Support for VSCode devcontainers

.devcontainer/Dockerfile

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+FROM ubuntu:18.04
+
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -qq \
+    && apt-get install -y \
+# x86_64 / generic packages
+      bash \
+      build-essential \
+      cmake \
+      git \
+      make \
+      python3 \
+      python3-pip \
+      tar \
+      unzip \
+      wget \ 
+      curl \
+      dos2unix \
+      clang-format \
+      clang-tidy \
+# aarch64 packages
+      libffi-dev \
+      libssl-dev \
+      python3-dev \ 
+      rustc \
+    && rm -rf /var/cache/apt/* /var/lib/apt/lists/*;
+
+RUN pip3 install adafruit-nrfutil
+# required for McuBoot
+RUN pip3 install setuptools_rust
+
+WORKDIR /opt/
+# build.sh knows how to compile but it problimatic on Win10
+COPY build.sh .
+# create_build_openocd.sh uses cmake to crate to build directory
+COPY create_build_openocd.sh .
+
+# Lets get each in a separate docker layer for better downloads
+# GCC
+# RUN bash -c "source /opt/build.sh; GetGcc;"
+RUN wget https://developer.arm.com/-/media/Files/downloads/gnu-rm/9-2020q2/gcc-arm-none-eabi-9-2020-q2-update-x86_64-linux.tar.bz2 -O - | tar -xj -C /opt
+# NrfSdk
+# RUN bash -c "source /opt/build.sh; GetNrfSdk;"
+RUN wget -q "https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/nRF5_SDK_15.3.0_59ac345.zip" -O /tmp/nRF5_SDK_15.3.0_59ac345
+RUN unzip -q /tmp/nRF5_SDK_15.3.0_59ac345 -d /opt
+RUN rm /tmp/nRF5_SDK_15.3.0_59ac345
+# McuBoot
+# RUN bash -c "source /opt/build.sh; GetMcuBoot;"
+RUN git clone https://github.com/JuulLabs-OSS/mcuboot.git
+RUN pip3 install -r ./mcuboot/scripts/requirements.txt
+
+RUN adduser infinitime
+
+ENV SOURCES_DIR /workspaces/Pinetime

.devcontainer/build.sh

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+#!/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!"

.devcontainer/build_app.sh

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+#!/bin/bash
+cmake --build /workspaces/Pinetime/build --config Release -- -j6 pinetime-app

.devcontainer/create_build_openocd.sh

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+#!/bin/bash
+rm -rf build/
+cmake -G 'Unix Makefiles' -DCMAKE_BUILD_TYPE=Release -DUSE_OPENOCD=1 -DARM_NONE_EABI_TOOLCHAIN_PATH=/opt/gcc-arm-none-eabi-9-2020-q2-update -DNRF5_SDK_PATH=/opt/nRF5_SDK_15.3.0_59ac345 -S . -Bbuild

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.154.2/containers/cpp
+{
+	// "name": "Pinetime",
+	// "image": "feabhas/pinetime-dev"
+	"build": {
+		"dockerfile": "Dockerfile",
+		// Update 'VARIANT' to pick an Debian / Ubuntu OS version: debian-10, debian-9, ubuntu-20.04, ubuntu-18.04
+		// "args": { "VARIANT": "ubuntu-20.04" }
+	},
+	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"],
+
+	// Set *default* container specific settings.json values on container create.
+	"settings": { 
+		"terminal.integrated.shell.linux": "/bin/bash"
+	},
+
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ms-vscode.cpptools",
+		"ms-vscode.cmake-tools",
+	],
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "bash /opt/create_build_openocd.sh",
+
+	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	// "remoteUser": "vscode"
+	"remoteUser": "infinitime"
+}

.devcontainer/make_build_dir.sh

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+#!/bin/bash
+cmake -G 'Unix Makefiles' -DCMAKE_BUILD_TYPE=Release -DUSE_OPENOCD=1 -DARM_NONE_EABI_TOOLCHAIN_PATH=/opt/gcc-arm-none-eabi-9-2020-q2-update -DNRF5_SDK_PATH=/opt/nRF5_SDK_15.3.0_59ac345 /workspaces/Pinetime

.vscode/c_cpp_properties.json

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+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "includePath": [
+                "${workspaceFolder}/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "gnu11",
+            "cppStandard": "gnu++14",
+            "intelliSenseMode": "linux-gcc-x64",
+            "compileCommands": "${workspaceFolder}/build/compile_commands.json"
+        }
+    ],
+    "version": 4
+}