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makepkg: add libprovides support

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The user adds libaries to the provides array without a version. These
must end with .so.
Example: provides=(readline libreadline.so)

find_libprovides() looks for .so files (not symlinks because these could
point outside of pkgdir) in $pkgdir, extracts the library soname (ld
links the binary to this name) and outputs provides seperated by spaces.
This list contains all libraries provided by the package.
Example: libfoo.so=3-64

write_pkginfo() only keeps .so provides with version information and warns
the user about unneded ones.

Support-by: Thomas Bächler <thomas@archlinux.org>
Support-by: Christoph Schied <Christoph.Schied@uni-ulm.de>
Signed-off-by: Florian Pritz <bluewind@server-speed.net>
This commit is contained in:
Florian Pritz 2010-02-10 17:07:30 +01:00 committed by Florian Pritz
parent 70cf4546d6
commit 79f1a3c4a1
1 changed files with 45 additions and 1 deletions
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46
scripts/makepkg.sh.in
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@ -932,6 +932,33 @@ tidy_install() {
fi fi
} }
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 "$sofile" ] && sofile="${$filename##*/}"
# extract the library name: libfoo.so
soname="${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}")
fi
fi
fi
done
}
write_pkginfo() { write_pkginfo() {
local builddate=$(date -u "+%s") local builddate=$(date -u "+%s")
if [[ -n $PACKAGER ]]; then if [[ -n $PACKAGER ]]; then
@ -964,10 +991,27 @@ write_pkginfo() {
[[ $depends ]] && printf "depend = %s\n" "${depends[@]}" [[ $depends ]] && printf "depend = %s\n" "${depends[@]}"
[[ $optdepends ]] && printf "optdepend = %s\n" "${optdepends[@]}" [[ $optdepends ]] && printf "optdepend = %s\n" "${optdepends[@]}"
[[ $conflicts ]] && printf "conflict = %s\n" "${conflicts[@]}" [[ $conflicts ]] && printf "conflict = %s\n" "${conflicts[@]}"
[[ $provides ]] && printf "provides = %s\n" "${provides[@]}"
[[ $backup ]] && printf "backup = %s\n" "${backup[@]}" [[ $backup ]] && printf "backup = %s\n" "${backup[@]}"
local it local it
libprovides=$(find_libprovides)
provides=("${provides[@]}" ${libprovides})
for it in "${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 "$(gettext "Can't find library listed in \$provides: %s")" "$it"
return 1
fi
else
echo "provides = $it"
fi
done
for it in "${packaging_options[@]}"; do for it in "${packaging_options[@]}"; do
local ret="$(check_option $it)" local ret="$(check_option $it)"
if [[ $ret != "?" ]]; then if [[ $ret != "?" ]]; then