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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 1.1 2003/10/08 14:07:38 liquidx Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.1.1.1 2005/11/30 09:59:24 chriswhite 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" 23
24__python_eclass_test() {
25 __python_version_extract 2.3
26 echo -n "2.3 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
27 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
28 __python_version_extract 2.3.4
29 echo -n "2.3.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
30 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
31 __python_version_extract 2.3.5
32 echo -n "2.3.5 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
33 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
34 __python_version_extract 2.4
35 echo -n "2.4 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
36 echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
37}
38
39#
40# name: python_disable/enable_pyc
41# desc: tells python not to automatically recompile modules to .pyc/.pyo
42# even if the timestamps/version stamps don't match. this is
43# done to protect sandbox.
44#
45# note: supported by >=dev-lang/python-2.2.3-r3 only.
46#
47python_disable_pyc() {
48 export PYTHON_DONTCOMPILE=1
49}
50
51python_enable_pyc() {
52 unset PYTHON_DONTCOMPILE
53}
54
55python_disable_pyc
24 56
25# 57#
26# name: python_version 58# name: python_version
27# desc: run without arguments and it will export the version of python 59# desc: run without arguments and it will export the version of python
28# currently in use as $PYVER 60# currently in use as $PYVER
29# 61#
62
63__python_version_extract() {
64 verstr=$1
65 export PYVER_MAJOR=${verstr:0:1}
66 export PYVER_MINOR=${verstr:2:1}
67 export PYVER_MICRO=${verstr:4}
68 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
69}
70
30python_version() { 71python_version() {
31 local tmpstr 72 local tmpstr
32 python=${python:-/usr/bin/python} 73 python=${python:-/usr/bin/python}
33 tmpstr="$(${python} -V 2>&1 )" 74 tmpstr="$(${python} -V 2>&1 )"
34 export PYVER_ALL="${tmpstr#Python }" 75 export PYVER_ALL="${tmpstr#Python }"
35 76 __python_version_extract $PYVER_ALL
36 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1)
37 export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2)
38 export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-)
39 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
40} 77}
41 78
42# 79#
43# name: python_makesym 80# name: python_makesym
44# desc: run without arguments, it will create the /usr/bin/python symlinks 81# desc: run without arguments, it will create the /usr/bin/python symlinks
45# to the latest installed version 82# to the latest installed version
46# 83#
47python_makesym() { 84python_makesym() {
48 alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]" 85 alternatives_auto_makesym "/usr/bin/python" "python[0-9].[0-9]"
49 alternatives_auto_makesym "/usr/bin/python2" "/usr/bin/python[0-9].[0-9]" 86 alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
50} 87}
51 88
52# 89#
53# name: python_tkinter_exists 90# name: python_tkinter_exists
54# desc: run without arguments, it will return TRUE(0) if python is compiled 91# desc: run without arguments, checks if python was compiled with Tkinter
55# with tkinter or FALSE(1) if python is compiled without tkinter. 92# support. If not, prints an error message and dies.
56# 93#
57python_tkinter_exists() { 94python_tkinter_exists() {
58 if ! python -c "import Tkinter" >/dev/null 2>&1; then 95 if ! python -c "import Tkinter" >/dev/null 2>&1; then
59 eerror "You need to recompile python with Tkinter support." 96 eerror "You need to recompile python with Tkinter support."
60 eerror "That means: USE='tcltk' emerge python" 97 eerror "That means: USE='tcltk' emerge python"
63 fi 100 fi
64} 101}
65 102
66# 103#
67# name: python_mod_exists 104# name: python_mod_exists
68# desc: run with the module name as an argument. it will check if a 105# desc: run with the module name as an argument. it will check if a
69# python module is installed and loadable. it will return 106# python module is installed and loadable. it will return
70# TRUE(0) if the module exists, and FALSE(1) if the module does 107# TRUE(0) if the module exists, and FALSE(1) if the module does
71# not exist. 108# not exist.
72# exam: 109# exam:
73# if python_mod_exists gtk; then 110# if python_mod_exists gtk; then
74# echo "gtk support enabled 111# echo "gtk support enabled
75# fi 112# fi
76# 113#
77python_mod_exists() { 114python_mod_exists() {
115 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
78 if ! python -c "import $1" >/dev/null 2>&1; then 116 if ! python -c "import $1" >/dev/null 2>&1; then
79 return 1 117 return 1
80 fi 118 fi
81 return 0 119 return 0
82} 120}
87# should only be run in pkg_postinst() 125# should only be run in pkg_postinst()
88# exam: 126# exam:
89# python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py 127# python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
90# 128#
91python_mod_compile() { 129python_mod_compile() {
130 # allow compiling for older python versions
131 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
132 PYVER=${PYTHON_OVERRIDE_PYVER}
133 else
134 python_version
135 fi
136
92 if [ -f "$1" ]; then 137 if [ -f "$1" ]; then
93 python -c "import py_compile; py_compile.compile('${1}')" || \ 138 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
94 ewarn "Failed to compile ${1}" 139 ewarn "Failed to compile ${1}"
95 python -O -c "import py_compile; py_compile.compile('${1}')" || \ 140 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
96 ewarn "Failed to compile ${1}" 141 ewarn "Failed to compile ${1}"
97 else 142 else
98 ewarn "Unable to find ${1}" 143 ewarn "Unable to find ${1}"
99 fi 144 fi
100} 145}
101 146
102# 147#
103# name: python_mod_optimize 148# name: python_mod_optimize
104# desc: if no arguments supplied, it will recompile all modules under 149# desc: if no arguments supplied, it will recompile all modules under
105# sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..) 150# sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..)
106# no recursively 151# no recursively
107# 152#
108# if supplied with arguments, it will recompile all modules recursively 153# if supplied with arguments, it will recompile all modules recursively
109# in the supplied directory 154# in the supplied directory
110# exam: 155# exam:
111# python_mod_optimize ${ROOT}usr/share/codegen 156# python_mod_optimize ${ROOT}usr/share/codegen
112# 157#
113python_mod_optimize() { 158python_mod_optimize() {
114 einfo "Byte Compiling Python modules .." 159 local myroot
160 # strip trailing slash
161 myroot="${ROOT%/}"
162
163 # allow compiling for older python versions
164 if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
165 PYVER=${PYTHON_OVERRIDE_PYVER}
166 else
115 python_version 167 python_version
116 echo ${PYVER} 168 fi
117 python ${ROOT}usr/lib/python${PYVER}/compileall.py $@ 169
170 # set opts
171 if [ "${PYVER}" = "2.2" ]; then
172 compileopts=""
173 else
174 compileopts="-q"
175 fi
176
177 ebegin "Byte compiling python modules for python-${PYVER} .."
178 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
179 python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
180 eend $?
118} 181}
119 182
120# 183#
121# name: python_mod_cleanup 184# name: python_mod_cleanup
122# desc: run with optional arguments, where arguments are directories of 185# desc: run with optional arguments, where arguments are directories of
123# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9] 186# python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
124# 187#
125# it will recursively scan all compiled python modules in the directories 188# it will recursively scan all compiled python modules in the directories
126# and determine if they are orphaned (eg. their corresponding .py is missing.) 189# and determine if they are orphaned (eg. their corresponding .py is missing.)
127# if they are, then it will remove their corresponding .pyc and .pyo 190# if they are, then it will remove their corresponding .pyc and .pyo
128# 191#
129python_mod_cleanup() { 192python_mod_cleanup() {
130 local SEARCH_PATH 193 local SEARCH_PATH myroot
131 194
195 # strip trailing slash
196 myroot="${ROOT%/}"
197
198 if [ $# -gt 0 ]; then
132 for path in $@; do 199 for path in $@; do
133 SEARCH_PATH="${SEARCH_PATH} ${ROOT}${dir}" 200 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
134 done 201 done
135 202 else
136 for path in ${ROOT}usr/lib/python*/site-packages; do 203 for path in ${myroot}/usr/lib*/python*/site-packages; do
137 SEARCH_PATH="${SEARCH_PATH} ${path}" 204 SEARCH_PATH="${SEARCH_PATH} ${path}"
138 done 205 done
139 206 fi
207
140 for path in ${SEARCH_PATH}; do 208 for path in ${SEARCH_PATH}; do
141 einfo "Searching ${path} .." 209 einfo "Cleaning orphaned Python bytecode from ${path} .."
142 for obj in $(find ${path} -name *.pyc); do 210 for obj in $(find ${path} -name *.pyc); do
143 src_py="$(echo $obj | sed 's:c$::')" 211 src_py="${obj%c}"
144 if [ ! -f "${src_py}" ]; then 212 if [ ! -f "${src_py}" ]; then
145 einfo "Purging ${src_py}[co]" 213 einfo "Purging ${src_py}[co]"
146 rm -f ${src_py}[co] 214 rm -f ${src_py}[co]
147 fi 215 fi
148 done 216 done
217 # attempt to remove directories that maybe empty
218 for dir in $(find ${path} -type d | sort -r); do
219 rmdir ${dir} 2>/dev/null
220 done
149 done 221 done
150} 222}
151
152

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