011e2af296
Help function uses command name in usage (Required handling required arguments outside b3bp)
132 lines
3.6 KiB
Bash
Executable file
132 lines
3.6 KiB
Bash
Executable file
#!/bin/bash
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# Script to backup git repo(s) to Backblaze B2
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# Usage
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read -r -d '' __usage <<-'EOF' || true
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Options:
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-b --b2-bucket [arg] Backblaze B2 bucket name.
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-i --b2-id [arg] Backblaze B2 account ID.
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-k --b2-key [arg] Backblaze B2 application key.
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-g --github-account [arg] GitHub account name.
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-t --temp-dir [arg] Dir to use for temp files.
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-h --help This page.
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EOF
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__helptext='NOTE: --temp-dir defaults to "$(mktemp -d)" if not specified.'
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# Load BASH3 Boilerplate functions
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source bash3boilerplate/main.sh
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# Color fix for rxvt-unicode (tell b3bp we're xterm)
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TERM="xterm"
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# Functions
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function compress_repository() {
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# Move to repository dir so relative paths are used in the archive
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local repo_source="${1:-}"
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local archive_dest="${2:-}"
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local repo_path="$(dirname "$(realpath "${repo_source}")")"
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local repo_source="$(basename "$(realpath "${repo_source}")")"
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local archive_dest="$(realpath "${archive_dest}")"
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pushd "${repo_path}" >/dev/null
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# Create archive
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tar cpzf "${archive_dest}" "${repo_source}"
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# Done
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popd >/dev/null
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}
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function find_b2_cmd() {
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if which backblaze-b2 >/dev/null 2>&1; then
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# Arch Linux uses this name
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echo "backblaze-b2"
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elif which b2 > /dev/null 2>&1; then
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echo "b2"
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else
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__b3bp_log error "B2 command-line tool not found"
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exit 1
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fi
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}
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function fix_repository_name() {
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# Remove '.git' from the name (if present)
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local repository="${1:-}"
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if [[ "${repository: -4:4}" == ".git" ]]; then
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repository="${repository:0: -4}"
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fi
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echo "${repository}"
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}
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function main() {
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# Set env
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local b2_bucket="${arg_b}"
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local b2_cmd="$(find_b2_cmd)"
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local b2_id="${arg_i}"
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local b2_key="${arg_k}"
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local date="$(date '+%F_%H%M%z')"
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local github_account="${arg_g}"
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local temp_dir="${arg_t:-}"
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if [[ "$temp_dir" == "" ]]; then
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temp_dir="$(mktemp -d)"
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fi
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# Create the temp_dir
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mkdir -p "${temp_dir}"
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# Authorize B2 account
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"${b2_cmd}" authorize-account "${b2_id}" "${b2_key}"
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# Loop over repos
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for repo in "${@}"; do
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repo="$(fix_repository_name "${repo}")"
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echo "Backing up ${repo}"
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# Clone repo
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echo "Cloning ${repo}"
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git clone --mirror \
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"https://github.com/${github_account}/${repo}.git" \
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"${temp_dir}/${repo}-${date}.git"
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# Compress repo
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echo "Compressing ${repo}"
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compress_repository "${temp_dir}/${repo}-${date}.git" \
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"${temp_dir}/${repo}-${date}.git.tgz"
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# Upload repo
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echo "Uploading ${repo}"
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"${b2_cmd}" upload-file "${b2_bucket}" \
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"${temp_dir}/${repo}-${date}.git.tgz" \
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"${github_account}/${repo}-${date}.git.tgz"
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# Cleanup
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/bin/rm "${temp_dir}/${repo}-${date}.git.tgz"
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/bin/rm -rf "${temp_dir}/${repo}-${date}.git"
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# Done
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echo "Successfully backed up ${repo}"
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done
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# Remove temp_dir (if empty)
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/bin/rmdir --ignore-fail-on-non-empty "${temp_dir}"
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}
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# Check args
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__run="yes"
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if [[ "${arg_h}" == "0" ]]; then
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# Show missing arg warnings only if help arg isn't specified
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[[ -z "${arg_b:-}" ]] && echo "B2 bucket not specified" && __run="no"
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[[ -z "${arg_i:-}" ]] && echo "B2 ID not specified" && __run="no"
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[[ -z "${arg_k:-}" ]] && echo "B2 Key not specified" && __run="no"
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[[ -z "${arg_g:-}" ]] && echo "GitHub account not specified" && __run="no"
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[[ "${#}" == "0" ]] && echo "No repos specified" && __run="no"
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fi
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# Show help or run backups
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if [[ "${arg_h}" = 1 ]] || [[ "${__run}" == "no" ]]; then
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# -h or --help used or missing argument(s), show usage and exit
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help "Usage: ${__base} [options] repo(s)..."
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else
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# Backup repo(s)
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main "${@}"
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fi
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exit 0
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