#compdef ccache
# zsh completion script for ccache

# Copyright 2018 CERN for the benefit of the LHCb Collaboration.

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# allow users to define their better compilers
# inspired by _cmake_compilers
# users could override with
#
# _ccache_compilers() {
#   local -a _ccache_compilers
#   _ccache_compilers=(gcc g++ clang clang++)
#   _wanted compilers expl "compiler" compadd -- $_ccache_compilers
# }
(( $+functions[_ccache_compilers] )) ||
_ccache_compilers() {
  _command_names -e
}

if [[ $words[2] == -* ]]; then
  # if the first argument starts with -, we are in configure-ccache mode
  # for this, _gnu_generic is okayish:
  #  * ccache --set-config=key=value won't complete beyond the first =
  #  * ccache --set-config=foo=bar --<TAB> won't suggest "set-config" another time
  if [[ $words[$CURRENT] == -* ]]; then
    # only call _gnu_generic without hyphen (files are not useful)
    _gnu_generic
  fi
elif [[ $CURRENT -eq 2 ]]; then
  _ccache_compilers
else
  # the command line already looks like 'ccache <compiler> ...'
  # forward to the completion function of the compiler
  (( CURRENT-- ))
  shift words
  _normal
fi