From e667a83369b018b741f38068db7989af75ea296d Mon Sep 17 00:00:00 2001
From: GenZmeY <genzmey@gmail.com>
Date: Thu, 13 Aug 2020 05:44:02 +0300
Subject: [PATCH] feat: bash completion

---
 SOURCES/Makefile                     |  6 ++
 SOURCES/main/bash_completion/kf2-srv | 98 ++++++++++++++++++++++++++++
 SOURCES/main/kf2-srv                 | 11 ++++
 SPECS/kf2-srv.spec                   |  9 ++-
 4 files changed, 122 insertions(+), 2 deletions(-)
 create mode 100644 SOURCES/main/bash_completion/kf2-srv

diff --git a/SOURCES/Makefile b/SOURCES/Makefile
index 5dbad2a..897b1d8 100644
--- a/SOURCES/Makefile
+++ b/SOURCES/Makefile
@@ -27,6 +27,7 @@ PREFIX          = /usr/local
 MAINLOGDIR      = $(DESTDIR)/var/log/$(NAME)
 BETALOGDIR      = $(DESTDIR)/var/log/$(NAME)-beta
 CONFDIR         = $(DESTDIR)/etc/$(NAME)
+BASHCOMPDIR     = $(DESTDIR)/etc/bash_completion.d
 INSTMAINDIR     = $(CONFDIR)/instances
 INSTBETADIR     = $(CONFDIR)/instances-beta
 MAPCYCLEDIR     = $(CONFDIR)/mapcycles
@@ -88,6 +89,7 @@ filesystem:
 	test -d '$(RSYSLOGDIR)'   || install -m 755 -d '$(RSYSLOGDIR)'
 	test -d '$(SCRIPTGRPDIR)' || install -m 755 -d '$(SCRIPTGRPDIR)'
 	test -d '$(SCRIPTLIBDIR)' || install -m 755 -d '$(SCRIPTLIBDIR)'
+	test -d '$(BASHCOMPDIR)'  || install -m 755 -d '$(BASHCOMPDIR)'
 
 install: filesystem build
 	install -m 755 $(RELEASEDIR)/main/$(NAME)                                  $(BINDIR)
@@ -128,6 +130,8 @@ install: filesystem build
 	install -m 644 $(RELEASEDIR)/config/$(NAME).conf                           $(CONFDIR)
 	
 	install -m 644 $(SOURCEDIR)/COPYING                                        $(LICENSEDIR)
+	
+	install -m 644 $(RELEASEDIR)/main/bash_completion/$(NAME)                  $(BASHCOMPDIR)
 
 uninstall:
 	rm -f  $(BINDIR)/$(NAME)
@@ -201,6 +205,8 @@ test: fake-systemd-build
 	$(BASHCHECK)      $(RELEASEDIR)/main/lib/playerids.lib
 	$(BASHCHECK)      $(RELEASEDIR)/main/lib/webadmin.lib
 	$(BASHCHECK)      $(RELEASEDIR)/main/lib/workshop.lib
+	
+	$(BASHCHECK)      $(RELEASEDIR)/main/bash_completion/$(NAME)
 
 clean:
 	rm -rf $(RELEASEDIR)
diff --git a/SOURCES/main/bash_completion/kf2-srv b/SOURCES/main/bash_completion/kf2-srv
new file mode 100644
index 0000000..15f88bd
--- /dev/null
+++ b/SOURCES/main/bash_completion/kf2-srv
@@ -0,0 +1,98 @@
+#!/bin/bash
+
+# kf2-srv is a command line tool for managing a set of Killing Floor 2 servers.
+# Copyright (C) 2019, 2020 GenZmeY
+# mailto: genzmey@gmail.com
+# 
+# This file is part of kf2-srv.
+#
+# kf2-srv is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+function _kf2_srv_completions () # $1: BetaPostfix
+{
+	local GrpDir=":DEFINE_PREFIX:/share/kf2-srv/cmdgrp"
+	local InsDir="/etc/kf2-srv/instances${BetaPostfix}"
+	local KF2Srv=":DEFINE_PREFIX:/bin/kf2-srv${BetaPostfix}"
+	
+	function groups_list ()
+	{
+		find "$GrpDir"       \
+			-mindepth 1      \
+			-maxdepth 1      \
+			-type d          \
+			-printf "%f\n"
+	}
+
+	function commands_list () # $1: Command group
+	{
+		find "$GrpDir/$1"    \
+			-mindepth 1      \
+			-maxdepth 1      \
+			-type f          \
+			-printf "%f\n"
+	}
+
+	function instances_list ()
+	{
+		find "$InsDir"       \
+			-mindepth 1      \
+			-maxdepth 1      \
+			-type d          \
+			-printf "%f\n"
+	}
+	
+	function command_usage_processing () # $1: Command group, $2: Command, $3: Current argument position
+	{
+		local CmdParams=$("$KF2Srv" "$1" "$2" "usage")
+		local LocalPosition; ((LocalPosition = $3 - 2))
+		
+		local ParamIndex=0
+		local LastParam
+		for Param in $CmdParams
+		do
+			((ParamIndex++))
+			if [[ "$ParamIndex" -eq "$LocalPosition" ]]; then
+				if echo "$Param" | grep -Fq '<instance>'; then
+					COMPREPLY=($(compgen -W "$(instances_list)" -- "${CURARG}"))
+				fi
+				return 0
+			fi
+			LastParam="$Param"
+		done
+		
+		if echo "$LastParam" | grep -Fq '<instance>...'; then
+			COMPREPLY=($(compgen -W "$(instances_list)" -- "${CURARG}"))
+		fi
+	}
+	
+	COMPREPLY=()
+	CURARG="${COMP_WORDS[COMP_CWORD]}"
+	
+	case "${COMP_CWORD}" in
+		1 ) COMPREPLY=($(compgen -W "$(groups_list)"                    -- "${CURARG}"))  ;;
+		2 ) COMPREPLY=($(compgen -W "$(commands_list ${COMP_WORDS[1]})" -- "${CURARG}"))  ;;
+		* ) command_usage_processing "${COMP_WORDS[1]}" "${COMP_WORDS[2]}" "${COMP_CWORD}";;
+	esac
+	
+	return 0
+}
+
+function _kf2_srv_beta_completions ()
+{
+	_kf2_srv_completions "-beta"
+}
+
+complete -F _kf2_srv_completions kf2-srv
+complete -F _kf2_srv_beta_completions kf2-srv-beta
+
diff --git a/SOURCES/main/kf2-srv b/SOURCES/main/kf2-srv
index 3783c15..019c104 100755
--- a/SOURCES/main/kf2-srv
+++ b/SOURCES/main/kf2-srv
@@ -90,6 +90,11 @@ function is_help () # $1: Arg
 	echo "$1" | grep -Piqo '^(-h|--help|help)$'
 }
 
+function is_usage () # $1: Arg
+{
+	echo "$1" | grep -Piqo '^usage$'
+}
+
 function is_version () # $1: Arg
 {
 	echo "$1" | grep -Piqo '^(-v|--version|version)$'
@@ -197,6 +202,12 @@ elif [[ -d "$GroupPathname" ]]; then
 			else
 				echo "No help page for this command."
 			fi
+		elif is_usage "$1"; then
+			if function_exists "cmd_usage"; then
+				cmd_usage
+			else
+				echo "No usage information for this command."
+			fi
 		else
 			if function_exists "cmd_main"; then
 				if function_exists "cmd_need_installed_server" && cmd_need_installed_server && ! server_exists; then
diff --git a/SPECS/kf2-srv.spec b/SPECS/kf2-srv.spec
index a00e5df..f46d91f 100644
--- a/SPECS/kf2-srv.spec
+++ b/SPECS/kf2-srv.spec
@@ -1,8 +1,8 @@
 %global steamuser steam
 
 Name:       kf2-srv
-Version:    0.14.1
-Release:    2%{dist}
+Version:    0.15.0
+Release:    1%{dist}
 Summary:    Killing Floor 2 server
 Group:      Amusements/Games
 License:    GNU GPLv3
@@ -31,6 +31,7 @@ Requires:   multini >= 0.2.3
 Requires:   rsyslog >= 8.25.0
 Requires:   logrotate
 Requires:   inotify-tools
+Requires:   bash-completion >= 2.7
 
 Provides:   %{name}
 
@@ -80,6 +81,7 @@ rm -rf $RPM_BUILD_ROOT
 %attr(0644,root,root)                            %{_sysconfdir}/logrotate.d/%{name}
 %attr(0644,root,root)                            %{_datadir}/%{name}/cmdgrp/*/*
 %attr(0644,root,root)                            %{_datadir}/%{name}/lib/*
+%attr(0644,root,root)                            %{_sysconfdir}/bash_completion.d/%{name}
 
 %preun
 if [[ $1 -eq 0 ]] ; then # Uninstall
@@ -99,6 +101,9 @@ if [[ $1 == 1 ]]; then # Install
 fi
 
 %changelog
+* Thu Aug 13 2020 GenZmeY <genzmey@gmail.com> - 0.15.0-1
+- bash completion support.
+
 * Mon Aug 10 2020 GenZmeY <genzmey@gmail.com> - 0.14.1-2
 - github-actions build.