329 lines
9.4 KiB
Bash
Executable File
329 lines
9.4 KiB
Bash
Executable File
#!/bin/sh
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# Purpose {{{
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## Create a temp file (to monitor) if an upgrade is available for Gitea
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## project on dl.gitea.io/Github.
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## It based on gitea's binary available in $PATH or give as first argument.
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## How-to use {{{
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### 1. Needs releasetags script, in the same directory
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### cf. https://git.ipr.univ-rennes1.fr/cellinfo/scripts/src/master/github/releasetags
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# wget https://git.ipr.univ-rennes1.fr/cellinfo/scripts/raw/master/github/releasetags
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### 2. Create a cron job, eg.
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#00 20 * * * root /opt/repos/ipr.scripts/github/check_gitea_update
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### 2-1 Create a cron job with a specific path for gitea bin, eg.
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#00 20 * * * root /opt/repos/ipr.scripts/github/check_gitea_update /srv/bin/gitea
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### 3. Monitor the temp file : /tmp/.github.gitea.upgrade
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# Or enable MAILTO in cronjob and edit the script to print a message.
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# Or send a mail.
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# …
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## }}}
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# }}}
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# Vars {{{
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readonly PROGNAME=$(basename "${0}")
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readonly PROGDIR=$(readlink -m $(dirname "${0}"))
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readonly ARGS="${*}"
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readonly NBARGS="${#}"
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## Test if DEBUG is already defined (by parent script,…)
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[ -z "${DEBUG}" ] && DEBUG=1
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## Default values for some vars
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GITEA_BIN_PATH_DEFAULT="$(command -v gitea)"
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GITEA_DOWNLOAD_DEFAULT=1
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gitea_download_github=1
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## Colors
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readonly PURPLE='\033[1;35m'
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readonly RED='\033[0;31m'
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readonly RESET='\033[0m'
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readonly COLOR_DEBUG="${PURPLE}"
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# }}}
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usage() { # {{{
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cat << HELP
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usage: $PROGNAME (/path/to/gitea) [-b|-p|-d|-h]
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Compare current version of an installed Gitea and the last available.
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EXAMPLES :
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- Compare the current version of Gitea with bin available in \$PATH
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${PROGNAME}
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- Compare the current version of Gitea at a specific place
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${PROGNAME} /srv/bin/gitea
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${PROGNAME} --path /srv/bin/gitea
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- Compare version and try to download the new version if require,
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next to current bin with '.to.upgrade.vX.YY.ZZ' suffix.
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${PROGNAME} --download
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${PROGNAME} --path /srv/bin/gitea --download
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- Compare version and try to download the new version from github.
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${PROGNAME} --download --github
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OPTIONS :
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-b,--bin,-p,--path
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Set the Gitea's path to use.
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--download
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Try to download the new release if available.
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--github
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Download new version from Github repository
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(dl.gitea.io is used by default).
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-d,--debug
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Enable debug messages.
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-h,--help
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Print this help message.
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HELP
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}
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# }}}
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debug_message() { # {{{
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local_debug_message="${1}"
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## Print message if DEBUG is enable (=0)
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_debug_message}"
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unset local_debug_message
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return 0
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}
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# }}}
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error_message() { # {{{
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local_error_message="${1}"
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local_error_code="${2}"
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## Print message
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printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}"
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exit "${local_error_code:=66}"
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}
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# }}}
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is_var_empty() { # {{{
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## Return False by default
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return_var_empty="1"
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## Total number of variables to test
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local_total_var_empty="${#}"
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loop_count_var_empty="0"
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## While it remains a variable to test
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while [ "${local_total_var_empty}" -gt "${loop_count_var_empty}" ]; do
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debug_message "is_var_empty − \
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Test var: ${1}."
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### Test if this is empty and set return value to True
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[ -z "${1}" ] && return_var_empty="0"
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### Increase the number of tested variables
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loop_count_var_empty=$((loop_count_var_empty+1))
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### Shift to the next variable
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shift
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done
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unset local_total_var_empty
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unset loop_count_var_empty
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return "${return_var_empty}"
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}
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# }}}
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is_file_empty() { # {{{
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local_file="${1}"
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## File is empty by default
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return_is_file_empty="0"
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### Check if the file is empty
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if [ ! -s "${local_file}" ]; then
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return_is_file_empty="0"
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debug_message "is_file_empty − \
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The file ${RED}${local_file}${COLOR_DEBUG} is empty or doesn't exists."
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else
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return_is_file_empty="1"
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debug_message "is_file_empty − \
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The file ${RED}${local_file}${COLOR_DEBUG} exists and has a size greater than zero."
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fi
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return "${return_is_file_empty}"
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}
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# }}}
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define_vars() { # {{{
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## If gitea_bin_path wasn't defined (argument) {{{
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## Use default value
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is_var_empty "${gitea_bin_path}" \
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&& gitea_bin_path="${GITEA_BIN_PATH_DEFAULT}"
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## }}}
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## If gitea_download wasn't defined (argument) {{{
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## Use default value
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is_var_empty "${gitea_download}" \
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&& gitea_download="${GITEA_DOWNLOAD_DEFAULT}"
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## }}}
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## Directory where is current Gitea bin
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gitea_bin_dir=$(readlink -m $(dirname "${gitea_bin_path}"))
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## Main Gitea repo's URL
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gitea_repo_url="https://github.com/go-gitea/gitea"
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## Gitea's versions
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gitea_current_version=$("${gitea_bin_path}" --version | cut --delimiter=' ' --fields=3)
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gitea_new_version=$("${PROGDIR}"/releasetags "${gitea_repo_url}" | grep --invert-match --extended-regexp -- '(dev|rc|^$)' | head --lines=1 | sed 's/v//')
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## Gitea new version's URL
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if [ "${gitea_download_github}" -eq "0" ]; then
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gitea_new_version_url="https://github.com/go-gitea/gitea/releases/download/v${gitea_new_version}/gitea-${gitea_new_version}-linux-amd64"
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else
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gitea_new_version_url="https://dl.gitea.io/gitea/${gitea_new_version}/gitea-${gitea_new_version}-linux-amd64"
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fi
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## Gitea new version's path
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gitea_new_bin_path="${gitea_bin_path}.to.upgrade.v${gitea_new_version}"
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## Temp file to monitor
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gitea_new_version_file="/tmp/.github.gitea.upgrade"
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}
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# }}}
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main() { # {{{
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define_vars
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# If gitea_bin_path is empty {{{
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# Exit with error
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is_var_empty "${gitea_current_version}" \
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&& error_message "Can't get current version from Gitea's binary (${gitea_bin_path})." 1
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# }}}
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# If gitea_new_version is empty {{{
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# Exit with error
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is_var_empty "${gitea_new_version}" \
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&& error_message "Can't get new version (${gitea_new_version}) from Gitea's repository (${gitea_repo_url})." 1
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# }}}
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# If an update is available {{{
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if [ "${gitea_current_version}" != "${gitea_new_version}" ]; then
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debug_message "Test version − \
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Current version (${RED}${gitea_current_version}${COLOR_DEBUG}) and new one (${RED}${gitea_new_version}${COLOR_DEBUG}) seems different."
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## Create a temp file to monitor
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touch -- "${gitea_new_version_file}"
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printf '\e[1;35m%-6s\e[m\n' "An upgrade is available for Gitea (current : ${gitea_current_version}) : ${gitea_new_version}." >> "${gitea_new_version_file}"
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## If new release should be downloaded
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if [ "${gitea_download}" -eq "0" ]; then
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### Download and prepare the new bin {{{
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debug_message "Test version − \
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Download Gitea binary (from ${gitea_new_version_url} ) to ${RED}${gitea_new_bin_path}${COLOR_DEBUG} ."
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wget --quiet "${gitea_new_version_url}" --output-document="${gitea_new_bin_path}"
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### }}}
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### If the new binary file is empty {{{
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### Ensure to remove (don't want an empty upgrade file)
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### Exit with error
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is_file_empty "${gitea_new_bin_path}" \
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&& rm --force -- "${gitea_new_bin_path}" \
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&& error_message "New binary (${gitea_new_bin_path}) is empty or doesn't exists." 2
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### }}}
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chmod +x -- "${gitea_new_bin_path}"
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fi
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# }}}
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# Gitea is up-to-date {{{
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else
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debug_message "Test version − \
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The current version (${RED}${gitea_current_version}${COLOR_DEBUG}) is up-to-date."
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debug_message "Test version − \
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Ensure to remove temp file and any previous and unused releases."
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rm --force -- "${gitea_new_version_file}"
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find "${gitea_bin_dir}" -maxdepth 1 -type f -iname "gitea.to.upgrade*" -delete
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fi
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# }}}
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}
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# }}}
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# Manage arguments # {{{
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# This code can't be in a function due to arguments
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if [ ! "${NBARGS}" -eq "0" ]; then
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manage_arg="0"
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## If the first argument is not an option
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if ! printf -- '%s' "${1}" | grep --quiet --extended-regexp -- "^-+";
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then
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## Consider it as the path to Gitea
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gitea_bin_path="${1}"
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## Move to the next argument
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shift
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manage_arg=$((manage_arg+1))
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fi
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# Parse all options (start with a "-") one by one
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while printf -- '%s' "${1}" | grep --quiet --extended-regexp -- "^-+"; do
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case "${1}" in
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-b|--bin|-p|--path ) ## Define gitea_bin_path
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## Move to the next argument
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shift
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## Define var
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readonly gitea_bin_path="${1}"
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;;
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--download ) ## Enable download_mode
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## Try to download new release if available
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gitea_download=0
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;;
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--github ) ## Download new release from Github
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## Try to download new release from Github
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gitea_download_github=0
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;;
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-d|--debug ) ## debug
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DEBUG=0
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;;
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-h|--help ) ## help
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usage
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## Exit after help informations
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exit 0
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;;
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-- ) ## End of options list
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## End the while loop
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break
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;;
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* ) ## unknow option
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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usage
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exit 1
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;;
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esac
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debug_message "Arguments management − \
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${RED}${1}${COLOR_DEBUG} option managed."
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## Move to the next argument
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shift
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manage_arg=$((manage_arg+1))
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done
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debug_message "Arguments management − \
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${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
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else
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debug_message "Arguments management − \
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No arguments/options to manage."
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fi
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# }}}
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main
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exit 0
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