Fix setting Status parameter value (#103)

Co-authored-by: Madelen Andersson <madelen.andersson@axis.com>
Co-authored-by: madelen-at-work <madelen-at-work@users.noreply.github.com>

README.md

@@ -275,10 +275,10 @@ Following are the possible values of `Status`:
  0 RUNNING                    The application is started and dockerd is running.
  1 TLS CERT MISSING           Use TLS is selected but there but certificates are missing on the device.
                               The application is running but dockerd is stopped.
-                              Upload certificates and restart the application.
+                              Upload certificates and restart the application or de-select Use TLS.
  2 NO SOCKET                  Neither TCP Socket or IPC Socket are selected.
-                              The application has stopped.
-                              Select one or both sockets and start the application.
+                              The application is running but dockerd is stopped.
+                              Select one or both sockets.
  3 NO SD CARD                 Use SD Card is selected but no SD Card is mounted in the device.
                               The application is running but dockerd is stopped.
                               Insert and mount a SD Card.
@@ -289,7 +289,12 @@ Following are the possible values of `Status`:
                               permissions to use it.
                               The application is running but dockerd is stopped.
                               Make sure no directories with the wrong user permissions are left on the
-                              SD Card.
+                              SD Card. Then restart the application.
+ 6 SD CARD MIGRATION FAILED   Use SD Card is selected but migrating data from the old data root location to the
+                              new one has failed.
+                              The application is running but dockerd is stopped.
+                              Manually back up and remove either the old data root folder, or the new
+                              data root folder, from the SD card. Then restart the application.
 ```
 
 ## Building the Docker Compose ACAP

app/dockerdwrapperwithcompose.c

@@ -47,6 +47,7 @@ typedef enum {
     STATUS_NO_SD_CARD,
     STATUS_SD_CARD_WRONG_FS,
     STATUS_SD_CARD_WRONG_PERMISSION,
+    STATUS_SD_CARD_MIGRATION_FAILED,
     STATUS_CODE_COUNT,
 } status_code_t;
 
@@ -56,7 +57,8 @@ static const char* const status_code_strs[STATUS_CODE_COUNT] = {"-1 NOT STARTED"
                                                                 "2 NO SOCKET",
                                                                 "3 NO SD CARD",
                                                                 "4 SD CARD WRONG FS",
-                                                                "5 SD CARD WRONG PERMISSION"};
+                                                                "5 SD CARD WRONG PERMISSION",
+                                                                "6 SD CARD MIGRATION FAILED"};
 
 struct settings {
     char* data_root;
@@ -351,6 +353,7 @@ static bool setup_sdcard(AXParameter* param_handle, const char* data_root) {
 
     if (!migrate_from_old_sdcard_setup(data_root)) {
         log_error("Failed to migrate data from old data-root");
+        set_status_parameter(param_handle, STATUS_SD_CARD_MIGRATION_FAILED);
         return false;
     }
 
@@ -381,6 +384,7 @@ static char* prepare_data_root(AXParameter* param_handle, const char* sd_card_ar
     if (is_parameter_yes(param_handle, PARAM_SD_CARD_SUPPORT)) {
         if (!sd_card_area) {
             log_error("SD card was requested, but no SD card is available at the moment.");
+            set_status_parameter(param_handle, STATUS_NO_SD_CARD);
             return NULL;
         }
         char* data_root = g_strdup_printf("%s/data", sd_card_area);