common/debug.c

   1 #include "git-compat-util.h"
   2 #include "systeminfo.h"
   3 #include "debug.h"
   4
   5 static FILE *debug_git_fp = NULL;
   6
   7 #ifdef _WIN32
   8 static void reset_inherit_flag(FILE *file)
   9 {
  10         HANDLE handle;
  11
  12         if(!file)
  13                 return;
  14
  15         handle = (HANDLE)_get_osfhandle(_fileno(file));
  16         SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0);
  17 }
  18 #endif
  19
  20 void _debug_git(char * format, ...)
  21 {
  22         if (!debug_git_fp) {
  23 #ifdef _WIN32
  24                 WCHAR path[MAX_PATH];
  25                 GetTempPathW(MAX_PATH, path);
  26                 wcsncat(path, L"git_shell_ext_debug.txt", MAX_PATH);
  27                 debug_git_fp = _wfopen(path, L"a+");
  28                 reset_inherit_flag(debug_git_fp);
  29 #else
  30                 debug_git_fp = fopen("/tmp/git-cheetah-plugin.log", "a+");
  31 #endif
  32         }
  33
  34         /* Check again in case the above debug_git_set_file failed. */
  35         if (debug_git_fp)
  36         {
  37                 va_list params;
  38                 char *buffer;
  39                 int length = 0;
  40
  41                 va_start(params, format);
  42                 length = vsnprintf(NULL, 0, format, params);
  43                 if (length < 0)
  44                         return;
  45
  46                 buffer = xmalloc(length + 1);
  47                 vsnprintf(buffer, length + 1, format, params);
  48                 va_end(params);
  49                 fwrite(buffer, sizeof(char), length, debug_git_fp);
  50                 fputc('\n', debug_git_fp);
  51                 fflush(debug_git_fp);
  52                 free(buffer);
  53         }
  54 }
  55
  56 void _debug_git_mbox(char *format, ...)
  57 {
  58         va_list params;
  59         char buffer[1024];
  60
  61         va_start(params, format);
  62         vsnprintf(buffer, sizeof(buffer), format, params);
  63         va_end(params);
  64         message_box(buffer);
  65 }