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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 1.20 2005/07/06 20:23:20 agriffis 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" 22
23INHERITED="$INHERITED $ECLASS" 23
24__python_eclass_test() {
25 __python_version_extract 2.3
26 echo -n "2.3 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
27 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
28 __python_version_extract 2.3.4
29 echo -n "2.3.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
30 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
31 __python_version_extract 2.3.5
32 echo -n "2.3.5 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
33 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
34 __python_version_extract 2.4
35 echo -n "2.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
36 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
37}
24 38
25# 39#
26# name: python_disable/enable_pyc 40# name: python_disable/enable_pyc
27# desc: tells python not to automatically recompile modules to .pyc/.pyo 41# desc: tells python not to automatically recompile modules to .pyc/.pyo
28# even if the timestamps/version stamps don't match. this is 42# even if the timestamps/version stamps don't match. this is
43# 57#
44# name: python_version 58# name: python_version
45# desc: run without arguments and it will export the version of python 59# desc: run without arguments and it will export the version of python
46# currently in use as $PYVER 60# currently in use as $PYVER
47# 61#
62
63__python_version_extract() {
64 verstr=$1
65 export PYVER_MAJOR=${verstr:0:1}
66 export PYVER_MINOR=${verstr:2:1}
67 export PYVER_MICRO=${verstr:4}
68 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
69}
70
48python_version() { 71python_version() {
49 local tmpstr 72 local tmpstr
50 python=${python:-/usr/bin/python} 73 python=${python:-/usr/bin/python}
51 tmpstr="$(${python} -V 2>&1 )" 74 tmpstr="$(${python} -V 2>&1 )"
52 export PYVER_ALL="${tmpstr#Python }" 75 export PYVER_ALL="${tmpstr#Python }"
53 76 __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} 77}
59 78
60# 79#
61# name: python_makesym 80# name: python_makesym
62# desc: run without arguments, it will create the /usr/bin/python symlinks 81# desc: run without arguments, it will create the /usr/bin/python symlinks
63# to the latest installed version 82# to the latest installed version
64# 83#
65python_makesym() { 84python_makesym() {
66 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 85 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]" 86 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
68} 87}
69 88
70# 89#
71# name: python_tkinter_exists 90# name: python_tkinter_exists
72# desc: run without arguments, it will return TRUE(0) if python is compiled 91# desc: run without arguments, checks if python was compiled with Tkinter
73# with tkinter or FALSE(1) if python is compiled without tkinter. 92# support. If not, prints an error message and dies.
74# 93#
75python_tkinter_exists() { 94python_tkinter_exists() {
76 if ! python -c "import Tkinter" >/dev/null 2>&1; then 95 if ! python -c "import Tkinter" >/dev/null 2>&1; then
77 eerror "You need to recompile python with Tkinter support." 96 eerror "You need to recompile python with Tkinter support."
78 eerror "That means: USE='tcltk' emerge python" 97 eerror "That means: USE='tcltk' emerge python"
91# if python_mod_exists gtk; then 110# if python_mod_exists gtk; then
92# echo "gtk support enabled 111# echo "gtk support enabled
93# fi 112# fi
94# 113#
95python_mod_exists() { 114python_mod_exists() {
115 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
96 if ! python -c "import $1" >/dev/null 2>&1; then 116 if ! python -c "import $1" >/dev/null 2>&1; then
97 return 1 117 return 1
98 fi 118 fi
99 return 0 119 return 0
100} 120}
134# in the supplied directory 154# in the supplied directory
135# exam: 155# exam:
136# python_mod_optimize ${ROOT}usr/share/codegen 156# python_mod_optimize ${ROOT}usr/share/codegen
137# 157#
138python_mod_optimize() { 158python_mod_optimize() {
159 local myroot
160 # strip trailing slash
161 myroot="${ROOT%/}"
162
139 # allow compiling for older python versions 163 # allow compiling for older python versions
140 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 164 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
141 PYVER=${PYTHON_OVERRIDE_PYVER} 165 PYVER=${PYTHON_OVERRIDE_PYVER}
142 else 166 else
143 python_version 167 python_version
148 compileopts="" 172 compileopts=""
149 else 173 else
150 compileopts="-q" 174 compileopts="-q"
151 fi 175 fi
152 176
153 ebegin "Byte Compiling Python modules for ${PYVER} .." 177 ebegin "Byte compiling python modules for python-${PYVER} .."
154 python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 178 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
155 python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 179 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
156 eend $? 180 eend $?
157} 181}
158 182
159# 183#
160# name: python_mod_cleanup 184# name: python_mod_cleanup
164# it will recursively scan all compiled python modules in the directories 188# it will recursively scan all compiled python modules in the directories
165# and determine if they are orphaned (eg. their corresponding .py is missing.) 189# and determine if they are orphaned (eg. their corresponding .py is missing.)
166# if they are, then it will remove their corresponding .pyc and .pyo 190# if they are, then it will remove their corresponding .pyc and .pyo
167# 191#
168python_mod_cleanup() { 192python_mod_cleanup() {
169 local SEARCH_PATH 193 local SEARCH_PATH myroot
194
195 # strip trailing slash
196 myroot="${ROOT%/}"
170 197
171 if [ $# -gt 0 ]; then 198 if [ $# -gt 0 ]; then
172 for path in $@; do 199 for path in $@; do
173 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}" 200 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
174 done 201 done
175 else 202 else
176 for path in ${ROOT}usr/lib/python*/site-packages; do 203 for path in ${myroot}/usr/lib*/python*/site-packages; do
177 SEARCH_PATH="${SEARCH_PATH} ${path}" 204 SEARCH_PATH="${SEARCH_PATH} ${path}"
178 done 205 done
179 fi 206 fi
180 207
181 for path in ${SEARCH_PATH}; do 208 for path in ${SEARCH_PATH}; do
182 einfo "Searching ${path} .." 209 einfo "Cleaning orphaned Python bytecode from ${path} .."
183 for obj in $(find ${path} -name *.pyc); do 210 for obj in $(find ${path} -name *.pyc); do
184 src_py="$(echo $obj | sed 's:c$::')" 211 src_py="${obj%c}"
185 if [ ! -f "${src_py}" ]; then 212 if [ ! -f "${src_py}" ]; then
186 einfo "Purging ${src_py}[co]" 213 einfo "Purging ${src_py}[co]"
187 rm -f ${src_py}[co] 214 rm -f ${src_py}[co]
188 fi 215 fi
189 done 216 done
217 # attempt to remove directories that maybe empty
218 for dir in $(find ${path} -type d | sort -r); do
219 rmdir ${dir} 2>/dev/null
220 done
190 done 221 done
191} 222}
192
193

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