Enhance C++ development environment by adding gdb and ccache support

Author: polRk

.devcontainer/Dockerfile

@@ -5,7 +5,7 @@ RUN apt-get update && apt-get -y install software-properties-common
 
 # Install C++ tools and libraries
 RUN add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get -y update && apt-get -y install \
-    git cmake ninja-build libidn11-dev ragel yasm protobuf-compiler \
+    git gdb cmake ninja-build libidn11-dev ragel yasm protobuf-compiler \
     protobuf-compiler-grpc libprotobuf-dev libgrpc++-dev libgrpc-dev libgrpc++1 libgrpc10 \
     rapidjson-dev zlib1g-dev libxxhash-dev libzstd-dev libsnappy-dev libgtest-dev libgmock-dev \
     libbz2-dev libdouble-conversion-dev libstdc++-13-dev liblz4-dev libssl-dev \

.devcontainer/configure.sh

@@ -4,4 +4,4 @@ WORKSPACE_FOLDER=$1
 cd $1
 mkdir -p build
 git submodule update --init --recursive
-cmake --preset release-test -DCMAKE_EXPORT_COMPILE_COMMANDS=1
+cmake --preset release-test-with-ccache-basedir -DCMAKE_EXPORT_COMPILE_COMMANDS=1

.devcontainer/devcontainer.json

@@ -18,7 +18,7 @@
 	},
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	"forwardPorts": [],
-	"initializeCommand": "cd \"${localWorkspaceFolder}\" && git config --local user.email \"$(git config user.email)\" && git config --local user.name \"$(git config user.name)\"",
+	"initializeCommand": "mkdir -p ${localEnv:HOME}/.ccache && cd \"${localWorkspaceFolder}\" && git config --local user.email \"$(git config user.email)\" && git config --local user.name \"$(git config user.name)\"",
 	// Use 'postCreateCommand' to run commands after the container is created.
 	"postCreateCommand": ".devcontainer/configure.sh ${containerWorkspaceFolder}",
 	// Configure tool-specific properties.
@@ -33,6 +33,9 @@
 			]
 		}
 	},
+	"mounts": [
+		"source=${localEnv:HOME}/.ccache,target=/root/.ccache,type=bind,consistency=cached"
+	],
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
 	"remoteUser": "root"
 }