upgradeFedora.sh

upgradeFedora.sh

#!/bin/bash

set -e

# Make sure DNF is installed
if ! command -v dnf &> /dev/null; then
  echo "dnf could not be found. Please install dnf first."
  exit
fi

# Determine if we are in the middle of an upgrade
UPGRADE_IN_PROGRESS=false
LOGFILE=$(ls -t $HOME/fedoraUpgrade-*.log 2>/dev/null | head -n 1)

if [[ -f $LOGFILE ]]; then
    LAST_STEP=$(tail -n 1 $LOGFILE)
    if [[ $LAST_STEP != *"Done" ]]; then
        UPGRADE_IN_PROGRESS=true
        # Fetch the release version from the last log file name
        LOGFILE_RELEASE_VER=$(basename $LOGFILE | grep -oP '(?<=fedoraUpgrade-)\d+')
        RELEASE_VER=$LOGFILE_RELEASE_VER
    fi
fi

if [[ $UPGRADE_IN_PROGRESS == false ]]; then
    CURRENT_VER=$(awk '{print $3}' /etc/redhat-release)
    if [[ ! $CURRENT_VER =~ ^[0-9]+$ ]]; then
        echo "Invalid Fedora version number: $CURRENT_VER"
        exit 1
    fi

    RELEASE_VER=$(($CURRENT_VER + 1))

    # Define log file
    LOGFILE="$HOME/fedoraUpgrade-$RELEASE_VER.log"
else
    # Fetch current version from /etc/redhat-release
    CURRENT_VER=$(awk '{print $3}' /etc/redhat-release)
fi

echo "Current Fedora version: $CURRENT_VER"
echo "Next Fedora version: $RELEASE_VER"

# Define upgrade steps
declare -A STEPS
STEPS=(
    ["Upgrade"]="dnf upgrade --refresh -y"
    ["Install Plugin"]="dnf install dnf-plugin-system-upgrade -y"
    ["Download System Upgrade"]="dnf system-upgrade download --refresh --releasever=$RELEASE_VER -y"
    ["Reboot"]="dnf system-upgrade reboot"
    ["Clean System Upgrade"]="dnf system-upgrade clean"
    ["Clean Packages"]="dnf clean packages"
)

# Check if step was completed
function step_completed() {
    local step=$1
    grep -q "fedoraUpgrade->$step" "$LOGFILE" && grep -q "fedoraUpgrade->$step Done" "$LOGFILE"
}

# Run upgrade steps
for step in "${!STEPS[@]}"; do
    command=${STEPS[$step]}

    if [[ -f $LOGFILE && $(step_completed $step) == true ]]; then
        echo "Step '$step' already completed, skipping."
        continue
    fi

    echo "fedoraUpgrade->$step" >> $LOGFILE

    if [[ $step == "Reboot" ]]; then
        read -p "Are you ready to reboot? (y/n) " -n 1 -r
        echo
        if [[ $REPLY =~ ^[Yy]$ ]]; then
            REBOOT_TIMESTAMP=$(date +%s)
            echo "RebootStartedOn $REBOOT_TIMESTAMP" >> $LOGFILE
            eval $command
            exit
        else
            echo "Skipping reboot."
            continue
        fi
    else
        eval $command
        echo "fedoraUpgrade->$step Done" >> $LOGFILE
    fi
done

if grep -q "RebootStartedOn" "$LOGFILE"; then
    REBOOT_TIMESTAMP=$(grep "RebootStartedOn" "$LOGFILE" | awk '{print $2}')
    CURRENT_TIMESTAMP=$(date +%s)
    REBOOT_DURATION=$((CURRENT_TIMESTAMP - REBOOT_TIMESTAMP))
    echo "The reboot took $REBOOT_DURATION seconds."
fi

echo "Upgrade process completed successfully."