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1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2004 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.7 2003/10/24 07:12:42 pythonhead Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.17 2005/04/23 03:40:10 pythonhead Exp $
4# 4#
5# Author: Alastair Tse <liquidx@gentoo.org> 5# Author: Alastair Tse <liquidx@gentoo.org>
6# 6#
7# A Utility Eclass that should be inherited by anything that deals with 7# A Utility Eclass that should be inherited by anything that deals with
8# Python or Python modules. 8# Python or Python modules.
11# python_version() - sets PYVER/PYVER_MAJOR/PYVER_MINOR 11# python_version() - sets PYVER/PYVER_MAJOR/PYVER_MINOR
12# python_tkinter_exists() - Checks for tkinter support in python 12# python_tkinter_exists() - Checks for tkinter support in python
13# python_mod_exists() - Checks if a python module exists 13# python_mod_exists() - Checks if a python module exists
14# python_mod_compile() - Compiles a .py file to a .pyc/.pyo 14# python_mod_compile() - Compiles a .py file to a .pyc/.pyo
15# python_mod_optimize() - Generates .pyc/.pyo precompiled scripts 15# python_mod_optimize() - Generates .pyc/.pyo precompiled scripts
16# python_mod_cleanup() - Goes through /usr/lib/python* to remove 16# python_mod_cleanup() - Goes through /usr/lib*/python* to remove
17# orphaned *.pyc *.pyo 17# orphaned *.pyc *.pyo
18# python_makesym() - Makes /usr/bin/python symlinks 18# python_makesym() - Makes /usr/bin/python symlinks
19 19
20inherit alternatives 20inherit alternatives
21 21
48python_version() { 48python_version() {
49 local tmpstr 49 local tmpstr
50 python=${python:-/usr/bin/python} 50 python=${python:-/usr/bin/python}
51 tmpstr="$(${python} -V 2>&1 )" 51 tmpstr="$(${python} -V 2>&1 )"
52 export PYVER_ALL="${tmpstr#Python }" 52 export PYVER_ALL="${tmpstr#Python }"
53
54 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1) 53 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1)
55 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2) 54 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2)
56 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-) 55 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-)
57 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}" 56 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
58} 57}
61# name: python_makesym 60# name: python_makesym
62# desc: run without arguments, it will create the /usr/bin/python symlinks 61# desc: run without arguments, it will create the /usr/bin/python symlinks
63# to the latest installed version 62# to the latest installed version
64# 63#
65python_makesym() { 64python_makesym() {
66 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 65 alternatives_auto_makesym "/usr/bin/python" "python[0-9].[0-9]"
67 alternatives_auto_makesym "/usr/bin/python2" "/usr/bin/python[0-9].[0-9]" 66 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
68} 67}
69 68
70# 69#
71# name: python_tkinter_exists 70# name: python_tkinter_exists
72# desc: run without arguments, it will return TRUE(0) if python is compiled 71# desc: run without arguments, checks if python was compiled with Tkinter
73# with tkinter or FALSE(1) if python is compiled without tkinter. 72# support. If not, prints an error message and dies.
74# 73#
75python_tkinter_exists() { 74python_tkinter_exists() {
76 if ! python -c "import Tkinter" >/dev/null 2>&1; then 75 if ! python -c "import Tkinter" >/dev/null 2>&1; then
77 eerror "You need to recompile python with Tkinter support." 76 eerror "You need to recompile python with Tkinter support."
78 eerror "That means: USE='tcltk' emerge python" 77 eerror "That means: USE='tcltk' emerge python"
91# if python_mod_exists gtk; then 90# if python_mod_exists gtk; then
92# echo "gtk support enabled 91# echo "gtk support enabled
93# fi 92# fi
94# 93#
95python_mod_exists() { 94python_mod_exists() {
95 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
96 if ! python -c "import $1" >/dev/null 2>&1; then 96 if ! python -c "import $1" >/dev/null 2>&1; then
97 return 1 97 return 1
98 fi 98 fi
99 return 0 99 return 0
100} 100}
134# in the supplied directory 134# in the supplied directory
135# exam: 135# exam:
136# python_mod_optimize ${ROOT}usr/share/codegen 136# python_mod_optimize ${ROOT}usr/share/codegen
137# 137#
138python_mod_optimize() { 138python_mod_optimize() {
139 local myroot
140 # strip trailing slash
141 myroot="${ROOT%/}"
142
139 # allow compiling for older python versions 143 # allow compiling for older python versions
140 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 144 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
141 PYVER=${PYTHON_OVERRIDE_PYVER} 145 PYVER=${PYTHON_OVERRIDE_PYVER}
142 else 146 else
143 python_version 147 python_version
148 compileopts="" 152 compileopts=""
149 else 153 else
150 compileopts="-q" 154 compileopts="-q"
151 fi 155 fi
152 156
153 ebegin "Byte Compiling Python modules for ${PYVER} .." 157 ebegin "Byte compiling python modules for python-${PYVER} .."
154 python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 158 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
155 python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 159 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
156 eend $? 160 eend $?
157} 161}
158 162
159# 163#
160# name: python_mod_cleanup 164# name: python_mod_cleanup
164# it will recursively scan all compiled python modules in the directories 168# it will recursively scan all compiled python modules in the directories
165# and determine if they are orphaned (eg. their corresponding .py is missing.) 169# and determine if they are orphaned (eg. their corresponding .py is missing.)
166# if they are, then it will remove their corresponding .pyc and .pyo 170# if they are, then it will remove their corresponding .pyc and .pyo
167# 171#
168python_mod_cleanup() { 172python_mod_cleanup() {
169 local SEARCH_PATH 173 local SEARCH_PATH myroot
174
175 # strip trailing slash
176 myroot="${ROOT%/}"
170 177
171 if [ $# -gt 0 ]; then 178 if [ $# -gt 0 ]; then
172 for path in $@; do 179 for path in $@; do
173 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}" 180 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
174 done 181 done
175 else 182 else
176 for path in ${ROOT}usr/lib/python*/site-packages; do 183 for path in ${myroot}/usr/lib*/python*/site-packages; do
177 SEARCH_PATH="${SEARCH_PATH} ${path}" 184 SEARCH_PATH="${SEARCH_PATH} ${path}"
178 done 185 done
179 fi 186 fi
180 187
181 for path in ${SEARCH_PATH}; do 188 for path in ${SEARCH_PATH}; do
182 einfo "Searching ${path} .." 189 einfo "Cleaning orphaned Python bytecode from ${path} .."
183 for obj in $(find ${path} -name *.pyc); do 190 for obj in $(find ${path} -name *.pyc); do
184 src_py="$(echo $obj | sed 's:c$::')" 191 src_py="${obj%c}"
185 if [ ! -f "${src_py}" ]; then 192 if [ ! -f "${src_py}" ]; then
186 einfo "Purging ${src_py}[co]" 193 einfo "Purging ${src_py}[co]"
187 rm -f ${src_py}[co] 194 rm -f ${src_py}[co]
188 fi 195 fi
189 done 196 done
197 # attempt to remove directories that maybe empty
198 for dir in $(find ${path} -type d | sort -r); do
199 rmdir ${dir} 2>/dev/null
200 done
190 done 201 done
191} 202}
192
193

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