On Fri, 20 May 2011 17:39:22 +0200 Jeroen Roovers <j...@gentoo.org> wrote:
> for a while now I've been wondering if all those sed scripts in all
> those ebuilds are really effective.
This took rather long to find some spare time for.
Plonk the attached bash script into /etc/portage/bashrc.d (which you
source in /etc/portage/bashrc or something) and you should probably be
on your merry way.
The script probably doesn't catch all cases, but sed use in most
ebuilds is pretty standard.
jer#!/bin/bash
SED=$(type -P sed)
sed() {
case ${FUNCNAME[1]} in
# we only care about direct calls in some ebuild phases
src_prepare|src_configure|src_compile|src_install)
local arg args file files scripts
while [[ $# -gt 0 ]]; do
arg="${1}"
if [ -f "${arg}" ]; then
files+=" ${arg}"
else
case ${arg} in
-e) : ;;
--expression=*) scripts+=(
"${arg/--expression=}" ) ;;
-i*|--in-place=*) : ;;
-f)
local
scriptfile="${arg}"
shift
scriptfile+=" ${arg}"
scripts+=(
"${scriptfile}" )
;;
--file=*) scripts+=(
"${arg/--file=}" ) ;;
-*) args+=" ${arg}" ;;
*) scripts+=( "${arg}" ) ;;
esac
fi
shift
done
for file in ${files}; do
for idx in ${!scripts[@]}; do
${SED} ${args} -e
"${scripts[@]:${idx}:1}" ${file} > ${file}.jer-qa-sed
if cmp -s ${file}{,.jer-qa-sed}; then
echo -e "\033[01;33m!!! JeR-QA:
sed expression "${scripts[@]:${idx}:1}" did not change ${file}\033[00;00m" \
| tee -a ${T}/sed.log >
/dev/stderr
else
mv ${file}{.jer-qa-sed,}
fi
done
done
;;
*) ${SED} "${@}"
;;
esac
}
