add fs commands (work around lack of always_link)

Author: summivox

firmware/main/app_main.cpp

@@ -16,6 +16,7 @@
 #include "fmt/chrono.h"
 #include "fmt/core.h"
 #include "freertos/FreeRTOS.h"
+#include "linenoise/linenoise.h"
 
 #include "esp_freertos_hooks.h"  // depends on FreeRTOS.h
 
@@ -62,6 +63,7 @@ esp_console_repl_t* InitializeConsole() {
   OK_OR_RETURN(esp_console_new_repl_uart(&repl_uart_config, &repl_config, &repl), nullptr);
   register_system_common();
   OK_OR_RETURN(ConsoleCommandRegistry::GetInstance()->Register(), nullptr);
+  linenoiseSetMultiLine(0);
   return repl;
 }
 

firmware/main/io/fs_commands.inl.cpp

@@ -0,0 +1,50 @@
+// Copyright 2022 summivox. All rights reserved.
+// Authors: [email protected]
+
+#include <map>
+
+#include "common/console_command.hpp"
+#include "io/fs_utils.hpp"
+
+namespace {
+const std::map<uint8_t, std::string> kDirentTypeName{
+    {DT_REG, "DT_REG"},
+    {DT_DIR, "DT_DIR"},
+    {DT_UNKNOWN, "DT_UNKNOWN"},
+};
+}  // namespace
+
+DEFINE_CONSOLE_COMMAND(
+    ls,
+    "list all directories and files under given path",
+    /*hint*/ nullptr,
+    { arg_str* path = arg_str1(nullptr, nullptr, "<path>", "path to list"); },
+    /*num_end*/ 1) {
+  CHECK(path->count == 1);
+
+  std::string dir = path->sval[0];
+
+  fputs("\n", stdout);
+  for (dirent* p : io::DirIter(dir.c_str())) {
+    printf("name='%s' type=%d (%s)", p->d_name, p->d_type, kDirentTypeName.at(p->d_type).c_str());
+    // if (p->d_type == DT_REG) {
+    struct stat s {};
+    stat((dir + "/" + p->d_name).c_str(), &s);
+    TimeParts mt = ToParts(s.st_mtim);
+    printf(" size=%d", (int)s.st_size);
+    // st_ctim is not populated, and we don't have st_birthtim / st_birthtimespec
+    printf(
+        " mtim=%04d-%02d-%02d_%02d:%02d:%02d",
+        mt.tm_year + 1900,
+        mt.tm_mon + 1,
+        mt.tm_mday,
+        mt.tm_hour,
+        mt.tm_min,
+        mt.tm_sec);
+    // }
+    fputs("\n", stdout);
+  }
+  fputs("\n", stdout);
+
+  return 0;
+}

firmware/main/io/fs_utils.cpp

@@ -135,3 +135,5 @@ int64_t GetFreeSpaceBytes(const char* fatfs_root) {
 }
 
 }  // namespace io
+
+#include "io/fs_commands.inl.cpp"