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#!/bin/bash
# stages:
#   - backup
# 
# backup_cgit:
#   stage: backup
#   image: alpine:latest
#   before_script:
#     - apk add --no-cache bash curl git
#     - git config --global user.name "GitLab CI"
#     - git config --global user.email "ci@gitlab.com"
#     - git remote set-url origin "https://oauth2:${TOKEN}@gitlab.com/user/repo.git"
#   script:
#     - /bin/bash cgit-backup.sh
#     - git checkout main || git checkout -b main
#     - git add repos/
#     - git commit -m "Backup cgit repositories $(date -u +'%Y-%m-%d %H:%M:%S UTC')" || true
#     - git push origin main -o ci.skip
#   only:
#     - schedules
#   variables:
#     GIT_STRATEGY: clone


cgit="https://cgit.heqnx.com"

mkdir -p repos

repos=$(curl -sSL "${cgit}" | grep -o "<a href='/[^']*/'>" | sed -E "s/^<a href='([^']*)'>/\1/" | sort -u)

while IFS= read -r repo_path; do
    repo_name=$(basename "${repo_path}")
    repo_url="${cgit}${repo_path}"
    repo_dir="repos/${repo_name}"

    printf "%s\n" "[inf] processing ${repo_url}"

    if test -d "${repo_dir}"; then
        if test -d "${repo_dir}/.git.bak"; then
            printf "%s\n" "[inf] restoring .git from .git.bak for ${repo_name}"
            mv "${repo_dir}/.git.bak" "${repo_dir}/.git"
        fi
        printf "%s\n" "[inf] fetching updates for ${repo_name}"
        git -C "${repo_dir}" fetch origin
        git -C "${repo_dir}" reset --hard origin/HEAD
    else
        printf "%s\n" "[inf] cloning ${repo_name}"
        git -C repos clone "${repo_url}"
    fi

    if test -d "${repo_dir}/.git"; then
        printf "%s\n" "[inf] moving .git to .git.bak for ${repo_name}"
        mv "${repo_dir}/.git" "${repo_dir}/.git.bak"
    fi

done <<< "${repos}"