144 lines
4.4 KiB
Bash
Executable file
144 lines
4.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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# shellcheck disable=SC2164,SC2181
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#
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# Upgrade gitea binary
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# - run this under sudo as it replaces and restarts gitea
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# - "gitea" is a symlink to the numbered github download binary
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# - allows for quick rollback if needed
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# - e.g.: 'ln -s gitea-1.16.3-linux-amd64 gitea'
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#
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# Exit codes
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# 0 = Success (already newest or upgrade worked)
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# 1 = curl failed to download new version
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# 2 = sha256sum check failed on download
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# 3 = "gitea" wasn't a symlink
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# 4 = upgrade version check failed, gitea not restarted
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# 5 = could not change directory to run sha256sum
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# 6 = cannot determine Gitea version info
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# 20 = not running under sudo (see TEA_SUDO)
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# 21 = gitea upgraded but not restarted (see TEA_HUP)
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# 22 = gitea upgrade downloaded only (see TEA_LINK)
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#
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# Requires: curl, awk, grep, sha256sum
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# Debug: bash -x /path/to/script.sh
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#
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# SPDX-License-Identifier: MIT
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_VERSION="0.0.1"
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# symlink name used to run gitea (e.g. "gitea")
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TEA_SYM="gitea"
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# where the binary is located (e.g. "/usr/local/bin")
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TEA_DIR="/var/xyzzy/bin"
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# 0 = verbose status, 1 = silent and rely on exit codes
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TEA_QUIET=0
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# require running this script under sudo, 0 to disable
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TEA_SUDO=1
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# restart gitea using TEA_CMD, 0 to disable
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TEA_HUP=0
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# replace symlink, 0 to disable (download only, implies TEA_HUP=0)
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TEA_LINK=1
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# command to restart gitea (e.g. "systemctl restart gitea")
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TEA_CMD="systemctl restart gitea"
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# github API endpoint to get latest version
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TEA_API="https://api.github.com/repos/go-gitea/gitea/releases/latest"
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# github download base URL to prepend with version info
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TEA_DLB="https://github.com/go-gitea/gitea/releases/download"
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# architecture being used, matches download name
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TEA_ARCH="linux-amd64"
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function noise() {
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if [[ ${TEA_QUIET} -eq 0 ]]; then
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echo "$*"
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fi
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}
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if [[ ${TEA_SUDO} -eq 1 ]]; then
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if [[ $(id -u) -ne 0 ]]; then
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noise "Run this script as root (sudo)"
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exit 20
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fi
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fi
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# disable curl download progress if in quiet mode
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_COPT=""
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if [[ ${TEA_QUIET} -eq 1 ]]; then
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_COPT="-s"
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fi
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noise "Checking gitea..."
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# get installed version
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_LOCAL=$("${TEA_DIR}/${TEA_SYM}" -version | awk '{print $3}')
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# get latest version, strip leading "v" (v1.55.1 -> 1.55.1)
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_REMOTE=$(curl -s "${TEA_API}" | grep -Po '"tag_name": "\K.*?(?=")')
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_REMOTE=${_REMOTE#v}
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# API failed, can't run local binary, etc. - something went wrong
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if [[ -z "${_LOCAL}" || -z "${_REMOTE}" ]]; then
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noise "Cannot determine Gitea version information"
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exit 6
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fi
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# bash doesn't see versions as numbers, but as strings
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if [[ "${_LOCAL}" != "${_REMOTE}" ]]; then
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_TEA_NAME="gitea-${_REMOTE}-${TEA_ARCH}"
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noise "Upgrading gitea - installed ${_LOCAL}, latest ${_REMOTE}"
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# curl will handle a failure being able to write to output dir, etc.
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curl ${_COPT} -L --output-dir "${TEA_DIR}" --remote-name-all \
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"${TEA_DLB}/v${_REMOTE}/${_TEA_NAME}" \
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"${TEA_DLB}/v${_REMOTE}/${_TEA_NAME}.sha256"
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if [[ $? -eq 0 ]]; then
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# downloads were successful and written to disk
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pushd "$(pwd)" >/dev/null
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cd "${TEA_DIR}" || (noise "Cannot cd to ${TEA_DIR}"; exit 5)
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noise "Checking sha256sum..."
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sha256sum --status -c "${_TEA_NAME}.sha256"
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if [[ $? -eq 0 ]]; then
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# sha256sum check passed
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chmod +x "${_TEA_NAME}"
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if [[ ${TEA_LINK} -eq 1 ]]; then
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# user requested replacing symlink
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if [[ -h "${TEA_SYM}" ]]; then
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noise "Replacing symlink..."
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rm -f "${TEA_SYM}"
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ln -s "${_TEA_NAME}" "${TEA_SYM}"
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# trust, but verify
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_TEA_NEW=$("${TEA_DIR}/${TEA_SYM}" -version | awk '{print $3}')
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if [[ "${_TEA_NEW}" == "${_REMOTE}" ]]; then
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noise "Gitea binary/symlink upgraded to ${_TEA_NEW}"
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if [[ ${TEA_HUP} -eq 1 ]]; then
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# user requested restart
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noise "Restarting gitea..."
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${TEA_CMD}
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else
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noise "Gitea needs restarted"
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exit 21
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fi
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else
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noise "Upgrade failed, not restarting gitea"
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exit 4
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fi
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else
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noise "${TEA_SYM} is not a symlink, not overwriting"
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exit 3
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fi
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else
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noise "Gitea ${_TEA_NAME} downloaded, ready to upgrade"
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exit 22
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fi
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else
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noise "Download of ${_TEA_NAME} failed sha256sum, not upgrading"
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exit 2
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fi
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popd >/dev/null
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else
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noise "Download of ${_TEA_NAME} and sha256 failed, not upgrading"
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exit 1
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fi
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else
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noise "Installed gitea is the latest - ${_LOCAL}"
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fi
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