From d4ccb69ccc56fb57cad48493a9e5e78ca3529a84 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Mon, 28 Feb 2022 21:49:19 +0000
Subject: [PATCH] Check if directory exists with the same target executable
 name when building a directory

---
 src/parser.cpp | 16 ++++++++++++++++
 src/parser.hpp |  1 +
 2 files changed, 17 insertions(+)

diff --git a/src/parser.cpp b/src/parser.cpp
index 9659e8c18..f70afe346 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -5719,6 +5719,22 @@ ParseFileError parse_packages(Parser *p, String init_filename) {
 			error_line("Expected either a directory or a .odin file, got '%.*s'\n", LIT(init_filename));
 			return ParseFile_WrongExtension;
 		}
+	} else if (init_fullpath.len != 0) {
+		String path = init_fullpath;
+		if (path[path.len-1] == '/') {
+			path.len -= 1;
+		}
+		if ((build_context.command_kind & Command__does_build) &&
+		    build_context.build_mode == BuildMode_Executable) {
+			String short_path = filename_from_path(path);
+			char *cpath = alloc_cstring(heap_allocator(), short_path);
+			defer (gb_free(heap_allocator(), cpath));
+
+			if (gb_file_exists(cpath)) {
+			    	error_line("Please specify the executable name with -out:<string> as a directory exists with the same name in the current working directory");
+			    	return ParseFile_DirectoryAlreadyExists;
+			}
+		}
 	}
 	
 
diff --git a/src/parser.hpp b/src/parser.hpp
index f6791a291..c33d1520b 100644
--- a/src/parser.hpp
+++ b/src/parser.hpp
@@ -46,6 +46,7 @@ enum ParseFileError {
 	ParseFile_InvalidToken,
 	ParseFile_GeneralError,
 	ParseFile_FileTooLarge,
+	ParseFile_DirectoryAlreadyExists,
 
 	ParseFile_Count,
 };