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Code Issues Releases Wiki Activity

makepkg: rework libprovides

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This reworks the implmentation of libprovides for the following
benefits:
 - Moves functionality from write_pkginfo() to find_libprovides()
 - Only calculates the version for libraries specifically requested
   and not all libraries. This has the disadvantage of running find
   over the $pkgdir for as many libraries as needed, but is unlikely
   to be an issue due to caching.
 - The order of the provides array in the PKGBUILD is kept in the
   package
 - There are more warning messages when things fail and those that
   were there are no longer errors (as I do not think failure of
   libprovides should result in complete packaging failure)
 - It is now modular so can be easy extended to other library types
   other than ELF *.so.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Allan McRae 2011-07-09 21:52:01 +10:00 committed by Dan McGee
parent f8892b9d08
commit 5bbe342932
1 changed files with 49 additions and 38 deletions
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87
scripts/makepkg.sh.in
View File

@ -1084,30 +1084,53 @@ find_libdepends() {
}
find_libprovides() {
local libprovides
find "$pkgdir" -type f -name \*.so\* | while read filename
do
# check if we really have a shared object
if LC_ALL=C readelf -h "$filename" 2>/dev/null | grep -q '.*Type:.*DYN (Shared object file).*'; then
# 64
soarch=$(LC_ALL=C readelf -h "$filename" | sed -n 's/.*Class.*ELF\(32\|64\)/\1/p')
# get the string binaries link to: libfoo.so.1.2 -> libfoo.so.1
sofile=$(LC_ALL=C readelf -d "$filename" 2>/dev/null | sed -n 's/.*Library soname: \[\(.*\)\].*/\1/p')
[ -z "$sofile" ] && sofile="${filename##*/}"
local libprovides missing
for p in ${provides[@]}; do
missing=0
case "$p" in
*.so)
local filename=$(find "$pkgdir" -type f -name $p\*)
if [[ $filename ]]; then
# packages may provide multiple versions of the same library
for fn in ${filename[@]}; do
# check if we really have a shared object
if LC_ALL=C readelf -h "$fn" 2>/dev/null | grep -q '.*Type:.*DYN (Shared object file).*'; then
# get the string binaries link to (e.g. libfoo.so.1.2 -> libfoo.so.1)
local sofile=$(LC_ALL=C readelf -d "$fn" 2>/dev/null | sed -n 's/.*Library soname: \[\(.*\)\].*/\1/p')
if [[ -z "$sofile" ]]; then
warning "$(gettext "Library listed in %s is not versioned: %s")" "'provides'" "$p"
libprovides=(${libprovides[@]} "$p")
continue
fi
# extract the library name: libfoo.so
soname="${sofile%%\.so\.*}.so"
# extract the major version: 1
soversion="${sofile##*\.so\.}"
if in_array "${soname}" ${provides[@]}; then
if ! in_array "${soname}=${soversion}-${soarch}" ${libprovides[@]}; then
# libfoo.so=1-64
echo "${soname}=${soversion}-${soarch}"
libprovides=(${libprovides[@]} "${soname}=${soversion}-${soarch}")
# get the library architecture (32 or 64 bit)
local soarch=$(LC_ALL=C readelf -h "$fn" | sed -n 's/.*Class.*ELF\(32\|64\)/\1/p')
# extract the library major version
local soversion="${sofile##*\.so\.}"
libprovides=(${libprovides[@]} "${p}=${soversion}-${soarch}")
else
warning "$(gettext "Library listed in %s is not a shared object: %s")" "'provides'" "$p"
libprovides=(${libprovides[@]} "$p")
fi
done
else
libprovides=(${libprovides[@]} "$p")
missing=1
fi
fi
fi
;;
*)
libprovides=(${libprovides[@]} "$p")
;;
esac
if (( missing )); then
warning "$(gettext "Can not find library listed in %s: %s")" "'provides'" "$p"
fi
done
echo ${libprovides[@]}
}
check_license() {
@ -1149,13 +1172,15 @@ write_pkginfo() {
[[ $groups ]] && printf "group = %s\n" "${groups[@]}"
[[ $optdepends ]] && printf "optdepend = %s\n" "${optdepends[@]//+([[:space:]])/ }"
[[ $conflicts ]] && printf "conflict = %s\n" "${conflicts[@]}"
provides=($(find_libprovides))
[[ $provides ]] && printf "provides = %s\n" "${provides[@]}"
[[ $backup ]] && printf "backup = %s\n" "${backup[@]}"
local it
libprovides=$(find_libprovides)
local it
libdepends=$(find_libdepends)
provides=("${provides[@]}" ${libprovides})
depends=("${depends[@]}" ${libdepends})
for it in "${depends[@]}"; do
@ -1171,20 +1196,6 @@ write_pkginfo() {
fi
done
for it in "${provides[@]}"; do
# ignore versionless entires (those come from the PKGBUILD)
if [[ $it = *.so ]]; then
# check if the entry has been found by find_libprovides
# if not, it's unneeded; tell the user so he can remove it
if [[ ! $libprovides =~ (^|\s)${it}=.* ]]; then
error "$(gettext "Cannot find library listed in %s: %s")" "'provides'" "$it"
return 1
fi
else
echo "provides = $it"
fi
done
for it in "${packaging_options[@]}"; do
local ret="$(check_option $it)"
if [[ $ret != "?" ]]; then