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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 1.27 2006/08/07 00:21:49 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" 22
23INHERITED="$INHERITED $ECLASS" 23if [[ -n "${NEED_PYTHON}" ]] ; then
24 DEPEND=">=dev-lang/python-${NEED_PYTHON}"
25 RDEPEND="${DEPEND}"
26fi
27
28__python_eclass_test() {
29 __python_version_extract 2.3
30 echo -n "2.3 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
31 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
32 __python_version_extract 2.3.4
33 echo -n "2.3.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
34 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
35 __python_version_extract 2.3.5
36 echo -n "2.3.5 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
37 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
38 __python_version_extract 2.4
39 echo -n "2.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
40 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
41}
24 42
25# 43#
26# name: python_disable/enable_pyc 44# name: python_disable/enable_pyc
27# desc: tells python not to automatically recompile modules to .pyc/.pyo 45# desc: tells python not to automatically recompile modules to .pyc/.pyo
28# even if the timestamps/version stamps don't match. this is 46# even if the timestamps/version stamps don't match. this is
43# 61#
44# name: python_version 62# name: python_version
45# desc: run without arguments and it will export the version of python 63# desc: run without arguments and it will export the version of python
46# currently in use as $PYVER 64# currently in use as $PYVER
47# 65#
66
67__python_version_extract() {
68 verstr=$1
69 export PYVER_MAJOR=${verstr:0:1}
70 export PYVER_MINOR=${verstr:2:1}
71 export PYVER_MICRO=${verstr:4}
72 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
73}
74
48python_version() { 75python_version() {
49 local tmpstr 76 local tmpstr
50 python=${python:-/usr/bin/python} 77 python=${python:-/usr/bin/python}
51 tmpstr="$(${python} -V 2>&1 )" 78 tmpstr="$(${python} -V 2>&1 )"
52 export PYVER_ALL="${tmpstr#Python }" 79 export PYVER_ALL="${tmpstr#Python }"
53 80 __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} 81}
59 82
60# 83#
61# name: python_makesym 84# name: python_makesym
62# desc: run without arguments, it will create the /usr/bin/python symlinks 85# desc: run without arguments, it will create the /usr/bin/python symlinks
63# to the latest installed version 86# to the latest installed version
64# 87#
65python_makesym() { 88python_makesym() {
66 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 89 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]" 90 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
68} 91}
69 92
70# 93#
71# name: python_tkinter_exists 94# name: python_tkinter_exists
72# desc: run without arguments, it will return TRUE(0) if python is compiled 95# desc: run without arguments, checks if python was compiled with Tkinter
73# with tkinter or FALSE(1) if python is compiled without tkinter. 96# support. If not, prints an error message and dies.
74# 97#
75python_tkinter_exists() { 98python_tkinter_exists() {
76 if ! python -c "import Tkinter" >/dev/null 2>&1; then 99 if ! python -c "import Tkinter" >/dev/null 2>&1; then
77 eerror "You need to recompile python with Tkinter support." 100 eerror "You need to recompile python with Tkinter support."
78 eerror "That means: USE='tcltk' emerge python" 101 eerror "Try adding: 'dev-lang/python X tk'"
102 eerror "in to /etc/portage/package.use"
79 echo 103 echo
80 die "missing tkinter support with installed python" 104 die "missing tkinter support with installed python"
81 fi 105 fi
82} 106}
83 107
91# if python_mod_exists gtk; then 115# if python_mod_exists gtk; then
92# echo "gtk support enabled 116# echo "gtk support enabled
93# fi 117# fi
94# 118#
95python_mod_exists() { 119python_mod_exists() {
120 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
96 if ! python -c "import $1" >/dev/null 2>&1; then 121 if ! python -c "import $1" >/dev/null 2>&1; then
97 return 1 122 return 1
98 fi 123 fi
99 return 0 124 return 0
100} 125}
134# in the supplied directory 159# in the supplied directory
135# exam: 160# exam:
136# python_mod_optimize ${ROOT}usr/share/codegen 161# python_mod_optimize ${ROOT}usr/share/codegen
137# 162#
138python_mod_optimize() { 163python_mod_optimize() {
164 local myroot
165 # strip trailing slash
166 myroot="${ROOT%/}"
167
139 # allow compiling for older python versions 168 # allow compiling for older python versions
140 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 169 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
141 PYVER=${PYTHON_OVERRIDE_PYVER} 170 PYVER=${PYTHON_OVERRIDE_PYVER}
142 else 171 else
143 python_version 172 python_version
148 compileopts="" 177 compileopts=""
149 else 178 else
150 compileopts="-q" 179 compileopts="-q"
151 fi 180 fi
152 181
153 ebegin "Byte Compiling Python modules for ${PYVER} .." 182 ebegin "Byte compiling python modules for python-${PYVER} .."
154 python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 183 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
155 python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 184 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
156 eend $? 185 eend $?
157} 186}
158 187
159# 188#
160# name: python_mod_cleanup 189# name: python_mod_cleanup
164# it will recursively scan all compiled python modules in the directories 193# it will recursively scan all compiled python modules in the directories
165# and determine if they are orphaned (eg. their corresponding .py is missing.) 194# and determine if they are orphaned (eg. their corresponding .py is missing.)
166# if they are, then it will remove their corresponding .pyc and .pyo 195# if they are, then it will remove their corresponding .pyc and .pyo
167# 196#
168python_mod_cleanup() { 197python_mod_cleanup() {
169 local SEARCH_PATH 198 local SEARCH_PATH myroot
199
200 # strip trailing slash
201 myroot="${ROOT%/}"
170 202
171 if [ $# -gt 0 ]; then 203 if [ $# -gt 0 ]; then
172 for path in $@; do 204 for path in $@; do
173 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}" 205 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
174 done 206 done
175 else 207 else
176 for path in ${ROOT}usr/lib/python*/site-packages; do 208 for path in ${myroot}/usr/lib*/python*/site-packages; do
177 SEARCH_PATH="${SEARCH_PATH} ${path}" 209 SEARCH_PATH="${SEARCH_PATH} ${path}"
178 done 210 done
179 fi 211 fi
180 212
181 for path in ${SEARCH_PATH}; do 213 for path in ${SEARCH_PATH}; do
182 einfo "Searching ${path} .." 214 einfo "Cleaning orphaned Python bytecode from ${path} .."
183 for obj in $(find ${path} -name *.pyc); do 215 for obj in $(find ${path} -name *.pyc); do
184 src_py="$(echo $obj | sed 's:c$::')" 216 src_py="${obj%c}"
185 if [ ! -f "${src_py}" ]; then 217 if [ ! -f "${src_py}" ]; then
186 einfo "Purging ${src_py}[co]" 218 einfo "Purging ${src_py}[co]"
187 rm -f ${src_py}[co] 219 rm -f ${src_py}[co]
188 fi 220 fi
189 done 221 done
222 # attempt to remove directories that maybe empty
223 for dir in $(find ${path} -type d | sort -r); do
224 rmdir ${dir} 2>/dev/null
225 done
190 done 226 done
191} 227}
192
193

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