Xorg: print Debian packages used by Xorg process
Posted by Anonymous on Mon 2nd May 2022 17:39
raw | new post
modification of post by Anonymous (view diff)

#!/usr/bin/ksh93

#
# xorg_proc_package_list.ksh - get list of packages used by Xorg process
#
#
#

set -o xtrace
set -o errexit
set -o nounset

#
# builtins&vars
#
builtin cat
typeset s1
typeset s2
typeset -a a1

compound c=(
        integer xorg_pid
        typeset -a mapped_files_ar
        typeset -A package_list
)

c.xorg_pid="$(pgrep Xorg)"

c.mapped_files_ar=(
        $(
                cat "/proc/${c.xorg_pid}/maps" | \
                sed -r 's/[[:xdigit:]]+?-[[:xdigit:]]+? [rwxp-]+ [[:xdigit:]]+? .+? (\/.+?$)/\1/' | \
                egrep '^/' |
                sort -u
        )
)

for s1 in "${c.mapped_files_ar[@]}" ; do
        s1="$(apt-file search "$s1" 2>'/dev/null' || true)"
        [[ $s1 != '' ]] || continue

        # apt-file can return multiple results, one per line
        # we stuff them into the array a1 here and then
        # process them one-by-one
        IFS=$'\n'
        a1=( $s1 )
        IFS=$' \t\n' # restore
        printf $"# apt-file %d results\n" "${#a1[@]}"

        for s2 in "${a1[@]}" ; do
                # extract package name
                s2="${s2/~(El)(.+?):.+/\1}"

                # add result, use package name as index to eliminate duplicates
                c.package_list["$s2"]="$s2"
        done
done

#
# debug data
#
print -v c

#
# print results
#
printf "# Package list:\n"
printf "%s\n" "${c.package_list[@]}"

# EOF.