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-rw-r--r--lib/Debian/Debhelper/Buildsystem/cmake.pm202
1 files changed, 202 insertions, 0 deletions
diff --git a/lib/Debian/Debhelper/Buildsystem/cmake.pm b/lib/Debian/Debhelper/Buildsystem/cmake.pm
new file mode 100644
index 0000000..c4a2ad9
--- /dev/null
+++ b/lib/Debian/Debhelper/Buildsystem/cmake.pm
@@ -0,0 +1,202 @@
+# A debhelper build system class for handling CMake based projects.
+# It prefers out of source tree building.
+#
+# Copyright: © 2008-2009 Modestas Vainius
+# License: GPL-2+
+
+package Debian::Debhelper::Buildsystem::cmake;
+
+use strict;
+use warnings;
+use Debian::Debhelper::Dh_Lib qw(%dh compat dpkg_architecture_value error is_cross_compiling get_buildoption print_and_doit);
+use parent qw(Debian::Debhelper::Buildsystem);
+
+my @STANDARD_CMAKE_FLAGS = qw(
+ -DCMAKE_INSTALL_PREFIX=/usr
+ -DCMAKE_BUILD_TYPE=None
+ -DCMAKE_INSTALL_SYSCONFDIR=/etc
+ -DCMAKE_INSTALL_LOCALSTATEDIR=/var
+ -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON
+ -DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF
+ -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON
+ -DFETCHCONTENT_FULLY_DISCONNECTED=ON
+);
+
+my %DEB_HOST2CMAKE_SYSTEM = (
+ 'linux' => 'Linux',
+ 'kfreebsd' => 'kFreeBSD',
+ 'hurd' => 'GNU',
+);
+
+my %GNU_CPU2SYSTEM_PROCESSOR = (
+ 'arm' => 'armv7l',
+ 'mips64el' => 'mips64',
+ 'powerpc64le' => 'ppc64le',
+);
+
+my %TARGET_BUILD_SYSTEM2CMAKE_GENERATOR = (
+ 'makefile' => 'Unix Makefiles',
+ 'ninja' => 'Ninja',
+);
+
+sub DESCRIPTION {
+ "CMake (CMakeLists.txt)"
+}
+
+sub IS_GENERATOR_BUILD_SYSTEM {
+ return 1;
+}
+
+sub SUPPORTED_TARGET_BUILD_SYSTEMS {
+ return qw(makefile ninja);
+}
+
+sub check_auto_buildable {
+ my $this=shift;
+ my ($step)=@_;
+ if (-e $this->get_sourcepath("CMakeLists.txt")) {
+ my $ret = ($step eq "configure" && 1) ||
+ $this->get_targetbuildsystem->check_auto_buildable(@_);
+ if ($this->check_auto_buildable_clean_oos_buildir(@_)) {
+ # Assume that the package can be cleaned (i.e. the build directory can
+ # be removed) as long as it is built out-of-source tree and can be
+ # configured.
+ $ret++ if not $ret;
+ }
+ # Existence of CMakeCache.txt indicates cmake has already
+ # been used by a prior build step, so should be used
+ # instead of the parent makefile class.
+ $ret++ if ($ret && -e $this->get_buildpath("CMakeCache.txt"));
+ return $ret;
+ }
+ return 0;
+}
+
+sub new {
+ my $class=shift;
+ my $this=$class->SUPER::new(@_);
+ $this->prefer_out_of_source_building(@_);
+ return $this;
+}
+
+sub configure {
+ my $this=shift;
+ # Standard set of cmake flags
+ my @flags = @STANDARD_CMAKE_FLAGS;
+ my $backend = $this->get_targetbuildsystem->NAME;
+
+ push(@flags, '-DCMAKE_INSTALL_RUNSTATEDIR=/run') if not compat(10);
+ # Speed up installation phase a bit.
+ push(@flags, "-DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON") if not compat(12);
+ # Reproducibility #962474 / #1004939
+ push(@flags, '-DCMAKE_BUILD_RPATH_USE_ORIGIN=ON') if not compat(13);
+ if (exists($TARGET_BUILD_SYSTEM2CMAKE_GENERATOR{$backend})) {
+ my $generator = $TARGET_BUILD_SYSTEM2CMAKE_GENERATOR{$backend};
+ push(@flags, "-G${generator}");
+ }
+ if (not $dh{QUIET}) {
+ push(@flags, "-DCMAKE_VERBOSE_MAKEFILE=ON");
+ }
+
+ if ($ENV{CC}) {
+ push @flags, "-DCMAKE_C_COMPILER=" . $ENV{CC};
+ }
+ if ($ENV{CXX}) {
+ push @flags, "-DCMAKE_CXX_COMPILER=" . $ENV{CXX};
+ }
+ if (is_cross_compiling()) {
+ my $deb_host = dpkg_architecture_value("DEB_HOST_ARCH_OS");
+ if (my $cmake_system = $DEB_HOST2CMAKE_SYSTEM{$deb_host}) {
+ push(@flags, "-DCMAKE_SYSTEM_NAME=${cmake_system}");
+ } else {
+ error("Cannot cross-compile - CMAKE_SYSTEM_NAME not known for ${deb_host}");
+ }
+ my $gnu_cpu = dpkg_architecture_value("DEB_HOST_GNU_CPU");
+ if (exists($GNU_CPU2SYSTEM_PROCESSOR{$gnu_cpu})) {
+ push @flags, "-DCMAKE_SYSTEM_PROCESSOR=" . $GNU_CPU2SYSTEM_PROCESSOR{$gnu_cpu};
+ } else {
+ push @flags, "-DCMAKE_SYSTEM_PROCESSOR=${gnu_cpu}";
+ }
+ if (not $ENV{CC}) {
+ push @flags, "-DCMAKE_C_COMPILER=" . dpkg_architecture_value("DEB_HOST_GNU_TYPE") . "-gcc";
+ }
+ if (not $ENV{CXX}) {
+ push @flags, "-DCMAKE_CXX_COMPILER=" . dpkg_architecture_value("DEB_HOST_GNU_TYPE") . "-g++";
+ }
+ push(@flags, "-DPKG_CONFIG_EXECUTABLE=/usr/bin/" . dpkg_architecture_value("DEB_HOST_GNU_TYPE") . "-pkg-config");
+ push(@flags, "-DPKGCONFIG_EXECUTABLE=/usr/bin/" . dpkg_architecture_value("DEB_HOST_GNU_TYPE") . "-pkg-config");
+ push(@flags, "-DQMAKE_EXECUTABLE=/usr/bin/" . dpkg_architecture_value("DEB_HOST_GNU_TYPE") . "-qmake");
+ }
+ push(@flags, "-DCMAKE_INSTALL_LIBDIR=lib/" . dpkg_architecture_value("DEB_HOST_MULTIARCH"));
+
+ # CMake doesn't respect CPPFLAGS, see #653916.
+ if ($ENV{CPPFLAGS} && ! compat(8)) {
+ $ENV{CFLAGS} .= ' ' . $ENV{CPPFLAGS};
+ $ENV{CXXFLAGS} .= ' ' . $ENV{CPPFLAGS};
+ }
+
+ $this->mkdir_builddir();
+ eval {
+ $this->doit_in_builddir("cmake", @flags, @_, $this->get_source_rel2builddir());
+ };
+ if (my $err = $@) {
+ if (-e $this->get_buildpath("CMakeCache.txt")) {
+ $this->doit_in_builddir('tail', '-v', '-n', '+0', 'CMakeCache.txt');
+ }
+ if (-e $this->get_buildpath('CMakeFiles/CMakeOutput.log')) {
+ $this->doit_in_builddir('tail', '-v', '-n', '+0', 'CMakeFiles/CMakeOutput.log');
+ }
+ if (-e $this->get_buildpath('CMakeFiles/CMakeError.log')) {
+ $this->doit_in_builddir('tail', '-v', '-n', '+0', 'CMakeFiles/CMakeError.log');
+ }
+ die $err;
+ }
+}
+
+sub build {
+ my $this=shift;
+ my $target = $this->get_targetbuildsystem;
+ if ($target->NAME eq 'makefile') {
+ # Add VERBOSE=1 for #973029 when not asked to be quiet/terse.
+ push(@_, "VERBOSE=1") if not $dh{QUIET};
+ }
+ return $this->SUPER::build(@_);
+}
+
+sub test {
+ my $this=shift;
+ my $target = $this->get_targetbuildsystem;
+ $ENV{CTEST_OUTPUT_ON_FAILURE} = 1;
+ if ($target->NAME eq 'makefile') {
+ # Unlike make, CTest does not have "unlimited parallel" setting (-j implies
+ # -j1). So in order to simulate unlimited parallel, allow to fork a huge
+ # number of threads instead.
+ my $parallel = ($this->get_parallel() > 0) ? $this->get_parallel() : 999;
+ unshift(@_, "ARGS+=-j$parallel");
+ unshift(@_, "ARGS+=--verbose") if not get_buildoption("terse");
+ }
+ return $this->SUPER::test(@_);
+}
+
+sub install {
+ my $this = shift;
+ my $target = $this->get_targetbuildsystem;
+
+ if (compat(13)) {
+ $target->install(@_);
+ } else {
+ # In compat 14 `cmake --install` is preferred to `make install`,
+ # see https://bugs.debian.org/1020732
+ my $destdir = shift;
+ my %options = (
+ update_env => {
+ 'LC_ALL' => 'C.UTF-8',
+ 'DESTDIR' => $destdir,
+ }
+ );
+ print_and_doit(\%options, 'cmake', '--install', $this->get_buildpath, @_);
+ }
+ return 1;
+}
+
+1