Add the sysusers compat parts

macros.sysusers

@@ -0,0 +1,10 @@
+# RPM macros for packages creating system accounts
+#
+# Turn a sysusers.d file into macros specified by
+# https://docs.fedoraproject.org/en-US/packaging-guidelines/UsersAndGroups/#_dynamic_allocation
+
+%sysusers_requires_compat Requires(pre): shadow-utils
+
+%sysusers_create_compat() \
+%(%{_rpmconfigdir}/sysusers.generate-pre.sh %{?*}) \
+%{nil}

split-files.py

@@ -48,7 +48,7 @@ for file in files(buildroot):
         continue
     if '/security/pam_' in n:
         o = o_pam
-    elif 'rpm/macros' in n:
+    elif '/rpm/' in n:
         o = o_rpm_macros
     elif re.search(r'/lib.*\.pc|/man3/|/usr/include|(?<!/libsystemd-shared-...).so$', n):
         o = o_devel

systemd.spec

@@ -54,6 +54,11 @@ Source12:       systemd-user
 # https://src.fedoraproject.org/rpms/fedora-release/pull-request/80 is merged.
 Source13:       99-default-disable-fallback.preset
 
+Source21:       macros.sysusers
+Source22:       sysusers.attr
+Source23:       sysusers.prov
+Source24:       sysusers.generate-pre.sh
+
 %if 0
 GIT_DIR=../../src/systemd/.git git format-patch-ab --no-signature -M -N v235..v235-stable
 i=1; for j in 00*patch; do printf "Patch%04d:      %s\n" $i $j; i=$((i+1));done|xclip
@@ -461,6 +466,11 @@ sed -i 's|#!/usr/bin/env python3|#!%{__python3}|' %{buildroot}/usr/lib/systemd/t
 
 install -D -t %{buildroot}/usr/lib/systemd/user-preset/ %{SOURCE13}
 
+install -m 0644 -D -t %{buildroot}%{_rpmconfigdir}/macros.d/ %{SOURCE21}
+install -m 0644 -D -t %{buildroot}%{_rpmconfigdir}/fileattrs/ %{SOURCE22}
+install -m 0755 -D -t %{buildroot}%{_rpmconfigdir}/ %{SOURCE23}
+install -m 0755 -D -t %{buildroot}%{_rpmconfigdir}/ %{SOURCE24}
+
 %find_lang %{name}
 
 # Split files in build root into rpms. See split-files.py for the
@@ -728,8 +738,11 @@ fi
 
 %changelog
 * Fri Feb  7 2020 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 245~rc1-2
-- Add default 'disable *' preset for user units
-  (see https://fedoraproject.org/wiki/Changes/Systemd_presets_for_user_units).
+- Add default 'disable *' preset for user units (#1792474),
+  see https://fedoraproject.org/wiki/Changes/Systemd_presets_for_user_units.
+- Add macro to generate "compat" scriptlets based off sysusers.d format
+  and autogenerate user() and group() virtual provides (#1792462),
+  see https://fedoraproject.org/wiki/Changes/Adopting_sysusers.d_format.
 
 * Wed Feb  5 2020 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 245~rc1-1
 - New upstream release, see

sysusers.attr

@@ -0,0 +1,2 @@
+%__sysusers_provides	%{_rpmconfigdir}/sysusers.prov
+%__sysusers_path	^%{_sysusersdir}/.*\\.conf$

sysusers.generate-pre.sh

@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# This script turns sysuser.d files into scriptlets mandated by Fedora
+# packaging guidelines. The general idea is to define users using the
+# declarative syntax but to turn this into traditional scriptlets.
+
+user() {
+    user="$1"
+    uid="$2"
+    desc="$3"
+    group="$4"
+    home="$5"
+    shell="$6"
+
+[ "$desc" = '-' ] && desc=
+[ "$home" = '-' -o "$home" = '' ] && home=/
+[ "$shell" = '-' -o "$shell" = '' ] && shell=/sbin/nologin
+
+if [ "$uid" = '-' -o "$uid" = '' ]; then
+    cat <<EOF
+getent passwd '$user' >/dev/null || \\
+    useradd -r -g '$group' -d '$home' -s '$shell' -c '$desc' '$user'
+EOF
+else
+    cat <<EOF
+if ! getent passwd '$user' >/dev/null ; then
+    if ! getent passwd '$uid' >/dev/null ; then
+        useradd -r -u '$uid' -g '$group' -d '$home' -s /sbin/nologin -c '$desc' '$user'
+    else
+        useradd -r -g '$group' -d '$home' -s /sbin/nologin -c '$desc' '$user'
+    fi
+fi
+
+EOF
+fi
+}
+
+group() {
+    group="$1"
+    gid="$2"
+if [ "$gid" = '-' ]; then
+    cat <<EOF
+getent group '$group' >/dev/null || groupadd -r '$group'
+EOF
+else
+    cat <<EOF
+getent group '$group' >/dev/null || groupadd -f -g '$gid' -r '$group'
+EOF
+fi
+}
+
+parse() {
+    while read line; do
+        [ "${line:0:1}" = '#' -o "${line:0:1}" = ';' ] && continue
+        line="${line## *}"
+        [ -z "$line" ] && continue
+        eval arr=( $line )
+        case "${arr[0]}" in
+            ('u')
+                group "${arr[1]}" "${arr[2]}"
+                user "${arr[1]}" "${arr[2]}" "${arr[3]}" "${arr[1]}" "${arr[4]}" "${arr[5]}"
+                # TODO: user:group support
+                ;;
+            ('g')
+                group "${arr[1]}" "${arr[2]}"
+                ;;
+            ('m')
+                group "${arr[2]}" "-"
+                user "${arr[1]}" "-" "" "${arr[2]}"
+                ;;
+        esac
+    done
+}
+
+for fn in "$@"; do
+    [ -e "$fn" ] || continue
+    echo "# generated from $(basename $fn)"
+    parse < "$fn"
+done

sysusers.prov

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+parse() {
+    while read line; do
+        [ "${line:0:1}" = '#' -o "${line:0:1}" = ';' ] && continue
+        line="${line## *}"
+        [ -z "$line" ] && continue
+        set -- $line
+        case "$1" in
+            ('u')
+                echo "user($2)"
+                echo "group($2)"
+                # TODO: user:group support
+                ;;
+            ('g')
+                echo "group($2)"
+                ;;
+            ('m')
+                echo "user($2)"
+                echo "group($3)"
+                ;;
+        esac
+    done
+}
+
+while read fn; do
+    parse < "$fn"
+done