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https://github.com/moparisthebest/pacman
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makepkg: rework libdepends
Rewrite the handling of libdepends. The primary advantage are: - Moves functionality from write_pkginfo() to find_libdepends(). - The order of the depends array in the PKGBUILD is kept in the package. - An unneeded libdepends is only a warning and not an error. This allows putting a libdepend on a library that is dlopened. - It is now modular so can be extended to library types other than ELF *.so. - Finding the list of libraries a package depends only occurs when a libdepend is specified in the depends array. Signed-off-by: Allan McRae <allan@archlinux.org>
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@ -1131,12 +1131,29 @@ tidy_install() {
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}
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find_libdepends() {
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local libdepends
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find "$pkgdir" -type f -perm -u+x | while read filename
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do
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local d sodepends;
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sodepends=0;
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for d in "${depends[@]}"; do
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if [[ $d = *.so ]]; then
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sodepends=1;
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break;
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fi
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done
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if (( sodepends == 0 )); then
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printf '%s\n' "${depends[@]}"
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return;
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fi
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local libdeps filename soarch sofile soname soversion;
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declare -A libdeps;
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while read filename; do
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# get architecture of the file; if soarch is empty it's not an ELF binary
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soarch=$(LC_ALL=C readelf -h "$filename" 2>/dev/null | sed -n 's/.*Class.*ELF\(32\|64\)/\1/p')
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[ -n "$soarch" ] || continue
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[[ -n "$soarch" ]] || continue
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# process all libraries needed by the binary
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for sofile in $(LC_ALL=C readelf -d "$filename" 2>/dev/null | sed -nr 's/.*Shared library: \[(.*)\].*/\1/p')
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do
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@ -1144,19 +1161,42 @@ find_libdepends() {
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soname="${sofile%.so?(+(.+([0-9])))}".so
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# extract the major version: 1
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soversion="${sofile##*\.so\.}"
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if in_array "${soname}" ${depends[@]}; then
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if ! in_array "${soname}=${soversion}-${soarch}" ${libdepends[@]}; then
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# libfoo.so=1-64
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printf "%s" "${soname}=${soversion}-${soarch}"
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libdepends+=("${soname}=${soversion}-${soarch}")
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if [[ ${libdeps[$soname]} ]]; then
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if [[ ${libdeps[$soname]} != *${soversion}-${soarch}* ]]; then
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libdeps[$soname]+=" ${soversion}-${soarch}"
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fi
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else
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libdeps[$soname]="${soversion}-${soarch}"
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fi
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done
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done < <(find "$pkgdir" -type f -perm -u+x)
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local libdepends v
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for d in "${depends[@]}"; do
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case "$d" in
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*.so)
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if [[ ${libdeps[$d]} ]]; then
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for v in ${libdeps[$d]}; do
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libdepends+=("$d=$v")
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done
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else
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warning "$(gettext "Library listed in %s is not required by any files: %s")" "'depends'" "$d"
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libdepends+=("$d")
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fi
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;;
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*)
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libdepends+=("$d")
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;;
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esac
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done
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printf '%s\n' "${libdepends[@]}"
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}
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find_libprovides() {
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local libprovides missing
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local p libprovides missing
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for p in "${provides[@]}"; do
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missing=0
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case "$p" in
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@ -1246,38 +1286,20 @@ write_pkginfo() {
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printf "size = %s\n" "$size"
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printf "arch = %s\n" "$pkgarch"
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[[ $license ]] && printf "license = %s\n" "${license[@]}"
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[[ $replaces ]] && printf "replaces = %s\n" "${replaces[@]}"
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[[ $groups ]] && printf "group = %s\n" "${groups[@]}"
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[[ $optdepends ]] && printf "optdepend = %s\n" "${optdepends[@]//+([[:space:]])/ }"
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[[ $conflicts ]] && printf "conflict = %s\n" "${conflicts[@]}"
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mapfile -t provides < <(find_libprovides)
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[[ $provides ]] && printf "provides = %s\n" "${provides[@]}"
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[[ $backup ]] && printf "backup = %s\n" "${backup[@]}"
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mapfile -t depends < <(find_libdepends)
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[[ $license ]] && printf "license = %s\n" "${license[@]}"
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[[ $replaces ]] && printf "replaces = %s\n" "${replaces[@]}"
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[[ $groups ]] && printf "group = %s\n" "${groups[@]}"
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[[ $conflicts ]] && printf "conflict = %s\n" "${conflicts[@]}"
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[[ $provides ]] && printf "provides = %s\n" "${provides[@]}"
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[[ $backup ]] && printf "backup = %s\n" "${backup[@]}"
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[[ $depends ]] && printf "depend = %s\n" "${depends[@]}"
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[[ $optdepends ]] && printf "optdepend = %s\n" "${optdepends[@]//+([[:space:]])/ }"
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[[ $makedepends ]] && printf "makedepend = %s\n" "${makedepends[@]}"
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local it
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mapfile -t libdepends < <(find_libdepends)
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depends+=("${libdepends[@]}")
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for it in "${depends[@]}"; do
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if [[ $it = *.so ]]; then
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# check if the entry has been found by find_libdepends
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# if not, it's unneeded; tell the user so he can remove it
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printf -v re '(^|\s)%s=.*' "$it"
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if [[ ! $libdepends =~ $re ]]; then
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error "$(gettext "Cannot find library listed in %s: %s")" "'depends'" "$it"
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return 1
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fi
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else
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printf "depend = %s\n" "$it"
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fi
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done
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[[ $makedepends ]] && printf "makedepend = %s\n" "${makedepends[@]}"
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for it in "${packaging_options[@]}"; do
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check_option "$it" "y"
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case $? in
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