1 files changed, 95 insertions, 0 deletions
diff --git a/lib/esp-idf-lua/examples/vfs/main/main.c b/lib/esp-idf-lua/examples/vfs/main/main.c
new file mode 100644
index 00000000..e9267ea5
--- /dev/null
+++ b/lib/esp-idf-lua/examples/vfs/main/main.c
@@ -0,0 +1,95 @@
+#include <stdio.h>
+#include <inttypes.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <string.h>
+#include <stdbool.h>
+#include <lua/lua.h>
+#include <lua/lauxlib.h>
+#include <lua/lualib.h>
+#include <esp_spiffs.h>
+#include <esp_err.h>
+#include <esp_log.h>
+
+static const char *TAG = "LUA-VFS";
+
+static void report(lua_State *L, int status)
+{
+    if (status == LUA_OK) return;
+
+    const char *msg = lua_tostring(L, -1);
+    printf("%s\n", msg);
+    lua_pop(L, 1);
+}
+
+static void halt()
+{
+    ESP_LOGE(TAG, "System halted");
+    while (1)
+        vTaskDelay(1000);
+}
+
+static void mount_fs()
+{
+    esp_vfs_spiffs_conf_t conf = {
+      .base_path = "/lua",
+      .partition_label = NULL,
+      .max_files = 5,
+      .format_if_mount_failed = false
+    };
+
+    esp_err_t ret = esp_vfs_spiffs_register(&conf);
+    switch (ret)
+    {
+        case ESP_OK:
+            break;
+        case ESP_FAIL:
+            ESP_LOGE(TAG, "Failed to mount or format filesystem");
+            halt();
+            break;
+        case ESP_ERR_NOT_FOUND:
+            ESP_LOGE(TAG, "Failed to find SPIFFS partition");
+            halt();
+            break;
+        default:
+            ESP_LOGE(TAG, "Failed to initialize SPIFFS (%s)", esp_err_to_name(ret));
+            halt();
+    }
+    size_t total = 0, used = 0;
+    ESP_ERROR_CHECK(esp_spiffs_info(NULL, &total, &used));
+    ESP_LOGI(TAG, "Partition size: total: %d, used: %d", total, used);
+}
+
+
+void test(void *arg)
+{
+    mount_fs();
+
+    lua_State *L = luaL_newstate();
+    ESP_ERROR_CHECK(L ? ESP_OK : ESP_FAIL);
+
+    luaL_openlibs(L);
+
+    int r = luaL_loadfilex(L, "/lua/main.lua", NULL);
+    if (r != LUA_OK)
+        printf("Failed to execute /lua/main.lua\n");
+    else
+        r = lua_pcall(L, 0, LUA_MULTRET, 0);
+
+    report(L, r);
+    lua_close(L);
+
+    printf("State closed, heap: %" PRIu32 "\n", xPortGetFreeHeapSize());
+
+    while (1)
+    {
+        printf(".");
+        fflush(stdout);
+        vTaskDelay(100);
+    }
+}
+
+void app_main()
+{
+    xTaskCreate(test, "test", 0x10000, NULL, 5, NULL);
+}