Merge 'Delete obsolete app launchers'

See merge request !504

epicardium/main.c

@@ -34,6 +34,8 @@ int main(void)
 
 	load_config();
 
+	migration_delete_app_launchers();
+
 	//LED feedback in case of dead display
 	epic_leds_set(11, 0, 0, 1);
 	epic_leds_set(12, 0, 0, 1);

epicardium/os/config.c

 #include "os/core.h"
 #include "os/config.h"
-#include "fs/filesystem.h"
 #include "epicardium.h"
 
 #include <assert.h>

epicardium/user_core/meson.build

@@ -2,4 +2,5 @@ user_core_sources = files(
   'dispatcher.c',
   'interrupts.c',
   'lifecycle.c',
+  'migration.c',
 )

epicardium/user_core/migration.c

+#include "epicardium.h"
+#include "os/core.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void migration_delete_app_launchers(void)
+{
+	int fd = epic_file_opendir("/");
+
+	struct epic_stat entry;
+	for (;;) {
+		epic_file_readdir(fd, &entry);
+
+		if (entry.type == EPICSTAT_NONE) {
+			// End
+			break;
+		}
+
+		const char *dot = strrchr(entry.name, '.');
+		if (dot && !strcmp(dot, ".py")) {
+			const char launcher[] = "# Launcher script for ";
+			char launcher_buf[strlen(launcher)];
+
+			int fd = epic_file_open(entry.name, "r");
+
+			if (fd >= 0) {
+				int n = epic_file_read(
+					fd, launcher_buf, sizeof(launcher_buf)
+				);
+				epic_file_close(fd);
+
+				if (n == (int)sizeof(launcher_buf) &&
+				    !memcmp(launcher,
+					    launcher_buf,
+					    sizeof(launcher_buf))) {
+					LOG_INFO(
+						"migration",
+						"Delete old launcher %s",
+						entry.name
+					);
+					epic_file_unlink(entry.name);
+				}
+			}
+		}
+	}
+
+	epic_file_close(fd);
+}

epicardium/user_core/user_core.h

@@ -12,3 +12,6 @@ extern TaskHandle_t dispatcher_task_id;
 /* ---------- Lifecycle ---------------------------------------------------- */
 void vLifecycleTask(void *pvParameters);
 void return_to_menu(void);
+
+/* ---------- Migration ---------------------------------------------------- */
+void migration_delete_app_launchers(void);