✨ add nextcloud desktop launcher

bin/.inc/common

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+# check if a command is available
+has_command() { # $command
+    command -v "${1}" 1>/dev/null 2>/dev/null
+}
+
+needs_commands() { # $status $cmd1 $cmd2 ...
+    _nc_status="${1}"
+    shift 1
+
+    for _nc_cmd in "${@}"; do
+        if ! has_command "${_nc_cmd}"; then
+            echo "Command '${_nc_cmd}' not available!" >&2
+            exit "${_nc_status}"
+        fi
+    done
+}

bin/nextcloud-appimage-launch

@@ -0,0 +1,45 @@
+#!/bin/sh
+
+INSTALL_DIR="/path/to/nextcloud-client"
+
+# name:     nextcloud-appimage-launch
+# summary:  Downloads and launches the latest Nextcloud (desktop) AppImage
+# params:   none
+
+THISDIR="$(dirname "$(readlink -f "${0}")")"
+# shellcheck disable=SC1091
+. "${THISDIR}/.inc/common"
+
+needs_commands "curl" "notify-send"
+
+version_available="$( \
+    curl -sSv 'https://github.com/nextcloud-releases/desktop/releases/latest' 2>&1 \
+    | grep '^< location: ' \
+    | grep -Eo '[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+' \
+    | head -n1 \
+)"
+
+version_installed="$( \
+    readlink "${INSTALL_DIR}/current" \
+    | grep -Eo '[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+' \
+)"
+
+if [ -n "${version_available}" ] && [ "${version_available}" != "${version_installed}" ]; then
+    echo "new nextcloud version available: ${version_available}"
+    notify-send \
+        --app-name "Nextcloud" \
+        --icon "${THISDIR}/.icon/nextcloud.svg" \
+        "nextcloud-appimage-launch" \
+        "new nextcloud version available: ${version_available}"
+
+    curl -sSfL \
+        "https://github.com/nextcloud-releases/desktop/releases/download/v${version_available}/Nextcloud-${version_available}-x86_64.AppImage" \
+        --output "${INSTALL_DIR}/Nextcloud-${version_available}-x86_64.AppImage"
+
+    chmod +x "${INSTALL_DIR}/Nextcloud-${version_available}-x86_64.AppImage"
+    ln -sf "./Nextcloud-${version_available}-x86_64.AppImage" "${INSTALL_DIR}/current"
+else
+    echo "nextcloud is up to date!"
+fi
+
+exec "${INSTALL_DIR}/current" --background "${@}"

bin/system-update

@@ -6,10 +6,9 @@
 #           - fully POSIX shell compliant
 # params:   none
 
-# check if a command is available
-has_command() { # $command
-    command -v "$1" 1>/dev/null 2>/dev/null
-}
+THISDIR="$(dirname "$(readlink -f "${0}")")"
+# shellcheck disable=SC1091
+. "${THISDIR}/.inc/common"
 
 # run self as root
 if [ "$(id -u)" -ne 0 ]; then
@@ -48,9 +47,9 @@ if has_command snap; then
     env LANG=en_US.UTF-8 snap list --all \
     | awk '/disabled/{print $1, $3}' \
     | while read -r snap_name snap_revision; do
-            set -x
-            snap remove "${snap_name}" --revision="${snap_revision}"
-            set +x
+        set -x
+        snap remove "${snap_name}" --revision="${snap_revision}"
+        set +x
     done
     set +ex
 fi