src: Switch log file to append mode

Append to the end of the log file instead of overriding it altogether.

src/main.cpp

@@ -6453,7 +6453,7 @@ static int __pyx_f_4main_start(char const *__pyx_v_path_to_scan, char const *__p
  *     node = consume active_node
  * 
  *     realpath(log_path, resolved_log_path)             # <<<<<<<<<<<<<<
- *     result = fopen(resolved_log_path, 'w')
+ *     result = fopen(resolved_log_path, 'a')
  *     if result is NULL:
  */
   (void)(realpath(__pyx_v_log_path, __pyx_v_resolved_log_path));
@@ -6461,15 +6461,15 @@ static int __pyx_f_4main_start(char const *__pyx_v_path_to_scan, char const *__p
   /* "main.pyx":294
  * 
  *     realpath(log_path, resolved_log_path)
- *     result = fopen(resolved_log_path, 'w')             # <<<<<<<<<<<<<<
+ *     result = fopen(resolved_log_path, 'a')             # <<<<<<<<<<<<<<
  *     if result is NULL:
  *         fprintf(stderr, 'Error creating the log file.\n')
  */
-  __pyx_v_result = fopen(__pyx_v_resolved_log_path, ((char const *)"w"));
+  __pyx_v_result = fopen(__pyx_v_resolved_log_path, ((char const *)"a"));
 
   /* "main.pyx":295
  *     realpath(log_path, resolved_log_path)
- *     result = fopen(resolved_log_path, 'w')
+ *     result = fopen(resolved_log_path, 'a')
  *     if result is NULL:             # <<<<<<<<<<<<<<
  *         fprintf(stderr, 'Error creating the log file.\n')
  *         fflush(stderr)
@@ -6478,7 +6478,7 @@ static int __pyx_f_4main_start(char const *__pyx_v_path_to_scan, char const *__p
   if (__pyx_t_8) {
 
     /* "main.pyx":296
- *     result = fopen(resolved_log_path, 'w')
+ *     result = fopen(resolved_log_path, 'a')
  *     if result is NULL:
  *         fprintf(stderr, 'Error creating the log file.\n')             # <<<<<<<<<<<<<<
  *         fflush(stderr)
@@ -6507,7 +6507,7 @@ static int __pyx_f_4main_start(char const *__pyx_v_path_to_scan, char const *__p
 
     /* "main.pyx":295
  *     realpath(log_path, resolved_log_path)
- *     result = fopen(resolved_log_path, 'w')
+ *     result = fopen(resolved_log_path, 'a')
  *     if result is NULL:             # <<<<<<<<<<<<<<
  *         fprintf(stderr, 'Error creating the log file.\n')
  *         fflush(stderr)

src/main.pyx

@@ -291,7 +291,7 @@ cdef int start(const char *path_to_scan, const char *log_path) nogil:
     node = consume active_node
 
     realpath(log_path, resolved_log_path)
-    result = fopen(resolved_log_path, 'w')
+    result = fopen(resolved_log_path, 'a')
     if result is NULL:
         fprintf(stderr, 'Error creating the log file.\n')
         fflush(stderr)