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completion.zsh
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#compdef {{ COMMAND_NAME }}
# This file is part of the Symfony package.
#
# (c) Fabien Potencier <fabien@symfony.com>
#
# For the full copyright and license information, please view
# https://symfony.com/doc/current/contributing/code/license.html
#
# zsh completions for {{ COMMAND_NAME }}
#
# References:
# - https://github.com/spf13/cobra/blob/master/zsh_completions.go
# - https://github.com/symfony/symfony/blob/5.4/src/Symfony/Component/Console/Resources/completion.bash
#
_sf_{{ COMMAND_NAME }}() {
local lastParam flagPrefix requestComp out comp
local -a completions
# The user could have moved the cursor backwards on the command-line.
# We need to trigger completion from the $CURRENT location, so we need
# to truncate the command-line ($words) up to the $CURRENT location.
# (We cannot use $CURSOR as its value does not work when a command is an alias.)
words=("${=words[1,CURRENT]}") lastParam=${words[-1]}
# For zsh, when completing a flag with an = (e.g., {{ COMMAND_NAME }} -n=<TAB>)
# completions must be prefixed with the flag
setopt local_options BASH_REMATCH
if [[ "${lastParam}" =~ '-.*=' ]]; then
# We are dealing with a flag with an =
flagPrefix="-P ${BASH_REMATCH}"
fi
# Prepare the command to obtain completions
requestComp="${words[0]} ${words[1]} _complete --no-interaction -szsh -a{{ VERSION }} -c$((CURRENT-1))" i=""
for w in ${words[@]}; do
w=$(printf -- '%b' "$w")
# remove quotes from typed values
quote="${w:0:1}"
if [ "$quote" = \' ]; then
w="${w%\'}"
w="${w#\'}"
elif [ "$quote" = \" ]; then
w="${w%\"}"
w="${w#\"}"
fi
# empty values are ignored
if [ ! -z "$w" ]; then
i="${i}-i${w} "
fi
done
# Ensure at least 1 input
if [ "${i}" = "" ]; then
requestComp="${requestComp} -i\" \""
else
requestComp="${requestComp} ${i}"
fi
# Use eval to handle any environment variables and such
out=$(eval ${requestComp} 2>/dev/null)
while IFS='\n' read -r comp; do
if [ -n "$comp" ]; then
# If requested, completions are returned with a description.
# The description is preceded by a TAB character.
# For zsh's _describe, we need to use a : instead of a TAB.
# We first need to escape any : as part of the completion itself.
comp=${comp//:/\\:}
local tab=$(printf '\t')
comp=${comp//$tab/:}
completions+=${comp}
fi
done < <(printf "%s\n" "${out[@]}")
# Let inbuilt _describe handle completions
eval _describe "completions" completions $flagPrefix
return $?
}
compdef _sf_{{ COMMAND_NAME }} {{ COMMAND_NAME }}

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