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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 1.19 2005/07/06 20:20:04 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"
23INHERITED="$INHERITED $ECLASS" 22INHERITED="$INHERITED $ECLASS"
23
24
25__python_eclass_test() {
26 __python_version_extract 2.3
27 echo -n "2.3 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
28 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
29 __python_version_extract 2.3.4
30 echo -n "2.3.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
31 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
32 __python_version_extract 2.3.5
33 echo -n "2.3.5 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
34 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
35 __python_version_extract 2.4
36 echo -n "2.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
37 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
38}
24 39
25# 40#
26# name: python_disable/enable_pyc 41# name: python_disable/enable_pyc
27# desc: tells python not to automatically recompile modules to .pyc/.pyo 42# desc: tells python not to automatically recompile modules to .pyc/.pyo
28# even if the timestamps/version stamps don't match. this is 43# even if the timestamps/version stamps don't match. this is
43# 58#
44# name: python_version 59# name: python_version
45# desc: run without arguments and it will export the version of python 60# desc: run without arguments and it will export the version of python
46# currently in use as $PYVER 61# currently in use as $PYVER
47# 62#
63
64__python_version_extract() {
65 verstr=$1
66 export PYVER_MAJOR=${verstr:0:1}
67 export PYVER_MINOR=${verstr:2:1}
68 export PYVER_MICRO=${verstr:4}
69 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
70}
71
48python_version() { 72python_version() {
49 local tmpstr 73 local tmpstr
50 python=${python:-/usr/bin/python} 74 python=${python:-/usr/bin/python}
51 tmpstr="$(${python} -V 2>&1 )" 75 tmpstr="$(${python} -V 2>&1 )"
52 export PYVER_ALL="${tmpstr#Python }" 76 export PYVER_ALL="${tmpstr#Python }"
53 77 __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} 78}
59 79
60# 80#
61# name: python_makesym 81# name: python_makesym
62# desc: run without arguments, it will create the /usr/bin/python symlinks 82# desc: run without arguments, it will create the /usr/bin/python symlinks
63# to the latest installed version 83# to the latest installed version
64# 84#
65python_makesym() { 85python_makesym() {
66 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 86 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]" 87 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
68} 88}
69 89
70# 90#
71# name: python_tkinter_exists 91# name: python_tkinter_exists
72# desc: run without arguments, it will return TRUE(0) if python is compiled 92# desc: run without arguments, checks if python was compiled with Tkinter
73# with tkinter or FALSE(1) if python is compiled without tkinter. 93# support. If not, prints an error message and dies.
74# 94#
75python_tkinter_exists() { 95python_tkinter_exists() {
76 if ! python -c "import Tkinter" >/dev/null 2>&1; then 96 if ! python -c "import Tkinter" >/dev/null 2>&1; then
77 eerror "You need to recompile python with Tkinter support." 97 eerror "You need to recompile python with Tkinter support."
78 eerror "That means: USE='tcltk' emerge python" 98 eerror "That means: USE='tcltk' emerge python"
91# if python_mod_exists gtk; then 111# if python_mod_exists gtk; then
92# echo "gtk support enabled 112# echo "gtk support enabled
93# fi 113# fi
94# 114#
95python_mod_exists() { 115python_mod_exists() {
116 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
96 if ! python -c "import $1" >/dev/null 2>&1; then 117 if ! python -c "import $1" >/dev/null 2>&1; then
97 return 1 118 return 1
98 fi 119 fi
99 return 0 120 return 0
100} 121}
134# in the supplied directory 155# in the supplied directory
135# exam: 156# exam:
136# python_mod_optimize ${ROOT}usr/share/codegen 157# python_mod_optimize ${ROOT}usr/share/codegen
137# 158#
138python_mod_optimize() { 159python_mod_optimize() {
160 local myroot
161 # strip trailing slash
162 myroot="${ROOT%/}"
163
139 # allow compiling for older python versions 164 # allow compiling for older python versions
140 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 165 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
141 PYVER=${PYTHON_OVERRIDE_PYVER} 166 PYVER=${PYTHON_OVERRIDE_PYVER}
142 else 167 else
143 python_version 168 python_version
148 compileopts="" 173 compileopts=""
149 else 174 else
150 compileopts="-q" 175 compileopts="-q"
151 fi 176 fi
152 177
153 ebegin "Byte Compiling Python modules for ${PYVER} .." 178 ebegin "Byte compiling python modules for python-${PYVER} .."
154 python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 179 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
155 python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 180 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
156 eend $? 181 eend $?
157} 182}
158 183
159# 184#
160# name: python_mod_cleanup 185# name: python_mod_cleanup
164# it will recursively scan all compiled python modules in the directories 189# it will recursively scan all compiled python modules in the directories
165# and determine if they are orphaned (eg. their corresponding .py is missing.) 190# and determine if they are orphaned (eg. their corresponding .py is missing.)
166# if they are, then it will remove their corresponding .pyc and .pyo 191# if they are, then it will remove their corresponding .pyc and .pyo
167# 192#
168python_mod_cleanup() { 193python_mod_cleanup() {
169 local SEARCH_PATH 194 local SEARCH_PATH myroot
195
196 # strip trailing slash
197 myroot="${ROOT%/}"
170 198
171 if [ $# -gt 0 ]; then 199 if [ $# -gt 0 ]; then
172 for path in $@; do 200 for path in $@; do
173 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}" 201 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
174 done 202 done
175 else 203 else
176 for path in ${ROOT}usr/lib/python*/site-packages; do 204 for path in ${myroot}/usr/lib*/python*/site-packages; do
177 SEARCH_PATH="${SEARCH_PATH} ${path}" 205 SEARCH_PATH="${SEARCH_PATH} ${path}"
178 done 206 done
179 fi 207 fi
180 208
181 for path in ${SEARCH_PATH}; do 209 for path in ${SEARCH_PATH}; do
182 einfo "Searching ${path} .." 210 einfo "Cleaning orphaned Python bytecode from ${path} .."
183 for obj in $(find ${path} -name *.pyc); do 211 for obj in $(find ${path} -name *.pyc); do
184 src_py="$(echo $obj | sed 's:c$::')" 212 src_py="${obj%c}"
185 if [ ! -f "${src_py}" ]; then 213 if [ ! -f "${src_py}" ]; then
186 einfo "Purging ${src_py}[co]" 214 einfo "Purging ${src_py}[co]"
187 rm -f ${src_py}[co] 215 rm -f ${src_py}[co]
188 fi 216 fi
189 done 217 done
218 # attempt to remove directories that maybe empty
219 for dir in $(find ${path} -type d | sort -r); do
220 rmdir ${dir} 2>/dev/null
221 done
190 done 222 done
191} 223}
192
193

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