From df628f26aa6dc05b2911abd6d62562695f8424ad Mon Sep 17 00:00:00 2001
From: Christian Kellner <christian@kellner.me>
Date: Tue, 8 Sep 2020 16:58:06 +0200
Subject: [PATCH] Support for generating rpms via meson

Add a meson script that can be used to create rpms from the source
tree. It can also be used to install the plugins.
---
 koji-osbuild.spec.in | 68 +++++++++++++++++++++++++++++++
 meson.build          | 95 ++++++++++++++++++++++++++++++++++++++++++++
 meson_options.txt    |  4 ++
 3 files changed, 167 insertions(+)
 create mode 100644 koji-osbuild.spec.in
 create mode 100644 meson.build
 create mode 100644 meson_options.txt

diff --git a/koji-osbuild.spec.in b/koji-osbuild.spec.in
new file mode 100644
index 0000000..48c7a3b
--- /dev/null
+++ b/koji-osbuild.spec.in
@@ -0,0 +1,68 @@
+%global         commit @commit@
+%global         forgeurl https://github.com/gicmo/koji-osbuild
+
+Name:           koji-osbuild
+Version:        @version@
+Release:        0%{?dist}
+Summary:        Koji integration for osbuild composer
+
+%forgemeta
+
+License:        ASL 2.0
+URL:            %{forgeurl}
+Source0:        %{forgesource}
+
+BuildArch:      noarch
+BuildRequires:  python%{python3_pkgversion}-devel
+BuildRequires:  python%{python3_pkgversion}dist(setuptools)
+
+%description
+Koji integration for osbuild composer.
+
+%package        hub
+Summary:        Koji hub plugin for osbuild composer integration
+Requires:       %{name} = %{version}-%{release}
+Requires:       koji-hub
+
+%description    hub
+Koji hub plugin for osbuild composer integration.
+
+%package        builder
+Summary:        Koji hub plugin for osbuild composer integration
+Requires:       %{name} = %{version}-%{release}
+Requires:       koji-builder
+
+%description    builder
+Koji builder plugin for osbuild composer integration.
+
+
+%prep
+%forgesetup
+
+%build
+# no op
+
+%install
+install -d %{buildroot}/%{_prefix}/lib/koji-hub-plugins
+install -p -m 0755 plugins/hub/osbuild.py %{buildroot}/%{_prefix}/lib/koji-hub-plugins/
+%py_byte_compile %{__python3} %{buildroot}/%{_prefix}/lib/koji-hub-plugins/osbuild.py
+
+install -d %{buildroot}/%{_prefix}/lib/koji-builder-plugins
+install -p -m 0755 plugins/builder/osbuild.py %{buildroot}/%{_prefix}/lib/koji-builder-plugins/
+%py_byte_compile %{__python3} %{buildroot}/%{_prefix}/lib/koji-builder-plugins/osbuild.py
+
+%files
+%license LICENSE
+%doc README.md
+
+%files hub
+%pycached %{_prefix}/lib/koji-hub-plugins/osbuild.py
+
+
+%files builder
+%pycached %{_prefix}/lib/koji-builder-plugins/osbuild.py
+
+
+%changelog
+* @longdate@ osbuild <osbuilders@osbuild.org> - @version@-@reltag@
+- build from git sources.
diff --git a/meson.build b/meson.build
new file mode 100644
index 0000000..75bcaa6
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,95 @@
+project('koji-osbuild', license: 'ASL 2.0', version: '1')
+
+srcdir = meson.source_root()
+
+hub_plugins_path = get_option('hub-plugins-path')
+builder_plugins_path = get_option('builder-plugins-path')
+
+install_data(
+  'plugins/hub/osbuild.py',
+  install_dir: hub_plugins_path,
+)
+
+install_data(
+  'plugins/builder/osbuild.py',
+  install_dir: builder_plugins_path
+)
+
+git = find_program('git')
+
+subs = configuration_data()
+subs.set('version', meson.project_version())
+
+longdate = run_command('date', '+%a %b %d %Y').stdout().strip()
+subs.set('longdate', longdate)
+
+gitres = run_command(git, ['--git-dir=@0@/.git'.format(srcdir),
+                           'rev-parse',
+                           '--short=7',
+                           'HEAD'])
+
+if gitres.returncode() == 0
+  commit = gitres.stdout().strip()
+  subs.set('commit', commit)
+
+  gitrev = gitres.stdout().strip()
+  gitdate = run_command('date', '+%Y%m%d').stdout().strip()
+  # YYYYMMDD<scm><revision>
+  subs.set('reltag', '@0@git@1@'.format(gitdate, gitrev))
+endif
+
+spec_file = configure_file(
+  input: 'koji-osbuild.spec.in',
+  output: 'koji-osbuild.spec',
+  configuration: subs
+)
+
+archive_name = meson.project_name() + '-' + gitrev
+full_archive_name = archive_name + '.tar.gz'
+archive = custom_target(
+  'tarball',
+  command: [
+    git,
+    '-C', meson.source_root(),
+    'archive',
+    '-o', join_paths(meson.build_root(), full_archive_name),
+    '--prefix', archive_name + '/',
+    commit
+  ],
+  output: full_archive_name,
+)
+
+mkdir = find_program('mkdir')
+rpmdirs_target = custom_target(
+  'rpmdirs',
+  command: [
+    mkdir, '-p',
+    'rpmbuild/BUILD',
+    'rpmbuild/RPMS',
+    'rpmbuild/SPECS',
+    'rpmbuild/SRPMS'],
+  output: 'rpmbuild',
+)
+
+rpmbuild = find_program('rpmbuild', required: false)
+
+rpm_target = custom_target(
+  'rpm',
+  command: [
+    rpmbuild, '-ba',
+    spec_file,
+    '--define', '_sourcedir ' + meson.build_root(),
+    '--define', '_topdir ' + rpmdirs_target.full_path()
+  ],
+  output: 'rpms',
+  depends: [archive]
+)
+
+msg = ['',
+  'version:               @0@'.format(meson.project_version()),
+  '',
+  'hub plugins path:      @0@'.format(hub_plugins_path),
+  'builder plugins path:  @0@'.format(builder_plugins_path),
+  '',
+]
+message('\n  '.join(msg))
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..5e9067d
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1,4 @@
+option('hub-plugins-path', type: 'string', value: '/usr/lib/koji-hub-plugins',
+       description: 'Path for koji hub plugins')
+option('builder-plugins-path', type: 'string', value: '/usr/lib/koji-builder-plugins',
+       description: 'Path for koji builder plugins')