added devcontainer files

.devcontainer/build.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+(return 0 2>/dev/null) && SOURCED="true" || SOURCED="false"
+export LC_ALL=C.UTF-8
+export LANG=C.UTF-8
+set -x
+set -e
+
+# Default locations if the var isn't already set
+export TOOLS_DIR="${TOOLS_DIR:=/opt}"
+export SOURCES_DIR="${SOURCES_DIR:=/sources}"
+export BUILD_DIR="${BUILD_DIR:=$SOURCES_DIR/build}"
+export OUTPUT_DIR="${OUTPUT_DIR:=$BUILD_DIR/output}"
+
+export BUILD_TYPE=${BUILD_TYPE:=Release}
+export GCC_ARM_VER=${GCC_ARM_VER:="gcc-arm-none-eabi-9-2020-q2-update"}
+export NRF_SDK_VER=${NRF_SDK_VER:="nRF5_SDK_15.3.0_59ac345"}
+
+MACHINE="$(uname -m)"
+[[ "$MACHINE" == "arm64" ]] && MACHINE="aarch64"
+
+main() {
+  local target="$1"
+
+  mkdir -p "$TOOLS_DIR"
+  
+  [[ ! -d "$TOOLS_DIR/$GCC_ARM_VER" ]] && GetGcc
+  [[ ! -d "$TOOLS_DIR/$NRF_SDK_VER" ]] && GetNrfSdk
+  [[ ! -d "$TOOLS_DIR/mcuboot" ]] && GetMcuBoot
+
+  mkdir -p "$BUILD_DIR"
+
+  CmakeGenerate
+  CmakeBuild $target
+  BUILD_RESULT=$? 
+  if [ "$DISABLE_POSTBUILD" != "true" -a "$BUILD_RESULT" == 0 ]; then
+    source "$BUILD_DIR/post_build.sh"
+  fi
+}
+
+GetGcc() {
+  GCC_SRC="$GCC_ARM_VER-$MACHINE-linux.tar.bz"
+  wget -q https://developer.arm.com/-/media/Files/downloads/gnu-rm/9-2020q2/$GCC_SRC -O - | tar -xj -C $TOOLS_DIR/
+}
+
+GetMcuBoot() {
+  git clone https://github.com/JuulLabs-OSS/mcuboot.git "$TOOLS_DIR/mcuboot"
+  pip3 install -r "$TOOLS_DIR/mcuboot/scripts/requirements.txt"
+}
+
+GetNrfSdk() {
+  wget -q "https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/$NRF_SDK_VER.zip" -O /tmp/$NRF_SDK_VER
+  unzip -q /tmp/$NRF_SDK_VER -d "$TOOLS_DIR/"
+  rm /tmp/$NRF_SDK_VER
+}
+
+CmakeGenerate() {
+  # We can swap the CD and trailing SOURCES_DIR for -B and -S respectively
+  # once we go to newer CMake (Ubuntu 18.10 gives us CMake 3.10)
+  cd "$BUILD_DIR"
+
+  cmake -G "Unix Makefiles" \
+    -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
+    -DUSE_OPENOCD=1 \
+    -DARM_NONE_EABI_TOOLCHAIN_PATH="$TOOLS_DIR/$GCC_ARM_VER" \
+    -DNRF5_SDK_PATH="$TOOLS_DIR/$NRF_SDK_VER" \
+    "$SOURCES_DIR"
+  cmake -L -N .
+}
+
+CmakeBuild() {
+  local target="$1"
+  [[ -n "$target" ]] && target="--target $target"
+  if cmake --build "$BUILD_DIR" --config $BUILD_TYPE $target -- -j$(nproc)
+    then return 0; else return 1; 
+  fi
+}
+
+[[ $SOURCED == "false" ]] && main "$@" || echo "Sourced!"