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#compdef grunt
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# -----------------------------------------------------------------------------
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# _grunt
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#
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# Completion script for grunt.
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# - https://github.com/gruntjs/grunt
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# - https://github.com/gruntjs/grunt-cli
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#
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# -----------------------------------------------------------------------------
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#
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# Version : 0.1.0
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# Author : Yonchu <yuyuchu3333@gmail.com>
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# License : MIT License
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# Repository : https://github.com/yonchu/grunt-zsh-completion
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# Last Change : 22 Jul 2013.
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#
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# Copyright (c) 2013 Yonchu.
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#
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# -----------------------------------------------------------------------------
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# USAGE
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# -----
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#
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# Enable caching:
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#
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# If you want to use the cache, set the followings in your .zshrc:
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#
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# zstyle ':completion:*' use-cache yes
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#
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#
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# Settings:
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#
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# - Show grunt file path:
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# zstyle ':completion::complete:grunt::options:' show_grunt_path yes
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#
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# - Cache expiration days (default: 7):
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# zstyle ':completion::complete:grunt::options:' expire 1
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#
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# - Not update options cache if target gruntfile is changed.
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# zstyle ':completion::complete:grunt::options:' no_update_options yes
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#
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# Note that if you change the zstyle settings,
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# you should delete the cache file and restart zsh.
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#
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# $ rm ~/.zcompcache/grunt
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# $ exec zsh
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#
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# -----------------------------------------------------------------------------
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function _grunt() {
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local curcontext="$curcontext" update_policy state
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local show_grunt_path update_msg gruntfile opts tasks
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# Setup cache-policy.
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zstyle -s ":completion:${curcontext}:" cache-policy update_policy
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if [[ -z $update_policy ]]; then
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zstyle ":completion:${curcontext}:" cache-policy __grunt_caching_policy
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fi
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# Check show_path option.
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zstyle -b ":completion:${curcontext}:options:" show_grunt_path show_grunt_path
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# Get current gruntfile.
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gruntfile=$(__grunt_get_gruntfile)
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# Initialize opts and tasks.
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opts=()
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tasks=()
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# Add help options.
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opts+=('(- 1 *)'{-h,--help}'[Display this help text.]')
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## Complete without gruntfile.
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if [[ ! -f $gruntfile ]]; then
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_arguments "${opts[@]}"
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return
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fi
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## Complete with gruntfile.
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# Retrieve cache.
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if ! __grunt_update_cache "$gruntfile"; then
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update_msg=' (cache updated)'
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fi
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# Make optioins completion.
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if [[ ${#__grunt_opts} -gt 0 ]]; then
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opts+=("${__grunt_opts[@]}")
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fi
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# Complete arguments.
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_arguments \
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"${opts[@]}" \
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'*: :->tasks' \
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&& return
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case $state in
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tasks)
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if [[ $show_grunt_path == 'yes' ]]; then
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update_msg="$update_msg: ${${gruntfile/#$HOME/~}%/}"
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fi
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# Make tasks completion.
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if [[ ${#__grunt_tasks} -gt 0 ]]; then
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tasks+=("${__grunt_tasks[@]}")
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_describe -t grunt-task "$verbose grunt task$update_msg" tasks || return 1
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fi
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;;
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esac
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return 0
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}
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# Cache policy:
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# The cache file name: grunt
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# The cache variable name: __grunt_version __grunt_gruntfile __grunt_opts __grunt_tasks
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function __grunt_update_cache() {
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# TODO
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local version='0.1.0'
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local is_updating=0
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local gruntfile="$1"
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local grunt_info no_update_options cache_path
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# Check no_update_options option.
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zstyle -b ":completion:${curcontext}:options:" no_update_options no_update_options
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if ! ( (( $+__grunt_gruntfile )) \
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&& (( $+__grunt_opts )) \
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&& (( $+__grunt_tasks )) ) \
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&& ! _retrieve_cache 'grunt'; then
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is_updating=1
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fi
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if [[ $gruntfile != $__grunt_gruntfile ]]; then
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# Except for --help options.
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__grunt_gruntfile=$gruntfile
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if [[ $no_update_options == 'yes' ]]; then
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if [[ $PREFIX == ${PREFIX#-} ]]; then
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# Not options completions.
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is_updating=1
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elif [[ ${#__grunt_opts} -lt 2 ]]; then
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is_updating=1
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else
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unset __grunt_gruntfile
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fi
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else
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is_updating=1
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fi
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else
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if [[ $PREFIX != ${PREFIX#-} && ${#__grunt_opts} -gt 1 ]]; then
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unset __grunt_gruntfile
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fi
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fi
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if _cache_invalid 'grunt'; then
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is_updating=1
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fi
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# Check _grunt version.
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if [[ $__grunt_version != $version ]]; then
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is_updating=1
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fi
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if [[ $is_updating -ne 0 ]]; then
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# Update caceh.
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__grunt_version=$version
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__grunt_gruntfile=$gruntfile
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is_updating=1
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grunt_info=$(grunt --help --no-color --gruntfile "$__grunt_gruntfile" 2>/dev/null)
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__grunt_opts=(${(f)"$(__grunt_get_opts "$grunt_info")"})
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__grunt_tasks=(${(f)"$(__grunt_get_tasks "$grunt_info")"})
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_store_cache 'grunt' __grunt_version __grunt_gruntfile __grunt_opts __grunt_tasks
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fi
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return $is_updating
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}
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function __grunt_get_tasks() {
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echo -E "$1" \
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| grep 'Available tasks' -A 100 \
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| grep '^ ' \
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| sed -e 's/^[[:blank:]]*//' -e 's/[[:blank:]]*$//' \
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| sed -e 's/ /:/'
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}
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function __grunt_get_opts() {
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local opt_hunk opt_sep opt_num line opt
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opt_hunk=$(echo -E "$1" \
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| grep 'Options$' -A 100 \
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| sed '1 d' \
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| sed -e 's/[[:blank:]]*$//' \
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)
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opt_sep=()
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opt_hunk=(${(f)opt_hunk})
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opt_num=0
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for line in "$opt_hunk[@]"; do
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opt=$(echo -E "$line" | sed -e 's/^[[:blank:]]*//')
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if [[ $line == $opt ]]; then
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break
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fi
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if [[ $opt != ${opt#-} ]]; then
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# Start with -
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(( opt_num++ ))
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opt=$(echo -E "$opt" | sed 's/^\(\(--[^ ]*\)\(, \(-[^ ]*\)\)*\) */\2\\t\4\\\t/')
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fi
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opt_sep[$opt_num]=("${opt_sep[$opt_num]}${opt}")
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done
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for line in "$opt_sep[@]"; do
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opt=(${(s:\t:)line})
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if [[ ${opt[1]} == '--help' ]]; then
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continue
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fi
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if [[ ${#opt} -eq 2 ]]; then
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echo -E "(${opt[1]})${opt[1]}[${opt[2]}]"
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else
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echo -E "(${opt[1]},${opt[2]})${opt[1]}[${opt[3]}]"
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echo -E "(${opt[1]},${opt[2]})${opt[2]}[${opt[3]}]"
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fi
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done
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}
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function __grunt_get_gruntfile() {
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local gruntfile
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local curpath="$PWD"
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while [ "$curpath" ]; do
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for gruntfile in "$curpath/"{G,g}runtfile.{js,coffee}; do
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if [[ -e "$gruntfile" ]]; then
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echo "$gruntfile"
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return
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fi
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done
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curpath=${curpath%/*}
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done
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return 1
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}
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function __grunt_caching_policy() {
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# Returns status zero if the completions cache needs rebuilding.
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# Rebuild if .agignore more recent than cache.
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if [[ -f $__grunt_gruntfile && $__grunt_gruntfile -nt $1 ]]; then
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# Invalid cache because gruntfile is old.
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return 0
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fi
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local -a oldp
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local expire
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zstyle -s ":completion:${curcontext}:options:" expire expire || expire=7
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# Rebuild if cache is more than $expire days.
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oldp=( "$1"(Nm+$expire) )
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(( $#oldp ))
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}
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compdef _grunt grunt
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