add docker completion
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2 changed files with 215 additions and 1 deletions
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@ -123,7 +123,9 @@ export EDITOR=vim
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alias wezterm='flatpak run org.wezfurlong.wezterm'
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fpath=(~/.zsh/completion $fpath)
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autoload -Uz compinit && compinit -i
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fpath=(~/.docker/completions \\$fpath)
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autoload -Uz compinit
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compinit
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eval "$(starship init zsh)"
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212
private_dot_docker/completions/_docker
Normal file
212
private_dot_docker/completions/_docker
Normal file
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@ -0,0 +1,212 @@
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#compdef docker
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compdef _docker docker
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# zsh completion for docker -*- shell-script -*-
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__docker_debug()
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{
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local file="$BASH_COMP_DEBUG_FILE"
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if [[ -n ${file} ]]; then
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echo "$*" >> "${file}"
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fi
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}
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_docker()
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{
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local shellCompDirectiveError=1
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local shellCompDirectiveNoSpace=2
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local shellCompDirectiveNoFileComp=4
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local shellCompDirectiveFilterFileExt=8
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local shellCompDirectiveFilterDirs=16
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local shellCompDirectiveKeepOrder=32
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local lastParam lastChar flagPrefix requestComp out directive comp lastComp noSpace keepOrder
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local -a completions
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__docker_debug "\n========= starting completion logic =========="
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__docker_debug "CURRENT: ${CURRENT}, words[*]: ${words[*]}"
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# The user could have moved the cursor backwards on the command-line.
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# We need to trigger completion from the $CURRENT location, so we need
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# to truncate the command-line ($words) up to the $CURRENT location.
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# (We cannot use $CURSOR as its value does not work when a command is an alias.)
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words=("${=words[1,CURRENT]}")
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__docker_debug "Truncated words[*]: ${words[*]},"
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lastParam=${words[-1]}
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lastChar=${lastParam[-1]}
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__docker_debug "lastParam: ${lastParam}, lastChar: ${lastChar}"
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# For zsh, when completing a flag with an = (e.g., docker -n=<TAB>)
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# completions must be prefixed with the flag
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setopt local_options BASH_REMATCH
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if [[ "${lastParam}" =~ '-.*=' ]]; then
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# We are dealing with a flag with an =
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flagPrefix="-P ${BASH_REMATCH}"
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fi
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# Prepare the command to obtain completions
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requestComp="${words[1]} __completeNoDesc ${words[2,-1]}"
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if [ "${lastChar}" = "" ]; then
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# If the last parameter is complete (there is a space following it)
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# We add an extra empty parameter so we can indicate this to the go completion code.
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__docker_debug "Adding extra empty parameter"
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requestComp="${requestComp} \"\""
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fi
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__docker_debug "About to call: eval ${requestComp}"
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# Use eval to handle any environment variables and such
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out=$(eval ${requestComp} 2>/dev/null)
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__docker_debug "completion output: ${out}"
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# Extract the directive integer following a : from the last line
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local lastLine
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while IFS='\n' read -r line; do
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lastLine=${line}
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done < <(printf "%s\n" "${out[@]}")
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__docker_debug "last line: ${lastLine}"
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if [ "${lastLine[1]}" = : ]; then
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directive=${lastLine[2,-1]}
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# Remove the directive including the : and the newline
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local suffix
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(( suffix=${#lastLine}+2))
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out=${out[1,-$suffix]}
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else
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# There is no directive specified. Leave $out as is.
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__docker_debug "No directive found. Setting do default"
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directive=0
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fi
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__docker_debug "directive: ${directive}"
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__docker_debug "completions: ${out}"
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__docker_debug "flagPrefix: ${flagPrefix}"
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if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then
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__docker_debug "Completion received error. Ignoring completions."
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return
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fi
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local activeHelpMarker="_activeHelp_ "
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local endIndex=${#activeHelpMarker}
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local startIndex=$((${#activeHelpMarker}+1))
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local hasActiveHelp=0
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while IFS='\n' read -r comp; do
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# Check if this is an activeHelp statement (i.e., prefixed with $activeHelpMarker)
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if [ "${comp[1,$endIndex]}" = "$activeHelpMarker" ];then
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__docker_debug "ActiveHelp found: $comp"
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comp="${comp[$startIndex,-1]}"
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if [ -n "$comp" ]; then
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compadd -x "${comp}"
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__docker_debug "ActiveHelp will need delimiter"
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hasActiveHelp=1
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fi
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continue
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fi
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if [ -n "$comp" ]; then
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# If requested, completions are returned with a description.
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# The description is preceded by a TAB character.
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# For zsh's _describe, we need to use a : instead of a TAB.
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# We first need to escape any : as part of the completion itself.
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comp=${comp//:/\\:}
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local tab="$(printf '\t')"
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comp=${comp//$tab/:}
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__docker_debug "Adding completion: ${comp}"
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completions+=${comp}
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lastComp=$comp
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fi
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done < <(printf "%s\n" "${out[@]}")
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# Add a delimiter after the activeHelp statements, but only if:
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# - there are completions following the activeHelp statements, or
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# - file completion will be performed (so there will be choices after the activeHelp)
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if [ $hasActiveHelp -eq 1 ]; then
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if [ ${#completions} -ne 0 ] || [ $((directive & shellCompDirectiveNoFileComp)) -eq 0 ]; then
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__docker_debug "Adding activeHelp delimiter"
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compadd -x "--"
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hasActiveHelp=0
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fi
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fi
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if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then
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__docker_debug "Activating nospace."
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noSpace="-S ''"
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fi
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if [ $((directive & shellCompDirectiveKeepOrder)) -ne 0 ]; then
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__docker_debug "Activating keep order."
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keepOrder="-V"
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fi
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if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then
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# File extension filtering
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local filteringCmd
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filteringCmd='_files'
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for filter in ${completions[@]}; do
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if [ ${filter[1]} != '*' ]; then
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# zsh requires a glob pattern to do file filtering
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filter="\*.$filter"
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fi
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filteringCmd+=" -g $filter"
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done
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filteringCmd+=" ${flagPrefix}"
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__docker_debug "File filtering command: $filteringCmd"
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_arguments '*:filename:'"$filteringCmd"
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elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then
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# File completion for directories only
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local subdir
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subdir="${completions[1]}"
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if [ -n "$subdir" ]; then
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__docker_debug "Listing directories in $subdir"
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pushd "${subdir}" >/dev/null 2>&1
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else
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__docker_debug "Listing directories in ."
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fi
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local result
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_arguments '*:dirname:_files -/'" ${flagPrefix}"
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result=$?
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if [ -n "$subdir" ]; then
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popd >/dev/null 2>&1
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fi
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return $result
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else
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__docker_debug "Calling _describe"
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if eval _describe $keepOrder "completions" completions $flagPrefix $noSpace; then
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__docker_debug "_describe found some completions"
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# Return the success of having called _describe
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return 0
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else
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__docker_debug "_describe did not find completions."
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__docker_debug "Checking if we should do file completion."
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if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then
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__docker_debug "deactivating file completion"
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# We must return an error code here to let zsh know that there were no
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# completions found by _describe; this is what will trigger other
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# matching algorithms to attempt to find completions.
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# For example zsh can match letters in the middle of words.
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return 1
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else
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# Perform file completion
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__docker_debug "Activating file completion"
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# We must return the result of this command, so it must be the
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# last command, or else we must store its result to return it.
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_arguments '*:filename:_files'" ${flagPrefix}"
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fi
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fi
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fi
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}
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# don't run the completion function when being source-ed or eval-ed
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if [ "$funcstack[1]" = "_docker" ]; then
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_docker
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fi
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