7e62bd0762
... (rhbz#2104141)
In the first version, I wanted to use POSIX quotes with $''. But that required
'printf %q', which brings in a dependency on coreutils.
Following mcr0mmand's suggestion, ${foo@Q} is used instead, which should work
equivalently, and does not require anything new.
Tested with 'sysusers.generate-pre.sh /usr/lib/sysusers.d/*conf'. The output is
the same before and after, apart from the dovecot user with a quote.
97 lines
2.2 KiB
Bash
Executable File
97 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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# -*- mode: shell-script; indent-tabs-mode: true; tab-width: 4; -*-
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# This script turns sysuser.d files into scriptlets mandated by Fedora
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# packaging guidelines. The general idea is to define users using the
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# declarative syntax but to turn this into traditional scriptlets.
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user() {
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user="$1"
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uid="$2"
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desc="$3"
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group="$4"
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home="$5"
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shell="$6"
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[ "$desc" = '-' ] && desc=
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{ [ "$home" = '-' ] || [ "$home" = '' ]; } && home=/
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{ [ "$shell" = '-' ] || [ "$shell" = '' ]; } && shell=/usr/sbin/nologin
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if [ "$uid" = '-' ] || [ "$uid" = '' ]; then
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cat <<-EOF
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getent passwd '$user' >/dev/null || \\
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useradd -r -g ${group@Q} -d ${home@Q} -s ${shell@Q} -c ${desc@Q} ${user@Q} || :
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EOF
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else
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cat <<-EOF
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if ! getent passwd ${user@Q} >/dev/null; then
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if ! getent passwd ${uid@Q} >/dev/null; then
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useradd -r -u ${uid@Q} -g ${group@Q} -d ${home@Q} -s ${shell@Q} -c ${desc@Q} ${user@Q} || :
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else
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useradd -r -g ${group@Q} -d ${home@Q} -s ${shell@Q} -c ${desc@Q} ${user@Q} || :
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fi
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fi
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EOF
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fi
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}
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group() {
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group="$1"
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gid="$2"
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if [ "$gid" = '-' ]; then
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cat <<-EOF
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getent group ${group@Q} >/dev/null || groupadd -r ${group@Q} || :
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EOF
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else
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cat <<-EOF
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getent group ${group@Q} >/dev/null || groupadd -f -g ${gid@Q} -r ${group@Q} || :
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EOF
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fi
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}
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usermod() {
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user="$1"
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group="$2"
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cat <<-EOF
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if getent group ${group@Q} >/dev/null; then
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usermod -a -G ${group@Q} '$user' || :
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fi
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EOF
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}
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parse() {
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while read -r line || [ -n "$line" ] ; do
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{ [ "${line:0:1}" = '#' ] || [ "${line:0:1}" = ';' ]; } && continue
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line="${line## *}"
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[ -z "$line" ] && continue
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eval "arr=( $line )"
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case "${arr[0]}" in
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('u')
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if [[ "${arr[2]}" == *":"* ]]; then
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user "${arr[1]}" "${arr[2]%:*}" "${arr[3]}" "${arr[2]#*:}" "${arr[4]}" "${arr[5]}"
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else
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group "${arr[1]}" "${arr[2]}"
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user "${arr[1]}" "${arr[2]}" "${arr[3]}" "${arr[1]}" "${arr[4]}" "${arr[5]}"
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fi
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;;
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('g')
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group "${arr[1]}" "${arr[2]}"
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;;
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('m')
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group "${arr[2]}" "-"
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user "${arr[1]}" "-" "" "${arr[1]}" "" ""
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usermod "${arr[1]}" "${arr[2]}"
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;;
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esac
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done
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}
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for fn in "$@"; do
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[ -e "$fn" ] || continue
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echo "# generated from $(basename "$fn")"
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parse <"$fn"
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done
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