Add littlefs file system and update Sys.IO.FileSystem and stream

.devcontainer/All/Dockerfile.All

@@ -1 +1 @@
-FROM ghcr.io/nanoframework/dev-container-all:v2.47
+FROM ghcr.io/nanoframework/dev-container-all:v2.48

.devcontainer/All/Dockerfile.All.SRC

@@ -77,10 +77,10 @@ RUN git clone --branch nf-build https://github.com/nanoframework/STM32CubeL4.git
 RUN git clone --branch v6.4.0_rel --recursive https://github.com/eclipse-threadx/threadx.git --depth 1 ./sources/AzureRTOS \
     && git clone --branch v6.3.0_rel --recursive https://github.com/eclipse-threadx/netxduo.git --depth 1 ./sources/NetxDuo
 
-# Clone dependent repos (mbedtls, fatfs and spiffs)
+# Clone dependent repos (mbedtls, fatfs and littlefs)
 RUN git clone --branch mbedtls-2.28.5 https://github.com/ARMmbed/mbedtls.git --depth 1 ./sources/mbedtls \
     && git clone --branch R0.15 https://github.com/abbrev/fatfs.git --depth 1 ./sources/fatfs \
-    && git clone --branch nf-build https://github.com/nanoframework/spiffs.git --depth 1 ./sources/spiffs
+    && git clone --branch v2.9.3 https://github.com/littlefs-project/littlefs --depth 1 ./sources/littlefs
 
 # Clone FreeRTOS and what is needed for ESP32
 RUN git clone --branch V10.4.1-kernel-only https://github.com/FreeRTOS/FreeRTOS-Kernel.git --depth 1 ./sources/FreeRTOS \

.devcontainer/All/scripts/git-pull-repos.sh

@@ -24,8 +24,8 @@ cd /sources/CMSIS_5
 git pull origin 5.5.1
 cd /sources/lwip
 git pull origin STABLE-2_1_3_RELEASE
-cd /sources/spiffs
-git pull origin nf-build
+cd /sources/littlefs
+git pull origin v2.9.3
 cd /sources/SimpleLinkCC32
 git pull origin 4.10.00.07
 cd /sources/SimpleLinkCC13

.devcontainer/AzureRTOS/Dockerfile.AzureRTOS

@@ -1 +1 @@
-FROM ghcr.io/nanoframework/dev-container-azure-rtos:v1.26
+FROM ghcr.io/nanoframework/dev-container-azure-rtos:v1.27

.devcontainer/AzureRTOS/Dockerfile.AzureRTOS.SRC

@@ -66,10 +66,10 @@ RUN git clone --branch nf-build https://github.com/nanoframework/STM32CubeL4.git
 RUN git clone --branch v6.4.0_rel --recursive https://github.com/eclipse-threadx/threadx.git --depth 1 ./sources/AzureRTOS \
     && git clone --branch v6.4.0_rel --recursive https://github.com/eclipse-threadx/netxduo.git --depth 1 ./sources/NetxDuo
 
-# Clone dependent repos (mbedtls, fatfs and spiffs)
+# Clone dependent repos (mbedtls, fatfs and littlefs)
 RUN git clone --branch mbedtls-2.28.5 https://github.com/ARMmbed/mbedtls.git --depth 1 ./sources/mbedtls \
     && git clone --branch R0.15 https://github.com/abbrev/fatfs.git --depth 1 ./sources/fatfs \
-    && git clone --branch nf-build https://github.com/nanoframework/spiffs.git --depth 1 ./sources/spiffs
+    && git clone --branch v2.9.3 https://github.com/littlefs-project/littlefs --depth 1 ./sources/littlefs
 
 # set gcc location
 ARG TMP_GCC_PATH=/usr/local/bin/gcc

.devcontainer/ChibiOS/Dockerfile.ChibiOS

@@ -1 +1 @@
-FROM ghcr.io/nanoframework/dev-container-chibios:v1.27
+FROM ghcr.io/nanoframework/dev-container-chibios:v1.28

.devcontainer/ChibiOS/Dockerfile.ChibiOS.SRC

@@ -64,10 +64,10 @@ RUN git clone --branch nf-build https://github.com/nanoframework/STM32CubeL4.git
     && git clone --branch nf-build https://github.com/nanoframework/STM32CubeH7.git --depth 1 ./sources/STM32CubeH7 \
     && git clone --branch chibios-21.11.x https://github.com/ChibiOS/ChibiOS-Contrib.git --depth 1 ./sources/ChibiOs-Contrib
 
-# Clone dependent repos (mbedtls, fatfs and spiffs etc.)
+# Clone dependent repos (mbedtls, fatfs and littlefs etc.)
 RUN git clone --branch mbedtls-2.28.5 https://github.com/ARMmbed/mbedtls.git --depth 1 ./sources/mbedtls \
     && git clone --branch R0.15 https://github.com/abbrev/fatfs.git --depth 1 ./sources/fatfs \
-    && git clone --branch nf-build https://github.com/nanoframework/spiffs.git --depth 1 ./sources/spiffs \
+    && git clone --branch v2.9.3 https://github.com/littlefs-project/littlefs --depth 1 ./sources/littlefs \
     && git clone --branch STABLE-2_1_3_RELEASE https://github.com/lwip-tcpip/lwip.git --depth 1 ./sources/lwip
 
 # set gcc location

.devcontainer/TI/Dockerfile.TI

@@ -1 +1 @@
-FROM ghcr.io/nanoframework/dev-container-ti:v1.22
+FROM ghcr.io/nanoframework/dev-container-ti:v1.23

.devcontainer/TI/Dockerfile.TI.SRC

@@ -32,7 +32,6 @@ RUN  mkdir -p /tmp/dc-extracted/titools \
     && curl -o /tmp/dc-downloads/titools.zip $TI_TOOL_URL -L \
     && unzip -d /tmp/dc-extracted/titools /tmp/dc-downloads/titools.zip
 
-
 FROM ubuntu:latest AS devcontainer
 
 # Avoid warnings by switching to noninteractive

CMake/Modules/FindCHIBIOS_FATFS.cmake

@@ -27,7 +27,7 @@ foreach(SRC_FILE ${FATFS_SRCS})
 
     find_file(FATFS_SRC_FILE ${SRC_FILE}
         PATHS 
-            ${CMAKE_SOURCE_DIR}/targets/ChibiOS/_FatFS/
+            ${CMAKE_SOURCE_DIR}/targets/ChibiOS/_FatFs/
             ${fatfs_SOURCE_DIR}/source
 
         CMAKE_FIND_ROOT_PATH_BOTH
@@ -47,7 +47,7 @@ if(NF_FEATURE_HAS_USB_MSD)
     list(APPEND CHIBIOS_FATFS_SOURCES ${chibios-contrib_SOURCE_DIR}/os/various/fatfs_bindings/fatfs_diskio.c)
 else()
     # get it from the targets directory for fixing STM32F7 series Cache issues
-    list(APPEND CHIBIOS_FATFS_SOURCES ${CMAKE_SOURCE_DIR}/targets/ChibiOS/_FatFS/fatfs_diskio.c)
+    list(APPEND CHIBIOS_FATFS_SOURCES ${CMAKE_SOURCE_DIR}/targets/ChibiOS/_FatFs/fatfs_diskio.c)
 endif()
 
 include(FindPackageHandleStandardArgs)

CMake/Modules/FindLITTLEFS.cmake

@@ -0,0 +1,52 @@
+#
+# Copyright (c) .NET Foundation and Contributors
+# See LICENSE file in the project root for full license information.
+#
+
+include(FetchContent)
+FetchContent_GetProperties(littlefs)
+
+# List of the required include paths
+list(APPEND littlefs_INCLUDE_DIRS
+    ${littlefs_SOURCE_DIR}
+    ${CMAKE_SOURCE_DIR}/targets/${RTOS}/_littlefs)
+
+set(src_LITTLEFS
+
+    lfs.c
+    lfs_util.c
+
+    # HAL implementation specific to a platform
+    # has to be included at platform level
+    hal_littlefs.c
+
+    target_littlefs.c
+)
+
+foreach(SRC_FILE ${src_LITTLEFS})
+
+    set(LITTLEFS_SRC_FILE SRC_FILE -NOTFOUND)
+
+    find_file(LITTLEFS_SRC_FILE ${SRC_FILE}
+        PATHS
+
+            ${littlefs_SOURCE_DIR}
+            ${CMAKE_SOURCE_DIR}/targets/${RTOS}/_littlefs
+            ${TARGET_BASE_LOCATION}
+
+        CMAKE_FIND_ROOT_PATH_BOTH
+    )
+
+    if (BUILD_VERBOSE)
+        message("${SRC_FILE} >> ${LITTLEFS_SRC_FILE}")
+    endif()
+
+    list(APPEND littlefs_SOURCES ${LITTLEFS_SRC_FILE})
+
+endforeach()
+
+set_source_files_properties(${littlefs_SOURCE_DIR}/lfs.c PROPERTIES COMPILE_FLAGS -Wno-shadow)
+
+include(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(littlefs DEFAULT_MSG littlefs_INCLUDE_DIRS littlefs_SOURCES)

CMake/Modules/FindNF_CoreCLR.cmake

@@ -15,7 +15,7 @@ list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/PAL/Include)
 list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/CorLib)
 
 # CLR startup
-list(APPEND NF_CoreCLR_INCLUDE_DIRS  ${CMAKE_SOURCE_DIR}/src/CLR/Startup)
+list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/src/CLR/Startup)
 
 # others
 list(APPEND NF_CoreCLR_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/targets/${RTOS}/_include)
@@ -134,7 +134,7 @@ set(NF_CoreCLR_SRCS
     nf_rt_native_nanoFramework_Runtime_Native_Power.cpp
     nf_rt_native_nanoFramework_Runtime_Native_Rtc_stubs.cpp
     nf_rt_native_System_Environment.cpp
-    
+
     # Core stubs
     RPC_stub.cpp
 
@@ -151,9 +151,10 @@ set(NF_CoreCLR_SRCS
     nanoHAL_Time.cpp
     nanoHAL_Watchdog.c
     nanoHAL_SystemEvents.c
-    
+
     # PAL
     nanoPAL_Events.cpp
+    nanoPAL_FileSystem_stubs.cpp
     nanoPAL_NativeDouble.cpp
     nanoPAL_Network_stubs.cpp
     nanoPAL_PerformanceCounters_stubs.cpp
@@ -192,15 +193,15 @@ if(NF_FEATURE_SUPPORT_REFLECTION)
 
     # should we include binary serialization support?
     if(NF_FEATURE_BINARY_SERIALIZATION)
-        list(APPEND NF_CoreCLR_SRCS BinaryFormatter.cpp)    
+        list(APPEND NF_CoreCLR_SRCS BinaryFormatter.cpp)
     else()
         # binary serialization stubs because we're not supporting reflection
-        list(APPEND NF_CoreCLR_SRCS BinaryFormatter_stub.cpp)    
+        list(APPEND NF_CoreCLR_SRCS BinaryFormatter_stub.cpp)
     endif()
 
 else()
     # binary serialization stubs because we're not supporting reflection
-    list(APPEND NF_CoreCLR_SRCS BinaryFormatter_stub.cpp)    
+    list(APPEND NF_CoreCLR_SRCS BinaryFormatter_stub.cpp)
 endif()
 
 # include Collection support files depending on build option
@@ -209,7 +210,14 @@ if(API_nanoFramework.System.Collections)
     list(APPEND NF_CoreCLR_SRCS CLR_RT_HeapBlock_Stack.cpp)
 endif()
 
-# need a conditional include because of ESP32 building network as a library 
+# file system support?
+if(API_System.IO.FileSystem)
+    list(APPEND NF_CoreCLR_SRCS FileStream.cpp)
+else()
+    list(APPEND NF_CoreCLR_SRCS FileStream_stub.cpp)
+endif()
+
+# need a conditional include because of ESP32 building network as a library
 if(NOT USE_SECURITY_MBEDTLS_OPTION)
     list(APPEND NF_CoreCLR_SRCS base64.c)
 endif()
@@ -229,103 +237,100 @@ if(EXISTS ${BASE_PATH_FOR_CLASS_LIBRARIES_MODULES}/nanoFramework.Runtime.Native/
 endif()
 
 foreach(SRC_FILE ${NF_CoreCLR_SRCS})
-
     set(NF_CoreCLR_SRC_FILE SRC_FILE-NOTFOUND)
 
     find_file(NF_CoreCLR_SRC_FILE ${SRC_FILE}
-        PATHS 
-
-            # Core
-            ${CMAKE_SOURCE_DIR}/src/CLR/Core
-
-            # CoreLib
-            ${CMAKE_SOURCE_DIR}/src/CLR/CorLib
-
-            # CLR startup
-            ${CMAKE_SOURCE_DIR}/src/CLR/Startup
-
-            # Runtime.Native
-            ${CMAKE_SOURCE_DIR}/src/nanoFramework.Runtime.Native
-
-            # Core stubs
-            ${CMAKE_SOURCE_DIR}/src/CLR/Core/Hardware
-            ${CMAKE_SOURCE_DIR}/src/CLR/Core/InterruptHandler
-            ${CMAKE_SOURCE_DIR}/src/CLR/Core/NativeEventDispatcher
-            ${CMAKE_SOURCE_DIR}/src/CLR/Core/RPC
-            ${CMAKE_SOURCE_DIR}/src/CLR/Core/Serialization
-
-            # CLR stubs
-            ${CMAKE_SOURCE_DIR}/src/CLR/Debugger
-            ${CMAKE_SOURCE_DIR}/src/CLR/Diagnostics
-            ${CMAKE_SOURCE_DIR}/src/CLR/Messaging
-
-            # Helpers
-            ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/nanoprintf
-            ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/NanoRingBuffer
-            ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/Base64
-            ${CMAKE_SOURCE_DIR}/src/CLR/Diagnostics
-
-            # HAL
-            ${CMAKE_SOURCE_DIR}/src/HAL
-
-            # PAL
-            ${CMAKE_SOURCE_DIR}/src/PAL
-            ${CMAKE_SOURCE_DIR}/src/PAL/BlockStorage
-            ${CMAKE_SOURCE_DIR}/src/PAL/Double
-            ${CMAKE_SOURCE_DIR}/src/PAL/Events
-
-            # PAL stubs
-            ${CMAKE_SOURCE_DIR}/src/PAL/AsyncProcCall
-            ${CMAKE_SOURCE_DIR}/src/PAL/COM
-            ${CMAKE_SOURCE_DIR}/src/PAL/Profiler
-
-            # platform specific implementations
-            ${BASE_PATH_FOR_CLASS_LIBRARIES_MODULES}/nanoFramework.Runtime.Native
-
-            # target
-            ${TARGET_BASE_LOCATION}
+        PATHS
+
+        # Core
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core
+
+        # CoreLib
+        ${CMAKE_SOURCE_DIR}/src/CLR/CorLib
+
+        # CLR startup
+        ${CMAKE_SOURCE_DIR}/src/CLR/Startup
+
+        # Runtime.Native
+        ${CMAKE_SOURCE_DIR}/src/nanoFramework.Runtime.Native
+
+        # Core stubs
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core/Hardware
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core/InterruptHandler
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core/NativeEventDispatcher
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core/RPC
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core/Serialization
+        ${CMAKE_SOURCE_DIR}/src/CLR/Core/FileStream
+
+        # CLR stubs
+        ${CMAKE_SOURCE_DIR}/src/CLR/Debugger
+        ${CMAKE_SOURCE_DIR}/src/CLR/Diagnostics
+        ${CMAKE_SOURCE_DIR}/src/CLR/Messaging
+
+        # Helpers
+        ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/nanoprintf
+        ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/NanoRingBuffer
+        ${CMAKE_SOURCE_DIR}/src/CLR/Helpers/Base64
+        ${CMAKE_SOURCE_DIR}/src/CLR/Diagnostics
+
+        # HAL
+        ${CMAKE_SOURCE_DIR}/src/HAL
+
+        # PAL
+        ${CMAKE_SOURCE_DIR}/src/PAL
+        ${CMAKE_SOURCE_DIR}/src/PAL/BlockStorage
+        ${CMAKE_SOURCE_DIR}/src/PAL/Double
+        ${CMAKE_SOURCE_DIR}/src/PAL/Events
+        ${CMAKE_SOURCE_DIR}/src/PAL/FileSystem
+
+        # PAL stubs
+        ${CMAKE_SOURCE_DIR}/src/PAL/AsyncProcCall
+        ${CMAKE_SOURCE_DIR}/src/PAL/COM
+        ${CMAKE_SOURCE_DIR}/src/PAL/Profiler
+
+        # platform specific implementations
+        ${BASE_PATH_FOR_CLASS_LIBRARIES_MODULES}/nanoFramework.Runtime.Native
+
+        # target
+        ${TARGET_BASE_LOCATION}
 
         CMAKE_FIND_ROOT_PATH_BOTH
     )
 
-    if (BUILD_VERBOSE)
+    if(BUILD_VERBOSE)
         message("${SRC_FILE} >> ${NF_CoreCLR_SRC_FILE}")
     endif()
 
     list(APPEND NF_CoreCLR_SOURCES ${NF_CoreCLR_SRC_FILE})
-
 endforeach()
 
 include(FindPackageHandleStandardArgs)
 
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(NF_CoreCLR DEFAULT_MSG NF_CoreCLR_INCLUDE_DIRS NF_CoreCLR_SOURCES)
 
-
 # macro to be called from binutils to add Core CLR library
 # optional EXTRA_INCLUDES with include paths to be added to the library
 # optional EXTRA_COMPILE_DEFINITIONS with compiler definitions to be added to the library
 macro(nf_add_lib_coreclr)
-
     # parse arguments
     cmake_parse_arguments(NFALC "" "" "EXTRA_INCLUDES;EXTRA_COMPILE_DEFINITIONS" ${ARGN})
 
     # add this has a library
     set(LIB_NAME NF_CoreCLR)
 
     add_library(
-        ${LIB_NAME} STATIC 
-            ${NF_CoreCLR_SOURCES}
-            ${NF_Diagnostics_SOURCES})   
+        ${LIB_NAME} STATIC
+        ${NF_CoreCLR_SOURCES}
+        ${NF_Diagnostics_SOURCES})
 
     target_include_directories(
-        ${LIB_NAME} 
-        PUBLIC 
-            ${NF_CoreCLR_INCLUDE_DIRS}
-            ${NFALC_EXTRA_INCLUDES})   
+        ${LIB_NAME}
+        PUBLIC
+        ${NF_CoreCLR_INCLUDE_DIRS}
+        ${NFALC_EXTRA_INCLUDES})
 
     # TODO can be removed later
     if(RTOS_ESP32_CHECK)
-
         nf_common_compiler_definitions(TARGET ${LIB_NAME} BUILD_TARGET ${NANOCLR_PROJECT_NAME})
 
         # this is the only one different
@@ -335,13 +340,12 @@ macro(nf_add_lib_coreclr)
             ${NFALC_EXTRA_COMPILER_DEFINITIONS}
         )
 
-    else() 
+    else()
         nf_set_compile_options(TARGET ${LIB_NAME})
         nf_set_compile_definitions(TARGET ${LIB_NAME} EXTRA_COMPILE_DEFINITIONS ${NFALC_EXTRA_COMPILE_DEFINITIONS} BUILD_TARGET ${NANOCLR_PROJECT_NAME})
         nf_set_link_options(TARGET ${LIB_NAME})
     endif()
 
     # add alias
     add_library("nano::${LIB_NAME}" ALIAS ${LIB_NAME})
-
 endmacro()