user.eclass: move read-only functionality to user-info.eclass

The new eclass can be used by ebuilds to look up user information
without triggering a deprecation warning from repoman and pkgcheck.

Signed-off-by: Mike Gilbert <floppym@gentoo.org>

2 files changed, 161 insertions, 146 deletions

diff --git a/eclass/user-info.eclass b/eclass/user-info.eclass
new file mode 100644
index 000000000000..ea037d54dfdd
--- /dev/null
+++ b/eclass/user-info.eclass
@@ -0,0 +1,158 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: user-info.eclass
+# @MAINTAINER:
+# base-system@gentoo.org (Linux)
+# Michał Górny <mgorny@gentoo.org> (NetBSD)
+# @BLURB: Read-only access to user and group information
+
+if [[ -z ${_USER_INFO_ECLASS} ]]; then
+_USER_INFO_ECLASS=1
+
+# @FUNCTION: egetent
+# @USAGE: <database> <key>
+# @DESCRIPTION:
+# Small wrapper for getent (Linux), nidump (< Mac OS X 10.5),
+# dscl (Mac OS X 10.5), and pw (FreeBSD) used in enewuser()/enewgroup().
+#
+# Supported databases: group passwd
+egetent() {
+	local db=$1 key=$2
+
+	[[ $# -ge 3 ]] && die "usage: egetent <database> <key>"
+
+	case ${db} in
+	passwd|group) ;;
+	*) die "sorry, database '${db}' not yet supported; file a bug" ;;
+	esac
+
+	case ${CHOST} in
+	*-freebsd*|*-dragonfly*)
+		case ${db} in
+		passwd) db="user" ;;
+		*) ;;
+		esac
+
+		# lookup by uid/gid
+		local opts
+		if [[ ${key} == [[:digit:]]* ]] ; then
+			[[ ${db} == "user" ]] && opts="-u" || opts="-g"
+		fi
+
+		pw show ${db} ${opts} "${key}" -q
+		;;
+	*-openbsd*)
+		grep "${key}:\*:" /etc/${db}
+		;;
+	*)
+		# ignore nscd output if we're not running as root
+		type -p nscd >/dev/null && nscd -i "${db}" 2>/dev/null
+		getent "${db}" "${key}"
+		;;
+	esac
+}
+
+# @FUNCTION: egetusername
+# @USAGE: <uid>
+# @DESCRIPTION:
+# Gets the username for given UID.
+egetusername() {
+	[[ $# -eq 1 ]] || die "usage: egetusername <uid>"
+
+	egetent passwd "$1" | cut -d: -f1
+}
+
+# @FUNCTION: egetgroupname
+# @USAGE: <gid>
+# @DESCRIPTION:
+# Gets the group name for given GID.
+egetgroupname() {
+	[[ $# -eq 1 ]] || die "usage: egetgroupname <gid>"
+
+	egetent group "$1" | cut -d: -f1
+}
+
+# @FUNCTION: egethome
+# @USAGE: <user>
+# @DESCRIPTION:
+# Gets the home directory for the specified user.
+egethome() {
+	local pos
+
+	[[ $# -eq 1 ]] || die "usage: egethome <user>"
+
+	case ${CHOST} in
+	*-freebsd*|*-dragonfly*)
+		pos=9
+		;;
+	*)	# Linux, NetBSD, OpenBSD, etc...
+		pos=6
+		;;
+	esac
+
+	egetent passwd "$1" | cut -d: -f${pos}
+}
+
+# @FUNCTION: egetshell
+# @USAGE: <user>
+# @DESCRIPTION:
+# Gets the shell for the specified user.
+egetshell() {
+	local pos
+
+	[[ $# -eq 1 ]] || die "usage: egetshell <user>"
+
+	case ${CHOST} in
+	*-freebsd*|*-dragonfly*)
+		pos=10
+		;;
+	*)	# Linux, NetBSD, OpenBSD, etc...
+		pos=7
+		;;
+	esac
+
+	egetent passwd "$1" | cut -d: -f${pos}
+}
+
+# @FUNCTION: egetcomment
+# @USAGE: <user>
+# @DESCRIPTION:
+# Gets the comment field for the specified user.
+egetcomment() {
+	local pos
+
+	[[ $# -eq 1 ]] || die "usage: egetshell <user>"
+
+	case ${CHOST} in
+	*-freebsd*|*-dragonfly*)
+		pos=8
+		;;
+	*)	# Linux, NetBSD, OpenBSD, etc...
+		pos=5
+		;;
+	esac
+
+	egetent passwd "$1" | cut -d: -f${pos}
+}
+
+# @FUNCTION: egetgroups
+# @USAGE: <user>
+# @DESCRIPTION:
+# Gets all the groups user belongs to.  The primary group is returned
+# first, then all supplementary groups.  Groups are ','-separated.
+egetgroups() {
+	[[ $# -eq 1 ]] || die "usage: egetgroups <user>"
+
+	local egroups_arr
+	read -r -a egroups_arr < <(id -G -n "$1")
+
+	local g groups=${egroups_arr[0]}
+	# sort supplementary groups to make comparison possible
+	while read -r g; do
+		[[ -n ${g} ]] && groups+=",${g}"
+	done < <(printf '%s\n' "${egroups_arr[@]:1}" | sort)
+	echo "${groups}"
+}
+
+fi
diff --git a/eclass/user.eclass b/eclass/user.eclass
index f433d32bf7ed..9bd0b607eab8 100644
--- a/eclass/user.eclass
+++ b/eclass/user.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: user.eclass
@@ -13,6 +13,8 @@
 if [[ -z ${_USER_ECLASS} ]]; then
 _USER_ECLASS=1
 
+inherit user-info
+
 # @FUNCTION: _assert_pkg_ebuild_phase
 # @INTERNAL
 # @USAGE: <calling func name>
@@ -27,49 +29,6 @@ _assert_pkg_ebuild_phase() {
 	esac
 }
 
-# @FUNCTION: egetent
-# @USAGE: <database> <key>
-# @DESCRIPTION:
-# Small wrapper for getent (Linux), nidump (< Mac OS X 10.5),
-# dscl (Mac OS X 10.5), and pw (FreeBSD) used in enewuser()/enewgroup().
-#
-# Supported databases: group passwd
-egetent() {
-	local db=$1 key=$2
-
-	[[ $# -ge 3 ]] && die "usage: egetent <database> <key>"
-
-	case ${db} in
-	passwd|group) ;;
-	*) die "sorry, database '${db}' not yet supported; file a bug" ;;
-	esac
-
-	case ${CHOST} in
-	*-freebsd*|*-dragonfly*)
-		case ${db} in
-		passwd) db="user" ;;
-		*) ;;
-		esac
-
-		# lookup by uid/gid
-		local opts
-		if [[ ${key} == [[:digit:]]* ]] ; then
-			[[ ${db} == "user" ]] && opts="-u" || opts="-g"
-		fi
-
-		pw show ${db} ${opts} "${key}" -q
-		;;
-	*-openbsd*)
-		grep "${key}:\*:" /etc/${db}
-		;;
-	*)
-		# ignore nscd output if we're not running as root
-		type -p nscd >/dev/null && nscd -i "${db}" 2>/dev/null
-		getent "${db}" "${key}"
-		;;
-	esac
-}
-
 # @FUNCTION: user_get_nologin
 # @INTERNAL
 # @DESCRIPTION:
@@ -351,108 +310,6 @@ enewgroup() {
 	esac
 }
 
-# @FUNCTION: egetusername
-# @USAGE: <uid>
-# @DESCRIPTION:
-# Gets the username for given UID.
-egetusername() {
-	[[ $# -eq 1 ]] || die "usage: egetusername <uid>"
-
-	egetent passwd "$1" | cut -d: -f1
-}
-
-# @FUNCTION: egetgroupname
-# @USAGE: <gid>
-# @DESCRIPTION:
-# Gets the group name for given GID.
-egetgroupname() {
-	[[ $# -eq 1 ]] || die "usage: egetgroupname <gid>"
-
-	egetent group "$1" | cut -d: -f1
-}
-
-# @FUNCTION: egethome
-# @USAGE: <user>
-# @DESCRIPTION:
-# Gets the home directory for the specified user.
-egethome() {
-	local pos
-
-	[[ $# -eq 1 ]] || die "usage: egethome <user>"
-
-	case ${CHOST} in
-	*-freebsd*|*-dragonfly*)
-		pos=9
-		;;
-	*)	# Linux, NetBSD, OpenBSD, etc...
-		pos=6
-		;;
-	esac
-
-	egetent passwd "$1" | cut -d: -f${pos}
-}
-
-# @FUNCTION: egetshell
-# @USAGE: <user>
-# @DESCRIPTION:
-# Gets the shell for the specified user.
-egetshell() {
-	local pos
-
-	[[ $# -eq 1 ]] || die "usage: egetshell <user>"
-
-	case ${CHOST} in
-	*-freebsd*|*-dragonfly*)
-		pos=10
-		;;
-	*)	# Linux, NetBSD, OpenBSD, etc...
-		pos=7
-		;;
-	esac
-
-	egetent passwd "$1" | cut -d: -f${pos}
-}
-
-# @FUNCTION: egetcomment
-# @USAGE: <user>
-# @DESCRIPTION:
-# Gets the comment field for the specified user.
-egetcomment() {
-	local pos
-
-	[[ $# -eq 1 ]] || die "usage: egetshell <user>"
-
-	case ${CHOST} in
-	*-freebsd*|*-dragonfly*)
-		pos=8
-		;;
-	*)	# Linux, NetBSD, OpenBSD, etc...
-		pos=5
-		;;
-	esac
-
-	egetent passwd "$1" | cut -d: -f${pos}
-}
-
-# @FUNCTION: egetgroups
-# @USAGE: <user>
-# @DESCRIPTION:
-# Gets all the groups user belongs to.  The primary group is returned
-# first, then all supplementary groups.  Groups are ','-separated.
-egetgroups() {
-	[[ $# -eq 1 ]] || die "usage: egetgroups <user>"
-
-	local egroups_arr
-	read -r -a egroups_arr < <(id -G -n "$1")
-
-	local g groups=${egroups_arr[0]}
-	# sort supplementary groups to make comparison possible
-	while read -r g; do
-		[[ -n ${g} ]] && groups+=",${g}"
-	done < <(printf '%s\n' "${egroups_arr[@]:1}" | sort)
-	echo "${groups}"
-}
-
 # @FUNCTION: esethome
 # @USAGE: <user> <homedir>
 # @DESCRIPTION: