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Filename : _retrieve_cache

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#autoload
#
# Retrieval component of completions caching layer

local _cache_ident _cache_dir _cache_path _cache_policy
_cache_ident="$1"

if zstyle -t ":completion:${curcontext}:" use-cache; then
  # Decide which directory to retrieve cache from, and ensure it exists
  zstyle -s ":completion:${curcontext}:" cache-path _cache_dir
  : ${_cache_dir:=${ZDOTDIR:-$HOME}/.zcompcache}
  if [[ ! -d "$_cache_dir" ]]; then
    [[ -e "$_cache_dir" ]] &&
      _message "cache-dir ($_cache_dir) isn't a directory\!"
    return 1
  fi

  _cache_path="$_cache_dir/$_cache_ident"

  if [[ -e "$_cache_path" ]]; then
    _cache_invalid "$_cache_ident" && return 1

    . "$_cache_path"
    return 0
  else
    return 1
  fi
else
  return 1
fi