move embedded tutorials out of protocol tree

tutorials/esp32/uart-bridge/main/cli.c

@@ -0,0 +1,94 @@
+#include "main.h"
+
+static void cli_wifi(const char *ssid, const char *pass) {
+  if (wifi_init(ssid, pass)) {
+    mg_file_printf(&mg_fs_posix, WIFI_FILE, "{%m:%m,%m:%m}\n", mg_print_esc, 0,
+                   "ssid", mg_print_esc, 0, ssid, mg_print_esc, 0, "pass",
+                   mg_print_esc, 0, pass);
+    MG_INFO(("Reboot now"));
+  }
+}
+
+static void cli_ls(void) {
+  DIR *dirp = opendir(FS_ROOT);
+  struct dirent *dp;
+  if (dirp == NULL) {
+    MG_ERROR(("Cannot open FS: %d", errno));
+  } else {
+    while ((dp = readdir(dirp)) != NULL) {
+      /* Do not show current and parent dirs */
+      if (strcmp((const char *) dp->d_name, ".") == 0 ||
+          strcmp((const char *) dp->d_name, "..") == 0) {
+        continue;
+      } else {
+        printf("%s\n", dp->d_name);
+      }
+    }
+    closedir(dirp);
+  }
+}
+
+static void cli_cat(const char *fname) {
+  char path[MG_PATH_MAX];
+  snprintf(path, sizeof(path), "%s/%s", FS_ROOT, fname);
+  FILE *fp = fopen(path, "r");
+  if (fp != NULL) {
+    int ch;
+    while ((ch = fgetc(fp)) != EOF) putchar(ch);
+    fclose(fp);
+  }
+}
+
+static void cli_rm(const char *fname) {
+  char path[100];
+  snprintf(path, sizeof(path), "%s/%s", FS_ROOT, fname);
+  remove(path);
+}
+
+static struct mg_iobuf in;
+
+void cli(uint8_t input_byte) {
+  if (input_byte == 0 || input_byte == 0xff) return;
+  if (in.len >= 128) in.len = 0;
+  mg_iobuf_add(&in, in.len, &input_byte, sizeof(input_byte));
+
+  if (input_byte == '\n') {
+    const char *arrow = "---";
+    char buf0[10], buf1[50], buf2[250];
+
+    in.buf[in.len] = '\0';
+    buf0[0] = buf1[0] = buf2[0] = '\0';
+    sscanf((char *) in.buf, "%9s %49s %249[^\r\n]", buf0, buf1, buf2);
+
+    printf("%s CLI command: '%s'\n", arrow, buf0);
+    if (strcmp(buf0, "reboot") == 0) {
+      esp_restart();
+    } else if (strcmp(buf0, "ls") == 0) {
+      cli_ls();
+    } else if (strcmp(buf0, "cat") == 0) {
+      cli_cat(buf1);
+    } else if (strcmp(buf0, "rm") == 0) {
+      cli_rm(buf1);
+    } else if (strcmp(buf0, "reboot") == 0) {
+      esp_restart();
+    } else if (strcmp(buf0, "ll") == 0) {
+      mg_log_set(atoi(buf1));
+    } else if (strcmp(buf0, "wifi") == 0) {
+      cli_wifi(buf1, buf2);
+    } else {
+      printf("%s %s\n", arrow, "Unknown command. Usage:");
+      printf("%s %s\n", arrow, "  set NAME VALUE");
+      printf("%s %s\n", arrow, "  rm FILENAME");
+      printf("%s %s\n", arrow, "  cat FILENAME");
+      printf("%s %s\n", arrow, "  ls");
+      printf("%s %s\n", arrow, "  reboot");
+      printf("%s %s\n", arrow, "  wifi WIFI_NET WIFI_PASS");
+    }
+    printf("%s %s\n", arrow, "CLI output end");
+    in.len = 0;
+  }
+}
+
+void cli_init(void) {
+  mg_iobuf_init(&in, 0, 32);
+}