all: add script wg-activate.sh

The wg-activate.sh is script that activate only one wireguard connection
from list of configuration in /etc/wireguard/*.conf or turning off
all of them if no parameter is given.

6 files changed, 89 insertions, 11 deletions

diff --git a/AUR/.SRCINFO b/AUR/.SRCINFO
index b2a2e1e..cffea12 100644
--- a/AUR/.SRCINFO
+++ b/AUR/.SRCINFO
@@ -1,13 +1,13 @@
 pkgbase = bin.sh-git
 	pkgdesc = A collection of shell scripts
-	pkgver = r1.94e5916
+	pkgver = r2.23c8d78
 	pkgrel = 1
 	arch = any
 	license = GPL3
 	makedepends = git
 	provides = bin.sh
 	conflicts = bin.sh
-	source = bin.sh::git+file:///home/ms/src/bin.sh
+	source = bin.sh::git+https://git.sr.ht/~shulhan/bin.sh
 	md5sums = SKIP
 
 pkgname = bin.sh-git
diff --git a/AUR/PKGBUILD b/AUR/PKGBUILD
index 58d0edd..c21e338 100644
--- a/AUR/PKGBUILD
+++ b/AUR/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: Shulhan <ms@kilabit.info>
 pkgname=bin.sh-git
-pkgver=r1.94e5916
+pkgver=r2.23c8d78
 pkgrel=1
 pkgdesc="A collection of shell scripts"
 arch=('any')
@@ -30,7 +30,7 @@ pkgver() {
 package() {
 	cd "$srcdir/${pkgname%-git}"
 
-	make DESTDIR="$pkgdir/" install
+	make DESTDIR="$pkgdir" install
 }
 
 ## SPDX-FileCopyrightText: 2022 M. Shulhan <ms@kilabit.info>
diff --git a/Makefile b/Makefile
index 4a33a63..9be6e01 100644
--- a/Makefile
+++ b/Makefile
@@ -4,13 +4,16 @@
 .PHONY: install uninstall
 
 install:
-	install -d $(DESTDIR)usr/bin
-	install bin/tmux-session.sh  $(DESTDIR)usr/bin/
+	install -d $(DESTDIR)/usr/bin
+	install bin/tmux-session.sh  $(DESTDIR)/usr/bin/
+	install bin/wg-activate.sh   $(DESTDIR)/usr/bin/
 
-	install -d $(DESTDIR)etc/bash_completion.d
-	install --mode=0644 etc/bash_completion.d/tmux-session \
-		$(DESTDIR)/etc/bash_completion.d/
+	install -d $(DESTDIR)/etc/bash_completion.d
+	install --mode=0644 etc/bash_completion.d/tmux-session $(DESTDIR)/etc/bash_completion.d/
+	install --mode=0644 etc/bash_completion.d/wg-activate  $(DESTDIR)/etc/bash_completion.d/
 
 uninstall:
-	rm -f $(DESTDIR)etc/bash_completion.d/tmux-session
-	rm -f $(DESTDIR)bin/tmux-session.sh
+	rm -f $(DESTDIR)/etc/bash_completion.d/wg-activate
+	rm -f $(DESTDIR)/etc/bash_completion.d/tmux-session
+	rm -f $(DESTDIR)/usr/bin/wg-activate.sh
+	rm -f $(DESTDIR)/usr/bin/tmux-session.sh
diff --git a/README b/README
index b36e0f3..c5d348e 100644
--- a/README
+++ b/README
@@ -8,6 +8,11 @@ A collection of shell scripts.
 Script to open new tmux session with start directory based on configuration in
 `~/.tmux.session`.
 
+*wg-activate.sh*::
+Script that activate only one wireguard connection from list of
+configuration in /etc/wireguard/*.conf or turning off all of them if no
+parameter is given.
+
 
 ==  Installation
 
diff --git a/bin/wg-activate.sh b/bin/wg-activate.sh
new file mode 100755
index 0000000..90dcff3
--- /dev/null
+++ b/bin/wg-activate.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+## SPDX-FileCopyrightText: 2022 M. Shulhan <ms@kilabit.info>
+## SPDX-License-Identifier: GPL-3.0-or-later
+
+## depends=wireguard-tools
+##
+## Script that activate only one wireguard connection from list of
+## configuration in /etc/wireguard/*.conf or turning off all of them if no
+## parameter is given.
+##
+## For example, given three configurations,
+##
+##	$ ls /etc/wireguard
+##	wg0.conf wg1.conf wg2.conf
+##
+## Assume that current wg0 is activate, to activate wg1 and deactivate the
+## rest, run
+##
+##	$ sudo wg-activate.sh wg1
+##
+
+exp=$1
+confs=$(find -L /etc/wireguard -maxdepth 1 -type f -name "*.conf" -print)
+activate=
+
+downs=()
+for f in $confs; do
+	got=$(basename "${f%.conf}")
+	if [[ "$exp" == "$got" ]]; then
+		activate=$exp
+	else
+		downs+=("$got")
+	fi
+done
+
+if [[ -z "$activate" ]]; then
+	echo "Turning off all connections."
+fi
+
+for f in "${downs[@]}"; do
+	wg-quick down $f
+done
+
+if [[ -n "$activate" ]]; then
+	wg-quick up $activate
+fi
diff --git a/etc/bash_completion.d/wg-activate b/etc/bash_completion.d/wg-activate
new file mode 100644
index 0000000..a0f5486
--- /dev/null
+++ b/etc/bash_completion.d/wg-activate
@@ -0,0 +1,24 @@
+#/usr/bin/env bash
+## SPDX-FileCopyrightText: 2022 M. Shulhan <ms@kilabit.info>
+## SPDX-License-Identifier: GPL-3.0-or-later
+
+_wg-activate_completions()
+{
+	confs=$(find -L /etc/wireguard -maxdepth 1 -type f -name "*.conf" -print)
+
+	names=()
+	for f in $confs; do
+		got=$(basename "${f%.conf}")
+		names+=("$got")
+	done
+
+	if [[ -z "${COMP_WORDS[1]}" ]]; then
+		COMPREPLY=("${names[@]}")
+		return
+	fi
+
+	words="${names[@]}"
+	COMPREPLY=($(compgen -W "$words" -- "${COMP_WORDS[1]}"))
+}
+
+complete -F _wg-activate_completions wg-activate.sh