build: support split packaging for buffyboard and unl0kr

CHANGELOG.md

@@ -11,6 +11,7 @@ If a change only affects particular applications, they are listed in parentheses
 ## Unreleased
 
 - misc: Use standard C library instead of builtin functions (!49, thanks @vstoiakin)
+- feat: Add support for split packaging of buffyboard and unl0kr (!54, thanks @vstoiakin)
 
 ## 3.3.0 (2025-04-15)
 

README.md

@@ -54,6 +54,38 @@ On distributions based on systemd, `unl0kr` can be used as a [password agent](ht
 # systemd-ask-password --no-tty # Unl0kr is started
 ```
 
+## Packaging
+
+Create a full package:
+```
+meson setup builddir/
+meson compile -C builddir/
+meson install -C builddir/ --destdir "$pkgdir"
+```
+
+Create separate packages for Buffyboard and Unl0kr:
+```
+meson setup builddir/
+meson compile -C builddir/
+meson install -C builddir/ --tags=unl0kr --destdir "$pkgdir_unl0kr"
+meson install -C builddir/ --tags=buffyboard --destdir "$pkgdir_buffyboard"
+```
+
+Create a package for Unl0kr only:
+```
+meson setup builddir/
+meson compile -C builddir/ unl0kr/unl0kr
+meson compile -C builddir/ unl0kr/unl0kr-agent # on systemd-based distributions
+meson install -C builddir/ --tags=unl0kr --destdir "$pkgdir"
+```
+
+Create a package for Buffyboard only:
+```
+meson setup builddir/
+meson compile -C builddir/ buffyboard/buffyboard
+meson install -C builddir/ --tags=buffyboard --destdir "$pkgdir"
+```
+
 ## Making a release
 
 To make it easier for distributions to package BuffyBox, we include source tarballs including the LVGL submodule in GitLab releases. See [unl0kr#42] for more background on this.

buffyboard/meson.build

@@ -19,25 +19,25 @@ executable('buffyboard',
     include_directories: common_include_dirs,
     sources: buffyboard_sources + shared_sources + squeek2lvgl_sources + lvgl_sources,
     dependencies: buffyboard_dependencies,
-    install: true
+    install: true,
+    install_tag: 'buffyboard'
 )
 
-install_data('buffyboard.conf', install_dir: get_option('sysconfdir'))
+install_data('buffyboard.conf',
+    install_dir: get_option('sysconfdir'),
+    install_tag: 'buffyboard'
+)
 
-systemd = dependency('systemd', required: get_option('systemd-buffyboard-service'))
-if systemd.found()
-    system_unit_dir = systemd.get_variable(
-        pkgconfig: 'systemd_system_unit_dir',
-        pkgconfig_define: ['prefix', get_option('prefix')],
-    )
+depsystemd = dependency('systemd', required: get_option('systemd-buffyboard-service'))
+if depsystemd.found()
+    system_unit_dir = depsystemd.get_variable(pkgconfig: 'systemd_system_unit_dir')
 
     configure_file(
-      input : 'buffyboard.service.in',
-      output : 'buffyboard.service',
-      install : true,
-      install_dir : system_unit_dir,
-      configuration : {
-        'bindir' : get_option('prefix') / get_option('bindir'),
-      },
+        configuration: {'bindir': get_option('prefix') / get_option('bindir')},
+        input: 'buffyboard.service.in',
+        output: 'buffyboard.service',
+        install: true,
+        install_dir: system_unit_dir,
+        install_tag: 'buffyboard'
     )
 endif

man/meson.build

@@ -2,7 +2,24 @@ progscdoc = depscdoc.get_variable(pkgconfig: 'scdoc')
 
 foreach file : [
         'buffyboard.1',
-        'buffyboard.conf.5',
+        'buffyboard.conf.5'
+    ]
+
+    section = file.split('.')[-1]
+
+    custom_target(file,
+        command: progscdoc,
+        feed: true,
+        capture: true,
+        input: file + '.scd',
+        output: file,
+        install: true,
+        install_dir: get_option('mandir') / 'man' + section,
+        install_tag: 'buffyboard'
+    )
+endforeach
+
+foreach file : [
         'unl0kr.1',
         'unl0kr.conf.5'
     ]
@@ -16,6 +33,7 @@ foreach file : [
         input: file + '.scd',
         output: file,
         install: true,
-        install_dir: get_option('mandir') / 'man' + section
+        install_dir: get_option('mandir') / 'man' + section,
+        install_tag: 'unl0kr'
     )
 endforeach

meson.build

@@ -1,7 +1,7 @@
 project('buffybox', 'c',
     version: '3.3.0',
     default_options: ['warning_level=3', 'b_ndebug=if-release'],
-    meson_version: '>= 0.59.0'
+    meson_version: '>= 0.60.0'
 )
 
 add_project_arguments(

unl0kr/meson.build

@@ -30,10 +30,14 @@ executable('unl0kr',
     sources: unl0kr_sources + shared_sources + squeek2lvgl_sources + lvgl_sources,
     dependencies: unl0kr_dependencies,
     c_args: unl0kr_args,
-    install: true
+    install: true,
+    install_tag: 'unl0kr'
 )
 
-install_data('unl0kr.conf', install_dir: get_option('sysconfdir'))
+install_data('unl0kr.conf',
+    install_dir: get_option('sysconfdir'),
+    install_tag: 'unl0kr'
+)
 
 depsystemd = dependency('systemd', required: get_option('systemd-password-agent'))
 if depsystemd.found()
@@ -42,18 +46,23 @@ if depsystemd.found()
         dependencies: depinih,
         c_args: '-DUNL0KR_BINARY="@0@"'.format(get_option('prefix') / get_option('bindir') / 'unl0kr'),
         install: true,
-        install_dir: get_option('libexecdir')
+        install_dir: get_option('libexecdir'),
+        install_tag: 'unl0kr'
     )
 
     system_unit_dir = depsystemd.get_variable(pkgconfig: 'systemd_system_unit_dir')
 
-    install_data('unl0kr-agent.path', install_dir: system_unit_dir)
+    install_data('unl0kr-agent.path',
+        install_dir: system_unit_dir,
+        install_tag: 'unl0kr'
+    )
 
     configure_file(
         configuration: {'LIBEXECDIR': get_option('prefix') / get_option('libexecdir')},
         input: 'unl0kr-agent.service.in',
         output: 'unl0kr-agent.service',
         install: true,
-        install_dir: system_unit_dir
+        install_dir: system_unit_dir,
+        install_tag: 'unl0kr'
     )
 endif