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Complete git repository backup script to Backblaze B2
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| #!/bin/bash | |
| # Script to backup git repo to Backblaze B2 | |
| # Set bucket, temp_dir, password and account to use for the backup. I keep mine in local env vars | |
| # These are set by localrc which lives on an encrypted home directory and is executed by my bashrc | |
| # Ensure you have authorized the B2 command line tool with the correct account AND added your SSH | |
| # public key to your github account, if you need to backup private repositories. | |
| # To restore this repo in the future, download it from B2, extract it and then use this command: | |
| # cd old-repository.git | |
| # git push --mirror https://github.com/exampleuser/new-repository.git | |
| # Future details are here: https://help.github.com/articles/duplicating-a-repository/ | |
| set -o errexit | |
| set -o errtrace | |
| set -o nounset | |
| set -o pipefail | |
| b2_bucket="${BACKBLAZE_BUCKET}" | |
| b2_cmd="b2" | |
| b2_id="${BACKBLAZE_ID}" | |
| b2_key="${BACKBLAZE_KEY}" | |
| date="$(date '+%F_%H%M%z')" | |
| github_account="${GITHUB_ACCOUNT}" | |
| temp_dir="${BACKUP_TEMP_DIR}" | |
| # Check for backblaze-b2 | |
| # Check for b2 cmd | |
| if which backblaze-b2 >/dev/null 2>&1; then | |
| # Arch Linux uses this name | |
| b2_cmd="backblaze-b2" | |
| elif ! which b2 > /dev/null 2>&1; then | |
| echo "Error B2 command-line tool not found" | |
| exit 1 | |
| fi | |
| # Setup repository to ${1} | |
| repository="${1}" | |
| if [[ "${repository: -4:4}" == ".git" ]]; then | |
| repository="${repository:0: -4}" | |
| fi | |
| # Create the backup directory | |
| mkdir -p "${temp_dir}" | |
| pushd "${temp_dir}" > /dev/null | |
| echo "Backing up ${repository}" | |
| git clone --mirror --verbose \ | |
| "https://github.com/${github_account}/${repository}.git" \ | |
| "${repository}-${date}.git" | |
| if [ $? -ne 0 ]; then | |
| echo "Error cloning ${repository}" | |
| exit 1 | |
| fi | |
| tar cpzf "${repository}-${date}.git.tgz" "${repository}-${date}.git" | |
| if [ $? -ne 0 ]; then | |
| echo "Error compressing ${repository}" | |
| exit 1 | |
| fi | |
| # Authorize B2 account | |
| "${b2_cmd}" authorize-account "${b2_id}" "${b2_key}" | |
| if [ $? -ne 0 ]; then | |
| echo "Error authorizing Backblaze B2 account" | |
| exit 1 | |
| fi | |
| if [[ -f "${repository}-${date}.git.tgz" ]]; then | |
| "${b2_cmd}" upload-file "${b2_bucket}" \ | |
| "${repository}-${date}.git.tgz" \ | |
| "${github_account}/${repository}-${date}.git.tgz" | |
| fi | |
| if [ $? -ne 0 ]; then | |
| echo "Error uploading ${repository} to Backblaze B2" | |
| exit 1 | |
| fi | |
| #delete tar file and checked out folder | |
| /bin/rm "${temp_dir}/${repository}-${date}.git.tgz" | |
| /bin/rm -rf "${temp_dir}/${repository}-${date}.git" | |
| if [ $? -ne 0 ]; then | |
| echo "Error removing temp files" | |
| exit 1 | |
| fi | |
| popd > /dev/null | |
| echo "Succesfully backed up ${repository}" |
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