run-command.c: print new cwd in trace_run_command()

If a command sets a new env variable GIT_DIR=.git, we need more context
to know where that '.git' is related to.

Signed-off-by: Nguyễn Thái Ngọc Duy <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pclouds

run-command.c

@@ -622,6 +622,11 @@ static void trace_run_command(const struct child_process *cp)
 		return;
 
 	strbuf_addf(&buf, "trace: run_command:");
+	if (cp->dir) {
+		strbuf_addstr(&buf, " cd ");
+		sq_quote_buf_pretty(&buf, cp->dir);
+		strbuf_addch(&buf, ';');
+	}
 	/*
 	 * The caller is responsible for initializing cp->env from
 	 * cp->env_array if needed. We only check one place.