grab_gitea_update.sh

#!/bin/bash
GITEA_DIR=/home/gitea
cd "$GITEA_DIR"

CURRENT_VERSION=$(./gitea --version | sed -rnEe "s/([a-zA-Z ]+)([0-9\.]+).*/\2/p")
MAJOR_VERSION=$(echo ${CURRENT_VERSION} | sed -rnEe "s/(([0-9]+\.)([0-9]+\.))(.*)/\2/p" | sed -rnEe "s/([0-9]+)(.*)/\1/p")
MINOR_VERSION=$(echo ${CURRENT_VERSION} | sed -rnEe "s/(([0-9]+\.)([0-9]+\.))(.*)/\3/p" | sed -rnEe "s/([0-9]+)(.*)/\1/p")
ITER_VERSION=$(echo ${CURRENT_VERSION} | sed -rnEe "s/(([0-9]+\.)([0-9]+\.))(.*)/\4/p")
NEW_VERSION=${MAJOR_VERSION}.${MINOR_VERSION}.$(expr ${ITER_VERSION} + 1)
GRAB_VERSION=$(sudo wget https://dl.gitea.io/gitea/${NEW_VERSION}/gitea-${NEW_VERSION}-linux-amd64)

if [ $? -ne 0 ]
then
    echo "Version ${NEW_VERSION} does not exist."
    NEW_VERSION=${MAJOR_VERSION}.$(expr ${MINOR_VERSION} + 1).${ITER_VERSION}
    GRAB_VERSION=$(wget https://dl.gitea.io/gitea/${NEW_VERSION}/gitea-${NEW_VERSION}-linux-amd64)
    if [ $? -ne 0 ]
    then
        NEW_VERSION=$(expr ${MAJOR_VERSION} + 1).${MINOR_VERSION}.${ITER_VERSION}
        GRAB_VERSION=$(wget https://dl.gitea.io/gitea/${NEW_VERSION}/gitea-${NEW_VERSION}-linux-amd64)
        if [ $? -ne 0 ]
        then
            echo "No new versions detected. Exiting."
            exit
        else
            echo "Grabbed version ${NEW_VERSION}"
        fi
    else
        echo "Grabbed version ${NEW_VERSION}"
    fi
else
    echo "Grabbed version ${NEW_VERSION}"
fi

sudo mv gitea-${NEW_VERSION}-linux-amd64 gitea

sudo chmod +x gitea
sudo chown gitea:gitea gitea

sudo systemctl restart gitea

if [ -f /home/gitea/gitea-${NEW_VERSION}-linux-amd64 ]
then
    sudo rm /home/gitea/gitea-${NEW_VERSION}-linux-amd64
fi