Add toolboxRun plugin
This commit is contained in:
cryobry
253
plugins/toolboxRun/toolboxRun
Normal file
253
plugins/toolboxRun/toolboxRun
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@@ -0,0 +1,253 @@
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#!/usr/bin/env bash
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# shellcheck disable=SC1090
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toolboxRun () {
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_printHelpAndExit () {
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cat <<-'EOF'
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USAGE
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toolboxRun -c NAME [-i NAME] [-r RELEASE] [--no-sh] [-h] [-s] [-d] [COMMANDS [ARGS...]]
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COMMANDS
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COMMANDS to run in the container (e.g. the current active file, an external
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build script, a program residing in the container, etc.)
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Can be empty (default entrypoint)
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OPTIONS
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--container NAME, -c NAME
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Assign a different NAME to the toolbox container. This is useful for creating multiple
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toolbox containers from the same base image, or for entirely customized containers from
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custom-built base images.
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If the toolbox container NAME already exists, the command passed to toolboxRun will be
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executed in the existing toolbox. If toolbox container NAME does not exist, it will be
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created and the COMMAND will then be run in it.
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--image NAME, -i NAME
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Change the NAME of the base image used to create the toolbox container. This is useful for
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creating containers from custom-built base images.
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--release RELEASE, -r RELEASE
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Create a toolbox container for a different operating system RELEASE than the host.
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--ephemeral
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The toolbox will be removed after the COMMAND is executed
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--recreate
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If the toolbox NAME already exists, it will first be removed and recreated
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--no-sh, -n
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Makes the first argument of COMMANDS executable and runs it directly
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--debug, -d
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Display debugging output
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--array, -a ARRAY
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Read arguments from an existing or new ARRAY (bash >= 4.3)
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This is useful to reduce parsing errors and recommended for build-wrapper plugins
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--silent, -s
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Don't output anything from this program (container output will still be passed to stdout
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if -it option is used instead of -d, see `man podman run` for more information)
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--help, -h
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Print this help message and exit (overrides --silent)
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EOF
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# Exit using passed exit code
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[[ -z $1 ]] && exit 0 || exit "$1"
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}
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_runDebug () {
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[[ -n $_debug ]] && echo "Running: " "$@"
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}
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_parseInput () {
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_runDebug "${FUNCNAME[0]}" "$@"
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# Unset vars
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unset _array
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declare -a _quiet=(">" "/dev/null" "2>&1")
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# Parse input and set switches using getopt
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if _input=$(getopt -o +c:i:r:a:ndsh -l container:,image:,release:,ephemeral,recreate,no-sh,debug,array:,silent,help -- "$@"); then
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eval set -- "$_input"
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while true; do
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case "$1" in
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--container|-c)
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shift && _cname="$1"
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;;
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--image|-i)
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shift && _image=("-i" "$1")
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;;
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--release|-r)
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shift && _release=("-r" "$1")
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;;
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--ephemeral)
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_ephemeral="true"
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;;
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--recreate)
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_recreate="true"
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;;
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--no-sh)
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_no_sh="true"
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;;
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--debug)
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_debug="true"
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unset _quiet
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echo "Debugging on!"
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;;
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--array|-a)
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shift && _array="$1"
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break
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;;
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--silent)
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#_silent="true"
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;;
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--help|-h)
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_printHelpAndExit 0
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;;
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--)
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shift
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break
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;;
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esac
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shift
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done
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else
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echo "Incorrect options provided"
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_printHelpAndExit 1
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fi
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# If array mode, load input array, reparse input, and return
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if [[ -n $_array ]]; then
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checkBashVersion
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local _n_array
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declare -n _n_array="$_array"
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_parseInput "${_n_array[@]}"
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return
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fi
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# Create _pre_commands_array from remaining arguments
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# shift getopt parameters away
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shift $((OPTIND - 1))
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# create array
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declare -a _cmd_array
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_program="$1"
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declare -ga _cmd_array=("$@")
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}
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_shWrap () {
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_runDebug "${FUNCNAME[0]}"
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if [[ -z $_no_sh ]]; then
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_cmd_array=("sh" "-c" "${_cmd_array[*]}")
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fi
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}
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_toolboxExists () {
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_runDebug "${FUNCNAME[0]}"
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toolbox list -c | cut -d ' ' -f 3 | grep -w "$_cname"
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}
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_toolboxCreate () {
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_runDebug "${FUNCNAME[0]}"
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toolbox create -c "$_cname" "${_image[@]}" "${_release[@]}" "${_quiet[@]}"
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}
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_toolboxRemove () {
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_runDebug "${FUNCNAME[0]}"
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toolbox rm -f "$_cname" "${_quiet[@]}"
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}
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_toolboxRun () {
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_runDebug "${FUNCNAME[0]}"
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[[ -n $_debug ]] && echo "_cmd_array:" "${_cmd_array[@]}"
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toolbox run -c "$_cname" "${_cmd_array[@]}"
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}
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__main () {
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# Get input
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_parseInput "$@"
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# Make sure the first argument is executable
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chmod +x "$_program"
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# Wrap command with `sh -c` by default
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_shWrap
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# Check if container exists
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if _toolboxExists; then
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if [[ -n $_recreate || -n $_ephemeral ]]; then
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_toolboxRemove
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fi
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else
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_toolboxCreate
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fi
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_toolboxRun
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if [[ -n $_ephemeral ]]; then
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_toolboxRemove
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fi
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}
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# Allow this function to be executed directly
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__main "$@"
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}
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# Allow this file to be executed directly if not being sourced
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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# The following functions are usually handled by build-wrapper
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_getBaseDir () {
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# Get base directory name of where this script resides
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# https://stackoverflow.com/questions/59895/how-to-get-the-source-directory-of-a-bash-script-from-within-the-script-itself#comment54598418_246128
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_basedir=$(dirname "$(readlink -f "$0")")
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}
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_sourceFunctions () {
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# Get the location of this file
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_getBaseDir
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# Go up two directories
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ff="${_basedir%/*/*}/functions"
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# Source functions file
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if [[ -f "$ff" ]]; then
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source "$ff"
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else
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echo "Cannot find functions file: ${ff}"
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fi
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}
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_sourceFunctions
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toolboxRun "$@"
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fi
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