use history_number in json output

Signed-off-by: Nishant Bansal <nishant.bansal.282003@gmail.com>

Author: NishantBansal2003

vector/v.info/local_proto.h

@@ -27,5 +27,5 @@ void print_shell(struct Map_info *, const char *, enum OutputFormat,
                  JSON_Object *);
 void parse_history_line(const char *, char *, char *, char *, char *, char *,
                         char *, char *);
-void add_record_to_json(char *, char *, char *, char *, JSON_Array *);
+void add_record_to_json(char *, char *, char *, char *, JSON_Array *, int);
 void print_history(struct Map_info *, enum OutputFormat);

vector/v.info/print.c

@@ -810,7 +810,8 @@ void parse_history_line(const char *buf, char *command, char *gisdbase,
 
  */
 void add_record_to_json(char *command, char *user, char *date,
-                        char *mapset_path, JSON_Array *record_array)
+                        char *mapset_path, JSON_Array *record_array,
+                        int history_number)
 {
 
     JSON_Value *info_value = json_value_init_object();
@@ -819,6 +820,7 @@ void add_record_to_json(char *command, char *user, char *date,
     }
     JSON_Object *info_object = json_object(info_value);
 
+    json_object_set_number(info_object, "history_number", history_number);
     json_object_set_string(info_object, "command", command);
     json_object_set_string(info_object, "mapset_path", mapset_path);
     json_object_set_string(info_object, "user", user);
@@ -834,6 +836,8 @@ void add_record_to_json(char *command, char *user, char *date,
  */
 void print_history(struct Map_info *Map, enum OutputFormat format)
 {
+    int history_number = 0;
+
     char buf[STR_LEN] = {0};
     char command[STR_LEN] = {0}, gisdbase[STR_LEN] = {0};
     char location[STR_LEN] = {0}, mapset[STR_LEN] = {0};
@@ -872,8 +876,11 @@ void print_history(struct Map_info *Map, enum OutputFormat format)
                                date, mapset_path);
             if (command[0] != '\0' && mapset_path[0] != '\0' &&
                 user[0] != '\0' && date[0] != '\0') {
+                // Increment history counter
+                history_number++;
+
                 add_record_to_json(command, user, date, mapset_path,
-                                   record_array);
+                                   record_array, history_number);
             }
             break;
         }

vector/v.info/testsuite/test_vinfo.py

@@ -295,9 +295,11 @@ def test_json_histroy(self):
         expected_json = {
             "records": [
                 {
+                    "history_number": 1,
                     "command": 'v.random output="test_vinfo_with_hist" npoints=5 layer="-1" zmin=0 zmax=100 column_type="double precision"',
                 },
                 {
+                    "history_number": 2,
                     "command": 'v.mkgrid map="test_vinfo_with_hist" grid=10,10 type="point"',
                 },
             ]