[pacman-dev] [WIP 2/4] makepkg add sysusers during package()

[Andrew Gregory]

---
 scripts/Makefile.am                |  2 ++
 scripts/libmakepkg/.gitignore      |  2 ++
 scripts/libmakepkg/sysgroups.sh.in | 60 +++++++++++++++++++++++++++++++++++
 scripts/libmakepkg/sysusers.sh.in  | 65 ++++++++++++++++++++++++++++++++++++++
 scripts/makepkg.sh.in              |  4 ++-
 5 files changed, 132 insertions(+), 1 deletion(-)
 create mode 100644 scripts/libmakepkg/sysgroups.sh.in
 create mode 100644 scripts/libmakepkg/sysusers.sh.in

diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 6f9abb8..a3c1050 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -81,6 +81,8 @@ LIBMAKEPKG_IN = \
 	libmakepkg/source/hg.sh \
 	libmakepkg/source/local.sh \
 	libmakepkg/source/svn.sh \
+	libmakepkg/sysgroups.sh \
+	libmakepkg/sysusers.sh \
 	libmakepkg/tidy.sh \
 	libmakepkg/tidy/docs.sh \
 	libmakepkg/tidy/emptydirs.sh \
diff --git a/scripts/libmakepkg/.gitignore b/scripts/libmakepkg/.gitignore
index 2de91e7..7a784d0 100644
--- a/scripts/libmakepkg/.gitignore
+++ b/scripts/libmakepkg/.gitignore
@@ -4,6 +4,8 @@ lint_pkgbuild.sh
 lint_pkgbuild/*.sh
 source.sh
 source/*.sh
+sysusers.sh
+sysgroups.sh
 tidy.sh
 tidy/*.sh
 util.sh
diff --git a/scripts/libmakepkg/sysgroups.sh.in b/scripts/libmakepkg/sysgroups.sh.in
new file mode 100644
index 0000000..095d60e
--- /dev/null
+++ b/scripts/libmakepkg/sysgroups.sh.in
@@ -0,0 +1,60 @@
+#!/bin/bash
+#
+#   source.sh - functions for downloading and extracting sources
+#
+#   Copyright (c) 2016 Pacman Development Team <pacman-dev at 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 <http://www.gnu.org/licenses/>.
+#
+
+[[ -n "$LIBMAKEPKG_SOURCE_SYSGROUPS" ]] && return
+LIBMAKEPKG_SOURCE_SYSGROUPS=1
+
+# field indices
+gr_name=0
+gr_passwd=1
+gr_gid=2
+gr_users=3
+
+dynamic_gid=101
+
+gr_parse_ent() {
+	IFS=: read -a "$1"
+}
+
+add_fake_group() {
+	local -a gr fakeuser_args
+	gr_parse_ent 'gr' <<< "$1"
+
+	if [[ -n ${gr[$gr_gid]} ]]; then
+		fakeuser_args+=('-g' "${gr[$gr_gid]}")
+	else
+		fakeuser_args+=('-g' $(( dynamic_gid++ )) )
+	fi
+
+	[[ -n ${gr[$gr_name]} ]] && fakeuser_args+=('-n' "${gr[$gr_name]}")
+	[[ -n ${gr[$gr_passwd]} ]] && fakeuser_args+=('-p' "${gr[$gr_passwd]}")
+	[[ -n ${gr[$gr_gid]} ]] && fakeuser_args+=('-g' "${gr[$gr_gid]}")
+	[[ -n ${gr[$gr_users]} ]] && fakeuser_args+=('-m' "${gr[$gr_gecos]}")
+
+	fakeadd -G "${fakeuser_args[@]}"
+}
+
+add_fake_groups() {
+	for ent in "${sysgroups[@]}"; do
+		add_fake_group "$ent"
+	done
+}
+
+# vim: set noet:
diff --git a/scripts/libmakepkg/sysusers.sh.in b/scripts/libmakepkg/sysusers.sh.in
new file mode 100644
index 0000000..fbb7328
--- /dev/null
+++ b/scripts/libmakepkg/sysusers.sh.in
@@ -0,0 +1,65 @@
+#!/bin/bash
+#
+#   source.sh - functions for downloading and extracting sources
+#
+#   Copyright (c) 2016 Pacman Development Team <pacman-dev at archlinux.org>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+[[ -n "$LIBMAKEPKG_SOURCE_SYSUSERS" ]] && return
+LIBMAKEPKG_SOURCE_SYSUSERS=1
+
+# field indices
+pw_name=0
+pw_passwd=1
+pw_uid=2
+pw_gid=3
+pw_gecos=4
+pw_dir=5
+pw_shell=6
+
+dynamic_uid=101
+
+pw_parse_ent() {
+	IFS=: read -a "$1"
+}
+
+add_fake_user() {
+	local -a pw fakeuser_args
+	pw_parse_ent 'pw' <<< "$1"
+
+	if [[ -n ${pw[$pw_uid]} ]]; then
+		fakeuser_args+=('-u' "${pw[$pw_uid]}")
+	else
+		fakeuser_args+=('-u' $(( dynamic_uid++ )) )
+	fi
+
+	[[ -n ${pw[$pw_name]} ]] && fakeuser_args+=('-n' "${pw[$pw_name]}")
+	[[ -n ${pw[$pw_passwd]} ]] && fakeuser_args+=('-p' "${pw[$pw_passwd]}")
+	[[ -n ${pw[$pw_gid]} ]] && fakeuser_args+=('-g' "${pw[$pw_gid]}")
+	[[ -n ${pw[$pw_gecos]} ]] && fakeuser_args+=('-c' "${pw[$pw_gecos]}")
+	[[ -n ${pw[$pw_dir]} ]] && fakeuser_args+=('-d' "${pw[$pw_dir]}")
+	[[ -n ${pw[$pw_shell]} ]] && fakeuser_args+=('-s' "${pw[$pw_shell]}")
+
+	fakeadd -U "${fakeuser_args[@]}"
+}
+
+add_fake_users() {
+	for ent in "${sysusers[@]}"; do
+		add_fake_user "$ent"
+	done
+}
+
+# vim: set noet:
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 2efcc98..a0134f6 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -167,7 +167,7 @@ clean_up() {
 
 enter_fakeroot() {
 	msg "$(gettext "Entering %s environment...")" "fakeroot"
-	fakeroot -- $0 -F "${ARGLIST[@]}" || exit $?
+	LD_PRELOAD=/usr/lib/libfakeuser.so fakeroot -- $0 -F "${ARGLIST[@]}" || exit $?
 }
 
 # Automatically update pkgver variable if a pkgver() function is provided
@@ -2098,6 +2098,8 @@ if (( INFAKEROOT )); then
 	fi
 
 	chmod 755 "$pkgdirbase"
+	add_fake_users
+	add_fake_groups
 	if (( ! SPLITPKG )); then
 		pkgdir="$pkgdirbase/$pkgname"
 		mkdir "$pkgdir"
-- 
2.7.2