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-rw-r--r--find-libdeps.in100
1 files changed, 100 insertions, 0 deletions
diff --git a/find-libdeps.in b/find-libdeps.in
new file mode 100644
index 0000000..8fff939
--- /dev/null
+++ b/find-libdeps.in
@@ -0,0 +1,100 @@
+#!/bin/bash
+
+set -e
+
+IGNORE_INTERNAL=0
+
+if [[ $1 = "--ignore-internal" ]]; then
+ IGNORE_INTERNAL=1
+ shift
+fi
+
+script_mode=${0##*/find-lib}
+
+case $script_mode in
+ deps|provides) true;;
+ *) echo "error: unknown mode $script_mode"; exit 1;;
+esac
+
+if [[ -z $1 ]]; then
+ echo "${0##*/} [options] <package file|extracted package dir>"
+ echo "Options:"
+ echo " --ignore-internal ignore internal libraries"
+ exit 1
+fi
+
+cleanup() {
+ if [[ $tmpdir ]]; then
+ rm -rf $tmpdir;
+ fi
+}
+
+if [[ -d $1 ]]; then
+ cd $1
+else
+ tmpdir=$(mktemp -d /tmp/find-sodeps.XXXXXXX)
+ trap "cleanup" EXIT INT TERM
+
+ case ${script_mode} in
+ deps) bsdtar -C $tmpdir -xf "$1";;
+ provides)bsdtar -C $tmpdir -xf "$1" --include="*.so*";;
+ esac
+
+ cd $tmpdir
+fi
+
+in_array() {
+ local needle=$1; shift
+ [[ -z $1 ]] && return 1 # Not Found
+ local item
+ for item in "$@"; do
+ [[ $item = $needle ]] && return 0 # Found
+ done
+ return 1 # Not Found
+}
+
+process_sofile() {
+ # extract the library name: libfoo.so
+ soname="${sofile%%\.so\.*}.so"
+ # extract the major version: 1
+ soversion="${sofile##*\.so\.}"
+ if [[ "$soversion" = "$sofile" ]] && (($IGNORE_INTERNAL)); then
+ continue
+ fi
+ if ! in_array "${soname}=${soversion}-${soarch}" ${soobjects[@]}; then
+ # libfoo.so=1-64
+ echo "${soname}=${soversion}-${soarch}"
+ soobjects=(${soobjects[@]} "${soname}=${soversion}-${soarch}")
+ fi
+}
+
+case $script_mode in
+ deps) find_args="-perm -u+x";;
+ provides) find_args="-name *.so*";;
+esac
+
+find . -type f $find_args | while read filename; do
+ if [[ $script_mode = "provides" ]]; then
+ # ignore if we don't have a shared object
+ if ! LC_ALL=C readelf -h "$filename" 2>/dev/null | grep -q '.*Type:.*DYN (Shared object file).*'; then
+ continue
+ fi
+ fi
+
+ # get architecture of the file; if soarch is empty it's not an ELF binary
+ soarch=$(LC_ALL=C readelf -h "$filename" 2>/dev/null | sed -n 's/.*Class.*ELF\(32\|64\)/\1/p')
+ [ -n "$soarch" ] || continue
+
+ if [[ $script_mode = "provides" ]]; then
+ # get the string binaries link to: libfoo.so.1.2 -> libfoo.so.1
+ sofile=$(LC_ALL=C readelf -d "$filename" 2>/dev/null | sed -n 's/.*Library soname: \[\(.*\)\].*/\1/p')
+ [ -z "$sofile" ] && sofile="${filename##*/}"
+ process_sofile
+ elif [[ $script_mode = "deps" ]]; then
+ # process all libraries needed by the binary
+ for sofile in $(LC_ALL=C readelf -d "$filename" 2>/dev/null | sed -nr 's/.*Shared library: \[(.*)\].*/\1/p'); do
+ process_sofile
+ done
+ fi
+done
+