main(void)
 
 			creation_flags |= CREATE_NO_WINDOW;
 		}
+		if (show_console) {
+			si.dwFlags |= STARTF_USESHOWWINDOW;
+			si.wShowWindow = SW_SHOW;
+		}
 		br = CreateProcess(/* module: null means use command line */
 				exep,
 				cmd,  /* modified command line */