This bash script fixes up the repositories in gitlab after restoring a backup in a new gitlab instance

fix_gitlab.sh

#!/bin/bash

gitlab_user="git"

if [[ "$(whoami)" == "$gitlab_user" ]]
then
    echo "Searching for errors and corecting them"
else
    echo "Nope, wrong user. Trying to login as $gitlab_user"
    su "$gitlab_user" -c "$0"
    exit $?
fi

echo "Correcting broken hook symlinks"
#
# Correct broken hook symlinks
###
old_target="/home/git/gitlab-shell/hooks"
new_target="/opt/gitlab/embedded/service/gitlab-shell/hooks"

while read -r link
do
    target=$(readlink $link)
    echo "$link -> $target"

    if [[ "$target" == "$old_target" ]]
    then
        ln -sfnv "$new_target" "$link"
    fi


done < <(find /var/opt/gitlab/git-data/repositories -type l -name hooks)

clear
echo "Removing backup origins from the repositories"
#
# Remove origins
###
while read -r config
do
    if grep -iP "\[remote \"origin\"\]" "$config"
    then
        tmp="$(mktemp)"
        head -n -2 "$config" > "$tmp"
        mv "$tmp" "$config"
    fi
done < <(find /var/opt/gitlab/git-data/repositories -type f -name config)