gstreamer/subprojects/gst-plugins-good/docs/meson.build
Tim-Philipp Müller 95eca6d919 meson: bail out earlier in docs subdir if docs are disabled
The gst_dep.get_variable('libexecdir') may fail in some scenarios
(e.g. building a module alone inside an uninstalled devenv) and
it shouldn't really be reached in the first place if docs are
disabled via options.

Also to avoid confusing meson messages when cross-compiling or
doing a static build.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7818>
2024-11-04 19:14:10 +00:00

116 lines
3.7 KiB
Meson

build_hotdoc = false
if get_option('doc').disabled()
subdir_done()
endif
if static_build
if get_option('doc').enabled()
error('Documentation enabled but not supported when building statically.')
endif
message('Building statically, can\'t build the documentation')
subdir_done()
endif
if meson.is_cross_build()
if get_option('doc').enabled()
error('Documentation enabled but building the doc while cross building is not supported yet.')
endif
message('Documentation not built as building it while cross building is not supported yet.')
subdir_done()
endif
required_hotdoc_extensions = ['gst-extension']
if gst_dep.type_name() == 'internal'
gst_proj = subproject('gstreamer')
plugins_cache_generator = gst_proj.get_variable('plugins_cache_generator')
else
plugins_cache_generator = find_program(join_paths(gst_dep.get_variable('libexecdir'), 'gstreamer-' + api_version, 'gst-plugins-doc-cache-generator'),
required: false)
endif
plugins_cache = join_paths(meson.current_source_dir(), 'gst_plugins_cache.json')
if plugins.length() == 0
message('All good plugins have been disabled')
elif plugins_cache_generator.found()
gst_plugins_doc_dep = custom_target('good-plugins-doc-cache',
command: [plugins_cache_generator, plugins_cache, '@OUTPUT@', '@INPUT@'],
input: plugins,
output: 'gst_plugins_cache.json',
build_always_stale: true,
)
else
warning('GStreamer plugin inspector for documentation not found, can\'t update the cache')
endif
hotdoc_p = find_program('hotdoc', required: get_option('doc'))
if not hotdoc_p.found()
message('Hotdoc not found, not building the documentation')
subdir_done()
endif
hotdoc_req = '>= 0.11.0'
hotdoc_version = run_command(hotdoc_p, '--version', check: false).stdout()
if not hotdoc_version.version_compare(hotdoc_req)
if get_option('doc').enabled()
error('Hotdoc version @0@ not found, got @1@'.format(hotdoc_req, hotdoc_version))
else
message('Hotdoc version @0@ not found, got @1@'.format(hotdoc_req, hotdoc_version))
subdir_done()
endif
endif
hotdoc = import('hotdoc')
foreach extension: required_hotdoc_extensions
if not hotdoc.has_extensions(extension)
if get_option('doc').enabled()
error('Documentation enabled but @0@ missing'.format(extension))
endif
message('@0@ extension not found, not building documentation'.format(extension))
subdir_done()
endif
endforeach
docconf = configuration_data()
docconf.set('GST_API_VERSION', api_version)
configure_file(input : 'gst_api_version.in',
output : 'gst_api_version.md',
configuration : docconf)
libs_doc = []
plugins_doc = []
excludes = []
build_hotdoc = true
foreach f: ['gstgdkpixbufplugin.c']
excludes += [join_paths(meson.current_source_dir(), '..', 'ext/gdk_pixbuf/', f)]
endforeach
excludes += [join_paths(meson.current_source_dir(), '..', 'sys', 'rpicamsrc', 'Raspi*.[ch]')]
cdir = meson.current_source_dir()
if host_machine.system() == 'windows'
pathsep = ';'
else
pathsep = ':'
endif
gst_plugins_doc = run_command(
plugins_cache_generator,
'hotdoc-config',
'--builddir', meson.current_build_dir(),
'--project_version', api_version,
'--sitemap', cdir / 'sitemap.txt',
'--index', cdir / 'index.md',
'--gst_index', cdir / 'index.md',
'--gst_c_sources',
cdir / '../sys/*/*.[cmh]',
cdir / '../ext/*/*.[ch]',
cdir / '../ext/*/*/*.[ch]',
cdir / '../gst/*/*.[ch]',
cdir / '../ext/*/*.cc',
'--gst_c_source_filters', excludes,
'--gst_cache_file', plugins_cache,
'--include_paths', cdir / '..',
check: true,
).stdout().split(pathsep)