nma/mobile-providers: also use the data file locations from pc files

If a distribution lacks global datadir (e.g. NixOS), libnma would not
be able to find mobile-data-provider-info and isocodes without user
having to add them to XDG_DATA_DIRS manually.

This patch allows falling back to the paths provided by pkg-config
files of the data packages, making it work on more exotic platforms.

Closes: https://gitlab.gnome.org/GNOME/network-manager-applet/issues/14

6 files changed, 52 insertions, 0 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f2eb6f7f..fb656eb9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -43,6 +43,7 @@
       gobject-introspection-devel redhat-rpm-config
       gtk-doc
       iso-codes-devel
+      mobile-broadband-provider-info-devel
       jansson-devel
       ModemManager-glib-devel
       libselinux-devel
@@ -66,6 +67,7 @@
       -Dteam=false
       -Dgcr=false
       -Diso_codes=false
+      -Dmobile_broadband_provider_info=false
       -Dld_gc=false
       -Dgtk_doc=false
       -Dintrospection=false
@@ -90,6 +92,7 @@
       -Dteam=true
       -Dgcr=true
       -Diso_codes=true
+      -Dmobile_broadband_provider_info=true
       -Dld_gc=true
       -Dgtk_doc=true
       -Dintrospection=true
@@ -114,6 +117,7 @@
       --without-libnm-gtk
       --disable-nls
       --disable-iso-codes
+      --disable-mobile-broadband-provider-info
       --disable-gtk-doc
       --disable-introspection
       --disable-schemas-compile
@@ -141,6 +145,7 @@
       --without-libnm-gtk
       --enable-nls
       --enable-iso-codes
+      --enable-mobile-broadband-provider-info
       --enable-gtk-doc
       --enable-introspection
       --enable-schemas-compile
diff --git a/config.h.meson b/config.h.meson
index 8e566348..c3ca560e 100644
--- a/config.h.meson
+++ b/config.h.meson
@@ -7,6 +7,9 @@
 /* ISO codes prefix */
 #mesondefine ISO_CODES_PREFIX
 
+/* Mobile Broadband Service Provider Information Database location */
+#mesondefine MOBILE_BROADBAND_PROVIDER_INFO_DATABASE
+
 /* Define if more asserts are enabled */
 #mesondefine NM_MORE_ASSERTS
 
diff --git a/configure.ac b/configure.ac
index 5f0f16e1..2c4aebe3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -97,6 +97,29 @@ else
     AC_DEFINE_UNQUOTED([ISO_CODES_PREFIX],["$prefix"],[ISO codes prefix])
 fi
 
+# Check for mobile-broadband-provider-info for Mobile Broadband wizard
+AC_MSG_CHECKING([whether to disable mobile-broadband-provider-info at build-time])
+AC_ARG_ENABLE([mobile-broadband-provider-info],
+    AS_HELP_STRING([--disable-mobile-broadband-provider-info],[do not check for mobile-broadband-provider-info at build-time]),
+    [],[disable_mobile_broadband_provider_info_check=no])
+if test x$disable_mobile_broadband_provider_info_check = xno ; then
+    AC_MSG_RESULT([no])
+else
+    AC_MSG_RESULT([yes])
+fi
+
+if test x$disable_mobile_broadband_provider_info_check = "xno" ; then
+    AC_DEFINE_UNQUOTED([MOBILE_BROADBAND_PROVIDER_INFO_DATABASE],["`$PKG_CONFIG --variable=database mobile-broadband-provider-info`"],[Mobile Broadband Service Provider Information Database location])
+    PKG_CHECK_MODULES(MOBILE_BROADBAND_PROVIDER_INFO, [mobile-broadband-provider-info],
+        [],
+        [echo -e "\n$MOBILE_BROADBAND_PROVIDER_INFO_PKG_ERRORS.\n"
+         echo "Consider installing the package or adjusting the PKG_CONFIG_PATH environment variable."
+         echo "You can also disable build-time check for 'mobile-broadband-provider-info' via --disable-mobile-broadband-provider-info";
+         exit 1;])
+else
+    AC_DEFINE_UNQUOTED([MOBILE_BROADBAND_PROVIDER_INFO_DATABASE],["$prefix/share/mobile-broadband-provider-info/serviceproviders.xml"],[Mobile Broadband Service Provider Information Database location])
+fi
+
 dnl
 dnl API documentation
 dnl
diff --git a/meson.build b/meson.build
index c78b03b0..4096b06d 100644
--- a/meson.build
+++ b/meson.build
@@ -130,6 +130,16 @@ else
   config_h.set_quoted('ISO_CODES_PREFIX', nma_prefix)
 endif
 
+# Check for mobile-broadband-provider-info for Mobile Broadband wizard
+enable_mobile_broadband_provider_info = get_option('mobile_broadband_provider_info')
+message('whether to enable mobile-broadband-provider-info at build-time: ' + enable_mobile_broadband_provider_info.to_string())
+if enable_mobile_broadband_provider_info
+  mobile_broadband_provider_info_dep = dependency('mobile-broadband-provider-info')
+  config_h.set_quoted('MOBILE_BROADBAND_PROVIDER_INFO_DATABASE', mobile_broadband_provider_info_dep.get_pkgconfig_variable('database'))
+else
+  config_h.set_quoted('MOBILE_BROADBAND_PROVIDER_INFO_DATABASE', join_paths(nma_prefix, 'share', 'mobile-broadband-provider-info', 'serviceproviders.xml'))
+endif
+
 gio_dep = dependency('gio-2.0', version: '>= 2.38')
 gmodule_export_dep = dependency('gmodule-export-2.0')
 libsecret_dep = dependency('libsecret-1', version: '>= 0.18')
diff --git a/meson_options.txt b/meson_options.txt
index 0ea708cb..42240429 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -6,6 +6,7 @@ option('team', type: 'boolean', value: true, description: 'Enable team configura
 option('gcr', type: 'boolean', value: true, description: 'Enable advanced certificate chooser.')
 option('more_asserts', type: 'string', value: '0', description: 'Enable more assertions for debugging.')
 option('iso_codes', type: 'boolean', value: true, description: 'check for iso-codes at build-time')
+option('mobile_broadband_provider_info', type: 'boolean', value: true, description: 'check for mobile-broadband-provider-info at build-time')
 option('ld_gc', type: 'boolean', value: true, description: 'Enable garbage collection of unused symbols on linking')
 option('gtk_doc', type: 'boolean', value: true, description: 'use gtk-doc to build documentation')
 option('introspection', type: 'boolean', value: true, description: 'Enable introspection for this build')
diff --git a/src/libnma/nma-mobile-providers.c b/src/libnma/nma-mobile-providers.c
index abe77c18..dffcdf61 100644
--- a/src/libnma/nma-mobile-providers.c
+++ b/src/libnma/nma-mobile-providers.c
@@ -1017,6 +1017,12 @@ mobile_providers_parse_sync (const gchar *country_codes,
 		}
 
 		if (!success) {
+			path = g_build_filename (ISO_CODES_PREFIX, "share", ISO_3166_COUNTRY_CODES, NULL);
+			success = read_country_codes (countries, path, cancellable, NULL);
+			g_free (path);
+		}
+
+		if (!success) {
 			g_warning ("Could not find the country codes file (%s): check your installation\n",
 			           ISO_3166_COUNTRY_CODES);
 		}
@@ -1041,6 +1047,10 @@ mobile_providers_parse_sync (const gchar *country_codes,
 		}
 
 		if (!success) {
+			success = read_service_providers (countries, MOBILE_BROADBAND_PROVIDER_INFO_DATABASE, cancellable, NULL);
+		}
+
+		if (!success) {
 			g_warning ("Could not find the provider data (%s): check your installation\n",
 			           MOBILE_BROADBAND_PROVIDER_INFO);
 		}