Make `eselect python` update the content of /etc/env.d/65python-docs.

1 files changed, 36 insertions, 21 deletions

diff --git a/python.eselect b/python.eselect
index 82ba77f..debd009 100644
--- a/python.eselect
+++ b/python.eselect
@@ -1,55 +1,56 @@
-# Copyright 1999-2008 Gentoo Foundation
+# Copyright 1999-2009 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id: $
 
 DESCRIPTION="Manage the /usr/bin/python and python.1 man symlinks."
-MAINTAINER="hawking@gentoo.org"
+MAINTAINER="python@gentoo.org"
 SVN_DATE='$Date$'
 VERSION=$(svn_date_to_version "${SVN_DATE}" )
 
+ENV_D_PATH="${ROOT%/}/etc/env.d"
 INTERPRETER_PATH="${ROOT%/}/usr/bin/"
 MAN_PATH="${ROOT%/}/usr/share/man/man1/"
 
-# find a list of python versions
+# Find a list of python versions
 find_targets() {
 	local interpreter
 	# Think twice before adding jython to this list. /usr/bin/jython
 	# is a bash wrapper that calls java-config, which is a python
 	# script, so you need a valid /usr/bin/python to start jython.
-	for interpreter in "${INTERPRETER_PATH}"python?.? ; do
+	for interpreter in "${INTERPRETER_PATH}"python?.?; do
 		echo ${interpreter#${INTERPRETER_PATH}}
 	done
 }
 
-# try to remove python and python.1 symlinks
+# Try to remove python and python.1 symlinks
 remove_symlinks() {
 	local symlink symlink_target symlink_target_found
 	rm -f "${INTERPRETER_PATH}"{idle,pydoc,python,python-config} &>/dev/null && \
 	rm -f "${MAN_PATH}"python.1{,.gz,.bz2,.lzma} &>/dev/null
-	for symlink in "${INTERPRETER_PATH}python"? ; do
+	for symlink in "${INTERPRETER_PATH}python"?; do
 		[[ ! -L "${symlink}" ]] && continue
 		symlink_target_found=0
-		for symlink_target in "${symlink}".? ; do
+		for symlink_target in "${symlink}".?; do
 			[[ -f "${symlink_target}" ]] && symlink_target_found=1
 		done
-		if [[ "${symlink_target_found}" -eq 0 ]] ; then
+		if [[ "${symlink_target_found}" -eq 0 ]]; then
 			rm -f "${symlink}"
 		fi
 	done
 }
 
-# set a man page symlink
+# Set a man page symlink
 set_man_symlink() {
 	local target="${1}" x extension
 
-	for x in ".1" ".1.bz2" ".1.gz" ".1.lzma" ; do
-		if [[ -e "${MAN_PATH}${target}${x}" ]] ; then
+	for x in ".1" ".1.bz2" ".1.gz" ".1.lzma"; do
+		if [[ -e "${MAN_PATH}${target}${x}" ]]; then
 			extension="${x}"
 			break
 		fi
 	done
 
-	if [[ -z "${extension}" ]] ; then
+	if [[ -z "${extension}" ]]; then
 		echo "Couldn't find a man page for ${target}; skipping." 1>&2
 		return 1
 	fi
@@ -59,14 +60,14 @@ set_man_symlink() {
 	popd 1>/dev/null
 }
 
-# set python and python.1 symlinks
+# Set python and python.1 symlinks
 set_symlinks() {
 	local target="${1}" targets=($(find_targets ))
-	if is_number "${target}" && [[ ${target} -ge 1 ]] ; then
+	if is_number "${target}" && [[ ${target} -ge 1 ]]; then
 		target=${targets[$(( ${target} - 1 ))]}
 	fi
 
-	if ! has ${target} "${targets[@]}" ; then
+	if ! has ${target} "${targets[@]}"; then
 		die -q "Invalid target ${target}"
 	fi
 	if [[ -f "${INTERPRETER_PATH}${target}" ]]; then
@@ -90,6 +91,19 @@ set_symlinks() {
 	fi
 }
 
+# Set the content of /etc/env.d/65python-docs
+set_python_docs() {
+	local path target="${1#python}" variable
+	rm -f "${ENV_D_PATH}/65python-docs"
+	if [[ -f "${ENV_D_PATH}/60python-docs-${target}" ]]; then
+		variable="PYTHONDOCS_${target//./_}"
+		path="$(. "${ENV_D_PATH}/60python-docs-${target}"; echo -n "${!variable}")"
+		if [[ -d "${path}" ]]; then
+			echo "PYTHONDOCS=\"${path}\"" > "${ENV_D_PATH}/65python-docs"
+		fi
+	fi
+}
+
 ### show action
 
 describe_show() {
@@ -112,10 +126,10 @@ do_list() {
 
 	write_list_start "Available python interpreters:"
 
-	if [[ -n ${targets[@]} ]] ; then
+	if [[ -n ${targets[@]} ]]; then
 		# mark the active python
 		local i active=$(do_show)
-		for (( i = 0 ; i < ${#targets[@]} ; i = i + 1 )) ; do
+		for ((i = 0; i < ${#targets[@]}; i = i + 1)); do
 			[[ ${targets[${i}]} == $active ]] && \
 				targets[${i}]="${targets[${i}]} $(highlight '*' )"
 		done
@@ -132,17 +146,18 @@ describe_set() {
 }
 
 do_set() {
-	if [[ -z "${1}" ]] ; then
+	if [[ -z "${1}" ]]; then
 		die -q "You didn't tell me which python interpreter to use"
 	elif [[ -n "${2}" ]]; then
 		die -q "Too many parameters"
-	elif [[ -L "${INTERPRETER_PATH}python" ]] ; then
+	elif [[ -L "${INTERPRETER_PATH}python" ]]; then
 		if ! remove_symlinks; then
 			die -q "Can't remove existing provider"
-		elif ! set_symlinks "${1}" ; then
+		elif ! set_symlinks "${1}"; then
 			die -q "Can't set new provider"
 		fi
-	elif [[ -e "${INTERPRETER_PATH}python" ]] ; then
+		set_python_docs "${1}"
+	elif [[ -e "${INTERPRETER_PATH}python" ]]; then
 		die -q "Sorry, ${INTERPRETER_PATH}python is not a symlink"
 	else
 		set_symlinks "${1}" || die -q "Can't set a new provider"