[ndctl PATCH v3 15/16] build: Add meson rpmbuild support

[Dan Williams <dan.j.williams@intel.com>]

Beyond being a prerequisite for removing autotools support, this capability
served as validation that the meson conversion generated all the same files
as autotools and installed them to the same expected locations.

The procedure to use the rpmbuild.sh script is:

    meson setup build
    meson compile -C build rhel/ndctl.spec
    ./rpmbuild.sh build/rhel/ndctl.spec

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 .gitignore       |    2 +-
 Makefile.am      |    2 ++
 meson.build      |    6 ++++++
 ndctl.spec.in    |   23 +++++++++++++++++++++++
 rhel/meson.build |   23 +++++++++++++++++++++++
 rpmbuild.sh      |    5 ++++-
 sles/meson.build |   36 ++++++++++++++++++++++++++++++++++++
 7 files changed, 95 insertions(+), 2 deletions(-)
 create mode 100644 rhel/meson.build
 create mode 100644 sles/meson.build

diff --git a/.gitignore b/.gitignore
index 91c5e37b7fef..df8245dc10d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,7 +35,7 @@ daxctl/lib/libdaxctl.pc
 ndctl/config.h
 ndctl/lib/libndctl.pc
 ndctl/ndctl
-rhel/
+rhel/ndctl.spec
 sles/ndctl.spec
 version.m4
 *.swp
diff --git a/Makefile.am b/Makefile.am
index daea39f5d41e..b78059b0b364 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -22,6 +22,7 @@ noinst_SCRIPTS = rhel/ndctl.spec sles/ndctl.spec
 CLEANFILES += $(noinst_SCRIPTS)
 
 do_rhel_subst = sed -e 's,VERSION,$(VERSION),g' \
+            -e 's,MESON,0,g' \
             -e 's,DAX_DNAME,daxctl-devel,g' \
             -e 's,CXL_DNAME,cxl-devel,g' \
             -e 's,DNAME,ndctl-devel,g' \
@@ -31,6 +32,7 @@ do_rhel_subst = sed -e 's,VERSION,$(VERSION),g' \
 	    -e 's,LNAME,ndctl-libs,g'
 
 do_sles_subst = sed -e 's,VERSION,$(VERSION),g' \
+            -e 's,MESON,0,g' \
             -e 's,DAX_DNAME,libdaxctl-devel,g' \
             -e 's,CXL_DNAME,libcxl-devel,g' \
             -e 's,DNAME,libndctl-devel,g' \
diff --git a/meson.build b/meson.build
index 272ac642c193..b22fb2e57f6b 100644
--- a/meson.build
+++ b/meson.build
@@ -278,3 +278,9 @@ if get_option('docs').enabled()
 endif
 subdir('test')
 subdir('contrib')
+
+# only support spec file generation from git builds
+if version_tag == ''
+  subdir('rhel')
+  subdir('sles')
+endif
diff --git a/ndctl.spec.in b/ndctl.spec.in
index cb911194a2cb..9447267839d2 100644
--- a/ndctl.spec.in
+++ b/ndctl.spec.in
@@ -6,14 +6,20 @@ License:	GPLv2
 Url:		https://github.com/pmem/ndctl
 Source0:	https://github.com/pmem/%{name}/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
 
+%define with_meson MESON
 Requires:	LNAME%{?_isa} = %{version}-%{release}
 Requires:	DAX_LNAME%{?_isa} = %{version}-%{release}
 Requires:	CXL_LNAME%{?_isa} = %{version}-%{release}
 BuildRequires:	autoconf
 %if 0%{?rhel} < 9
 BuildRequires:	asciidoc
+%if !%{with_meson}
 %define asciidoc --disable-asciidoctor
+%endif
 %else
+%if %{with_meson}
+%define asciidoctor -Dasciidoctor=enabled
+%endif
 BuildRequires:	rubygem-asciidoctor
 %endif
 BuildRequires:	xmlto
@@ -30,6 +36,10 @@ BuildRequires:	keyutils-libs-devel
 BuildRequires:	systemd-rpm-macros
 BuildRequires:	iniparser-devel
 
+%if %{with_meson}
+BuildRequires:	meson
+%endif
+
 %description
 Utility library for managing the "libnvdimm" subsystem.  The "libnvdimm"
 subsystem defines a kernel device model and control message interface for
@@ -117,17 +127,30 @@ libcxl is a library for enumerating and communicating with CXL devices.
 %setup -q ndctl-%{version}
 
 %build
+%if %{with_meson}
+%meson %{?asciidoctor} -Dversion-tag=%{version}
+%meson_build
+%else
 echo %{version} > version
 ./autogen.sh
 %configure --disable-static --disable-silent-rules %{?asciidoc}
 make %{?_smp_mflags}
+%endif
 
 %install
+%if %{with_meson}
+%meson_install
+%else
 %make_install
 find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
+%endif
 
 %check
+%if %{with_meson}
+%meson_test
+%else
 make check
+%endif
 
 %ldconfig_scriptlets -n LNAME
 
diff --git a/rhel/meson.build b/rhel/meson.build
new file mode 100644
index 000000000000..8672098d84e1
--- /dev/null
+++ b/rhel/meson.build
@@ -0,0 +1,23 @@
+rhel_spec1 = vcs_tag(
+    input : '../ndctl.spec.in',
+    output : 'ndctl.spec.in',
+    command: vcs_tagger,
+    replace_string : 'VERSION',
+)
+
+rhel_spec2 = custom_target('ndctl.spec',
+  command : [
+    'sed', '-e', 's,MESON,1,g',
+	   '-e', 's,DAX_DNAME,daxctl-devel,g',
+	   '-e', 's,CXL_DNAME,cxl-devel,g',
+	   '-e', 's,DNAME,ndctl-devel,g',
+	   '-e', '/^%defattr.*/d',
+	   '-e', 's,DAX_LNAME,daxctl-libs,g',
+	   '-e', 's,CXL_LNAME,cxl-libs,g',
+	   '-e', 's,LNAME,ndctl-libs,g',
+	   '@INPUT@'
+  ],
+  input : rhel_spec1,
+  output : 'ndctl.spec',
+  capture : true,
+)
diff --git a/rpmbuild.sh b/rpmbuild.sh
index fe4154b6be9f..b1f4d9e5c0f3 100755
--- a/rpmbuild.sh
+++ b/rpmbuild.sh
@@ -1,6 +1,9 @@
 #!/bin/bash
+
+spec=${1:-$(dirname $0)/rhel/ndctl.spec)}
+
 pushd $(dirname $0) >/dev/null
 [ ! -d ~/rpmbuild/SOURCES ] && echo "rpmdev tree not found" && exit 1
 ./make-git-snapshot.sh
 popd > /dev/null
-rpmbuild -ba $(dirname $0)/rhel/ndctl.spec
+rpmbuild --nocheck -ba $spec
diff --git a/sles/meson.build b/sles/meson.build
new file mode 100644
index 000000000000..21c72cb4f5ec
--- /dev/null
+++ b/sles/meson.build
@@ -0,0 +1,36 @@
+sles_spec1 = vcs_tag(
+    input : '../ndctl.spec.in',
+    output : 'ndctl.spec.sles.in',
+    command: vcs_tagger,
+    replace_string : 'VERSION',
+)
+
+header = files('header')
+
+sles_spec2 = custom_target('ndctl.spec.in',
+  command : [
+    'cat', header, '@INPUT@',
+  ],
+  input : sles_spec1,
+  output : 'ndctl.spec.in',
+  capture : true,
+)
+
+sles_spec3 = custom_target('ndctl.spec',
+  command : [
+    'sed', '-e', 's,MESON,1,g',
+           '-e', 's,DAX_DNAME,libdaxctl-devel,g',
+           '-e', 's,CXL_DNAME,libcxl-devel,g',
+           '-e', 's,DNAME,libndctl-devel,g',
+           '-e', 's,%license,%doc,g',
+           '-e', 's,\(^License:.*GPL\)v2,\1-2.0,g',
+           '-e', 's,DAX_LNAME,libdaxctl@0@,g'.format(LIBDAXCTL_CURRENT - LIBDAXCTL_AGE),
+           '-e', 's,CXL_LNAME,libcxl@0@,g'.format(LIBCXL_CURRENT - LIBCXL_AGE),
+           '-e', 's,LNAME,libndctl@0@,g'.format(LIBNDCTL_CURRENT - LIBNDCTL_AGE),
+	   '@INPUT@'
+  ],
+
+  input : sles_spec2,
+  output : 'ndctl.spec',
+  capture : true,
+)