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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 1.2 2003/10/09 08:41:40 liquidx Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.16 2005/04/20 15:43:37 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 24
25#
26# name: python_disable/enable_pyc
27# desc: tells python not to automatically recompile modules to .pyc/.pyo
28# even if the timestamps/version stamps don't match. this is
29# done to protect sandbox.
30#
31# note: supported by >=dev-lang/python-2.2.3-r3 only.
32#
25python_disable_pyc() { 33python_disable_pyc() {
26 PYTHON_DONTCOMPILE=1 34 export PYTHON_DONTCOMPILE=1
27} 35}
36
37python_enable_pyc() {
38 unset PYTHON_DONTCOMPILE
39}
40
41python_disable_pyc
28 42
29# 43#
30# name: python_version 44# name: python_version
31# desc: run without arguments and it will export the version of python 45# desc: run without arguments and it will export the version of python
32# currently in use as $PYVER 46# currently in use as $PYVER
35 local tmpstr 49 local tmpstr
36 python=${python:-/usr/bin/python} 50 python=${python:-/usr/bin/python}
37 tmpstr="$(${python} -V 2>&1 )" 51 tmpstr="$(${python} -V 2>&1 )"
38 export PYVER_ALL="${tmpstr#Python }" 52 export PYVER_ALL="${tmpstr#Python }"
39 53
40 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1) 54 export PYVER="${PYVER_ALL%.*}"
41 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2) 55 export PYVER_MAJOR="${PYVER%.*}"
42 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-) 56 export PYVER_MINOR="${PYVER##*.}"
43 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}" 57 export PYVER_MICRO="${PYVER_ALL##*.}"
44} 58}
45 59
46# 60#
47# name: python_makesym 61# name: python_makesym
48# desc: run without arguments, it will create the /usr/bin/python symlinks 62# desc: run without arguments, it will create the /usr/bin/python symlinks
49# to the latest installed version 63# to the latest installed version
50# 64#
51python_makesym() { 65python_makesym() {
52 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 66 alternatives_auto_makesym "/usr/bin/python" "python[0-9].[0-9]"
53 alternatives_auto_makesym "/usr/bin/python2" "/usr/bin/python[0-9].[0-9]" 67 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
54} 68}
55 69
56# 70#
57# name: python_tkinter_exists 71# name: python_tkinter_exists
58# desc: run without arguments, it will return TRUE(0) if python is compiled 72# desc: run without arguments, checks if python was compiled with Tkinter
59# with tkinter or FALSE(1) if python is compiled without tkinter. 73# support. If not, prints an error message and dies.
60# 74#
61python_tkinter_exists() { 75python_tkinter_exists() {
62 if ! python -c "import Tkinter" >/dev/null 2>&1; then 76 if ! python -c "import Tkinter" >/dev/null 2>&1; then
63 eerror "You need to recompile python with Tkinter support." 77 eerror "You need to recompile python with Tkinter support."
64 eerror "That means: USE='tcltk' emerge python" 78 eerror "That means: USE='tcltk' emerge python"
67 fi 81 fi
68} 82}
69 83
70# 84#
71# name: python_mod_exists 85# name: python_mod_exists
72# desc: run with the module name as an argument. it will check if a 86# desc: run with the module name as an argument. it will check if a
73# python module is installed and loadable. it will return 87# python module is installed and loadable. it will return
74# TRUE(0) if the module exists, and FALSE(1) if the module does 88# TRUE(0) if the module exists, and FALSE(1) if the module does
75# not exist. 89# not exist.
76# exam: 90# exam:
77# if python_mod_exists gtk; then 91# if python_mod_exists gtk; then
78# echo "gtk support enabled 92# echo "gtk support enabled
79# fi 93# fi
80# 94#
81python_mod_exists() { 95python_mod_exists() {
96 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
82 if ! python -c "import $1" >/dev/null 2>&1; then 97 if ! python -c "import $1" >/dev/null 2>&1; then
83 return 1 98 return 1
84 fi 99 fi
85 return 0 100 return 0
86} 101}
91# should only be run in pkg_postinst() 106# should only be run in pkg_postinst()
92# exam: 107# exam:
93# python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py 108# python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
94# 109#
95python_mod_compile() { 110python_mod_compile() {
111 # allow compiling for older python versions
112 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
113 PYVER=${PYTHON_OVERRIDE_PYVER}
114 else
115 python_version
116 fi
117
96 if [ -f "$1" ]; then 118 if [ -f "$1" ]; then
97 python -c "import py_compile; py_compile.compile('${1}')" || \ 119 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
98 ewarn "Failed to compile ${1}" 120 ewarn "Failed to compile ${1}"
99 python -O -c "import py_compile; py_compile.compile('${1}')" || \ 121 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
100 ewarn "Failed to compile ${1}" 122 ewarn "Failed to compile ${1}"
101 else 123 else
102 ewarn "Unable to find ${1}" 124 ewarn "Unable to find ${1}"
103 fi 125 fi
104} 126}
105 127
106# 128#
107# name: python_mod_optimize 129# name: python_mod_optimize
108# desc: if no arguments supplied, it will recompile all modules under 130# desc: if no arguments supplied, it will recompile all modules under
109# sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..) 131# sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..)
110# no recursively 132# no recursively
111# 133#
112# if supplied with arguments, it will recompile all modules recursively 134# if supplied with arguments, it will recompile all modules recursively
113# in the supplied directory 135# in the supplied directory
114# exam: 136# exam:
115# python_mod_optimize ${ROOT}usr/share/codegen 137# python_mod_optimize ${ROOT}usr/share/codegen
116# 138#
117python_mod_optimize() { 139python_mod_optimize() {
118 einfo "Byte Compiling Python modules .." 140 local myroot
141 # strip trailing slash
142 myroot="${ROOT%/}"
143
144 # allow compiling for older python versions
145 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
146 PYVER=${PYTHON_OVERRIDE_PYVER}
147 else
119 python_version 148 python_version
120 echo ${PYVER} 149 fi
121 python ${ROOT}usr/lib/python${PYVER}/compileall.py $@ 150
151 # set opts
152 if [ "${PYVER}" = "2.2" ]; then
153 compileopts=""
154 else
155 compileopts="-q"
156 fi
157
158 ebegin "Byte compiling python modules for python-${PYVER} .."
159 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
160 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
161 eend $?
122} 162}
123 163
124# 164#
125# name: python_mod_cleanup 165# name: python_mod_cleanup
126# desc: run with optional arguments, where arguments are directories of 166# desc: run with optional arguments, where arguments are directories of
127# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9] 167# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
128# 168#
129# it will recursively scan all compiled python modules in the directories 169# it will recursively scan all compiled python modules in the directories
130# and determine if they are orphaned (eg. their corresponding .py is missing.) 170# and determine if they are orphaned (eg. their corresponding .py is missing.)
131# if they are, then it will remove their corresponding .pyc and .pyo 171# if they are, then it will remove their corresponding .pyc and .pyo
132# 172#
133python_mod_cleanup() { 173python_mod_cleanup() {
134 local SEARCH_PATH 174 local SEARCH_PATH myroot
135 175
176 # strip trailing slash
177 myroot="${ROOT%/}"
178
179 if [ $# -gt 0 ]; then
136 for path in $@; do 180 for path in $@; do
137 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${dir}" 181 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
138 done 182 done
139 183 else
140 for path in ${ROOT}usr/lib/python*/site-packages; do 184 for path in ${myroot}/usr/lib*/python*/site-packages; do
141 SEARCH_PATH="${SEARCH_PATH} ${path}" 185 SEARCH_PATH="${SEARCH_PATH} ${path}"
142 done 186 done
143 187 fi
188
144 for path in ${SEARCH_PATH}; do 189 for path in ${SEARCH_PATH}; do
145 einfo "Searching ${path} .." 190 einfo "Cleaning orphaned Python bytecode from ${path} .."
146 for obj in $(find ${path} -name *.pyc); do 191 for obj in $(find ${path} -name *.pyc); do
147 src_py="$(echo $obj | sed 's:c$::')" 192 src_py="${obj%c}"
148 if [ ! -f "${src_py}" ]; then 193 if [ ! -f "${src_py}" ]; then
149 einfo "Purging ${src_py}[co]" 194 einfo "Purging ${src_py}[co]"
150 rm -f ${src_py}[co] 195 rm -f ${src_py}[co]
151 fi 196 fi
152 done 197 done
198 # attempt to remove directories that maybe empty
199 for dir in $(find ${path} -type d | sort -r); do
200 rmdir ${dir} 2>/dev/null
201 done
153 done 202 done
154} 203}
155
156

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