Add AWS CodeBuild spec to run codecov w cmake

This is not a part of CI.

Author: yumibagge

buildspec-linux-cmake-gcc-cov.yml

@@ -0,0 +1,37 @@
+version: 0.2
+
+env:
+  variables:
+    # CodeBuild console doesn't display color codes correctly
+    TESTPL_COLOR_OUTPUT: 0
+
+phases:
+  install:
+    runtime-versions:
+      java: openjdk8    
+    commands:
+      - sed -i 's#/archive.ubuntu.com#/us-east-1.ec2.archive.ubuntu.com#g' /etc/apt/sources.list
+      - add-apt-repository ppa:ubuntu-toolchain-r/test
+      - apt-get update -y
+      - apt-get install -y flex bison make git libwww-perl patch ccache libc6-dev-i386 jq lcov cmake curl gdb python-pip
+      - pip install codecov
+  build:
+    commands:
+      - echo Build started on `date`
+      - git submodule update --init --recursive
+      - cmake -H. -Bbuild '-Denable_coverage=1' '-Dparallel_tests=2' '-DCMAKE_CXX_COMPILER=/usr/bin/g++'
+      - cmake --build build --target coverage -- -j2
+  post_build:
+    commands:
+      - lcov --capture --directory build --output-file ./lcov.info
+      - VCS_PULL_REQUEST=$(echo $CODEBUILD_SOURCE_VERSION | sed 's/pr\///g')
+      - COV_SCRIPT=/root/.cache/codecov.sh
+      - if [ ! -f "$COV_SCRIPT" ]; then curl -s https://codecov.io/bash > "$COV_SCRIPT"; fi
+      - echo "$CODEBUILD_INITIATOR" | grep GitHub && bash "$COV_SCRIPT" -t "$CODECOV_TOKEN" || true
+      - echo Build completed on `date`
+cache:
+  paths:
+    - '/var/cache/apt/**/*'
+    - '/var/lib/apt/lists/**/*'
+    - '/root/.ccache/**/*'
+    - '/root/.cache/codecov.sh'