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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 1.18 2005/04/23 10:29:51 liquidx 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
22ECLASS="python" 22ECLASS="python"
23INHERITED="$INHERITED $ECLASS" 23INHERITED="$INHERITED $ECLASS"
24
25
26__python_eclass_test() {
27 __python_version_extract 2.3
28 echo -n "2.3 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
29 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
30 __python_version_extract 2.3.4
31 echo -n "2.3.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
32 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
33 __python_version_extract 2.3.5
34 echo -n "2.3.5 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
35 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
36 __python_version_extract 2.4
37 echo -n "2.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
38 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
39}
24 40
25# 41#
26# name: python_disable/enable_pyc 42# name: python_disable/enable_pyc
27# desc: tells python not to automatically recompile modules to .pyc/.pyo 43# desc: tells python not to automatically recompile modules to .pyc/.pyo
28# even if the timestamps/version stamps don't match. this is 44# even if the timestamps/version stamps don't match. this is
43# 59#
44# name: python_version 60# name: python_version
45# desc: run without arguments and it will export the version of python 61# desc: run without arguments and it will export the version of python
46# currently in use as $PYVER 62# currently in use as $PYVER
47# 63#
64
65__python_version_extract() {
66 verstr=$1
67 export PYVER_MAJOR=${verstr:0:1}
68 export PYVER_MINOR=${verstr:2:1}
69 export PYVER_MICRO=${verstr:4}
70 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
71}
72
48python_version() { 73python_version() {
49 local tmpstr 74 local tmpstr
50 python=${python:-/usr/bin/python} 75 python=${python:-/usr/bin/python}
51 tmpstr="$(${python} -V 2>&1 )" 76 tmpstr="$(${python} -V 2>&1 )"
52 export PYVER_ALL="${tmpstr#Python }" 77 export PYVER_ALL="${tmpstr#Python }"
53 78 __python_version_extract $PYVER_ALL
54 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1)
55 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2)
56 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-)
57 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
58} 79}
59 80
60# 81#
61# name: python_makesym 82# name: python_makesym
62# desc: run without arguments, it will create the /usr/bin/python symlinks 83# desc: run without arguments, it will create the /usr/bin/python symlinks
63# to the latest installed version 84# to the latest installed version
64# 85#
65python_makesym() { 86python_makesym() {
66 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 87 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]" 88 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
68} 89}
69 90
70# 91#
71# name: python_tkinter_exists 92# name: python_tkinter_exists
72# desc: run without arguments, it will return TRUE(0) if python is compiled 93# desc: run without arguments, checks if python was compiled with Tkinter
73# with tkinter or FALSE(1) if python is compiled without tkinter. 94# support. If not, prints an error message and dies.
74# 95#
75python_tkinter_exists() { 96python_tkinter_exists() {
76 if ! python -c "import Tkinter" >/dev/null 2>&1; then 97 if ! python -c "import Tkinter" >/dev/null 2>&1; then
77 eerror "You need to recompile python with Tkinter support." 98 eerror "You need to recompile python with Tkinter support."
78 eerror "That means: USE='tcltk' emerge python" 99 eerror "That means: USE='tcltk' emerge python"
91# if python_mod_exists gtk; then 112# if python_mod_exists gtk; then
92# echo "gtk support enabled 113# echo "gtk support enabled
93# fi 114# fi
94# 115#
95python_mod_exists() { 116python_mod_exists() {
117 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
96 if ! python -c "import $1" >/dev/null 2>&1; then 118 if ! python -c "import $1" >/dev/null 2>&1; then
97 return 1 119 return 1
98 fi 120 fi
99 return 0 121 return 0
100} 122}
134# in the supplied directory 156# in the supplied directory
135# exam: 157# exam:
136# python_mod_optimize ${ROOT}usr/share/codegen 158# python_mod_optimize ${ROOT}usr/share/codegen
137# 159#
138python_mod_optimize() { 160python_mod_optimize() {
161 local myroot
162 # strip trailing slash
163 myroot="${ROOT%/}"
164
139 # allow compiling for older python versions 165 # allow compiling for older python versions
140 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 166 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
141 PYVER=${PYTHON_OVERRIDE_PYVER} 167 PYVER=${PYTHON_OVERRIDE_PYVER}
142 else 168 else
143 python_version 169 python_version
148 compileopts="" 174 compileopts=""
149 else 175 else
150 compileopts="-q" 176 compileopts="-q"
151 fi 177 fi
152 178
153 ebegin "Byte Compiling Python modules for ${PYVER} .." 179 ebegin "Byte compiling python modules for python-${PYVER} .."
154 python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 180 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
155 python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 181 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
156 eend $? 182 eend $?
157} 183}
158 184
159# 185#
160# name: python_mod_cleanup 186# name: python_mod_cleanup
164# it will recursively scan all compiled python modules in the directories 190# it will recursively scan all compiled python modules in the directories
165# and determine if they are orphaned (eg. their corresponding .py is missing.) 191# and determine if they are orphaned (eg. their corresponding .py is missing.)
166# if they are, then it will remove their corresponding .pyc and .pyo 192# if they are, then it will remove their corresponding .pyc and .pyo
167# 193#
168python_mod_cleanup() { 194python_mod_cleanup() {
169 local SEARCH_PATH 195 local SEARCH_PATH myroot
196
197 # strip trailing slash
198 myroot="${ROOT%/}"
170 199
171 if [ $# -gt 0 ]; then 200 if [ $# -gt 0 ]; then
172 for path in $@; do 201 for path in $@; do
173 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}" 202 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
174 done 203 done
175 else 204 else
176 for path in ${ROOT}usr/lib/python*/site-packages; do 205 for path in ${myroot}/usr/lib*/python*/site-packages; do
177 SEARCH_PATH="${SEARCH_PATH} ${path}" 206 SEARCH_PATH="${SEARCH_PATH} ${path}"
178 done 207 done
179 fi 208 fi
180 209
181 for path in ${SEARCH_PATH}; do 210 for path in ${SEARCH_PATH}; do
182 einfo "Searching ${path} .." 211 einfo "Cleaning orphaned Python bytecode from ${path} .."
183 for obj in $(find ${path} -name *.pyc); do 212 for obj in $(find ${path} -name *.pyc); do
184 src_py="$(echo $obj | sed 's:c$::')" 213 src_py="${obj%c}"
185 if [ ! -f "${src_py}" ]; then 214 if [ ! -f "${src_py}" ]; then
186 einfo "Purging ${src_py}[co]" 215 einfo "Purging ${src_py}[co]"
187 rm -f ${src_py}[co] 216 rm -f ${src_py}[co]
188 fi 217 fi
189 done 218 done
219 # attempt to remove directories that maybe empty
220 for dir in $(find ${path} -type d | sort -r); do
221 rmdir ${dir} 2>/dev/null
222 done
190 done 223 done
191} 224}
192
193

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