[shell] move common shell commands to common library

This is the first PR of the effort toadd shell as an optional component
for all devices.

* Move wifi, ble and device config command to common library
* The `wifi` commands has been simplified with less modes.
  Platform-specific commands have been removed.
* The `btp` command is renamed to `ble` with all the not-implemented
  commands removed.
* The `device config` command is renamed to `config` with unused configs
  removed.
* Fix shell formatting on ESP32.

config/esp32/components/chip/CMakeLists.txt

@@ -72,7 +72,7 @@ if (NOT CONFIG_USE_MINIMAL_MDNS)
 endif()
 
 if (CONFIG_ENABLE_CHIP_SHELL)
-    chip_gn_arg_append("chip_build_shell_lib"                   "true")
+    chip_gn_arg_append("chip_build_libshell"                "true")
 endif()
 
 

config/nrfconnect/chip-gn/BUILD.gn

@@ -20,7 +20,6 @@ import("${chip_root}/build/chip/tests.gni")
 assert(current_os == "zephyr")
 
 declare_args() {
-  chip_build_libshell = false
   chip_build_pw_rpc_lib = false
   chip_build_zephyr_shell = false
 }
@@ -32,10 +31,6 @@ group("nrfconnect") {
     deps += [ "${chip_root}/src:tests" ]
   }
 
-  if (chip_build_libshell) {
-    deps += [ "${chip_root}/src/lib/shell" ]
-  }
-
   if (chip_build_zephyr_shell) {
     deps += [ "${chip_root}/src/platform/nrfconnect/shell:chip-zephyr-shell" ]
   }

examples/lock-app/esp32/.gitignore

@@ -0,0 +1,3 @@
+/build/
+/sdkconfig
+/sdkconfig.old

examples/shell/esp32/main/main.cpp

@@ -25,12 +25,44 @@
 #include "linenoise/linenoise.h"
 #include "nvs_flash.h"
 #include "support/CHIPMem.h"
+#include "support/ErrorStr.h"
 
 #include <ChipShellCollection.h>
-#include <lib/shell/shell_core.h>
+#include <lib/shell/Shell.h>
 #include <lib/support/CHIPPlatformMemory.h>
 #include <platform/CHIPDeviceLayer.h>
 
+class ShellLineArgs
+{
+public:
+    ShellLineArgs(char * line, TaskHandle_t source_task) : m_line(line), m_source_task(source_task) {}
+    char * GetLine() { return m_line; }
+    void WaitShellProcessDone() { ulTaskNotifyTake(pdTRUE, portMAX_DELAY); }
+    void NotifyShellProcessDone() { xTaskNotifyGive(m_source_task); }
+
+private:
+    char * m_line;
+    TaskHandle_t m_source_task;
+};
+
+static void process_shell_line(intptr_t context)
+{
+    ShellLineArgs * shellArgs = reinterpret_cast<ShellLineArgs *>(context);
+    int ret;
+    esp_console_run(shellArgs->GetLine(), &ret);
+    if (ret)
+    {
+        printf("Error: %s\r\n", chip::ErrorStr(ret));
+    }
+    else
+    {
+        printf("Done\r\n");
+    }
+
+    linenoiseFree(shellArgs->GetLine());
+    shellArgs->NotifyShellProcessDone();
+}
+
 static void chip_shell_task(void * args)
 {
     chip::Platform::MemoryInit();
@@ -43,34 +75,20 @@ static void chip_shell_task(void * args)
     {
         const char * prompt = LOG_COLOR_I "> " LOG_RESET_COLOR;
         char * line         = linenoise(prompt);
+        printf("\r\n");
         if (line == NULL || strlen(line) == 0)
         {
             continue;
         }
+        ShellLineArgs shellArgs(line, xTaskGetCurrentTaskHandle());
         linenoiseHistoryAdd(line);
-        int ret;
-        esp_console_run(line, &ret);
-        if (ret)
-        {
-            char errorStr[160];
-            bool errorStrFound = chip::FormatCHIPError(errorStr, sizeof(errorStr), ret);
-            if (!errorStrFound)
-            {
-                errorStr[0] = 0;
-            }
-            printf("Error: %s\n", errorStr);
-        }
-        else
-        {
-            printf("Done\n");
-        }
-
-        linenoiseFree(line);
+        chip::DeviceLayer::PlatformMgr().ScheduleWork(process_shell_line, reinterpret_cast<intptr_t>(&shellArgs));
+        shellArgs.WaitShellProcessDone();
     }
 }
 
 extern "C" void app_main(void)
 {
     ESP_ERROR_CHECK(nvs_flash_init());
-    xTaskCreate(&chip_shell_task, "chip_shell", 8192, NULL, 5, NULL);
+    xTaskCreate(&chip_shell_task, "chip_shell", 4096, NULL, 5, NULL);
 }

examples/shell/nrfconnect/CMakeLists.txt

@@ -35,13 +35,10 @@ target_include_directories(app PRIVATE
 
 target_sources(app PRIVATE
     ${APP_ROOT}/shell_common/globals.cpp
-    ${APP_ROOT}/shell_common/cmd_base64.cpp
-    ${APP_ROOT}/shell_common/cmd_device.cpp
     ${APP_ROOT}/shell_common/cmd_misc.cpp
     ${APP_ROOT}/shell_common/cmd_otcli.cpp
     ${APP_ROOT}/shell_common/cmd_ping.cpp
     ${APP_ROOT}/shell_common/cmd_send.cpp     
-    ${APP_ROOT}/shell_common/cmd_btp.cpp
     ${APP_ROOT}/standalone/main.cpp
 )
 

examples/shell/shell_common/BUILD.gn

@@ -32,9 +32,6 @@ config("shell_common_config") {
 
 static_library("shell_common") {
   sources = [
-    "cmd_base64.cpp",
-    "cmd_btp.cpp",
-    "cmd_device.cpp",
     "cmd_misc.cpp",
     "cmd_otcli.cpp",
     "cmd_ping.cpp",
@@ -43,14 +40,10 @@ static_library("shell_common") {
   ]
 
   public_deps = [
-    "${chip_root}/src/lib",
-    "${chip_root}/src/lib/core",
     "${chip_root}/src/lib/shell",
     "${chip_root}/src/lib/support",
     "${chip_root}/src/platform",
     "${chip_root}/src/protocols",
-    "${chip_root}/src/setup_payload",
-    "${chip_root}/src/system",
   ]
 
   if (chip_enable_openthread &&