diff options
Diffstat (limited to 'portage_with_autodep/bin/ebuild-helpers/ecompress')
| -rwxr-xr-x | portage_with_autodep/bin/ebuild-helpers/ecompress | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/portage_with_autodep/bin/ebuild-helpers/ecompress b/portage_with_autodep/bin/ebuild-helpers/ecompress new file mode 100755 index 0000000..b61421b --- /dev/null +++ b/portage_with_autodep/bin/ebuild-helpers/ecompress @@ -0,0 +1,161 @@ +#!/bin/bash +# Copyright 1999-2010 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +source "${PORTAGE_BIN_PATH:-/usr/lib/portage/bin}"/isolated-functions.sh + +if [[ -z $1 ]] ; then + helpers_die "${0##*/}: at least one argument needed" + exit 1 +fi + +# setup compression stuff +PORTAGE_COMPRESS=${PORTAGE_COMPRESS-bzip2} +[[ -z ${PORTAGE_COMPRESS} ]] && exit 0 + +if [[ ${PORTAGE_COMPRESS_FLAGS+set} != "set" ]] ; then + case ${PORTAGE_COMPRESS} in + bzip2|gzip) PORTAGE_COMPRESS_FLAGS="-9";; + esac +fi + +# decompress_args(suffix, binary) +# - suffix: the compression suffix to work with +# - binary: the program to execute that'll compress/decompress +# new_args: global array used to return revised arguments +decompress_args() { + local suffix=$1 binary=$2 + shift 2 + + # Initialize the global new_args array. + new_args=() + declare -a decompress_args=() + local x i=0 decompress_count=0 + for x in "$@" ; do + if [[ ${x%$suffix} = $x ]] ; then + new_args[$i]=$x + else + new_args[$i]=${x%$suffix} + decompress_args[$decompress_count]=$x + ((decompress_count++)) + fi + ((i++)) + done + + if [ $decompress_count -gt 0 ] ; then + ${binary} "${decompress_args[@]}" + if [ $? -ne 0 ] ; then + # Apparently decompression failed for one or more files, so + # drop those since we don't want to compress them twice. + new_args=() + local x i=0 + for x in "$@" ; do + if [[ ${x%$suffix} = $x ]] ; then + new_args[$i]=$x + ((i++)) + elif [[ -f ${x%$suffix} ]] ; then + new_args[$i]=${x%$suffix} + ((i++)) + else + # Apparently decompression failed for this one, so drop + # it since we don't want to compress it twice. + true + fi + done + fi + fi +} + +case $1 in + --suffix) + [[ -n $2 ]] && vecho "${0##*/}: --suffix takes no additional arguments" 1>&2 + + if [[ ! -e ${T}/.ecompress.suffix ]] ; then + set -e + tmpdir="${T}"/.ecompress$$.${RANDOM} + mkdir "${tmpdir}" + cd "${tmpdir}" + # we have to fill the file enough so that there is something + # to compress as some programs will refuse to do compression + # if it cannot actually compress the file + echo {0..1000} > compressme + ${PORTAGE_COMPRESS} ${PORTAGE_COMPRESS_FLAGS} compressme > /dev/null + # If PORTAGE_COMPRESS_FLAGS contains -k then we need to avoid + # having our glob match the uncompressed file here. + suffix=$(echo compressme.*) + [[ -z $suffix || "$suffix" == "compressme.*" ]] && \ + suffix=$(echo compressme*) + suffix=${suffix#compressme} + cd / + rm -rf "${tmpdir}" + echo "${suffix}" > "${T}/.ecompress.suffix" + fi + cat "${T}/.ecompress.suffix" + ;; + --bin) + [[ -n $2 ]] && vecho "${0##*/}: --bin takes no additional arguments" 1>&2 + + echo "${PORTAGE_COMPRESS} ${PORTAGE_COMPRESS_FLAGS}" + ;; + --queue) + shift + ret=0 + for x in "${@/%/.ecompress.file}" ; do + >> "$x" + ((ret|=$?)) + done + [[ $ret -ne 0 ]] && helpers_die "${0##*/} failed" + exit $ret + ;; + --dequeue) + [[ -n $2 ]] && vecho "${0##*/}: --dequeue takes no additional arguments" 1>&2 + find "${D}" -name '*.ecompress.file' -print0 \ + | sed -e 's:\.ecompress\.file::g' \ + | ${XARGS} -0 ecompress + find "${D}" -name '*.ecompress.file' -print0 | ${XARGS} -0 rm -f + ;; + --*) + helpers_die "${0##*/}: unknown arguments '$*'" + exit 1 + ;; + *) + # Since dodoc calls ecompress on files that are already compressed, + # perform decompression here (similar to ecompressdir behavior). + decompress_args ".Z" "gunzip -f" "$@" + set -- "${new_args[@]}" + decompress_args ".gz" "gunzip -f" "$@" + set -- "${new_args[@]}" + decompress_args ".bz2" "bunzip2 -f" "$@" + set -- "${new_args[@]}" + + mask_ext_re="" + set -f + for x in $PORTAGE_COMPRESS_EXCLUDE_SUFFIXES ; do + mask_ext_re+="|$x" + done + set +f + mask_ext_re="^(${mask_ext_re:1})\$" + declare -a filtered_args=() + i=0 + for x in "$@" ; do + [[ ${x##*.} =~ $mask_ext_re ]] && continue + [[ -s ${x} ]] || continue + filtered_args[$i]=$x + ((i++)) + done + [ $i -eq 0 ] && exit 0 + set -- "${filtered_args[@]}" + + # If a compressed version of the file already exists, simply + # delete it so that the compressor doesn't whine (bzip2 will + # complain and skip, gzip will prompt for input) + suffix=$(ecompress --suffix) + [[ -n ${suffix} ]] && echo -n "${@/%/${suffix}$'\001'}" | \ + tr '\001' '\000' | ${XARGS} -0 rm -f + # Finally, let's actually do some real work + "${PORTAGE_COMPRESS}" ${PORTAGE_COMPRESS_FLAGS} "$@" + ret=$? + [[ $ret -ne 0 ]] && helpers_die "${0##*/} failed" + exit $ret + ;; +esac |