From a6edfa4c3b061d25bb5bdcc2dc7cfa783e4fe6ae Mon Sep 17 00:00:00 2001
From: Pim van Pelt <pim@ipng.nl>
Date: Sun, 22 Apr 2018 14:39:17 +0200
Subject: [PATCH] allow logger to (left)truncate long file and func names

---
 src/mgos_mock.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/mgos_mock.c b/src/mgos_mock.c
index 0f53d17..3bf07a6 100644
--- a/src/mgos_mock.c
+++ b/src/mgos_mock.c
@@ -24,6 +24,9 @@ int _mgos_timers = 0;
 
 int log_print_prefix(enum cs_log_level l, const char *func, const char *file) {
   char ll_str[6];
+  char ll_file[31];
+  char ll_func[41];
+  size_t offset=0;
 
   switch(l) {
     case LL_ERROR:
@@ -44,7 +47,20 @@ int log_print_prefix(enum cs_log_level l, const char *func, const char *file) {
     default:                     // LL_NONE
       return 0;
   }
-  printf ("%-5s %-20s %-40s| ", ll_str, file, func);
+
+  offset=0;
+  memset(ll_file, 0, sizeof(ll_file));
+  if (strlen(file) >= sizeof(ll_file))
+    offset=strlen(file)-sizeof(ll_file)+1;
+  strncpy(ll_file, file+offset, sizeof(ll_file)-1);
+
+  offset=0;
+  memset(ll_func, 0, sizeof(ll_func));
+  if (strlen(func) >= sizeof(ll_func))
+    offset=strlen(func)-sizeof(ll_func)+1;
+  strncpy(ll_func, func+offset, sizeof(ll_func)-1);
+
+  printf ("%-5s %-30s %-40s| ", ll_str, ll_file, ll_func);
   return 1;
 }