1 files changed, 147 insertions, 0 deletions
diff --git a/sogrep.in b/sogrep.in
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index 0000000..055c61f
--- /dev/null
+++ b/sogrep.in
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+#!/bin/bash
+#
+#   sogrep - find shared library links in an Arch Linux repository.
+#
+#   Copyright (c) 2019 by Eli Schwartz <eschwartz@archlinux.org>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+
+# globals
+: ${SOLINKS_MIRROR:="https://mirror.pkgbuild.com"}
+: ${SOCACHE_DIR:="${XDG_CACHE_HOME:-${HOME}/.cache}/sogrep"}
+
+m4_include(lib/valid-repos.sh)
+arches=('x86_64')
+
+# options
+REFRESH=0
+VERBOSE=0
+
+source /usr/share/makepkg/util/parseopts.sh
+source /usr/share/makepkg/util/util.sh
+
+recache() {
+    local repo arch verbosity=-s
+
+    (( VERBOSE )) && verbosity=--progress-bar
+
+    for repo in "${_repos[@]}"; do
+        for arch in "${arches[@]}"; do
+            rm -rf "${SOCACHE_DIR}/${arch}/${repo}"
+            mkdir -p "${SOCACHE_DIR}/${arch}/${repo}"
+            curl "$verbosity" "${SOLINKS_MIRROR}/${repo}/os/${arch}/${repo}.links.tar.gz" | bsdtar -xf - -C "${SOCACHE_DIR}/${arch}/${repo}"
+        done
+    done
+}
+
+search() {
+    local repo=$1 arch lib=$2 srepos=("${_repos[@]}")
+
+    if [[ $repo != all ]]; then
+        if ! in_array "${repo}" "${_repos[@]}"; then
+            echo "${BASH_SOURCE[0]##*/}: unrecognized repo '$repo'"
+            echo "Try '${BASH_SOURCE[0]##*/} --help' for more information."
+            exit 1
+        fi
+        srepos=("${repo}")
+    fi
+
+    for arch in "${arches[@]}"; do
+        for repo in "${srepos[@]}"; do
+            local prefix=
+            (( VERBOSE && ${#srepos[@]} > 1 )) && prefix=${repo}/
+            db=${SOCACHE_DIR}/${arch}/${repo}/
+            if [[ -d ${db} ]]; then
+                while read -rd '' pkg; do
+                    read -r match
+                    pkg=${pkg#${db}}
+                    pkg="${prefix}${pkg%-*-*/links}"
+
+                    if (( VERBOSE )); then
+                        printf '%-35s %s\n' "${pkg}" "${match}"
+                    else
+                        printf '%s\n' "${pkg}"
+                    fi
+                done < <(grep -rZ "${lib}" "${db}") | sort -u
+            fi
+        done
+    done | resort
+}
+
+usage() {
+    cat <<- _EOF_
+		Usage: ${BASH_SOURCE[0]##*/} [OPTIONS] REPO LIBNAME
+
+		Check the soname links database for Arch Linux repositories containing
+		packages linked to a given shared library. If the repository specified
+		is "all", then all repositories will be searched, otherwise only the
+		named repository will be searched.
+
+		If the links database does not exist, it will be downloaded first.
+
+		OPTIONS
+		    -v, --verbose   Show matched links in addition to pkgname
+		    -r, --refresh   Refresh the links databases
+		    -h, --help      Show this help text
+_EOF_
+}
+
+# utility function to resort with multiple repos + no-verbose
+resort() { sort -u; }
+
+if (( $# == 0 )); then
+    echo "error: No arguments passed."
+    echo "Try '${BASH_SOURCE[0]##*/} --help' for more information."
+    exit 1
+fi
+OPT_SHORT='vrh'
+OPT_LONG=('verbose' 'refresh' 'help')
+if ! parseopts "$OPT_SHORT" "${OPT_LONG[@]}" -- "$@"; then
+    exit 1
+fi
+set  -- "${OPTRET[@]}"
+
+while :; do
+    case $1 in
+        -v|--verbose)
+            resort() { cat; }
+            VERBOSE=1
+            ;;
+        -r|--refresh)
+            REFRESH=1
+            ;;
+        -h|--help)
+            usage
+            exit 0
+            ;;
+        --)
+            shift; break
+            ;;
+    esac
+    shift
+done
+
+if ! (( ( REFRESH && $# == 0 ) || $# == 2 )); then
+    echo "error: Incorrect number of arguments passed."
+    echo "Try '${BASH_SOURCE[0]##*/} --help' for more information."
+    exit 1
+fi
+
+if (( REFRESH )) || [[ ! -d ${SOCACHE_DIR} ]]; then
+    recache
+    (( $# == 2 )) || exit 0
+fi
+
+search "$@"