IVGCVSW-4487 Remove boost::filesystem

 * Replace filesystem::path
 * Replace filesystem::exists
 * Replace filesystem::is_directory
 * Replace filesystem::directory_iterator
 * Replace filesystem::filesystem_error exception
 * Replace filesystem::temp_directory_path
 * Replace filesystem::unique path
 * Replace filesystem::ofstream with std::ofstream
 * Replace filesystem::remove
 * Replace filesystem::is_regular_file
 * Replace boost::optional with armnn::Optional in touched files
 * Remove some superfluous includes
 * Update build guides, GlobalConfig.cmake and CMakeLists.txt
 * Remove redundant armnnUtils::Filesystem::Remove function.
 * Remove redundant armnnUtils::Filesystem::GetFileSize function.

Temporarily adding back Boost::filesystem to enable Boost::dll.

Signed-off-by: Francis Murtagh <francis.murtagh@arm.com>
Signed-off-by: Colm Donelan <Colm.Donelan@arm.com>

Change-Id: Ifa46d4a0097d2612ddacd8e9736c0b36e365fb11

4 files changed, 8 insertions, 12 deletions

diff --git a/src/timelineDecoder/CMakeLists.txt b/src/timelineDecoder/CMakeLists.txt
index 4702577197..695aa5cbe8 100644
--- a/src/timelineDecoder/CMakeLists.txt
+++ b/src/timelineDecoder/CMakeLists.txt
@@ -17,7 +17,8 @@ if(BUILD_TIMELINE_DECODER)
         TimelineDirectoryCaptureCommandHandler.hpp)
 
     include_directories(${PROJECT_SOURCE_DIR}/src/profiling
-                        ${PROJECT_SOURCE_DIR}/profiling/common/include)
+                        ${PROJECT_SOURCE_DIR}/profiling/common/include
+                        ${PROJECT_SOURCE_DIR}/src/armnnUtils)
 
     if(BUILD_UNIT_TESTS)
       target_include_directories(UnitTests PRIVATE ${PROJECT_SOURCE_DIR}/src/timelineDecoder)
diff --git a/src/timelineDecoder/JSONTimelineDecoder.cpp b/src/timelineDecoder/JSONTimelineDecoder.cpp
index 84472d8c99..a0392149ed 100644
--- a/src/timelineDecoder/JSONTimelineDecoder.cpp
+++ b/src/timelineDecoder/JSONTimelineDecoder.cpp
@@ -8,7 +8,6 @@
 
 #include <string>
 #include <fstream>
-#include <boost/filesystem/fstream.hpp>
 
 namespace armnn
 {
@@ -246,7 +245,7 @@ void JSONTimelineDecoder::JSONEntity::SetParent(JSONEntity& parent)
 void JSONTimelineDecoder::PrintJSON(JSONTimelineDecoder::JSONEntity& rootEntity)
 {
     std::string jsonString = GetJSONString(rootEntity);
-    boost::filesystem::ofstream ofs{this->outputJSONFile};
+    std::ofstream ofs{this->outputJSONFile};
     ofs << jsonString;
     ofs.close();
 }
diff --git a/src/timelineDecoder/JSONTimelineDecoder.hpp b/src/timelineDecoder/JSONTimelineDecoder.hpp
index 38d698387a..4d6fcecebd 100644
--- a/src/timelineDecoder/JSONTimelineDecoder.hpp
+++ b/src/timelineDecoder/JSONTimelineDecoder.hpp
@@ -7,10 +7,9 @@
 
 #include <armnn/profiling/ITimelineDecoder.hpp>
 
+#include <Filesystem.hpp>
 #include <map>
 #include <vector>
-#include <boost/filesystem/path.hpp>
-#include <boost/filesystem.hpp>
 
 namespace armnn
 {
@@ -65,8 +64,7 @@ public:
 
 private:
     Model m_Model;
-    boost::filesystem::path fileDir = boost::filesystem::temp_directory_path();
-    boost::filesystem::path p{fileDir / boost::filesystem::unique_path("output.json")};
+    fs::path p = armnnUtils::Filesystem::NamedTempFile("output.json");
 
     std::string outputJSONFile = p.string();
 
diff --git a/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp b/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
index 2d78564a2a..82414192f2 100644
--- a/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
+++ b/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
@@ -6,12 +6,12 @@
 #include <JSONTimelineDecoder.hpp>
 #include <TimelineCaptureCommandHandler.hpp>
 #include <TimelineDecoder.hpp>
+#include <Filesystem.hpp>
 
 #include <boost/test/test_tools.hpp>
 #include <boost/test/unit_test_suite.hpp>
 
 #include <fstream>
-#include <boost/filesystem.hpp>
 
 BOOST_AUTO_TEST_SUITE(JSONTimelineDecoderTests)
 
@@ -797,10 +797,8 @@ BOOST_AUTO_TEST_CASE(JSONTimelineDecoderTestJSON)
 
     timelineDecoder.PrintJSON(rootEntity);
 
-    boost::filesystem::ifstream inFile;
-    boost::filesystem::path fileDir = boost::filesystem::temp_directory_path();
-    boost::filesystem::path p{fileDir / boost::filesystem::unique_path("output.json")};
-
+    fs::ifstream inFile;
+    fs::path p{fs::temp_directory_path() / "output.json"};
     inFile.open(p); //open the input file
 
     std::stringstream strStream;