awk, timezone: added

4 files changed, 300 insertions, 0 deletions

diff --git a/AUTHORS b/AUTHORS
index a54f624..fb58161 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -27,3 +27,6 @@ Ryan Hill <dirtyepic@gentoo.org>
 
 Chí-Thanh Christopher Nguyễn <chithanh@gentoo.org>
     Modules:    mesa
+
+Christoph Junghans <ottxor@gentoo.org>
+    Modules:    awk, timezone
diff --git a/ChangeLog b/ChangeLog
index d4c3a67..9499f4e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-01-06 Christoph Junghans <ottxor@gentoo.org>
+
+	* modules/awk.eselect: Add awk selection module
+	* modules/timezoe.eselect: Add timezone setting module
+	* AUTHOR: Add myself
+
 2013-01-01 Matt Turner <mattst88@gentoo.org>
 
 	* modules/opengl.eselect: switch GLES3, bug #444114.
diff --git a/modules/awk.eselect b/modules/awk.eselect
new file mode 100644
index 0000000..61650c4
--- /dev/null
+++ b/modules/awk.eselect
@@ -0,0 +1,159 @@
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id: $
+
+DESCRIPTION="Manage {,/usr}/bin/awk implementations"
+MAINTAINER="ottxor@gentoo.org"
+VERSION="0.2"
+
+## Functions ##
+
+# find a list of awk symlink targets, best first
+find_targets() {
+	local t
+	for t in \
+			"${EROOT}/usr/bin/gawk" \
+			"${EROOT}/usr/bin/mawk" \
+			"${EROOT}/usr/bin/nawk" \
+			"${EROOT}/bin/busybox" \
+		; do
+		if [[ -x ${t} ]]; then
+			echo ${t##*/}
+		fi
+	done
+}
+
+# set the awk symlink
+set_symlinks() {
+	local target=${1} targets extension dir i rel_target
+
+	[[ ! -L ${EROOT}/bin/awk && -e ${EROOT}/bin/awk ]] && \
+		die -q "/bin/awk is not a symlink!"
+
+	[[ ! -L ${EROOT}/usr/bin/awk && -e ${EROOT}/usr/bin/awk ]] && \
+		die -q "/usr/bin/awk is not a symlink!"
+
+	if is_number "${target}" && [[ ${target} -ge 1 ]]; then
+		targets=( $(find_targets) )
+		target=${targets[target-1]}
+	fi
+	
+	if [[ ${target} == "busybox" ]]; then
+		dir="${EROOT}/bin"
+	else
+		dir="${EROOT}/usr/bin"
+	fi
+
+	[[ -x ${dir}/${target} ]] || die -q "Target '${target}' doesn't appear to be valid!"
+	
+	for i in /bin /usr/bin; do
+		rel_target=$(relative_name "${dir}/${target}" "${EROOT}${i}")
+		ln -sf "${rel_target}" "${EROOT}${i}/awk" || \
+			die -q "Couldn't set ${target} ${i}/awk symlink"
+	done
+
+	rm -f "${EROOT}"/usr/share/man/man1/awk.1{,.bz2,.gz,lzma}
+	for x in ".1" ".1.bz2" ".1.gz" ".1.lzma" ; do
+		if [[ -e ${EROOT}/usr/share/man/man1/${target}${x} ]] ; then
+			extension="${x}"
+			break
+		fi
+	done
+
+	#busybox has no man page
+	if [[ -z "${extension}" ]] ; then
+		echo "Couldn't find a man page for ${target}; skipping." 1>&2
+		return 1
+	fi
+
+	if ! ln -s "${target}${extension}" "${EROOT}/usr/share/man/man1/awk${extension}"; then
+		echo "Couldn't create man page symlink for ${target}; skipping." 1>&2
+                return 1
+        fi
+}
+
+### show action ###
+
+describe_show() {
+	echo "Show the current awk implementation"
+}
+
+do_show() {
+	[[ -z ${@} ]] || die -q "Too many parameters"
+
+	write_list_start "Current awk implementation:"
+	if [[ -L ${EROOT}/usr/bin/awk ]]; then
+		write_kv_list_entry "$(basename $(readlink ${ROOT}/usr/bin/awk))" ""
+	elif [[ -e ${EROOT}/usr/bin/awk ]]; then
+		write_kv_list_entry "(not a symlink)" ""
+	else
+		write_kv_list_entry "(unset)" ""
+	fi
+}
+
+### list action ###
+
+describe_list() {
+	echo "List available awk implementations"
+}
+
+do_list() {
+	[[ -z ${@} ]] || die -q "Too many parameters"
+
+	local i targets
+
+	targets=( $(find_targets) )
+	for (( i = 0; i < ${#targets[@]}; i++ )) ; do
+		[[ ${targets[${i}]} == $(basename $(readlink "${EROOT}"/usr/bin/awk)) ]] && \
+			targets[${i}]=$(highlight_marker "${targets[${i}]}")
+	done
+	write_list_start "Available awk implementations:"
+	write_numbered_list -m '(none found)' "${targets[@]}"
+}
+
+### set action ###
+
+describe_set() {
+	echo "Set a new awk implementation"
+}
+
+describe_set_options() {
+	echo "target : Target name or number (from 'list' action)"
+}
+
+describe_set_parameters() {
+	echo "<target>"
+}
+
+do_set() {
+	if [[ -z ${1} ]]; then
+		die -q "Not enough parameters"
+	elif [[ -n ${2} ]]; then
+		die -q "Too many parameters"
+	else
+		set_symlinks "${1}"
+	fi
+}
+
+### update action ###
+
+describe_update() {
+	echo "Automatically update the awk implementation"
+}
+
+describe_update_options() {
+	echo "ifunset : Do not override existing implementation"
+}
+
+do_update() {
+	[[ -z ${1} || ( -z ${2} && ( ${1} == ifunset || ${1} == '--if-unset' ) ) ]] || \
+		die -q "Usage error"
+
+	[[ ( ${1} == ifunset || ${1} == '--if-unset' ) \
+			&& -L ${EROOT}/usr/bin/awk && -x ${EROOT}/usr/bin/awk ]] && \
+		return
+
+	set_symlinks 1
+}
+
+# vim: set syn=sh :
diff --git a/modules/timezone.eselect b/modules/timezone.eselect
new file mode 100644
index 0000000..d2abd57
--- /dev/null
+++ b/modules/timezone.eselect
@@ -0,0 +1,132 @@
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id: $
+
+DESCRIPTION="Manages timezone selection"
+MAINTAINER="ottxor@gentoo.org"
+VERSION="0.2"
+
+ZONE_DIR="${EROOT}/usr/share/zoneinfo"
+## Functions ##
+
+# find a list of zones in ZONE_DIR
+find_targets() {
+	local t
+	[[ -d ${ZONE_DIR}/${1} ]] || die -q "Directory ${1} does not exist in ${ZONE_DIR}"
+	for t in $(find "${ZONE_DIR}/${1}" -type f | sort ) ; do
+		[[ $(file ${t}) = *"timezone data"* ]] && echo ${t#${ZONE_DIR}/}
+	done
+}
+
+### show action ###
+
+describe_show() {
+	echo "Show the current timezone selection"
+}
+
+do_show() {
+	[[ -z ${@} ]] || die -q "Too many parameters"
+	
+	local zone
+
+	[[ -f ${EROOT}/etc/timezone ]] && \
+		zone=$(grep -e "^[^#]" "${EROOT}"/etc/timezone)
+
+	write_list_start "Current timezone selection:"
+	if [[ -z ${zone} ]]; then
+		write_kv_list_entry "(unset in ${EROOT}/etc/timezone)" ""
+	elif [[ ! -f ${ZONE_DIR}/${zone} ]]; then
+		write_kv_list_entry "(invalid zone in ${EROOT}/etc/localtime)" ""
+	elif [[ -f ${EROOT}/etc/localtime ]]; then
+		cmp -s "${ZONE_DIR}/${zone}" "${EROOT}/etc/localtime" && \
+			write_kv_list_entry "${zone}" "" || \
+			write_kv_list_entry "(set to ${zone} in ${EROOT}/etc/timezone, but differs from  ${EROOT}/etc/localtime"
+	else
+		write_kv_list_entry "(set to ${zone} in ${EROOT}/etc/timezone, but unset in ${EROOT}/etc/localtime)" ""
+	fi
+}
+
+### list action ###
+
+describe_list() {
+	echo "List available timezones"
+}
+
+describe_list_options() {
+	echo "basedir : Basedir to show zones from (from 'list' action)"
+}
+
+describe_list_parameters() {
+	echo "[basedir]"
+}
+
+do_list() {
+	local basedir=
+	if [[ -n ${1} ]]; then
+		basedir="${1}"
+		shift
+		[[ -d ${ZONE_DIR}/${basedir} ]] || die -q "Directory ${basedir} does not exist in ${ZONE_DIR}"
+	fi
+		
+	[[ -z ${@} ]] || die -q "Too many parameters"
+
+	local i targets
+
+	local zone
+
+	zone=$(grep -e "^[^#]" "${EROOT}"/etc/timezone)
+	
+	targets=( $(find_targets "${basedir}") )
+	for (( i = 0; i < ${#targets[@]}; i++ )) ; do
+		[[ ${targets[${i}]} == ${zone} ]] && \
+			targets[${i}]=$(highlight_marker "${targets[${i}]}")
+	done
+	write_list_start "Available timezones:"
+	if [[ -z ${basedir} ]] ; then
+		write_numbered_list -m '(none found)' "${targets[@]}"
+	else
+		for (( i = 0; i < ${#targets[@]}; i++ )) ; do
+			write_kv_list_entry -p "${targets[i]}" ""
+		done
+	fi
+}
+
+### set action ###
+
+describe_set() {
+	echo "Set a new timezone"
+}
+
+describe_set_options() {
+	echo "target : Target name or number (from 'list' action)"
+}
+
+describe_set_parameters() {
+	echo "<target>"
+}
+
+do_set() {
+	if [[ -z ${1} ]]; then
+		die -q "Not enough parameters"
+	elif [[ -n ${2} ]]; then
+		die -q "Too many parameters"
+	fi
+
+	local target=${1} targets
+
+	if is_number "${target}" && [[ ${target} -ge 1 ]]; then
+		targets=( $(find_targets "") )
+		target=${targets[target-1]}
+	fi
+	
+	[[ -f ${ZONE_DIR}/${target} ]] || die -q "Target '${target}' doesn't appear to be valid!"
+
+	#if localtime is a symlink cp would fail
+	rm -f "${EROOT}/etc/localtime" || die -q "Couldn't remove ${EROOT}/etc/localtime"
+	cp "${ZONE_DIR}/${target}" "${EROOT}"/etc/localtime || \
+		die -q "Couldn't copy ${target} to ${EROOT}/etc/localtime"
+	echo "${target}" > "${EROOT}"/etc/timezone || \
+		die -q "Couldn't save ${target} in ${EROOT}/etc/timezone"
+}
+
+# vim: set syn=sh :