Add bash completion file

fail2ban.spec

@@ -48,6 +48,7 @@ BuildRequires: sqlite
 BuildRequires: systemd
 BuildRequires: selinux-policy-devel
 BuildRequires: make
+BuildRequires: bash-completion
 
 # Default components
 Requires: %{name}-firewalld = %{version}-%{release}
@@ -294,6 +295,10 @@ rm -r %{buildroot}%{_docdir}/%{name}
 install -d %{buildroot}%{_datadir}/selinux/packages/%{selinuxtype}
 install -m 0644 %{modulename}.pp.bz2 %{buildroot}%{_datadir}/selinux/packages/%{selinuxtype}
 
+#BASH completion
+COMPLETIONDIR=%{buildroot}$(pkg-config --variable=completionsdir bash-completion)
+%__mkdir_p $COMPLETIONDIR
+%__install -p -m 644 files/bash-completion $COMPLETIONDIR/fail2ban
 
 %check
 %if 0%{?rhel} && 0%{?rhel} < 8
@@ -348,6 +353,7 @@ fi
 %exclude %{python3_sitelib}/fail2ban/tests
 %endif
 %{_unitdir}/fail2ban.service
+%{_datadir}/bash-completion/
 %{_mandir}/man1/fail2ban.1*
 %{_mandir}/man1/fail2ban-client.1*
 %{_mandir}/man1/fail2ban-python.1*