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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 1.4 2003/10/09 15:11:24 liquidx Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.24 2006/06/10 16:19:54 swegener 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 $ECLASS"
24 22
23if [[ -n "${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}
42
43#
44# name: python_disable/enable_pyc
45# desc: tells python not to automatically recompile modules to .pyc/.pyo
46# even if the timestamps/version stamps don't match. this is
47# done to protect sandbox.
48#
49# note: supported by >=dev-lang/python-2.2.3-r3 only.
50#
25python_disable_pyc() { 51python_disable_pyc() {
26 export PYTHON_DONTCOMPILE=1 52 export PYTHON_DONTCOMPILE=1
27} 53}
28 54
29python_enable_pyc() { 55python_enable_pyc() {
35# 61#
36# name: python_version 62# name: python_version
37# 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
38# currently in use as $PYVER 64# currently in use as $PYVER
39# 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
40python_version() { 75python_version() {
41 local tmpstr 76 local tmpstr
42 python=${python:-/usr/bin/python} 77 python=${python:-/usr/bin/python}
43 tmpstr="$(${python} -V 2>&1 )" 78 tmpstr="$(${python} -V 2>&1 )"
44 export PYVER_ALL="${tmpstr#Python }" 79 export PYVER_ALL="${tmpstr#Python }"
45 80 __python_version_extract $PYVER_ALL
46 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1)
47 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2)
48 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-)
49 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
50} 81}
51 82
52# 83#
53# name: python_makesym 84# name: python_makesym
54# 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
55# to the latest installed version 86# to the latest installed version
56# 87#
57python_makesym() { 88python_makesym() {
58 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]"
59 alternatives_auto_makesym "/usr/bin/python2" "/usr/bin/python[0-9].[0-9]" 90 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
60} 91}
61 92
62# 93#
63# name: python_tkinter_exists 94# name: python_tkinter_exists
64# 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
65# with tkinter or FALSE(1) if python is compiled without tkinter. 96# support. If not, prints an error message and dies.
66# 97#
67python_tkinter_exists() { 98python_tkinter_exists() {
68 if ! python -c "import Tkinter" >/dev/null 2>&1; then 99 if ! python -c "import Tkinter" >/dev/null 2>&1; then
69 eerror "You need to recompile python with Tkinter support." 100 eerror "You need to recompile python with Tkinter support."
70 eerror "That means: USE='tcltk' emerge python" 101 eerror "That means: USE='tcltk' emerge python"
73 fi 104 fi
74} 105}
75 106
76# 107#
77# name: python_mod_exists 108# name: python_mod_exists
78# desc: run with the module name as an argument. it will check if a 109# desc: run with the module name as an argument. it will check if a
79# python module is installed and loadable. it will return 110# python module is installed and loadable. it will return
80# TRUE(0) if the module exists, and FALSE(1) if the module does 111# TRUE(0) if the module exists, and FALSE(1) if the module does
81# not exist. 112# not exist.
82# exam: 113# exam:
83# if python_mod_exists gtk; then 114# if python_mod_exists gtk; then
84# echo "gtk support enabled 115# echo "gtk support enabled
85# fi 116# fi
86# 117#
87python_mod_exists() { 118python_mod_exists() {
119 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
88 if ! python -c "import $1" >/dev/null 2>&1; then 120 if ! python -c "import $1" >/dev/null 2>&1; then
89 return 1 121 return 1
90 fi 122 fi
91 return 0 123 return 0
92} 124}
97# should only be run in pkg_postinst() 129# should only be run in pkg_postinst()
98# exam: 130# exam:
99# python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py 131# python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
100# 132#
101python_mod_compile() { 133python_mod_compile() {
134 # allow compiling for older python versions
135 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
136 PYVER=${PYTHON_OVERRIDE_PYVER}
137 else
138 python_version
139 fi
140
102 if [ -f "$1" ]; then 141 if [ -f "$1" ]; then
103 python -c "import py_compile; py_compile.compile('${1}')" || \ 142 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
104 ewarn "Failed to compile ${1}" 143 ewarn "Failed to compile ${1}"
105 python -O -c "import py_compile; py_compile.compile('${1}')" || \ 144 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
106 ewarn "Failed to compile ${1}" 145 ewarn "Failed to compile ${1}"
107 else 146 else
108 ewarn "Unable to find ${1}" 147 ewarn "Unable to find ${1}"
109 fi 148 fi
110} 149}
111 150
112# 151#
113# name: python_mod_optimize 152# name: python_mod_optimize
114# desc: if no arguments supplied, it will recompile all modules under 153# desc: if no arguments supplied, it will recompile all modules under
115# sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..) 154# sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..)
116# no recursively 155# no recursively
117# 156#
118# if supplied with arguments, it will recompile all modules recursively 157# if supplied with arguments, it will recompile all modules recursively
119# in the supplied directory 158# in the supplied directory
120# exam: 159# exam:
121# python_mod_optimize ${ROOT}usr/share/codegen 160# python_mod_optimize ${ROOT}usr/share/codegen
122# 161#
123python_mod_optimize() { 162python_mod_optimize() {
163 local myroot
164 # strip trailing slash
165 myroot="${ROOT%/}"
166
167 # allow compiling for older python versions
168 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
169 PYVER=${PYTHON_OVERRIDE_PYVER}
170 else
124 python_version 171 python_version
172 fi
173
174 # set opts
175 if [ "${PYVER}" = "2.2" ]; then
176 compileopts=""
177 else
178 compileopts="-q"
179 fi
180
125 einfo "Byte Compiling Python modules for ${PYVER} .." 181 ebegin "Byte compiling python modules for python-${PYVER} .."
126 python ${ROOT}usr/lib/python${PYVER}/compileall.py -q $@ 182 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
127 python -O ${ROOT}usr/lib/python${PYVER}/compileall.py -q $@ 183 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
184 eend $?
128} 185}
129 186
130# 187#
131# name: python_mod_cleanup 188# name: python_mod_cleanup
132# desc: run with optional arguments, where arguments are directories of 189# desc: run with optional arguments, where arguments are directories of
133# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9] 190# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
134# 191#
135# it will recursively scan all compiled python modules in the directories 192# it will recursively scan all compiled python modules in the directories
136# and determine if they are orphaned (eg. their corresponding .py is missing.) 193# and determine if they are orphaned (eg. their corresponding .py is missing.)
137# if they are, then it will remove their corresponding .pyc and .pyo 194# if they are, then it will remove their corresponding .pyc and .pyo
138# 195#
139python_mod_cleanup() { 196python_mod_cleanup() {
140 local SEARCH_PATH 197 local SEARCH_PATH myroot
141 198
199 # strip trailing slash
200 myroot="${ROOT%/}"
201
202 if [ $# -gt 0 ]; then
142 for path in $@; do 203 for path in $@; do
143 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${dir}" 204 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
144 done 205 done
145 206 else
146 for path in ${ROOT}usr/lib/python*/site-packages; do 207 for path in ${myroot}/usr/lib*/python*/site-packages; do
147 SEARCH_PATH="${SEARCH_PATH} ${path}" 208 SEARCH_PATH="${SEARCH_PATH} ${path}"
148 done 209 done
149 210 fi
211
150 for path in ${SEARCH_PATH}; do 212 for path in ${SEARCH_PATH}; do
151 einfo "Searching ${path} .." 213 einfo "Cleaning orphaned Python bytecode from ${path} .."
152 for obj in $(find ${path} -name *.pyc); do 214 for obj in $(find ${path} -name *.pyc); do
153 src_py="$(echo $obj | sed 's:c$::')" 215 src_py="${obj%c}"
154 if [ ! -f "${src_py}" ]; then 216 if [ ! -f "${src_py}" ]; then
155 einfo "Purging ${src_py}[co]" 217 einfo "Purging ${src_py}[co]"
156 rm -f ${src_py}[co] 218 rm -f ${src_py}[co]
157 fi 219 fi
158 done 220 done
221 # attempt to remove directories that maybe empty
222 for dir in $(find ${path} -type d | sort -r); do
223 rmdir ${dir} 2>/dev/null
224 done
159 done 225 done
160} 226}
161
162

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