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Revision 1.24 - (hide annotations) (download)
Sat Jun 10 16:19:54 2006 UTC (8 years, 3 months ago) by swegener
Branch: MAIN
Changes since 1.23: +3 -3 lines
Apply whitespace checks from repoman to eclasses.

1 vapier 1.14 # Copyright 1999-2004 Gentoo Foundation
2 liquidx 1.1 # Distributed under the terms of the GNU General Public License v2
3 swegener 1.24 # $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.23 2006/06/06 22:33:09 carlo Exp $
4 liquidx 1.1 #
5     # Author: Alastair Tse <liquidx@gentoo.org>
6     #
7     # A Utility Eclass that should be inherited by anything that deals with
8     # Python or Python modules.
9     #
10     # - Features:
11     # python_version() - sets PYVER/PYVER_MAJOR/PYVER_MINOR
12     # python_tkinter_exists() - Checks for tkinter support in python
13     # python_mod_exists() - Checks if a python module exists
14     # python_mod_compile() - Compiles a .py file to a .pyc/.pyo
15     # python_mod_optimize() - Generates .pyc/.pyo precompiled scripts
16 eradicator 1.15 # python_mod_cleanup() - Goes through /usr/lib*/python* to remove
17 liquidx 1.1 # orphaned *.pyc *.pyo
18     # python_makesym() - Makes /usr/bin/python symlinks
19    
20 pythonhead 1.7 inherit alternatives
21 liquidx 1.1
22 liquidx 1.2
23 carlo 1.23 if [[ -n "${NEED_PYTHON}" ]] ; then
24 swegener 1.24 DEPEND=">=dev-lang/python-${NEED_PYTHON}"
25     RDEPEND="${DEPEND}"
26 carlo 1.22 fi
27 liquidx 1.18
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 liquidx 1.5 #
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     #
51 liquidx 1.2 python_disable_pyc() {
52 liquidx 1.3 export PYTHON_DONTCOMPILE=1
53 liquidx 1.2 }
54 liquidx 1.1
55 liquidx 1.4 python_enable_pyc() {
56     unset PYTHON_DONTCOMPILE
57     }
58    
59     python_disable_pyc
60    
61 liquidx 1.1 #
62     # name: python_version
63     # desc: run without arguments and it will export the version of python
64     # currently in use as $PYVER
65     #
66 liquidx 1.18
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 swegener 1.21 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
73 liquidx 1.18 }
74    
75 liquidx 1.1 python_version() {
76     local tmpstr
77     python=${python:-/usr/bin/python}
78     tmpstr="$(${python} -V 2>&1 )"
79     export PYVER_ALL="${tmpstr#Python }"
80 liquidx 1.18 __python_version_extract $PYVER_ALL
81 liquidx 1.1 }
82    
83     #
84     # name: python_makesym
85     # desc: run without arguments, it will create the /usr/bin/python symlinks
86     # to the latest installed version
87     #
88     python_makesym() {
89 liquidx 1.10 alternatives_auto_makesym "/usr/bin/python" "python[0-9].[0-9]"
90     alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
91 liquidx 1.1 }
92    
93     #
94     # name: python_tkinter_exists
95 liquidx 1.16 # desc: run without arguments, checks if python was compiled with Tkinter
96     # support. If not, prints an error message and dies.
97 liquidx 1.1 #
98     python_tkinter_exists() {
99     if ! python -c "import Tkinter" >/dev/null 2>&1; then
100     eerror "You need to recompile python with Tkinter support."
101     eerror "That means: USE='tcltk' emerge python"
102     echo
103     die "missing tkinter support with installed python"
104     fi
105     }
106    
107     #
108     # name: python_mod_exists
109 pythonhead 1.7 # desc: run with the module name as an argument. it will check if a
110 liquidx 1.1 # python module is installed and loadable. it will return
111     # TRUE(0) if the module exists, and FALSE(1) if the module does
112     # not exist.
113 pythonhead 1.7 # exam:
114 liquidx 1.1 # if python_mod_exists gtk; then
115     # echo "gtk support enabled
116     # fi
117     #
118     python_mod_exists() {
119 liquidx 1.16 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
120 pythonhead 1.7 if ! python -c "import $1" >/dev/null 2>&1; then
121 liquidx 1.1 return 1
122     fi
123     return 0
124     }
125    
126     #
127     # name: python_mod_compile
128     # desc: given a filename, it will pre-compile the module's .pyc and .pyo.
129     # should only be run in pkg_postinst()
130     # exam:
131     # python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
132     #
133     python_mod_compile() {
134 liquidx 1.5 # allow compiling for older python versions
135     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
136     PYVER=${PYTHON_OVERRIDE_PYVER}
137 pythonhead 1.7 else
138 liquidx 1.5 python_version
139     fi
140 pythonhead 1.7
141 liquidx 1.1 if [ -f "$1" ]; then
142 liquidx 1.5 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
143 liquidx 1.1 ewarn "Failed to compile ${1}"
144 liquidx 1.5 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
145 pythonhead 1.7 ewarn "Failed to compile ${1}"
146 liquidx 1.1 else
147     ewarn "Unable to find ${1}"
148 pythonhead 1.7 fi
149 liquidx 1.1 }
150    
151     #
152     # name: python_mod_optimize
153     # desc: if no arguments supplied, it will recompile all modules under
154     # sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..)
155     # no recursively
156 pythonhead 1.7 #
157 liquidx 1.1 # if supplied with arguments, it will recompile all modules recursively
158     # in the supplied directory
159     # exam:
160     # python_mod_optimize ${ROOT}usr/share/codegen
161     #
162     python_mod_optimize() {
163 liquidx 1.13 local myroot
164     # strip trailing slash
165 liquidx 1.16 myroot="${ROOT%/}"
166 liquidx 1.13
167 liquidx 1.5 # allow compiling for older python versions
168     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
169     PYVER=${PYTHON_OVERRIDE_PYVER}
170 pythonhead 1.7 else
171 liquidx 1.5 python_version
172     fi
173 pythonhead 1.7
174 liquidx 1.5 # set opts
175     if [ "${PYVER}" = "2.2" ]; then
176     compileopts=""
177     else
178     compileopts="-q"
179     fi
180 pythonhead 1.7
181 liquidx 1.10 ebegin "Byte compiling python modules for python-${PYVER} .."
182 liquidx 1.13 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
183     python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
184 liquidx 1.5 eend $?
185 liquidx 1.1 }
186    
187     #
188     # name: python_mod_cleanup
189     # desc: run with optional arguments, where arguments are directories of
190     # python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
191 pythonhead 1.7 #
192 liquidx 1.1 # it will recursively scan all compiled python modules in the directories
193     # and determine if they are orphaned (eg. their corresponding .py is missing.)
194     # if they are, then it will remove their corresponding .pyc and .pyo
195     #
196     python_mod_cleanup() {
197 liquidx 1.13 local SEARCH_PATH myroot
198 liquidx 1.16
199 liquidx 1.13 # strip trailing slash
200 liquidx 1.16 myroot="${ROOT%/}"
201 liquidx 1.1
202 liquidx 1.5 if [ $# -gt 0 ]; then
203     for path in $@; do
204 liquidx 1.13 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
205 pythonhead 1.7 done
206 liquidx 1.5 else
207 eradicator 1.15 for path in ${myroot}/usr/lib*/python*/site-packages; do
208 liquidx 1.5 SEARCH_PATH="${SEARCH_PATH} ${path}"
209     done
210     fi
211 pythonhead 1.7
212 liquidx 1.1 for path in ${SEARCH_PATH}; do
213 liquidx 1.11 einfo "Cleaning orphaned Python bytecode from ${path} .."
214 pythonhead 1.7 for obj in $(find ${path} -name *.pyc); do
215 liquidx 1.16 src_py="${obj%c}"
216 liquidx 1.1 if [ ! -f "${src_py}" ]; then
217     einfo "Purging ${src_py}[co]"
218     rm -f ${src_py}[co]
219     fi
220 liquidx 1.12 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 liquidx 1.1 done
225 pythonhead 1.7 done
226 liquidx 1.1 }

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