run_command(): respect GIT_TRACE

When GIT_TRACE is set, the user is most likely wanting to see an external
command that is about to be executed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/run-command.c b/run-command.c
index 44100a7..7068ec7 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -65,6 +65,8 @@ int start_command(struct child_process *cmd)
                cmd->err = fderr[0];
        }
 
+       trace_argv_printf(cmd->argv, "trace: run_command:");
+
        cmd->pid = fork();
        if (cmd->pid < 0) {
                if (need_in)