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Revision 1.29 - (hide annotations) (download)
Sat Oct 14 20:27:21 2006 UTC (7 years, 6 months ago) by swegener
Branch: MAIN
Changes since 1.28: +2 -2 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 1.29 # $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.28 2006/08/16 16:24:20 liquidx 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 liquidx 1.28 __python_version_extract 2.5b3
42     echo -n "2.5b3 -> PYVER: $PYVER PYVER_MAJOR: $PYVER_MAJOR"
43     echo " PYVER_MINOR: $PYVER_MINOR PYVER_MICRO: $PYVER_MICRO"
44 liquidx 1.18 }
45    
46 liquidx 1.5 #
47     # name: python_disable/enable_pyc
48     # desc: tells python not to automatically recompile modules to .pyc/.pyo
49     # even if the timestamps/version stamps don't match. this is
50     # done to protect sandbox.
51     #
52     # note: supported by >=dev-lang/python-2.2.3-r3 only.
53     #
54 liquidx 1.2 python_disable_pyc() {
55 liquidx 1.3 export PYTHON_DONTCOMPILE=1
56 liquidx 1.2 }
57 liquidx 1.1
58 liquidx 1.4 python_enable_pyc() {
59     unset PYTHON_DONTCOMPILE
60     }
61    
62     python_disable_pyc
63    
64 liquidx 1.1 #
65     # name: python_version
66     # desc: run without arguments and it will export the version of python
67     # currently in use as $PYVER
68     #
69 liquidx 1.18
70     __python_version_extract() {
71     verstr=$1
72     export PYVER_MAJOR=${verstr:0:1}
73     export PYVER_MINOR=${verstr:2:1}
74 liquidx 1.28 if [ "${verstr:3}x" = ".x" ]; then
75 swegener 1.29 export PYVER_MICRO=${verstr:4}
76 liquidx 1.28 fi
77 swegener 1.21 export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
78 liquidx 1.18 }
79    
80 liquidx 1.1 python_version() {
81     local tmpstr
82     python=${python:-/usr/bin/python}
83     tmpstr="$(${python} -V 2>&1 )"
84     export PYVER_ALL="${tmpstr#Python }"
85 liquidx 1.18 __python_version_extract $PYVER_ALL
86 liquidx 1.1 }
87    
88     #
89     # name: python_makesym
90     # desc: run without arguments, it will create the /usr/bin/python symlinks
91     # to the latest installed version
92     #
93     python_makesym() {
94 liquidx 1.10 alternatives_auto_makesym "/usr/bin/python" "python[0-9].[0-9]"
95     alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
96 liquidx 1.1 }
97    
98     #
99     # name: python_tkinter_exists
100 liquidx 1.16 # desc: run without arguments, checks if python was compiled with Tkinter
101     # support. If not, prints an error message and dies.
102 liquidx 1.1 #
103     python_tkinter_exists() {
104     if ! python -c "import Tkinter" >/dev/null 2>&1; then
105     eerror "You need to recompile python with Tkinter support."
106 liquidx 1.27 eerror "Try adding: 'dev-lang/python X tk'"
107     eerror "in to /etc/portage/package.use"
108 liquidx 1.1 echo
109     die "missing tkinter support with installed python"
110     fi
111     }
112    
113     #
114     # name: python_mod_exists
115 pythonhead 1.7 # desc: run with the module name as an argument. it will check if a
116 liquidx 1.1 # python module is installed and loadable. it will return
117     # TRUE(0) if the module exists, and FALSE(1) if the module does
118     # not exist.
119 pythonhead 1.7 # exam:
120 liquidx 1.1 # if python_mod_exists gtk; then
121 liquidx 1.28 # echo "gtk support enabled"
122 liquidx 1.1 # fi
123     #
124     python_mod_exists() {
125 liquidx 1.16 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
126 pythonhead 1.7 if ! python -c "import $1" >/dev/null 2>&1; then
127 liquidx 1.1 return 1
128     fi
129     return 0
130     }
131    
132     #
133     # name: python_mod_compile
134     # desc: given a filename, it will pre-compile the module's .pyc and .pyo.
135     # should only be run in pkg_postinst()
136     # exam:
137     # python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
138     #
139     python_mod_compile() {
140 liquidx 1.5 # allow compiling for older python versions
141     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
142     PYVER=${PYTHON_OVERRIDE_PYVER}
143 pythonhead 1.7 else
144 liquidx 1.5 python_version
145     fi
146 pythonhead 1.7
147 liquidx 1.1 if [ -f "$1" ]; then
148 liquidx 1.5 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
149 liquidx 1.1 ewarn "Failed to compile ${1}"
150 liquidx 1.5 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
151 pythonhead 1.7 ewarn "Failed to compile ${1}"
152 liquidx 1.1 else
153     ewarn "Unable to find ${1}"
154 pythonhead 1.7 fi
155 liquidx 1.1 }
156    
157     #
158     # name: python_mod_optimize
159     # desc: if no arguments supplied, it will recompile all modules under
160     # sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..)
161     # no recursively
162 pythonhead 1.7 #
163 liquidx 1.1 # if supplied with arguments, it will recompile all modules recursively
164     # in the supplied directory
165     # exam:
166     # python_mod_optimize ${ROOT}usr/share/codegen
167     #
168     python_mod_optimize() {
169 liquidx 1.13 local myroot
170     # strip trailing slash
171 liquidx 1.16 myroot="${ROOT%/}"
172 liquidx 1.13
173 liquidx 1.5 # allow compiling for older python versions
174     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
175     PYVER=${PYTHON_OVERRIDE_PYVER}
176 pythonhead 1.7 else
177 liquidx 1.5 python_version
178     fi
179 pythonhead 1.7
180 liquidx 1.5 # set opts
181     if [ "${PYVER}" = "2.2" ]; then
182     compileopts=""
183     else
184     compileopts="-q"
185     fi
186 pythonhead 1.7
187 liquidx 1.10 ebegin "Byte compiling python modules for python-${PYVER} .."
188 liquidx 1.13 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
189     python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
190 liquidx 1.5 eend $?
191 liquidx 1.1 }
192    
193     #
194     # name: python_mod_cleanup
195     # desc: run with optional arguments, where arguments are directories of
196     # python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
197 pythonhead 1.7 #
198 liquidx 1.1 # it will recursively scan all compiled python modules in the directories
199     # and determine if they are orphaned (eg. their corresponding .py is missing.)
200     # if they are, then it will remove their corresponding .pyc and .pyo
201     #
202     python_mod_cleanup() {
203 liquidx 1.13 local SEARCH_PATH myroot
204 liquidx 1.16
205 liquidx 1.13 # strip trailing slash
206 liquidx 1.16 myroot="${ROOT%/}"
207 liquidx 1.1
208 liquidx 1.5 if [ $# -gt 0 ]; then
209     for path in $@; do
210 liquidx 1.13 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
211 pythonhead 1.7 done
212 liquidx 1.5 else
213 eradicator 1.15 for path in ${myroot}/usr/lib*/python*/site-packages; do
214 liquidx 1.5 SEARCH_PATH="${SEARCH_PATH} ${path}"
215     done
216     fi
217 pythonhead 1.7
218 liquidx 1.1 for path in ${SEARCH_PATH}; do
219 liquidx 1.11 einfo "Cleaning orphaned Python bytecode from ${path} .."
220 pythonhead 1.7 for obj in $(find ${path} -name *.pyc); do
221 liquidx 1.16 src_py="${obj%c}"
222 liquidx 1.1 if [ ! -f "${src_py}" ]; then
223     einfo "Purging ${src_py}[co]"
224     rm -f ${src_py}[co]
225     fi
226 liquidx 1.12 done
227     # attempt to remove directories that maybe empty
228     for dir in $(find ${path} -type d | sort -r); do
229     rmdir ${dir} 2>/dev/null
230 liquidx 1.1 done
231 pythonhead 1.7 done
232 liquidx 1.1 }

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