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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 1.6 2003/10/23 23:15:57 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 virtualx 20inherit alternatives
21 21
22ECLASS="python" 22ECLASS="python"
23INHERITED="$INHERITED $ECLASS" 23INHERITED="$INHERITED $ECLASS"
24 24
25# 25#
49 local tmpstr 49 local tmpstr
50 python=${python:-/usr/bin/python} 50 python=${python:-/usr/bin/python}
51 tmpstr="$(${python} -V 2>&1 )" 51 tmpstr="$(${python} -V 2>&1 )"
52 export PYVER_ALL="${tmpstr#Python }" 52 export PYVER_ALL="${tmpstr#Python }"
53 53
54 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1) 54 export PYVER="${PYVER_ALL%.*}"
55 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2) 55 export PYVER_MAJOR="${PYVER%.*}"
56 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-) 56 export PYVER_MINOR="${PYVER##*.}"
57 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}" 57 export PYVER_MICRO="${PYVER_ALL##*.}"
58} 58}
59 59
60# 60#
61# name: python_makesym 61# name: python_makesym
62# 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
63# to the latest installed version 63# to the latest installed version
64# 64#
65python_makesym() { 65python_makesym() {
66 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]"
67 alternatives_auto_makesym "/usr/bin/python2" "/usr/bin/python[0-9].[0-9]" 67 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
68} 68}
69 69
70# 70#
71# name: python_tkinter_exists 71# name: python_tkinter_exists
72# 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
73# with tkinter or FALSE(1) if python is compiled without tkinter. 73# support. If not, prints an error message and dies.
74# 74#
75python_tkinter_exists() { 75python_tkinter_exists() {
76 if ! python -c "import Tkinter" >/dev/null 2>&1; then 76 if ! python -c "import Tkinter" >/dev/null 2>&1; then
77 eerror "You need to recompile python with Tkinter support." 77 eerror "You need to recompile python with Tkinter support."
78 eerror "That means: USE='tcltk' emerge python" 78 eerror "That means: USE='tcltk' emerge python"
81 fi 81 fi
82} 82}
83 83
84# 84#
85# name: python_mod_exists 85# name: python_mod_exists
86# 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
87# python module is installed and loadable. it will return 87# python module is installed and loadable. it will return
88# 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
89# not exist. 89# not exist.
90#
91# note: we use virtualmake from virtualx.eclass to get around
92# when people build without X available. some packages like
93# pygtk need X avaiable when being imported.
94#
95# exam: 90# exam:
96# if python_mod_exists gtk; then 91# if python_mod_exists gtk; then
97# echo "gtk support enabled 92# echo "gtk support enabled
98# fi 93# fi
99# 94#
100python_mod_exists() { 95python_mod_exists() {
101 export maketype="python" 96 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
102 if ! virtualmake -c "import $1" >/dev/null 2>&1; then 97 if ! python -c "import $1" >/dev/null 2>&1; then
103 return 1 98 return 1
104 fi 99 fi
105 return 0 100 return 0
106} 101}
107 102
114# 109#
115python_mod_compile() { 110python_mod_compile() {
116 # allow compiling for older python versions 111 # allow compiling for older python versions
117 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 112 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
118 PYVER=${PYTHON_OVERRIDE_PYVER} 113 PYVER=${PYTHON_OVERRIDE_PYVER}
119 else 114 else
120 python_version 115 python_version
121 fi 116 fi
122 117
123 if [ -f "$1" ]; then 118 if [ -f "$1" ]; then
124 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \ 119 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
125 ewarn "Failed to compile ${1}" 120 ewarn "Failed to compile ${1}"
126 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \ 121 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
127 ewarn "Failed to compile ${1}" 122 ewarn "Failed to compile ${1}"
128 else 123 else
129 ewarn "Unable to find ${1}" 124 ewarn "Unable to find ${1}"
130 fi 125 fi
131} 126}
132 127
133# 128#
134# name: python_mod_optimize 129# name: python_mod_optimize
135# desc: if no arguments supplied, it will recompile all modules under 130# desc: if no arguments supplied, it will recompile all modules under
136# 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/ ..)
137# no recursively 132# no recursively
138# 133#
139# if supplied with arguments, it will recompile all modules recursively 134# if supplied with arguments, it will recompile all modules recursively
140# in the supplied directory 135# in the supplied directory
141# exam: 136# exam:
142# python_mod_optimize ${ROOT}usr/share/codegen 137# python_mod_optimize ${ROOT}usr/share/codegen
143# 138#
144python_mod_optimize() { 139python_mod_optimize() {
140 local myroot
141 # strip trailing slash
142 myroot="${ROOT%/}"
143
145 # allow compiling for older python versions 144 # allow compiling for older python versions
146 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then 145 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
147 PYVER=${PYTHON_OVERRIDE_PYVER} 146 PYVER=${PYTHON_OVERRIDE_PYVER}
148 else 147 else
149 python_version 148 python_version
150 fi 149 fi
151 150
152 # set opts 151 # set opts
153 if [ "${PYVER}" = "2.2" ]; then 152 if [ "${PYVER}" = "2.2" ]; then
154 compileopts="" 153 compileopts=""
155 else 154 else
156 compileopts="-q" 155 compileopts="-q"
157 fi 156 fi
158 157
159 ebegin "Byte Compiling Python modules for ${PYVER} .." 158 ebegin "Byte compiling python modules for python-${PYVER} .."
160 python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 159 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
161 python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@ 160 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
162 eend $? 161 eend $?
163} 162}
164 163
165# 164#
166# name: python_mod_cleanup 165# name: python_mod_cleanup
167# desc: run with optional arguments, where arguments are directories of 166# desc: run with optional arguments, where arguments are directories of
168# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9] 167# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
169# 168#
170# it will recursively scan all compiled python modules in the directories 169# it will recursively scan all compiled python modules in the directories
171# and determine if they are orphaned (eg. their corresponding .py is missing.) 170# and determine if they are orphaned (eg. their corresponding .py is missing.)
172# if they are, then it will remove their corresponding .pyc and .pyo 171# if they are, then it will remove their corresponding .pyc and .pyo
173# 172#
174python_mod_cleanup() { 173python_mod_cleanup() {
175 local SEARCH_PATH 174 local SEARCH_PATH myroot
175
176 # strip trailing slash
177 myroot="${ROOT%/}"
176 178
177 if [ $# -gt 0 ]; then 179 if [ $# -gt 0 ]; then
178 for path in $@; do 180 for path in $@; do
179 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}" 181 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
180 done 182 done
181 else 183 else
182 for path in ${ROOT}usr/lib/python*/site-packages; do 184 for path in ${myroot}/usr/lib*/python*/site-packages; do
183 SEARCH_PATH="${SEARCH_PATH} ${path}" 185 SEARCH_PATH="${SEARCH_PATH} ${path}"
184 done 186 done
185 fi 187 fi
186 188
187 for path in ${SEARCH_PATH}; do 189 for path in ${SEARCH_PATH}; do
188 einfo "Searching ${path} .." 190 einfo "Cleaning orphaned Python bytecode from ${path} .."
189 for obj in $(find ${path} -name *.pyc | sort -r); do 191 for obj in $(find ${path} -name *.pyc); do
190 src_py="$(echo $obj | sed 's:c$::')" 192 src_py="${obj%c}"
191 if [ ! -f "${src_py}" ]; then 193 if [ ! -f "${src_py}" ]; then
192 einfo "Purging ${src_py}[co]" 194 einfo "Purging ${src_py}[co]"
193 rm -f ${src_py}[co] 195 rm -f ${src_py}[co]
194 # clean up directory if it is empty
195 current_dir="`dirname ${obj}`"
196 if [ `ls -1 --color=none $current_dir | wc -l 2> /dev/null` -lt 1 ]; then
197 rmdir -f ${current_dir}
198 fi
199 fi 196 fi
200 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
201 done 202 done
202} 203}
203
204

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