[PATCH] Add Meson build system

[Jonas Ådahl]

FWIW, I did something similar, here:
https://lists.freedesktop.org/archives/wayland-devel/2017-October/035399.html
because I wanted to add build tests. IIRC there is some bug that I only
fixed locally.


Jonas

On Wed, Apr 11, 2018 at 05:27:49PM +0100, Emmanuele Bassi wrote:
> From: Emmanuele Bassi <ebassi at gnome.org>
> 
> Meson is a next generation build system, and various projects in the
> larger Linux ecosystem already moved to it — for instance:
> 
>   - the X11 server
>   - the X11 protocols repository
>   - Mesa
>   - libdrm
> 
> The added benefit for adding Meson support is that projects using Meson
> and depending on wayland-protocols can use the subproject functionality
> to always pull the latest version of the protocols without necessarily
> updating their build environment.
> ---
>  meson.build       | 89 +++++++++++++++++++++++++++++++++++++++++++++++
>  meson_options.txt |  5 +++
>  2 files changed, 94 insertions(+)
>  create mode 100644 meson.build
>  create mode 100644 meson_options.txt
> 
> diff --git a/meson.build b/meson.build
> new file mode 100644
> index 0000000..c078ff3
> --- /dev/null
> +++ b/meson.build
> @@ -0,0 +1,89 @@
> +project('wayland-protocols', 'c',
> +  version: '1.13',
> +  license: 'MIT',
> +  meson_version: '>= 0.45.0',
> +)
> +
> +wayland_scanner_dep = dependency('wayland-scanner', required: false)
> +wayland_scanner_opt = get_option('wayland_scanner')
> +wayland_scanner_bin = ['wayland-scanner']
> +
> +if wayland_scanner_opt != ''
> +  wayland_scanner_bin += wayland_scanner_opt
> +endif
> +
> +if wayland_scanner_dep.found()
> +  wayland_scanner_bin += wayland_scanner_dep.get_pkgconfig_variable('wayland_scanner')
> +endif
> +
> +wayland_scanner = find_program(wayland_scanner_bin)
> +
> +pkgdatadir = join_paths(get_option('datadir'), meson.project_name())
> +
> +protocol_files = []
> +
> +# name, [version, ...]
> +unstable_protocols = [
> +  [ 'pointer-gestures', ['v1',], ],
> +  [ 'fullscreen-shell', ['v1',], ],
> +  [ 'linux-dmabuf', ['v1',], ],
> +  [ 'text-input', ['v1',], ],
> +  [ 'input-method', ['v1',], ],
> +  [ 'xdg-shell', ['v5', 'v6',], ],
> +  [ 'relative-pointer', ['v1',], ],
> +  [ 'pointer-constraints', ['v1',], ],
> +  [ 'tablet', ['v1', 'v2',], ],
> +  [ 'xdg-foreign', ['v1', 'v2',], ],
> +  [ 'idle-inhibit', ['v1',], ],
> +  [ 'xwayland-keyboard-grab', ['v1',], ],
> +  [ 'keyboard-shortcuts-inhibit', ['v1',], ],
> +  [ 'xdg-output', ['v1',], ],
> +  [ 'input-timestamps', ['v1',], ],
> +]
> +
> +foreach p: unstable_protocols
> +  p_name = p[0]
> +  p_versions = p[1]
> +  foreach version: p_versions
> +    xml_file = join_paths('unstable', p_name, '@0 at -unstable-@1 at .xml'.format(p_name, version))
> +    protocol_files += [[p_name, files(xml_file)]]
> +    install_data(xml_file, install_dir: join_paths(pkgdatadir, 'unstable', p_name))
> +  endforeach
> +endforeach
> +
> +stable_protocols = [
> +  'presentation-time',
> +  'viewporter',
> +  'xdg-shell',
> +]
> +
> +foreach p_name: stable_protocols
> +  xml_file = join_paths('stable', p_name, '@0 at .xml'.format(p_name))
> +  protocol_files += [[p_name, files(xml_file)]]
> +  install_data(xml_file, install_dir: join_paths(pkgdatadir, 'stable', p_name))
> +endforeach
> +
> +pkgconfig = import('pkgconfig')
> +pkgconfig.generate(
> +  name: meson.project_name(),
> +  description: 'Wayland protocol files',
> +  version: meson.project_version(),
> +  variables: [
> +    'datarootdir=${prefix}/@0@'.format(get_option('datadir')),
> +    'pkgdatadir=${pc_sysrootdir}${datarootdir}/@0@'.format(meson.project_name()),
> +  ],
> +  install_dir: join_paths(get_option('datadir'), 'pkgconfig'),
> +)
> +
> +scan_test = find_program('tests/scan.sh')
> +foreach p: protocol_files
> +  p_name = p[0]
> +  p_file = p[1]
> +  test('verify ' + p_name,
> +    scan_test,
> +    args: [ p_file, ],
> +    env: [
> +      'SCANNER=@0@'.format(wayland_scanner.path()),
> +    ],
> +  )
> +endforeach
> diff --git a/meson_options.txt b/meson_options.txt
> new file mode 100644
> index 0000000..09a8618
> --- /dev/null
> +++ b/meson_options.txt
> @@ -0,0 +1,5 @@
> +option('wayland_scanner',
> +  description: 'The wayland-scanner binary to use',
> +  type: 'string',
> +  value: ''
> +)
> -- 
> 2.17.0
> 
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