exosphere: add new ConfigItem which allows the caller to retrieve the git commit hash. (#493)

exosphere/src/configitem.c

@@ -260,6 +260,10 @@ uint32_t configitem_get(bool privileged, ConfigItem item, uint64_t *p_outvalue)
             /* UNOFFICIAL: The fact that we are executing means we aren't in the process of shutting down. */
             *p_outvalue = 0;
             break;
+        case CONFIGITEM_EXOSPHERE_VERHASH:
+            /* UNOFFICIAL: Gets information about the current exosphere git commit hash. */
+            *p_outvalue = ATMOSPHERE_RELEASE_VERSION_HASH;
+            break;
         default:
             result = 2;
             break;

exosphere/src/configitem.h

@@ -43,6 +43,7 @@ typedef enum {
     CONFIGITEM_EXOSPHERE_VERSION = 65000,
     CONFIGITEM_NEEDS_REBOOT = 65001,
     CONFIGITEM_NEEDS_SHUTDOWN = 65002,
+    CONFIGITEM_EXOSPHERE_VERHASH = 65003,
 } ConfigItem;
 
 #define REBOOT_KIND_NO_REBOOT     0