Add repository for Signal Desktop

apps/signal/signal.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+#### Variables
+APT_UPDATE="apt -y update"
+APT_INST="apt -y install"
+APT_PURGE="apt -y purge"
+APT_REMOVE="apt -y autoremove"
+
+PKG="signal-desktop"
+
+#### Functions
+check_root() {
+    if [ "$EUID" -ne 0 ]; then
+        echo "Must be root to run $0"
+        exit
+    fi
+}
+
+choice() {
+    echo -ne "[y/n]"
+    while true; do
+        read -rN1 input
+        case $input in
+        [yY][eE][sS] | [yY])
+            return 0
+
+            break
+            ;;
+        [nN][oO] | [nN])
+            return 1
+            ;;
+        esac
+    done
+}
+
+#### Main
+
+check_root
+
+echo -e "\nUpdate apt"
+echo "$APT_UPDATE"
+$APT_UPDATE
+
+echo -ne "\nYou want to install Signal ($PKG)? "
+
+if choice 2>/dev/null; then
+    echo -ne "\nAdd repository for Signal\n"
+    $APT_INST apt-transport-https wget
+    sudo install -d -m 0755 /etc/apt/keyrings
+    wget -q https://updates.signal.org/desktop/apt/keys.asc -O- | tee /etc/apt/keyrings/signal.asc > /dev/null
+    echo "deb [signed-by=/etc/apt/keyrings/signal.asc] https://updates.signal.org/desktop/apt xenial main" | sudo tee /etc/apt/sources.list.d/signal.list > /dev/null
+    $APT_UPDATE
+    echo -ne "\n$APT_INST $PKG\n"
+    $APT_INST $PKG
+fi
+
+echo -ne "\n\n"