Beginning to lift the "grime" files to their own pacakge

code/grime/filesystem.odin

@@ -0,0 +1,65 @@
+package grime
+// TODO(Ed): Review when os2 is done.
+
+import "core:fmt"
+import "core:os"
+import "base:runtime"
+
+file_copy_sync :: proc( path_src, path_dst: string, allocator := context.allocator ) -> b32
+{
+  file_size : i64
+	{
+		path_info, result := file_status( path_src, allocator )
+		if result != os.ERROR_NONE {
+			logf("Could not get file info: %v", result, LogLevel.Error )
+			return false
+		}
+		file_size = path_info.size
+	}
+
+	src_content, result := os.read_entire_file( path_src, allocator )
+	if ! result {
+		logf( "Failed to read file to copy: %v", path_src, LogLevel.Error )
+		runtime.debug_trap()
+		return false
+	}
+
+	result = os.write_entire_file( path_dst, src_content, false )
+	if ! result {
+		logf( "Failed to copy file: %v", path_dst, LogLevel.Error )
+		runtime.debug_trap()
+		return false
+	}
+	return true
+}
+
+file_exists :: proc( file_path : string, allocator := context.allocator ) -> b32 {
+	path_info, result := file_status( file_path, allocator )
+	if result != os.ERROR_NONE {
+		return false
+	}
+	return true;
+}
+
+file_is_locked :: proc( file_path : string ) -> b32 {
+	handle, err := file_open(file_path, os.O_RDONLY)
+	if err != os.ERROR_NONE {
+			// If the error indicates the file is in use, return true.
+			return true
+	}
+
+	// If the file opens successfully, close it and return false.
+	file_close(handle)
+	return false
+}
+
+file_rewind :: proc( file : os.Handle ) {
+	file_seek( file, 0, 0 )
+}
+
+file_read_looped :: proc( file : os.Handle, data : []byte ) {
+	total_read, result_code := file_read( file, data )
+	if result_code == os.ERROR_HANDLE_EOF {
+		file_rewind( file )
+	}
+}