[tracker: 1/2] Meson build option: Added introspection The --disable-introspection was lost during the Meson port a

[Sam Thursfield <sthursfield src gnome org>]

commit dc85742039f478dde9274983db7fb830cd44d061
Author: nitinosiris <nitinwartkar58 gmail com>
Date:   Wed May 5 15:33:37 2021 +0530

    Meson build option: Added introspection
    The --disable-introspection was lost during the Meson port
    and but can be useful to shave off some build time for
    Flatpaks written in non-introspected languages.
    Fixes: https://gitlab.gnome.org/GNOME/tracker/-/issues/37

 meson.build                       |  6 ++++--
 meson_options.txt                 |  2 ++
 src/libtracker-sparql/meson.build | 33 +++++++++++++++++----------------
 3 files changed, 23 insertions(+), 18 deletions(-)
---
diff --git a/meson.build b/meson.build
index 43935b803..90dc2cc7e 100644
--- a/meson.build
+++ b/meson.build
@@ -43,7 +43,7 @@ gio_unix = dependency('gio-unix-2.0', version: '>' + glib_required)
 glib = dependency('glib-2.0', version: '>' + glib_required)
 gmodule = dependency('gmodule-2.0', version: '>' + glib_required)
 gobject = dependency('gobject-2.0', version: '>' + glib_required)
-gobject_introspection = dependency('gobject-introspection-1.0')
+gobject_introspection = dependency('gobject-introspection-1.0', required: get_option('introspection'))
 icu_i18n = dependency('icu-i18n', version: '> 4.8.1.1', required: false)
 icu_uc = dependency('icu-uc', version: '> 4.8.1.1', required: false)
 json_glib = dependency('json-glib-1.0', version: '>= 1.4', required: true)
@@ -312,8 +312,10 @@ tracker_ontologies_dir = join_paths(get_option('prefix'), get_option('datadir'),
 
 vapi_dir = join_paths(get_option('prefix'), get_option('datadir'), 'vala', 'vapi')
 
-typelib_dir = gobject_introspection.get_pkgconfig_variable('typelibdir',
+if gobject_introspection.found()
+  typelib_dir = gobject_introspection.get_pkgconfig_variable('typelibdir',
                                                            define_variable:  [ 'libdir', libdir ])
+endif
 
 subdir('src')
 subdir('docs')
diff --git a/meson_options.txt b/meson_options.txt
index 46e9c130f..a5cccb891 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -28,3 +28,5 @@ option('tests_tap_protocol', type: 'boolean', value: false,
        description: 'Whether to enable TAP protocol on tests')
 option('soup2', type: 'boolean', value: true,
        description: 'Whether to build with libsoup2')
+option('introspection', type: 'feature', value: 'enabled',
+       description: 'Whether to enable introspection')
\ No newline at end of file
diff --git a/src/libtracker-sparql/meson.build b/src/libtracker-sparql/meson.build
index 570f4b83b..8b164dfcf 100644
--- a/src/libtracker-sparql/meson.build
+++ b/src/libtracker-sparql/meson.build
@@ -136,20 +136,21 @@ pkg.generate(libtracker_sparql,
     ],
 )
 
-tracker_sparql_gir = gnome.generate_gir(libtracker_sparql,
-    sources: libtracker_sparql_c_sources + libtracker_sparql_c_public_headers,
-    nsversion: tracker_api_version,
-    namespace: 'Tracker',
-    identifier_prefix: 'Tracker',
-    symbol_prefix: 'tracker',
-    includes : ['GLib-2.0', 'GObject-2.0', 'Gio-2.0' ],
-    link_with: libtracker_sparql,
-    install: true,
-    extra_args: [
-        '--c-include',
-        'libtracker-sparql/tracker-sparql.h',
-        '-DTRACKER_COMPILATION',
-    ],
-    export_packages: 'tracker-sparql-3.0')
-
+if get_option('introspection').enabled()
+    tracker_sparql_gir = gnome.generate_gir(libtracker_sparql,
+        sources: libtracker_sparql_c_sources + libtracker_sparql_c_public_headers,
+        nsversion: tracker_api_version,
+        namespace: 'Tracker',
+        identifier_prefix: 'Tracker',
+        symbol_prefix: 'tracker',
+        includes : ['GLib-2.0', 'GObject-2.0', 'Gio-2.0' ],
+        link_with: libtracker_sparql,
+        install: true,
+        extra_args: [
+            '--c-include',
+            'libtracker-sparql/tracker-sparql.h',
+            '-DTRACKER_COMPILATION',
+        ],
+        export_packages: 'tracker-sparql-3.0')
+endif
 tracker_sparql_uninstalled_dir = meson.current_build_dir()