Enhance compatibility of install.sh for systems without sudo (#1176)

This commit modifies the install.sh script to improve compatibility with systems lacking the sudo command. A conditional check is added at the beginning of the script to see if the sudo command exists. If it does, operations in the script that previously required sudo would proceed as normal, using the sudo command. If the system does not have sudo, the shell would execute these operations without it. This change enhances the usability of this script in restricted environments where sudo is not installed or available to users.

release_files/install.sh

@@ -1,4 +1,3 @@
-#!/bin/sh
 # This code is based on the netbird-installer contribution by physk on GitHub.
 # Source: https://github.com/physk/netbird-installer
 set -e
@@ -17,6 +16,12 @@ OS_TYPE=""
 ARCH="$(uname -m)"
 PACKAGE_MANAGER="bin"
 INSTALL_DIR=""
+SUDO=""
+
+
+if command -v sudo > /dev/null && [ "$(id -u)" -ne 0 ]; then
+    SUDO="sudo"
+fi
 
 get_latest_release() {
     if [ -n "$GITHUB_TOKEN" ]; then
@@ -65,18 +70,18 @@ download_release_binary() {
         unzip -q -o "$BINARY_NAME"
         mv "netbird_ui_${OS_TYPE}_${ARCH}" "$INSTALL_DIR"
     else
-        sudo mkdir -p "$INSTALL_DIR"
+        ${SUDO} mkdir -p "$INSTALL_DIR"
         tar -xzvf "$BINARY_NAME"
-        sudo mv "${1%_"${BINARY_BASE_NAME}"}" "$INSTALL_DIR/"
+        ${SUDO} mv "${1%_"${BINARY_BASE_NAME}"}" "$INSTALL_DIR/"
     fi
 }
 
 add_apt_repo() {
-    sudo apt-get update
+    ${SUDO} apt-get update
-    sudo apt-get install ca-certificates curl gnupg -y
+    ${SUDO} apt-get install ca-certificates curl gnupg -y
 
     # Remove old keys and repo source files
-    sudo rm -f \
+    ${SUDO} rm -f \
         /etc/apt/sources.list.d/netbird.list \
         /etc/apt/sources.list.d/wiretrustee.list \
         /etc/apt/trusted.gpg.d/wiretrustee.gpg \
@@ -84,16 +89,16 @@ add_apt_repo() {
         /usr/share/keyrings/wiretrustee-archive-keyring.gpg
 
     curl -sSL https://pkgs.netbird.io/debian/public.key \
-    | sudo gpg --dearmor -o /usr/share/keyrings/netbird-archive-keyring.gpg
+    | ${SUDO} gpg --dearmor -o /usr/share/keyrings/netbird-archive-keyring.gpg
 
     echo 'deb [signed-by=/usr/share/keyrings/netbird-archive-keyring.gpg] https://pkgs.netbird.io/debian stable main' \
-    | sudo tee /etc/apt/sources.list.d/netbird.list
+    | ${SUDO} tee /etc/apt/sources.list.d/netbird.list
 
-    sudo apt-get update
+    ${SUDO} apt-get update
 }
 
 add_rpm_repo() {
-cat <<-EOF | sudo tee /etc/yum.repos.d/netbird.repo
+cat <<-EOF | ${SUDO} tee /etc/yum.repos.d/netbird.repo
 [NetBird]
 name=NetBird
 baseurl=https://pkgs.netbird.io/yum/
@@ -112,7 +117,7 @@ add_aur_repo() {
     for PKG in $INSTALL_PKGS; do
         if ! pacman -Q "$PKG" > /dev/null 2>&1; then
             # Install missing package(s)
-            sudo pacman -S "$PKG" --noconfirm
+            ${SUDO} pacman -S "$PKG" --noconfirm
 
             # Add installed package for clean up later
             REMOVE_PKGS="$REMOVE_PKGS $PKG"
@@ -129,7 +134,7 @@ add_aur_repo() {
     fi
 
     # Clean up the installed packages
-    sudo pacman -Rs "$REMOVE_PKGS" --noconfirm
+    ${SUDO} pacman -Rs "$REMOVE_PKGS" --noconfirm
 }
 
 install_native_binaries() {
@@ -194,31 +199,31 @@ install_netbird() {
     case "$PACKAGE_MANAGER" in
     apt)
         add_apt_repo
-        sudo apt-get install netbird -y
+        ${SUDO} apt-get install netbird -y
 
         if ! $SKIP_UI_APP; then
-            sudo apt-get install netbird-ui -y
+            ${SUDO} apt-get install netbird-ui -y
         fi
     ;;
     yum)
         add_rpm_repo
-        sudo yum -y install netbird
+        ${SUDO} yum -y install netbird
         if ! $SKIP_UI_APP; then
-            sudo yum -y install netbird-ui
+            ${SUDO} yum -y install netbird-ui
         fi
     ;;
     dnf)
         add_rpm_repo
-        sudo dnf -y install dnf-plugin-config-manager
+        ${SUDO} dnf -y install dnf-plugin-config-manager
-        sudo dnf config-manager --add-repo /etc/yum.repos.d/netbird.repo
+        ${SUDO} dnf config-manager --add-repo /etc/yum.repos.d/netbird.repo
-        sudo dnf -y install netbird
+        ${SUDO} dnf -y install netbird
 
         if ! $SKIP_UI_APP; then
-            sudo dnf -y install netbird-ui
+            ${SUDO} dnf -y install netbird-ui
         fi
     ;;
     pacman)
-        sudo pacman -Syy
+        ${SUDO} pacman -Syy
         add_aur_repo
     ;;
     brew)
@@ -251,7 +256,7 @@ install_netbird() {
 
         echo "Build and apply new configuration:"
         echo ""
-        echo "sudo nixos-rebuild switch"
+        echo "${SUDO} nixos-rebuild switch"
 			  exit 0
       fi
 
@@ -260,14 +265,14 @@ install_netbird() {
     esac
 
     # Add package manager to config
-    sudo mkdir -p "$CONFIG_FOLDER"
+    ${SUDO} mkdir -p "$CONFIG_FOLDER"
-    echo "package_manager=$PACKAGE_MANAGER" | sudo tee "$CONFIG_FILE" > /dev/null
+    echo "package_manager=$PACKAGE_MANAGER" | ${SUDO} tee "$CONFIG_FILE" > /dev/null
 
     # Load and start netbird service
-    if  ! sudo netbird service install 2>&1; then
+    if  ! ${SUDO} netbird service install 2>&1; then
         echo "NetBird service has already been loaded"
     fi
-    if  ! sudo netbird service start 2>&1; then
+    if  ! ${SUDO} netbird service start 2>&1; then
         echo "NetBird service has already been started"
     fi
 
@@ -282,7 +287,7 @@ version_greater_equal() {
 }
 
 is_bin_package_manager() {
-  if sudo test -f "$1" && sudo grep -q "package_manager=bin" "$1" ; then
+  if ${SUDO} test -f "$1" && ${SUDO} grep -q "package_manager=bin" "$1" ; then
     return 0
   else
     return 1
@@ -305,12 +310,12 @@ update_netbird() {
       echo ""
       echo "Initiating NetBird update. This will stop the netbird service and restart it after the update"
 
-      sudo netbird service stop
+      ${SUDO} netbird service stop
-      sudo netbird service uninstall
+      ${SUDO} netbird service uninstall
       install_native_binaries
 
-      sudo netbird service install
+      ${SUDO} netbird service install
-      sudo netbird service start
+      ${SUDO} netbird service start
     fi
   else
      echo "NetBird installation was done using a package manager. Please use your system's package manager to update"