cron.root.update-git-mirrors

cron.root.update-git-mirrors

#!/bin/bash

GIT=/usr/bin/git
GIT_FETCH_TIMEOUT="5m"

warn() {
    echo "${1}" >&2
}

die() {
    warn "${1}"
    exit 1
}

bare-git-dir-p() {
    [[ $# = 1 ]] || die "${FUNCNAME[0]} must receive exactly one argument"
    [[ -d ${1} ]] && [[ -d ${1}/refs ]] && [[ -f ${1}/HEAD ]]
}

get_remote_mirror() {
    local repo_dir=${1}

    if [[ -f ${repo_dir}/clnet_remote ]]; then
        cat ${repo_dir}/clnet_remote
    else
        env GIT_DIR="${repo_dir}" ${GIT} config clnet.mirror 2>/dev/null
    fi
}

git_mirror_enabled_p() {
    local repo_dir=${1}

    local disabled_p=$(env GIT_DIR="${repo_dir}" ${GIT} config clnet.mirrorDisabled)
    if [[ ${disabled_p} == 'true' ]]; then
        return 1;
    else
        return 0;
    fi
}

update-git-dir() {
    [[ $# = 1 ]] || die "${FUNCNAME[0]} must receive exactly one argument"
    local repo_dir=${1}
    local user=$(ls -ld ${repo_dir} | cut -d " " -f 3)

    local remote_mirror=$(get_remote_mirror "${repo_dir}")
    if [[ -n ${remote_mirror} ]] && git_mirror_enabled_p "${repo_dir}"; then
        if [[ -n ${DEBUG} ]]; then
            local url
            if ! [[ "${remote_mirror}" =~ '://' ]]; then
                url=" = $(env GIT_DIR="${repo_dir}" ${GIT} config remote.${remote_mirror}.url)"
            fi
            echo "Updating ${repo_dir}"
            echo " from remote ${remote_mirror}${url}"
        fi
        sudo -u ${user} \
            env GIT_DIR="${repo_dir}" \
                timeout $GIT_FETCH_TIMEOUT ${GIT} fetch --force --tags --prune ${remote_mirror} master:master &>/dev/null
    fi
}

update-repos-by-type() {
    [[ $# = 1 ]] || die "${FUNCNAME[0]} must receive exactly one argument"
    local base_dir=${1}  # a glob pattern
    
    for repo_dir in ${base_dir} ; do
        if bare-git-dir-p ${repo_dir} ; then
            # single repo
            update-git-dir ${repo_dir}
        else
            # multiple repo
            for sub_repo in ${repo_dir}/* ; do
                if bare-git-dir-p ${sub_repo} ; then
                    update-git-dir ${sub_repo}
                elif bare-git-dir-p ${sub_repo}/.git ; then
                    update-git-dir ${sub_repo}
                fi
            done
        fi
    done
}

[[ ${1} == '-d' ]] && DEBUG=yes

source /custom/conf/functions

PROCESS=$(basename $0)
lock_script ${PROCESS}
on_exit() { release_script ${PROCESS}; }
trap on_exit EXIT

update-repos-by-type '/project/*/public_html/git'
update-repos-by-type '/home/*/public_html/git'