modules/gnome: Allow to generate markdown and reStructuredText dbus doc

gdbus-docgen supports reStructuredText output since 2.71.1 and markdown
since 2.75.2, allow to simply generate it.

4 files changed, 89 insertions, 3 deletions

diff --git a/docs/markdown/Gnome-module.md b/docs/markdown/Gnome-module.md
index e8953efc9..84bcc6172 100644
--- a/docs/markdown/Gnome-module.md
+++ b/docs/markdown/Gnome-module.md
@@ -280,6 +280,8 @@ one XML file.
 * `object_manager`: *(Added 0.40.0)* if true generates object manager code
 * `annotations`: *(Added 0.43.0)* list of lists of 3 strings for the annotation for `'ELEMENT', 'KEY', 'VALUE'`
 * `docbook`: *(Added 0.43.0)* prefix to generate `'PREFIX'-NAME.xml` docbooks
+* `rst`: *(Added 1.9.0)* prefix to generate `'PREFIX'-NAME.rst` reStructuredTexts
+* `markdown`: *(Added 1.9.0)* prefix to generate `'PREFIX'-NAME.md` markdowns
 * `build_by_default`: causes, when set to true, to have this target be
   built by default, that is, when invoking plain `meson compile`, the default
   value is true for all built target types
@@ -289,8 +291,9 @@ one XML file.
 
 Starting *0.46.0*, this function returns a list of at least two custom
 targets (in order): one for the source code and one for the header.
-The list will contain a third custom target for the generated docbook
-files if that keyword argument is passed.
+The list can then contain other custom targets for the generated documentation
+files depending if the keyword argument is passed (in order): the docbook
+target, the reStructuredText target and the markdown target.
 
 Earlier versions return a single custom target representing all the
 outputs. Generally, you should just add this list of targets to a top
diff --git a/mesonbuild/modules/gnome.py b/mesonbuild/modules/gnome.py
index 3edf07062..17826c7d0 100644
--- a/mesonbuild/modules/gnome.py
+++ b/mesonbuild/modules/gnome.py
@@ -137,6 +137,8 @@ if T.TYPE_CHECKING:
         install_header: bool
         install_dir: T.Optional[str]
         docbook: T.Optional[str]
+        rst: T.Optional[str]
+        markdown: T.Optional[str]
         autocleanup: Literal['all', 'none', 'objects', 'default']
 
     class GenMarshal(TypedDict):
@@ -1619,6 +1621,8 @@ class GnomeModule(ExtensionModule):
         ),
         KwargInfo('install_header', bool, default=False, since='0.46.0'),
         KwargInfo('docbook', (str, NoneType)),
+        KwargInfo('rst', (str, NoneType), since='1.9.0'),
+        KwargInfo('markdown', (str, NoneType), since='1.9.0'),
         KwargInfo(
             'autocleanup', str, default='default', since='0.47.0',
             validator=in_set_validator({'all', 'none', 'objects'})),
@@ -1675,6 +1679,26 @@ class GnomeModule(ExtensionModule):
 
                 cmd += ['--generate-docbook', docbook]
 
+            if kwargs['rst'] is not None:
+                if not mesonlib.version_compare(glib_version, '>= 2.71.1'):
+                    mlog.error(f'Glib version ({glib_version}) is too old to '
+                               'support the \'rst\' kwarg, need 2.71.1 or '
+                               'newer')
+
+                rst = kwargs['rst']
+
+                cmd += ['--generate-rst', rst]
+
+            if kwargs['markdown'] is not None:
+                if not mesonlib.version_compare(glib_version, '>= 2.75.2'):
+                    mlog.error(f'Glib version ({glib_version}) is too old to '
+                               'support the \'markdown\' kwarg, need 2.75.2 '
+                               'or newer')
+
+                markdown = kwargs['markdown']
+
+                cmd += ['--generate-md', markdown]
+
             # https://git.gnome.org/browse/glib/commit/?id=ee09bb704fe9ccb24d92dd86696a0e6bb8f0dc1a
             if mesonlib.version_compare(glib_version, '>= 2.51.3'):
                 cmd += ['--output-directory', '@OUTDIR@', '--generate-c-code', namebase, '@INPUT@']
@@ -1750,6 +1774,48 @@ class GnomeModule(ExtensionModule):
             )
             targets.append(docbook_custom_target)
 
+        if kwargs['rst'] is not None:
+            rst = kwargs['rst']
+            # The rst output is always ${rst}-${name_of_xml_file}
+            output = namebase + '-rst'
+            outputs = []
+            for f in xml_files:
+                outputs.append('{}-{}'.format(rst, os.path.basename(str(f))))
+
+            rst_custom_target = CustomTarget(
+                output,
+                state.subdir,
+                state.subproject,
+                state.environment,
+                cmd + ['--output-directory', '@OUTDIR@', '--generate-rst', rst, '@INPUT@'],
+                xml_files,
+                outputs,
+                build_by_default=build_by_default,
+                description='Generating gdbus reStructuredText {}',
+            )
+            targets.append(rst_custom_target)
+
+        if kwargs['markdown'] is not None:
+            markdown = kwargs['markdown']
+            # The markdown output is always ${markdown}-${name_of_xml_file}
+            output = namebase + '-markdown'
+            outputs = []
+            for f in xml_files:
+                outputs.append('{}-{}'.format(markdown, os.path.basename(str(f))))
+
+            markdown_custom_target = CustomTarget(
+                output,
+                state.subdir,
+                state.subproject,
+                state.environment,
+                cmd + ['--output-directory', '@OUTDIR@', '--generate-md', markdown, '@INPUT@'],
+                xml_files,
+                outputs,
+                build_by_default=build_by_default,
+                description='Generating gdbus markdown {}',
+            )
+            targets.append(markdown_custom_target)
+
         return ModuleReturnValue(targets, targets)
 
     @typed_pos_args('gnome.mkenums', str)
diff --git a/test cases/frameworks/7 gnome/gdbus/meson.build b/test cases/frameworks/7 gnome/gdbus/meson.build
index fdb3896ca..22896e08c 100644
--- a/test cases/frameworks/7 gnome/gdbus/meson.build
+++ b/test cases/frameworks/7 gnome/gdbus/meson.build
@@ -52,6 +52,23 @@ assert(gdbus_src.length() == 3, 'expected 3 targets')
 assert(gdbus_src[0].full_path().endswith('.c'), 'expected 1 c source file')
 assert(gdbus_src[1].full_path().endswith('.h'), 'expected 1 c header file')
 
+if not pretend_glib_old and glib.version().version_compare('>=2.75.2')
+  gdbus_src_docs = gnome.gdbus_codegen('generated-gdbus-docs',
+    sources : files('data/com.example.Sample.xml'),
+    interface_prefix : 'com.example.',
+    namespace : 'Sample',
+    docbook : 'generated-gdbus-docs-doc',
+    rst : 'generated-gdbus-docs-rst',
+    markdown : 'generated-gdbus-docs-md',
+  )
+  assert(gdbus_src_docs.length() == 5, 'expected 5 targets')
+  assert(gdbus_src_docs[0].full_path().endswith('.c'), 'expected 1 c source file')
+  assert(gdbus_src_docs[1].full_path().endswith('.h'), 'expected 1 c header file')
+  assert('generated-gdbus-docs-doc' in gdbus_src_docs[2].full_path(), 'expected 1 docbook file')
+  assert('generated-gdbus-docs-rst' in gdbus_src_docs[3].full_path(), 'expected 1 reStructuredText file')
+  assert('generated-gdbus-docs-md' in gdbus_src_docs[4].full_path(), 'expected 1 markdown file')
+endif
+
 if not pretend_glib_old and glib.version().version_compare('>=2.51.3')
   includes = []
 else
diff --git a/test cases/frameworks/7 gnome/meson.build b/test cases/frameworks/7 gnome/meson.build
index f75ca93a1..37934b77a 100644
--- a/test cases/frameworks/7 gnome/meson.build
+++ b/test cases/frameworks/7 gnome/meson.build
@@ -1,4 +1,4 @@
-project('gobject-introspection', 'c', meson_version: '>= 1.2.0')
+project('gobject-introspection', 'c', meson_version: '>= 1.9.0')
 
 copyfile = find_program('copyfile.py')
 copyfile_gen = generator(copyfile,