add travis-ci.org build machinery

The idea is that .travis.yml is specific to Travis-CI, but most of the
actual work is done in tools/ci-build.sh, which should be reasonably
CI-platform-agnostic (it currently assumes that build-dependendencies are
preinstalled, that the "native" platform we're building on is GNU/Linux
or something very close, and that "mingw" means mingw-w64 as packaged
in Debian and Ubuntu).

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=93194
Reviewed-by: Ralf Habacker <ralf.habacker@freenet.de>

3 files changed, 271 insertions, 0 deletions

diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..bab1718b
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,47 @@
+sudo: required
+dist: trusty
+language: c
+install:
+  - test "$dbus_ci_host" != mingw || sudo dpkg --add-architecture i386
+  - sudo apt-get -qq -y update
+  - sudo apt-get -qq -y build-dep dbus
+  - >
+    sudo apt-get -qq -y install
+    automake
+    autotools-dev
+    debhelper
+    dh-autoreconf
+    doxygen
+    dpkg-dev
+    gnome-desktop-testing
+    libapparmor-dev
+    libaudit-dev
+    libcap-ng-dev
+    libexpat-dev
+    libglib2.0-dev
+    libselinux1-dev
+    libx11-dev
+    python
+    python-dbus
+    python-gi
+    valgrind
+    xmlto
+    xsltproc
+  - >
+    test "$dbus_ci_host" != mingw || sudo apt-get -qq -y install
+    binutils-mingw-w64-i686 g++-mingw-w64-i686 wine:i386
+script:
+  # python-dbus and python-gi aren't available to Travis's version of
+  # Python in /opt, which it uses as a default
+  - PYTHON=/usr/bin/python dbus_ci_parallel=2 dbus_ci_sudo=yes ./tools/ci-build.sh
+
+env:
+  - dbus_ci_variant=release
+  - dbus_ci_variant=debug
+  - dbus_ci_variant=reduced
+  - dbus_ci_variant=legacy
+  - dbus_ci_buildsys=cmake
+  - dbus_ci_host=mingw
+  - dbus_ci_host=mingw dbus_ci_buildsys=cmake
+
+# vim:set sw=2 sts=2 et:
diff --git a/cmake/i686-w64-mingw32.cmake b/cmake/i686-w64-mingw32.cmake
new file mode 100644
index 00000000..1be4e78c
--- /dev/null
+++ b/cmake/i686-w64-mingw32.cmake
@@ -0,0 +1,20 @@
+# Toolchain for mingw-w64 32-bit compilers, as shipped in Debian/Ubuntu.
+
+set(GNU_HOST i686-w64-mingw32)
+set(CMAKE_SYSTEM_PROCESSOR "i686")
+
+set(COMPILER_PREFIX "${GNU_HOST}-")
+
+set(CMAKE_SYSTEM_NAME "Windows")
+set(CMAKE_CROSSCOMPILING TRUE)
+set(WIN32 TRUE)
+set(MINGW TRUE)
+
+include(CMakeForceCompiler)
+cmake_force_c_compiler(${COMPILER_PREFIX}gcc GNU)
+cmake_force_cxx_compiler(${COMPILER_PREFIX}g++ GNU)
+set(CMAKE_RC_COMPILER ${COMPILER_PREFIX}windres)
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/tools/ci-build.sh b/tools/ci-build.sh
new file mode 100755
index 00000000..a2abc0b5
--- /dev/null
+++ b/tools/ci-build.sh
@@ -0,0 +1,204 @@
+#!/bin/sh
+
+set -e
+set -x
+
+if [ -z "$dbus_ci_variant" ]; then
+	dbus_ci_variant=release
+fi
+
+if [ -z "$dbus_ci_host" ]; then
+	dbus_ci_host=native
+fi
+
+if [ -z "$dbus_ci_buildsys" ]; then
+	dbus_ci_buildsys=autotools
+fi
+
+if [ -z "$dbus_ci_parallel" ]; then
+	dbus_ci_parallel=1
+fi
+
+dbus_test=yes
+dbus_test_fatal=yes
+
+NOCONFIGURE=1 ./autogen.sh
+
+srcdir="$(pwd)"
+mkdir ci-build-${dbus_ci_variant}-${dbus_ci_host}
+cd ci-build-${dbus_ci_variant}-${dbus_ci_host}
+
+make="make -j${dbus_ci_parallel} V=1 VERBOSE=1"
+
+case "$dbus_ci_host" in
+	(mingw)
+		mirror=http://sourceforge.net/projects/msys2/files/REPOS/MINGW/i686/
+		mingw="$(pwd)/mingw32"
+		install -d "${mingw}"
+		export PKG_CONFIG_LIBDIR="${mingw}/lib/pkgconfig"
+		export PKG_CONFIG_PATH=
+		export PKG_CONFIG="pkg-config --define-variable=prefix=${mingw}"
+		unset CC
+		unset CXX
+		for pkg in \
+			expat-2.1.0-6 \
+			gcc-libs-5.2.0-4 \
+			gettext-0.19.6-1 \
+			glib2-2.46.1-1 \
+			libffi-3.2.1-3 \
+			zlib-1.2.8-9 \
+			; do
+			wget ${mirror}/mingw-w64-i686-${pkg}-any.pkg.tar.xz
+			tar -xvf mingw-w64-i686-${pkg}-any.pkg.tar.xz
+		done
+		export TMPDIR=/tmp
+		;;
+esac
+
+case "$dbus_ci_buildsys" in
+	(autotools)
+		case "$dbus_ci_variant" in
+			(debug)
+				# Full developer/debug build.
+				set _ "$@"
+				set "$@" --enable-developer --enable-tests
+				shift
+				# The test coverage for OOM-safety is too
+				# verbose to be useful on travis-ci.
+				export DBUS_TEST_MALLOC_FAILURES=0
+				;;
+
+			(reduced)
+				# A smaller configuration than normal, with
+				# various features disabled; this emulates
+				# an older system or one that does not have
+				# all the optional libraries.
+				set _ "$@"
+				# No LSMs (the release build has both)
+				set "$@" --disable-selinux --disable-apparmor
+				# No inotify (we will use dnotify)
+				set "$@" --disable-inotify
+				# No epoll or kqueue (we will use poll)
+				set "$@" --disable-epoll --disable-kqueue
+				# No special init system support
+				set "$@" --disable-launchd --disable-systemd
+				# No libaudit or valgrind
+				set "$@" --disable-libaudit --without-valgrind
+				shift
+				;;
+
+			(legacy)
+				# An unrealistically cut-down configuration,
+				# to check that it compiles and works.
+				set _ "$@"
+				# Disable native atomic operations on Unix
+				# (armv4, as used as the baseline for Debian
+				# armel, is one architecture that really
+				# doesn't have them)
+				set "$@" dbus_cv_sync_sub_and_fetch=no
+				# No epoll, kqueue or poll (we will fall back
+				# to select, even on Unix where we would
+				# usually at least have poll)
+				set "$@" --disable-epoll --disable-kqueue
+				set "$@" CPPFLAGS=-DBROKEN_POLL=1
+				# Enable SELinux and AppArmor but not
+				# libaudit - that configuration has sometimes
+				# failed
+				set "$@" --enable-selinux --enable-apparmor
+				set "$@" --disable-libaudit --without-valgrind
+				# No directory monitoring at all
+				set "$@" --disable-inotify --disable-dnotify
+				# No special init system support
+				set "$@" --disable-launchd --disable-systemd
+				# No X11 autolaunching
+				set "$@" --disable-x11-autolaunch
+				shift
+				;;
+
+			(*)
+				;;
+		esac
+
+		case "$dbus_ci_host" in
+			(mingw)
+				set _ "$@"
+				set "$@" --build="$(config.guess)"
+				set "$@" --host=i686-w64-mingw32
+				set "$@" LDFLAGS=-L"${mingw}/lib"
+				set "$@" CPPFLAGS=-I"${mingw}/include"
+				set "$@" CFLAGS=-static-libgcc
+				set "$@" CXXFLAGS=-static-libgcc
+				# don't run tests yet, Wine needs Xvfb and
+				# more msys2 libraries
+				dbus_test=
+				# don't "make install" system-wide
+				dbus_ci_sudo=
+				shift
+				;;
+		esac
+
+		../configure \
+			--enable-installed-tests \
+			--enable-maintainer-mode \
+			--enable-modular-tests \
+			--with-glib \
+			"$@"
+
+		${make}
+		[ -z "$dbus_test" ] || ${make} check || [ -z "$dbus_test_fatal" ]
+		cat test/test-suite.log || :
+		[ -z "$dbus_test" ] || ${make} distcheck || \
+			[ -z "$dbus_test_fatal" ]
+
+		${make} install DESTDIR=$(pwd)/DESTDIR
+		( cd DESTDIR && find . )
+
+		if [ -n "$dbus_ci_sudo" ] && [ -n "$dbus_test" ]; then
+			sudo ${make} install
+			LD_LIBRARY_PATH=/usr/local/lib ${make} installcheck || \
+				[ -z "$dbus_test_fatal" ]
+			cat test/test-suite.log || :
+
+			# re-run them with gnome-desktop-testing
+			env LD_LIBRARY_PATH=/usr/local/lib \
+			gnome-desktop-testing-runner -d /usr/local/share dbus/ || \
+				[ -z "$dbus_test_fatal" ]
+
+			# these tests benefit from being re-run as root
+			sudo env LD_LIBRARY_PATH=/usr/local/lib \
+			gnome-desktop-testing-runner -d /usr/local/share \
+				dbus/test-uid-permissions_with_config.test || \
+				[ -z "$dbus_test_fatal" ]
+		fi
+		;;
+
+	(cmake)
+		case "$dbus_ci_host" in
+			(mingw)
+				set _ "$@"
+				set "$@" -D CMAKE_TOOLCHAIN_FILE="${srcdir}/cmake/i686-w64-mingw32.cmake"
+				set "$@" -D CMAKE_PREFIX_PATH="${mingw}"
+				set "$@" -D CMAKE_INCLUDE_PATH="${mingw}/include"
+				set "$@" -D CMAKE_LIBRARY_PATH="${mingw}/lib"
+				set "$@" -D EXPAT_LIBRARY="${mingw}/lib/libexpat.dll.a"
+				set "$@" -D GLIB2_LIBRARIES="${mingw}/lib/libglib-2.0.dll.a"
+				set "$@" -D GOBJECT_LIBRARIES="${mingw}/lib/libgobject-2.0.dll.a"
+				set "$@" -D GIO_LIBRARIES="${mingw}/lib/libgio-2.0.dll.a"
+				shift
+				# don't run tests yet, Wine needs Xvfb and more
+				# msys2 libraries
+				dbus_test=
+				;;
+		esac
+
+		cmake "$@" ../cmake
+
+		${make}
+		# The test coverage for OOM-safety is too verbose to be useful on
+		# travis-ci.
+		export DBUS_TEST_MALLOC_FAILURES=0
+		[ -z "$dbus_test" ] || ctest -VV || [ -z "$dbus_test_fatal" ]
+		${make} install DESTDIR=$(pwd)/DESTDIR
+		( cd DESTDIR && find . )
+		;;
+esac