add scripts/build.sh to consolidate cmake logic between Dockerfiles, Jenkinsfiles, etc.

Author: Tony Ricciardi

docker/Dockerfile

@@ -14,7 +14,7 @@ WORKDIR /home/pyth
 
 COPY --chown=pyth:pyth ${GITHUB_WORKSPACE} pyth-client/
 
-RUN cd pyth-client && mkdir build && cd build && cmake .. && make && ctest
+RUN cd pyth-client && ./scripts/build.sh
 
 RUN echo "\nexport PATH=\$PATH:\$HOME/pyth-client/build" >> .profile
 

scripts/build.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+set -eu
+
+if [[ $# -ge 1 ]]
+then
+  BUILD_DIR="$1"
+  shift
+else
+  THIS_DIR="$( dirname "${BASH_SOURCE[0]}" )"
+  THIS_DIR="$( cd "${THIS_DIR}" && pwd )"
+  ROOT_DIR="$( dirname "${THIS_DIR}" )"
+  BUILD_DIR="${ROOT_DIR}/build"
+fi
+
+ROOT_DIR="$( mkdir -p "${BUILD_DIR}" && cd "${BUILD_DIR}/.." && pwd )"
+BUILD_DIR="$( realpath --relative-to="${ROOT_DIR}" "${BUILD_DIR}" )"
+
+if [[ ! -v CMAKE_ARGS && $BUILD_DIR == *debug* ]]
+then
+  CMAKE_ARGS=( "-DCMAKE_BUILD_TYPE=Debug" )
+fi
+
+set -x
+
+cd "${ROOT_DIR}"
+rm -rf "${BUILD_DIR}"
+mkdir "${BUILD_DIR}"
+
+cd "${BUILD_DIR}"
+cmake ${CMAKE_ARGS[@]+"${CMAKE_ARGS[@]}"} ..
+make "$@"
+ctest