# valgrind(1) completion -*- shell-script -*-

_valgrind()
{
local cur prev words cword split
_init_completion -s || return

local i
# Note: intentionally using COMP_WORDS and COMP_CWORD instead of
# words and cword here due to splitting on = causing index differences
# (_command_offset assumes the former).
for (( i=1; i <= COMP_CWORD; i++ )); do
if [[ ${COMP_WORDS[i]} != @([-=])* && ${COMP_WORDS[i-1]} != = ]]; then
_command_offset $i
return
fi
done

local tool
for (( i=1; i < ${#words[@]}; i++ )); do
if [[ ${words[i]} == --tool=?* ]]; then
tool=${words[i]}
break
fi
done

case $prev in
-h|--help|--help-debug|--version)
return
;;
--tool)
# Tools seem to be named e.g. like memcheck-amd64-linux from which
# we want to grab memcheck.
COMPREPLY=( $( compgen -W '$(
for f in /usr{,/local}/lib{,64}/valgrind/*; do
[[ $f != *.so && -x $f ]] &&
sed -ne "s/^.*\/\(.*\)-\([^-]*\)-\([^-]*\)/\1/p" <<<$f
done )' -- "$cur" ) )
return
;;
--sim-hints)
COMPREPLY=( $( compgen -W 'lax-ioctls enable-outer' -- "$cur" ) )
return
;;
--soname-synonyms)
COMPREPLY=( $( compgen -W 'somalloc' -S = -- "$cur" ) )
[[ $COMPREPLY == *= ]] && compopt -o nospace
return
;;
--kernel-variant)
COMPREPLY=( $( compgen -W 'bproc' -- "$cur" ) )
return
;;
# callgrind:
--callgrind-out-file)
_filedir
return
;;
# exp-dhat:
--sort-by)
COMPREPLY=( $( compgen -W 'max-bytes-live tot-bytes-allocd
max-blocks-live' -- "$cur" ) )
return
;;
# massif:
--time-unit)
COMPREPLY=( $( compgen -W 'i ms B' -- "$cur" ) )
return
;;
# generic cases parsed from --help output
--+([-A-Za-z0-9_]))
local value=$( $1 --help-debug $tool 2>/dev/null | \
sed -ne "s|^[$' \t']*$prev=\([^$' \t']\{1,\}\).*|\1|p" )
case $value in
\<file*\>)
_filedir
return
;;
\<command\>)
compopt -o filenames
COMPREPLY=( $( compgen -c -- "$cur" ) )
return
;;
\<+([0-9])..+([0-9])\>)
COMPREPLY=( $( compgen -W "{${value:1:((${#value}-2))}}" \
-- "$cur" ) )
return
;;
# "yes", "yes|no", etc (but not "string", "STR",
# "hint1,hint2,...")
yes|+([-a-z0-9])\|+([-a-z0-9\|]))
COMPREPLY=( $( IFS='|' compgen -W '$value' -- "$cur" ) )
return
;;
esac
;;
esac

$split && return

if [[ $cur == -* ]]; then
COMPREPLY=( $( compgen -W '$( _parse_help "$1" "--help $tool" )' \
-- "$cur" ) )
[[ $COMPREPLY == *= ]] && compopt -o nospace
return
fi
} &&
complete -F _valgrind valgrind

# ex: ts=4 sw=4 et filetype=sh