diff options
Diffstat (limited to 'eclass/unpacker.eclass')
| -rw-r--r-- | eclass/unpacker.eclass | 179 |
1 files changed, 124 insertions, 55 deletions
diff --git a/eclass/unpacker.eclass b/eclass/unpacker.eclass index f6e83c53bf23..3d23151b636e 100644 --- a/eclass/unpacker.eclass +++ b/eclass/unpacker.eclass @@ -4,7 +4,7 @@ # @ECLASS: unpacker.eclass # @MAINTAINER: # base-system@gentoo.org -# @SUPPORTED_EAPIS: 5 6 7 8 +# @SUPPORTED_EAPIS: 6 7 8 # @BLURB: helpers for extraneous file formats and consistent behavior across EAPIs # @DESCRIPTION: # Some extraneous file formats are not part of PMS, or are only in certain @@ -16,21 +16,22 @@ # - support partial unpacks? case ${EAPI:-0} in - [5678]) ;; + [678]) ;; *) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;; esac if [[ -z ${_UNPACKER_ECLASS} ]]; then _UNPACKER_ECLASS=1 -inherit toolchain-funcs +inherit multiprocessing toolchain-funcs # @ECLASS_VARIABLE: UNPACKER_BZ2 # @USER_VARIABLE # @DEFAULT_UNSET # @DESCRIPTION: # Utility to use to decompress bzip2 files. Will dynamically pick between -# `pbzip2` and `bzip2`. Make sure your choice accepts the "-dc" options. +# `lbzip2`, `pbzip2` and `bzip2`. Make sure your choice accepts the "-dc" +# options. # Note: this is meant for users to set, not ebuilds. # @ECLASS_VARIABLE: UNPACKER_LZIP @@ -272,31 +273,39 @@ unpack_deb() { unpack_banner "${deb}" - # on AIX ar doesn't work out as their ar used a different format - # from what GNU ar (and thus what .deb files) produce - if [[ -n ${EPREFIX} ]] ; then - { - read # global header - [[ ${REPLY} = "!<arch>" ]] || die "${deb} does not seem to be a deb archive" - local f timestamp uid gid mode size magic - while read f timestamp uid gid mode size magic ; do - [[ -n ${f} && -n ${size} ]] || continue # ignore empty lines - if [[ ${f} = "data.tar"* ]] ; then - head -c "${size}" > "${f}" - else - head -c "${size}" > /dev/null # trash it - fi - done - } < "${deb}" - else - $(tc-getBUILD_AR) x "${deb}" || die - fi - - unpacker ./data.tar* - - # Clean things up #458658. No one seems to actually care about - # these, so wait until someone requests to do something else ... - rm -f debian-binary {control,data}.tar* + { + # on AIX ar doesn't work out as their ar used a different format + # from what GNU ar (and thus what .deb files) produce + if [[ -n ${EPREFIX} ]] ; then + { + read # global header + [[ ${REPLY} = "!<arch>" ]] || die "${deb} does not seem to be a deb archive" + local f timestamp uid gid mode size magic + while read f timestamp uid gid mode size magic ; do + [[ -n ${f} && -n ${size} ]] || continue # ignore empty lines + # GNU ar uses / as filename terminator (and .deb permits that) + f=${f%/} + if [[ ${f} = "data.tar"* ]] ; then + local decomp=$(_unpacker_get_decompressor "${f}") + head -c "${size}" | ${decomp:-cat} + assert "unpacking ${f} from ${deb} failed" + break + else + head -c "${size}" > /dev/null # trash it + fi + done + } < "${deb}" + else + local f=$( + $(tc-getBUILD_AR) t "${deb}" | grep ^data.tar + assert "data not found in ${deb}" + ) + local decomp=$(_unpacker_get_decompressor "${f}") + $(tc-getBUILD_AR) p "${deb}" "${f}" | ${decomp:-cat} + assert "unpacking ${f} from ${deb} failed" + fi + } | tar --no-same-owner -x + assert "unpacking ${deb} failed" } # @FUNCTION: unpack_cpio @@ -344,8 +353,11 @@ unpack_7z() { local p7z=$(find_unpackable_file "$1") unpack_banner "${p7z}" - local output="$(7z x -y "${p7z}")" + # warning: putting local and command substitution in a single call + # discards the exit status! + local output + output="$(7z x -y "${p7z}")" if [ $? -ne 0 ]; then echo "${output}" >&2 die "unpacking ${p7z} failed (arch=unpack_7z)" @@ -376,6 +388,73 @@ unpack_lha() { lha xfq "${lha}" || die "unpacking ${lha} failed (arch=unpack_lha)" } +# @FUNCTION: _unpacker_get_decompressor +# @INTERNAL +# @USAGE: <filename> +# @DESCRIPTION: +# Get decompressor command for specified filename. +_unpacker_get_decompressor() { + case ${1} in + *.bz2|*.tbz|*.tbz2) + local bzcmd=${PORTAGE_BZIP2_COMMAND:-$( + type -P lbzip2 || type -P pbzip2 || type -P bzip2 + )} + local bzuncmd=${PORTAGE_BUNZIP2_COMMAND:-${bzcmd} -d} + : ${UNPACKER_BZ2:=${bzuncmd}} + echo "${UNPACKER_BZ2} -c" + ;; + *.z|*.gz|*.tgz) + echo "gzip -dc" ;; + *.lzma|*.xz|*.txz) + echo "xz -T$(makeopts_jobs) -dc" ;; + *.lz) + : ${UNPACKER_LZIP:=$(type -P plzip || type -P pdlzip || type -P lzip)} + echo "${UNPACKER_LZIP} -dc" ;; + *.zst) + echo "zstd -dc" ;; + *.lz4) + echo "lz4 -dc" ;; + *.lzo) + echo "lzop -dc" ;; + esac +} + +# @FUNCTION: unpack_gpkg +# @USAGE: <gpkg file> +# @DESCRIPTION: +# Unpack the image subarchive of a GPKG package on-the-fly, preserving +# the original directory structure (i.e. into <gpkg-dir>/image). +unpack_gpkg() { + [[ $# -eq 1 ]] || die "Usage: ${FUNCNAME} <file>" + + local gpkg=$(find_unpackable_file "$1") + unpack_banner "${gpkg}" + + local l images=() + while read -r l; do + case ${l} in + */image.tar*.sig) + ;; + */image.tar*) + images+=( "${l}" ) + ;; + esac + done < <(tar -tf "${gpkg}" || die "unable to list ${gpkg}") + + if [[ ${#images[@]} -eq 0 ]]; then + die "No image.tar found in ${gpkg}" + elif [[ ${#images[@]} -gt 1 ]]; then + die "More than one image.tar found in ${gpkg}" + fi + + local decomp=$(_unpacker_get_decompressor "${images[0]}") + local dirname=${images[0]%/*} + mkdir -p "${dirname}" || die + tar -xOf "${gpkg}" "${images[0]}" | ${decomp:-cat} | + tar --no-same-owner -xC "${dirname}" + assert "Unpacking ${gpkg} failed" +} + # @FUNCTION: _unpacker # @USAGE: <one archive to unpack> # @INTERNAL @@ -386,32 +465,17 @@ _unpacker() { [[ $# -eq 1 ]] || die "Usage: ${FUNCNAME} <file>" local a=$1 - local m=$(echo "${a}" | tr '[:upper:]' '[:lower:]') + local m=${a,,} a=$(find_unpackable_file "${a}") # first figure out the decompression method - local comp="" - case ${m} in - *.bz2|*.tbz|*.tbz2) - local bzcmd=${PORTAGE_BZIP2_COMMAND:-$(type -P pbzip2 || type -P bzip2)} - local bzuncmd=${PORTAGE_BUNZIP2_COMMAND:-${bzcmd} -d} - : ${UNPACKER_BZ2:=${bzuncmd}} - comp="${UNPACKER_BZ2} -c" - ;; - *.z|*.gz|*.tgz) - comp="gzip -dc" ;; - *.lzma|*.xz|*.txz) - comp="xz -dc" ;; - *.lz) - : ${UNPACKER_LZIP:=$(type -P plzip || type -P pdlzip || type -P lzip)} - comp="${UNPACKER_LZIP} -dc" ;; - *.zst) - comp="zstd -dfc" ;; - esac + local comp=$(_unpacker_get_decompressor "${m}") # then figure out if there are any archiving aspects local arch="" case ${m} in + *.gpkg.tar) + arch="unpack_gpkg" ;; *.tgz|*.tbz|*.tbz2|*.txz|*.tar.*|*.tar) arch="tar --no-same-owner -xof" ;; *.cpio.*|*.cpio) @@ -437,13 +501,13 @@ _unpacker() { esac # 7z, rar and lha/lzh are handled by package manager in EAPI < 8 - if [[ ${EAPI} != [567] ]]; then + if [[ ${EAPI} != [67] ]]; then case ${m} in *.7z) arch="unpack_7z" ;; - *.rar|*.RAR) + *.rar) arch="unpack_rar" ;; - *.LHA|*.LHa|*.lha|*.lzh) + *.lha|*.lzh) arch="unpack_lha" ;; esac fi @@ -506,10 +570,11 @@ unpacker_src_uri_depends() { fi for uri in "$@" ; do - case ${uri} in + local m=${uri,,} + case ${m} in *.cpio.*|*.cpio) d="app-arch/cpio" ;; - *.rar|*.RAR) + *.rar) d="app-arch/unrar" ;; *.7z) d="app-arch/p7zip" ;; @@ -521,8 +586,12 @@ unpacker_src_uri_depends() { d="|| ( app-arch/plzip app-arch/pdlzip app-arch/lzip )" ;; *.zst) d="app-arch/zstd" ;; - *.LHA|*.LHa|*.lha|*.lzh) + *.lha|*.lzh) d="app-arch/lha" ;; + *.lz4) + d="app-arch/lz4" ;; + *.lzo) + d="app-arch/lzop" ;; esac deps+=" ${d}" done |