Replace echos with printf and general improvements (#482)

Co-authored-by: nnyyxxxx <nnyyxxxx@users.noreply.github.com>
Co-authored-by: Chris Titus <contact@christitus.com>

Author: 3 people

tabs/common-script.sh

@@ -20,13 +20,13 @@ checkAURHelper() {
             for helper in ${AUR_HELPERS}; do
                 if command_exists "${helper}"; then
                     AUR_HELPER=${helper}
-                    echo "Using ${helper} as AUR helper"
+                    printf "Using ${helper} as AUR helper"
                     AUR_HELPER_CHECKED=true
                     return 0
                 fi
             done
 
-            echo "Installing yay as AUR helper..."
+            printf "%b\n" "${YELLOW}Installing yay as AUR helper...${RC}"
             "$ESCALATION_TOOL" "$PACKAGER" -S --needed --noconfirm base-devel
             cd /opt && "$ESCALATION_TOOL" git clone https://aur.archlinux.org/yay-bin.git && "$ESCALATION_TOOL" chown -R "$USER":"$USER" ./yay-bin
             cd yay-bin && makepkg --noconfirm -si
@@ -49,7 +49,7 @@ checkEscalationTool() {
         for tool in ${ESCALATION_TOOLS}; do
             if command_exists "${tool}"; then
                 ESCALATION_TOOL=${tool}
-                echo "Using ${tool} for privilege escalation"
+                printf "Using ${tool} for privilege escalation"
                 ESCALATION_TOOL_CHECKED=true
                 return 0
             fi
@@ -65,7 +65,7 @@ checkCommandRequirements() {
     REQUIREMENTS=$1
     for req in ${REQUIREMENTS}; do
         if ! command_exists "${req}"; then
-            echo "${RED}To run me, you need: ${REQUIREMENTS}${RC}"
+            printf "%b\n" "${RED}To run me, you need: ${REQUIREMENTS}${RC}"
             exit 1
         fi
     done
@@ -77,7 +77,7 @@ checkPackageManager() {
     for pgm in ${PACKAGEMANAGER}; do
         if command_exists "${pgm}"; then
             PACKAGER=${pgm}
-            echo "Using ${pgm}"
+            printf "Using ${pgm}"
             break
         fi
     done
@@ -94,14 +94,14 @@ checkSuperUser() {
     for sug in ${SUPERUSERGROUP}; do
         if groups | grep -q "${sug}"; then
             SUGROUP=${sug}
-            echo "Super user group ${SUGROUP}"
+            printf "Super user group ${SUGROUP}"
             break
         fi
     done
 
     ## Check if member of the sudo group.
     if ! groups | grep -q "${SUGROUP}"; then
-        echo "${RED}You need to be a member of the sudo group to run me!${RC}"
+        printf "%b\n" "${RED}You need to be a member of the sudo group to run me!${RC}"
         exit 1
     fi
 }
@@ -110,7 +110,7 @@ checkCurrentDirectoryWritable() {
     ## Check if the current directory is writable.
     GITPATH="$(dirname "$(realpath "$0")")"
     if [ ! -w "$GITPATH" ]; then
-        echo "${RED}Can't write to $GITPATH${RC}"
+        printf "%b\n" "${RED}Can't write to $GITPATH${RC}"
         exit 1
     fi
 }