Merge pull request #19 from mbitsnbites/feature/add_a_build_test

Add a test that builds Bullet Physics using BuildCache

.travis.yml

@@ -19,6 +19,7 @@ matrix:
         - cmake --build .
         - CTEST_OUTPUT_ON_FAILURE=TRUE ctest
         - ../test_scripts/run_lock_file_stresstest.sh
+        - ../test_scripts/build_with_buildcache.sh
 
     # macOS clang
     - os: osx
@@ -33,6 +34,7 @@ matrix:
         - cmake --build .
         - CTEST_OUTPUT_ON_FAILURE=TRUE ctest
         - ../test_scripts/run_lock_file_stresstest.sh
+        - ../test_scripts/build_with_buildcache.sh
 
     # Windows MSVC 2017
     - os: windows
@@ -50,4 +52,5 @@ matrix:
           ninja'
         - CTEST_OUTPUT_ON_FAILURE=TRUE ninja test
         - ../test_scripts/run_lock_file_stresstest.sh
-
+        # TODO(m): It would be nice to get this working...
+        #- cmd.exe /C '"C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" amd64 && "C:\Program Files\Git\bin\sh.exe" ../test_scripts/build_with_buildcache.sh'

test_scripts/build_with_buildcache.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+# Check if we're running on Windows (this is mostly a trick to get the script
+# working on the Travis-CI Windows slaves that run Git bash).
+function is_windows() {
+    if [ "$(expr substr $(uname -s) 1 5)" == "MINGW" ]; then
+        return 0
+    fi
+    return 1
+}
+
+function cleanup() {
+    [[ ! -z "${PROJDIR}" ]] && rm -rf "${PROJDIR}"
+    [[ ! -z "${BUILDCACHE_DIR}" ]] && rm -rf "${BUILDCACHE_DIR}"
+}
+
+# Treat errors with exit code 1.
+function trap_handler() {
+    MYSELF="$0"
+    LASTLINE="$1"
+    LASTERR="$2"
+    echo "ERROR: ${MYSELF}: line ${LASTLINE}: exit status of last command: ${LASTERR}"
+
+    cleanup
+    exit "${LASTERR}"
+}
+trap 'trap_handler ${LINENO} ${$?}' ERR INT TERM
+
+# Set up a working environment for Windows if needed.
+EXESUFFIX=
+if is_windows; then
+    EXESUFFIX=".exe"
+fi
+
+# Note: This script is expected to be run from the BuildCache build folder.
+BUILDCACHEDIR="$( realpath "$(pwd)" )"
+
+# Install BuildCache and symlinks to BuildCache for common compilers.
+BUILDCACHEEXE="${BUILDCACHEDIR}/buildcache${EXESUFFIX}"
+echo "Buildcache executable: ${BUILDCACHEEXE}"
+SYMLINKSDIR="${BUILDCACHEDIR}/symlinks"
+echo "Install symlinks in: ${SYMLINKSDIR}"
+rm -rf "${SYMLINKSDIR}" ; mkdir -p "${SYMLINKSDIR}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/cc${EXESUFFIX}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/c++${EXESUFFIX}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/gcc${EXESUFFIX}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/g++${EXESUFFIX}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/clang${EXESUFFIX}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/clang++${EXESUFFIX}"
+ln -s "${BUILDCACHEEXE}" "${SYMLINKSDIR}/cl${EXESUFFIX}"
+export PATH="${SYMLINKSDIR}:${BUILDCACHEDIR}:${PATH}"
+
+# Configure BuildCache.
+export BUILDCACHE_DIR=/tmp/.buildcache-$$
+rm -rf "${BUILDCACHE_DIR}" ; mkdir -p "${BUILDCACHE_DIR}"
+export BUILDCACHE_DEBUG=2
+
+# Clone the project.
+PROJDIR="/tmp/proj-$$"
+SRCDIR="${PROJDIR}"
+BUILDDIR="${PROJDIR}/out"
+rm -rf "${PROJDIR}"
+git clone --branch 2.88 --depth 1 https://github.com/bulletphysics/bullet3.git "${PROJDIR}"
+
+echo "======== First build (cold cache) ========"
+buildcache -C
+
+cd "${PROJDIR}"
+rm -rf "${BUILDDIR}" ; mkdir -p "${BUILDDIR}"
+cd "${BUILDDIR}"
+cmake -G Ninja -DCMAKE_BUILD_TYPE=Release "${SRCDIR}"
+
+time ninja
+buildcache -s
+
+echo "======== Second build (warm cache) ========"
+cd "${PROJDIR}"
+rm -rf "${BUILDDIR}" ; mkdir -p "${BUILDDIR}"
+cd "${BUILDDIR}"
+cmake -G Ninja -DCMAKE_BUILD_TYPE=Release "${SRCDIR}"
+
+time ninja
+buildcache -s
+
+echo "======== Cleaning up ========"
+cleanup