referring to arguments in bash aliases
Hal Burgiss
hal at foobox.net
Thu Mar 4 09:51:00 UTC 2004
On Thu, Mar 04, 2004 at 08:15:51AM -0500, Timothy Stone wrote:
>
> It's a start right? ;) Am I headed down the right path? Did I read to
> much between the lines in the man pages for bash? Nothing on the web
> dives this far into aliases in bash. Much seems to skip arguments in the
> alias' replacement text.
Thats because aliases don't do arguments and function do. In fact,
AFAIK, any bash construct works in a function so they can be quite
involved and flexible if you want.
An rpm enhancing function from the bash_completeion proejct that
does tab completion of command line:
# rpm(8) completion
#
_rpm()
{
local cur prev
COMPREPLY=()
cur=${COMP_WORDS[COMP_CWORD]}
prev=${COMP_WORDS[COMP_CWORD-1]}
if [ $COMP_CWORD -eq 1 ]; then
# first parameter on line
case "$cur" in
-b*)
COMPREPLY=( $( compgen -W '-ba -bb -bc -bi -bl -bp -bs'\
-- $cur ) )
;;
-t*)
COMPREPLY=( $( compgen -W '-ta -tb -tc -it -tl -tp -ts'\
-- $cur ) )
;;
--*)
COMPREPLY=( $( compgen -W '--help --version --initdb \
--checksig --recompile --rebuild --resign --addsign \
--rebuilddb --showrc --setperms --setugids --tarbuild \
--eval --install --upgrade --query --freshen --erase \
--verify --querytags --rmsource --rmspec --clean \
--import' -- $cur ) )
;;
*)
COMPREPLY=( $( compgen -W '-b -e -F -i -q -t -U -V' \
-- $cur ) )
;;
esac
return 0
fi
case "$prev" in
--@(@(db|exclude)path|prefix|relocate|root))
_filedir -d
return 0
;;
--eval)
# get a list of macros
COMPREPLY=( $( sed -ne 's|^\(%'${cur#\%}'[^ '$'\t'']*\).*$|\1|p' \
/usr/lib/rpm/macros ) )
return 0
;;
--pipe)
COMPREPLY=( $( compgen -c -- $cur ) )
return 0
;;
--rcfile)
_filedir
return 0
;;
--specfile)
# complete on .spec files
_filedir spec
return 0
;;
--whatprovides)
if [[ "$cur" == */* ]]; then
_filedir
else
# complete on capabilities
COMPREPLY=( $( rpm -qa --queryformat \
'%{providename}\n' | grep "^$cur" ) )
fi
return 0
;;
--whatrequires)
# complete on capabilities
COMPREPLY=( $( rpm -qa --queryformat '%{requirename}\n' | \
grep "^$cur" ) )
return 0
;;
esac
case "${COMP_WORDS[1]}" in
-@([iFU]*|-install|-freshen|-upgrade))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--percent --force --test \
--replacepkgs --replacefiles --root --excludedocs \
--includedocs --noscripts --rcfile --ignorearch \
--dbpath --prefix --ignoreos --nodeps --allfiles \
--ftpproxy --ftpport --justdb --httpproxy --httpport \
--noorder --relocate --badreloc --notriggers \
--excludepath --ignoresize --oldpackage --define \
--eval --pipe --queryformat --repackage --nosuggests \
--nodigest --nosignature' -- $cur ) )
else
_filedir 'rpm'
fi
;;
-@(e|-erase))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--allmatches --noscripts \
--notriggers --nodeps --test --repackage' -- $cur ) )
else
rpm_installed_packages
fi
;;
-@(q*|-query))
# check whether we're doing file completion
if [ "${COMP_LINE#* -*([^ -])f}" != "$COMP_LINE" ]; then
_filedir
elif [ "${COMP_LINE#* -*([^ -])g}" != "$COMP_LINE" ]; then
rpm_group_completion
elif [ "${COMP_LINE#* -*([^ -])p}" != "$COMP_LINE" ]; then
# uninstalled package completion
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--scripts --root \
--rcfile --whatprovides --whatrequires \
--requires --triggeredby --ftpport --ftpproxy \
--httpproxy --httpport --provides --triggers \
--dump --changelog --dbpath --filesbypkg \
--define --eval --pipe --showrc --info --list \
--state --docfiles --configfiles --queryformat \
--conflicts --obsoletes --nodigest \
--nosignature' -- $cur ) )
else
_filedir 'rpm'
fi
else
# installed package completion
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--scripts --root \
--rcfile --whatprovides --whatrequires \
--requires --triggeredby --ftpport --ftpproxy \
--httpproxy --httpport --provides --triggers \
--dump --changelog --dbpath --specfile \
--querybynumber --last --filesbypkg --define \
--eval --pipe --showrc --info --list --state \
--docfiles --configfiles --queryformat \
--conflicts --obsoletes --pkgid --hdrid \
--fileid --tid --nodigest --nosignature' \
-- $cur ) )
elif [ "${COMP_LINE#* -*([^ -])a}" == "$COMP_LINE" ]; then
rpm_installed_packages
fi
fi
;;
-@(K|-checksig))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--nopgp --nogpg --nomd5 \
--nodigest --nosignature' -- $cur ) )
else
_filedir 'rpm'
fi
;;
-@([Vy]*|-verify))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--root --rcfile --dbpath \
--nodeps --nofiles --noscripts --nomd5 --querytags \
--specfile --whatrequires --whatprovides --nodigest \
--nosignature' -- $cur ) )
# check whether we're doing file completion
elif [ "${COMP_LINE#* -*([^ -])f}" != "$COMP_LINE" ]; then
_filedir
elif [ "${COMP_LINE#* -*([^ -])g}" != "$COMP_LINE" ]; then
rpm_group_completion
elif [ "${COMP_LINE#* -*([^ -])p}" != "$COMP_LINE" ]; then
_filedir 'rpm'
else
rpm_installed_packages
fi
;;
-[bt]*)
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--short-circuit --timecheck \
--clean --rmsource --rmspec --test --sign --buildroot \
--targetbuildarch --buildos --nobuild --nodeps \
--nodirtokens' -- $cur ) )
elif [[ ${COMP_WORDS[1]} == -b* ]]; then
_filedir 'spec'
else
_filedir '@(tgz|tar.@(gz|bz2))'
fi
;;
--re@(build|compile))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--nodeps --rmsource \
--rmspec --sign --nodirtokens' -- $cur ) )
else
_filedir 'src.rpm'
fi
;;
--tarbuild)
_filedir '@(tgz|tar.@(gz|bz2))'
;;
--@(re|add)sign)
_filedir 'rpm'
;;
--set@(perms|gids))
rpm_installed_packages
;;
--@(clean|rms@(ource|pec)))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--clean --rmsource \
--rmspec' -- $cur ) )
else
_filedir 'spec'
fi
;;
--@(import|dbpath|root))
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--import --dbpath --root' \
-- $cur ) )
else
_filedir
fi
;;
esac
return 0
}
complete -F _rpm $filenames rpm rpmbuild
## end
You might check your environment (ie set), RH probably has some functions already defined.
--
Hal Burgiss
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