!1 Add source code.

From: @dwl301
Reviewed-by: @zhang__3125,@dillon_chen
Signed-off-by: @dillon_chen

libportal.spec

@@ -0,0 +1,69 @@
+Name:           libportal
+Version:        0.3
+Release:        1
+Summary:        Flatpak portal library
+License:        LGPLv2+
+Url:            https://github.com/flatpak/libportal
+Source:         https://github.com/flatpak/libportal/releases/download/0.3/libportal-0.3.tar.xz
+
+BuildRequires:  glibc-devel gcc
+BuildRequires:  meson
+BuildRequires:  git
+BuildRequires:  pkgconfig(gio-2.0)
+BuildRequires:  pkgconfig(gio-unix-2.0)
+BuildRequires:  gtk-doc
+# For doc links
+#BuildRequires:  pipewire-doc
+
+%description
+libportal provides GIO-style asynchronous APIs for most Flatpak portals.
+
+%package devel
+Summary: Development files and libraries for %name
+Group: Development/C
+Requires: %{name} = %{version}-%{release}
+
+%description devel
+%name provides GIO-style asynchronous APIs for most Flatpak portals.
+
+This package provides files for development with %name.
+
+%package devel-doc
+Summary: Development documentation for libportal
+Group: Development/C
+BuildArch: noarch
+
+%description devel-doc
+libportal provides GIO-style asynchronous APIs for most Flatpak portals.
+
+This package provides development documentations for libportal.
+
+%prep
+%autosetup -S git
+
+%build
+%meson
+%meson_build
+
+%install
+%meson_install
+
+%check
+%meson_test
+
+%files
+%{_libdir}/libportal.so.0*
+%doc README* COPYING
+
+%files devel
+%{_includedir}/libportal
+%{_libdir}/libportal.so
+%{_libdir}/pkgconfig/libportal.pc
+
+%files devel-doc
+%{_datadir}/gtk-doc/html/libportal
+
+%changelog
+* Thu Jun 24 2021 Wenlong Ding <wenlong.ding@turbolinux.com.cn> - 0.3-1
+- Init package.
+

libportal.yaml

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+version_control: git
+src_repo: https://github.com/flatpak/libportal.git
+tag_prefix: 
+seperator: .