mirror of https://github.com/docker/cli.git
Improve comments in bash completion
Signed-off-by: Harald Albers <github@albersweb.de>
This commit is contained in:
Harald Albers
Tibor Vass
parent
a511da3c57
commit
ba501cf4fd
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@ -59,8 +59,8 @@ __docker_q() {
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docker ${host:+-H "$host"} ${config:+--config "$config"} 2>/dev/null "$@"
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}
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# Returns a list of containers. Additional arguments to `docker ps`
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# may be specified in order to filter the list, e.g.
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# __docker_containers returns a list of containers. Additional options to
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# `docker ps` may be specified in order to filter the list, e.g.
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# `__docker_containers --filter status=running`
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# By default, only names are returned.
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# Set DOCKER_COMPLETION_SHOW_CONTAINER_IDS=yes to also complete IDs.
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@ -83,8 +83,8 @@ __docker_containers() {
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__docker_q ps --format "$format" "$@"
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}
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# Applies completion of containers based on the current value of `$cur` or
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# the value of the optional first option `--cur`, if given.
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# __docker_complete_containers applies completion of containers based on the current
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# value of `$cur` or the value of the optional first option `--cur`, if given.
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# Additional filters may be appended, see `__docker_containers`.
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__docker_complete_containers() {
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local current="$cur"
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@ -175,8 +175,8 @@ __docker_complete_containers_and_images() {
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COMPREPLY+=( "${containers[@]}" )
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}
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# Returns a list of all networks. Additional arguments to `docker network ls`
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# may be specified in order to filter the list, e.g.
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# __docker_networks returns a list of all networks. Additional options to
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# `docker network ls` may be specified in order to filter the list, e.g.
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# `__docker_networks --filter type=custom`
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# By default, only names are returned.
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# Set DOCKER_COMPLETION_SHOW_NETWORK_IDS=yes to also complete IDs.
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@ -199,8 +199,8 @@ __docker_networks() {
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__docker_q network ls --format "$format" "$@"
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}
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# Applies completion of networks based on the current value of `$cur` or
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# the value of the optional first option `--cur`, if given.
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# __docker_complete_networks applies completion of networks based on the current
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# value of `$cur` or the value of the optional first option `--cur`, if given.
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# Additional filters may be appended, see `__docker_networks`.
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__docker_complete_networks() {
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local current="$cur"
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@ -216,8 +216,8 @@ __docker_complete_containers_in_network() {
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COMPREPLY=( $(compgen -W "$containers" -- "$cur") )
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}
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# Returns a list of all volumes. Additional arguments to `docker volume ls`
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# may be specified in order to filter the list, e.g.
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# __docker_volumes returns a list of all volumes. Additional options to
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# `docker volume ls` may be specified in order to filter the list, e.g.
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# `__docker_volumes --filter dangling=true`
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# Because volumes do not have IDs, this function does not distinguish between
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# IDs and names.
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@ -225,8 +225,8 @@ __docker_volumes() {
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__docker_q volume ls -q "$@"
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}
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# Applies completion of volumes based on the current value of `$cur` or
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# the value of the optional first option `--cur`, if given.
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# __docker_complete_volumes applies completion of volumes based on the current
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# value of `$cur` or the value of the optional first option `--cur`, if given.
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# Additional filters may be appended, see `__docker_volumes`.
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__docker_complete_volumes() {
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local current="$cur"
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@ -237,7 +237,7 @@ __docker_complete_volumes() {
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COMPREPLY=( $(compgen -W "$(__docker_volumes "$@")" -- "$current") )
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}
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# Returns a list of all plugins of a given type.
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# __docker_plugins returns a list of all plugins of a given type.
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# The type has to be specified with the mandatory option `--type`.
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# Valid types are: Network, Volume, Authorization.
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# Completions may be added or removed with `--add` and `--remove`
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@ -270,8 +270,8 @@ __docker_plugins() {
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echo "${plugins[@]} ${add[@]}"
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}
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# Applies completion of plugins based on the current value of `$cur` or
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# the value of the optional first option `--cur`, if given.
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# __docker_complete_plugins applies completion of plugins based on the current
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# value of `$cur` or the value of the optional first option `--cur`, if given.
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# The plugin type has to be specified with the next option `--type`.
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__docker_complete_plugins() {
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local current="$cur"
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@ -290,13 +290,13 @@ __docker_complete_runtimes() {
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COMPREPLY=( $(compgen -W "$(__docker_runtimes)" -- "$cur") )
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}
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# Returns a list of all nodes. Additional arguments to `docker node`
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# may be specified in order to filter the node list, e.g.
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# __docker_nodes returns a list of all nodes. Additional options to
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# `docker node ls` may be specified in order to filter the list, e.g.
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# `__docker_nodes --filter role=manager`
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# By default, only node names are completed.
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# By default, only node names are returned.
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# Set DOCKER_COMPLETION_SHOW_NODE_IDS=yes to also complete node IDs.
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# An optional first argument `--id|--name` may be used to limit
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# the output to the IDs or names of matching nodes. This setting takes
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# An optional first option `--id|--name` may be used to limit the
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# output to the IDs or names of matching items. This setting takes
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# precedence over the environment setting.
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__docker_nodes() {
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local fields='$2' # default: node name only
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@ -312,11 +312,11 @@ __docker_nodes() {
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__docker_q node ls "$@" | tr -d '*' | awk "NR>1 {print $fields}"
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}
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# Applies completion of nodes based on the current value of `$cur` or
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# the value of the optional first argument `--cur`, if given.
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# __docker_complete_nodes applies completion of nodes based on the current
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# value of `$cur` or the value of the optional first option `--cur`, if given.
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# Additional filters may be appended, see `__docker_nodes`.
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__docker_complete_nodes() {
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local current=$cur
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local current="$cur"
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if [ "$1" = "--cur" ] ; then
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current="$2"
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shift 2
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@ -329,13 +329,13 @@ __docker_complete_nodes_plus_self() {
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COMPREPLY+=( self )
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}
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# Returns a list of all services. Additional arguments to `docker service ls`
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# may be specified in order to filter the service list, e.g.
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# __docker_services returns a list of all services. Additional options to
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# `docker service ls` may be specified in order to filter the list, e.g.
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# `__docker_services --filter name=xxx`
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# By default, only node names are completed.
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# Set DOCKER_COMPLETION_SHOW_SERVICE_IDS=yes to also complete service IDs.
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# An optional first argument `--id|--name` may be used to limit
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# the output to the IDs or names of matching services. This setting takes
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# By default, only node names are returned.
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# Set DOCKER_COMPLETION_SHOW_SERVICE_IDS=yes to also complete IDs.
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# An optional first option `--id|--name` may be used to limit the
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# output to the IDs or names of matching items. This setting takes
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# precedence over the environment setting.
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__docker_services() {
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local fields='$2' # default: service name only
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@ -351,11 +351,11 @@ __docker_services() {
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__docker_q service ls "$@" | awk "NR>1 {print $fields}"
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}
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# Applies completion of services based on the current value of `$cur` or
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# the value of the optional first argument `--cur`, if given.
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# __docker_complete_services applies completion of services based on the current
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# value of `$cur` or the value of the optional first option `--cur`, if given.
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# Additional filters may be appended, see `__docker_services`.
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__docker_complete_services() {
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local current=$cur
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local current="$cur"
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if [ "$1" = "--cur" ] ; then
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current="$2"
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shift 2
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@ -363,16 +363,18 @@ __docker_complete_services() {
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COMPREPLY=( $(compgen -W "$(__docker_services "$@")" -- "$current") )
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}
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# Appends the word passed as an argument to every word in `$COMPREPLY`.
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# Normally you do this with `compgen -S`. This function exists so that you can use
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# __docker_append_to_completions appends the word passed as an argument to every
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# word in `$COMPREPLY`.
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# Normally you do this with `compgen -S` while generating the completions.
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# This function allows you to append a suffix later. It allows you to use
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# the __docker_complete_XXX functions in cases where you need a suffix.
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__docker_append_to_completions() {
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COMPREPLY=( ${COMPREPLY[@]/%/"$1"} )
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}
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# Finds the position of the first word that is neither option nor an option's argument.
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# If there are options that require arguments, you should pass a glob describing those
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# options, e.g. "--option1|-o|--option2"
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# __docker_pos_first_nonflag finds the position of the first word that is neither
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# option nor an option's argument. If there are options that require arguments,
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# you should pass a glob describing those options, e.g. "--option1|-o|--option2"
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# Use this function to restrict completions to exact positions after the argument list.
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__docker_pos_first_nonflag() {
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local argument_flags=$1
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@ -405,8 +407,8 @@ __docker_pos_first_nonflag() {
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echo $counter
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}
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# If we are currently completing the value of a map option (key=value)
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# which matches the extglob given as an argument, returns key.
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# __docker_map_key_of_current_option returns `key` if we are currently completing the
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# value of a map option (`key=value`) which matches the extglob given as an argument.
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# This function is needed for key-specific completions.
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__docker_map_key_of_current_option() {
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local glob="$1"
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@ -430,9 +432,9 @@ __docker_map_key_of_current_option() {
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[[ ${words[$glob_pos]} == @($glob) ]] && echo "$key"
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}
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# Returns the value of the first option matching option_glob.
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# Valid values for option_glob are option names like '--log-level' and
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# globs like '--log-level|-l'
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# __docker_value_of_option returns the value of the first option matching `option_glob`.
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# Valid values for `option_glob` are option names like `--log-level` and globs like
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# `--log-level|-l`
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# Only positions between the command and the current word are considered.
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__docker_value_of_option() {
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local option_extglob=$(__docker_to_extglob "$1")
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@ -449,8 +451,8 @@ __docker_value_of_option() {
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done
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}
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# Transforms a multiline list of strings into a single line string
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# with the words separated by "|".
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# __docker_to_alternatives transforms a multiline list of strings into a single line
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# string with the words separated by `|`.
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# This is used to prepare arguments to __docker_pos_first_nonflag().
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__docker_to_alternatives() {
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local parts=( $1 )
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@ -458,14 +460,14 @@ __docker_to_alternatives() {
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echo "${parts[*]}"
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}
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# Transforms a multiline list of options into an extglob pattern
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# __docker_to_extglob transforms a multiline list of options into an extglob pattern
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# suitable for use in case statements.
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__docker_to_extglob() {
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local extglob=$( __docker_to_alternatives "$1" )
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echo "@($extglob)"
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}
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# Subcommand processing.
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# __docker_subcommands processes subcommands
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# Locates the first occurrence of any of the subcommands contained in the
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# first argument. In case of a match, calls the corresponding completion
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# function and returns 0.
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@ -494,7 +496,7 @@ __docker_subcommands() {
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return 1
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}
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# suppress trailing whitespace
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# __docker_nospace suppresses trailing whitespace
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__docker_nospace() {
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# compopt is not available in ancient bash versions
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type compopt &>/dev/null && compopt -o nospace
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@ -757,8 +759,8 @@ __docker_complete_restart() {
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return 1
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}
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# a selection of the available signals that is most likely of interest in the
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# context of docker containers.
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# __docker_complete_signals returns a subset of the available signals that is most likely
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# relevant in the context of docker containers
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__docker_complete_signals() {
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local signals=(
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SIGCONT
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@ -783,8 +785,8 @@ __docker_complete_user_group() {
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fi
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}
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# global options that may appear after the docker command
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_docker_docker() {
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# global options that may appear after the docker command
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local boolean_options="
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$global_boolean_options
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--help
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