fsmonitor-settings.c

   1 #include "cache.h"
   2 #include "config.h"
   3 #include "repository.h"
   4 #include "fsmonitor-settings.h"
   5
   6 /*
   7  * We keep this structure defintion private and have getters
   8  * for all fields so that we can lazy load it as needed.
   9  */
  10 struct fsmonitor_settings {
  11         enum fsmonitor_mode mode;
  12         char *hook_path;
  13 };
  14
  15 static void lookup_fsmonitor_settings(struct repository *r)
  16 {
  17         struct fsmonitor_settings *s;
  18         const char *const_str;
  19         int bool_value;
  20
  21         if (r->settings.fsmonitor)
  22                 return;
  23
  24         CALLOC_ARRAY(s, 1);
  25         s->mode = FSMONITOR_MODE_DISABLED;
  26
  27         r->settings.fsmonitor = s;
  28
  29         /*
  30          * Overload the existing "core.fsmonitor" config setting (which
  31          * has historically been either unset or a hook pathname) to
  32          * now allow a boolean value to enable the builtin FSMonitor
  33          * or to turn everything off.  (This does imply that you can't
  34          * use a hook script named "true" or "false", but that's OK.)
  35          */
  36         switch (repo_config_get_maybe_bool(r, "core.fsmonitor", &bool_value)) {
  37
  38         case 0: /* config value was set to <bool> */
  39                 if (bool_value)
  40                         fsm_settings__set_ipc(r);
  41                 return;
  42
  43         case 1: /* config value was unset */
  44                 const_str = getenv("GIT_TEST_FSMONITOR");
  45                 break;
  46
  47         case -1: /* config value set to an arbitrary string */
  48                 if (repo_config_get_pathname(r, "core.fsmonitor", &const_str))
  49                         return; /* should not happen */
  50                 break;
  51
  52         default: /* should not happen */
  53                 return;
  54         }
  55
  56         if (!const_str || !*const_str)
  57                 return;
  58
  59         fsm_settings__set_hook(r, const_str);
  60 }
  61
  62 enum fsmonitor_mode fsm_settings__get_mode(struct repository *r)
  63 {
  64         if (!r)
  65                 r = the_repository;
  66
  67         lookup_fsmonitor_settings(r);
  68
  69         return r->settings.fsmonitor->mode;
  70 }
  71
  72 const char *fsm_settings__get_hook_path(struct repository *r)
  73 {
  74         if (!r)
  75                 r = the_repository;
  76
  77         lookup_fsmonitor_settings(r);
  78
  79         return r->settings.fsmonitor->hook_path;
  80 }
  81
  82 void fsm_settings__set_ipc(struct repository *r)
  83 {
  84         if (!r)
  85                 r = the_repository;
  86
  87         lookup_fsmonitor_settings(r);
  88
  89         r->settings.fsmonitor->mode = FSMONITOR_MODE_IPC;
  90         FREE_AND_NULL(r->settings.fsmonitor->hook_path);
  91 }
  92
  93 void fsm_settings__set_hook(struct repository *r, const char *path)
  94 {
  95         if (!r)
  96                 r = the_repository;
  97
  98         lookup_fsmonitor_settings(r);
  99
 100         r->settings.fsmonitor->mode = FSMONITOR_MODE_HOOK;
 101         FREE_AND_NULL(r->settings.fsmonitor->hook_path);
 102         r->settings.fsmonitor->hook_path = strdup(path);
 103 }
 104
 105 void fsm_settings__set_disabled(struct repository *r)
 106 {
 107         if (!r)
 108                 r = the_repository;
 109
 110         lookup_fsmonitor_settings(r);
 111
 112         r->settings.fsmonitor->mode = FSMONITOR_MODE_DISABLED;
 113         FREE_AND_NULL(r->settings.fsmonitor->hook_path);
 114 }