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Revision 1.17 - (hide annotations) (download)
Sat Apr 23 03:40:10 2005 UTC (9 years, 8 months ago) by pythonhead
Branch: MAIN
Changes since 1.16: +5 -6 lines
Fixed problem with bug# 90092

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 pythonhead 1.17 # $Header: /var/cvsroot/gentoo-x86/eclass/python.eclass,v 1.16 2005/04/20 15:43:37 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     ECLASS="python"
23     INHERITED="$INHERITED $ECLASS"
24 liquidx 1.2
25 liquidx 1.5 #
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     #
33 liquidx 1.2 python_disable_pyc() {
34 liquidx 1.3 export PYTHON_DONTCOMPILE=1
35 liquidx 1.2 }
36 liquidx 1.1
37 liquidx 1.4 python_enable_pyc() {
38     unset PYTHON_DONTCOMPILE
39     }
40    
41     python_disable_pyc
42    
43 liquidx 1.1 #
44     # name: python_version
45     # desc: run without arguments and it will export the version of python
46     # currently in use as $PYVER
47     #
48     python_version() {
49     local tmpstr
50     python=${python:-/usr/bin/python}
51     tmpstr="$(${python} -V 2>&1 )"
52     export PYVER_ALL="${tmpstr#Python }"
53 pythonhead 1.17 export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1)
54     export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2)
55     export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-)
56     export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
57 liquidx 1.1 }
58    
59     #
60     # name: python_makesym
61     # desc: run without arguments, it will create the /usr/bin/python symlinks
62     # to the latest installed version
63     #
64     python_makesym() {
65 liquidx 1.10 alternatives_auto_makesym "/usr/bin/python" "python[0-9].[0-9]"
66     alternatives_auto_makesym "/usr/bin/python2" "python2.[0-9]"
67 liquidx 1.1 }
68    
69     #
70     # name: python_tkinter_exists
71 liquidx 1.16 # desc: run without arguments, checks if python was compiled with Tkinter
72     # support. If not, prints an error message and dies.
73 liquidx 1.1 #
74     python_tkinter_exists() {
75     if ! python -c "import Tkinter" >/dev/null 2>&1; then
76     eerror "You need to recompile python with Tkinter support."
77     eerror "That means: USE='tcltk' emerge python"
78     echo
79     die "missing tkinter support with installed python"
80     fi
81     }
82    
83     #
84     # name: python_mod_exists
85 pythonhead 1.7 # desc: run with the module name as an argument. it will check if a
86 liquidx 1.1 # python module is installed and loadable. it will return
87     # TRUE(0) if the module exists, and FALSE(1) if the module does
88     # not exist.
89 pythonhead 1.7 # exam:
90 liquidx 1.1 # if python_mod_exists gtk; then
91     # echo "gtk support enabled
92     # fi
93     #
94     python_mod_exists() {
95 liquidx 1.16 [ -z "$1" ] && die "${FUNCTION} requires an argument!"
96 pythonhead 1.7 if ! python -c "import $1" >/dev/null 2>&1; then
97 liquidx 1.1 return 1
98     fi
99     return 0
100     }
101    
102     #
103     # name: python_mod_compile
104     # desc: given a filename, it will pre-compile the module's .pyc and .pyo.
105     # should only be run in pkg_postinst()
106     # exam:
107     # python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
108     #
109     python_mod_compile() {
110 liquidx 1.5 # allow compiling for older python versions
111     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
112     PYVER=${PYTHON_OVERRIDE_PYVER}
113 pythonhead 1.7 else
114 liquidx 1.5 python_version
115     fi
116 pythonhead 1.7
117 liquidx 1.1 if [ -f "$1" ]; then
118 liquidx 1.5 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
119 liquidx 1.1 ewarn "Failed to compile ${1}"
120 liquidx 1.5 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
121 pythonhead 1.7 ewarn "Failed to compile ${1}"
122 liquidx 1.1 else
123     ewarn "Unable to find ${1}"
124 pythonhead 1.7 fi
125 liquidx 1.1 }
126    
127     #
128     # name: python_mod_optimize
129     # desc: if no arguments supplied, it will recompile all modules under
130     # sys.path (eg. /usr/lib/python2.3, /usr/lib/python2.3/site-packages/ ..)
131     # no recursively
132 pythonhead 1.7 #
133 liquidx 1.1 # if supplied with arguments, it will recompile all modules recursively
134     # in the supplied directory
135     # exam:
136     # python_mod_optimize ${ROOT}usr/share/codegen
137     #
138     python_mod_optimize() {
139 liquidx 1.13 local myroot
140     # strip trailing slash
141 liquidx 1.16 myroot="${ROOT%/}"
142 liquidx 1.13
143 liquidx 1.5 # allow compiling for older python versions
144     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
145     PYVER=${PYTHON_OVERRIDE_PYVER}
146 pythonhead 1.7 else
147 liquidx 1.5 python_version
148     fi
149 pythonhead 1.7
150 liquidx 1.5 # set opts
151     if [ "${PYVER}" = "2.2" ]; then
152     compileopts=""
153     else
154     compileopts="-q"
155     fi
156 pythonhead 1.7
157 liquidx 1.10 ebegin "Byte compiling python modules for python-${PYVER} .."
158 liquidx 1.13 python${PYVER} ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
159     python${PYVER} -O ${myroot}/usr/lib/python${PYVER}/compileall.py ${compileopts} $@
160 liquidx 1.5 eend $?
161 liquidx 1.1 }
162    
163     #
164     # name: python_mod_cleanup
165     # desc: run with optional arguments, where arguments are directories of
166     # python modules. if none given, it will look in /usr/lib/python[0-9].[0-9]
167 pythonhead 1.7 #
168 liquidx 1.1 # it will recursively scan all compiled python modules in the directories
169     # and determine if they are orphaned (eg. their corresponding .py is missing.)
170     # if they are, then it will remove their corresponding .pyc and .pyo
171     #
172     python_mod_cleanup() {
173 liquidx 1.13 local SEARCH_PATH myroot
174 liquidx 1.16
175 liquidx 1.13 # strip trailing slash
176 liquidx 1.16 myroot="${ROOT%/}"
177 liquidx 1.1
178 liquidx 1.5 if [ $# -gt 0 ]; then
179     for path in $@; do
180 liquidx 1.13 SEARCH_PATH="${SEARCH_PATH} ${myroot}/${path#/}"
181 pythonhead 1.7 done
182 liquidx 1.5 else
183 eradicator 1.15 for path in ${myroot}/usr/lib*/python*/site-packages; do
184 liquidx 1.5 SEARCH_PATH="${SEARCH_PATH} ${path}"
185     done
186     fi
187 pythonhead 1.7
188 liquidx 1.1 for path in ${SEARCH_PATH}; do
189 liquidx 1.11 einfo "Cleaning orphaned Python bytecode from ${path} .."
190 pythonhead 1.7 for obj in $(find ${path} -name *.pyc); do
191 liquidx 1.16 src_py="${obj%c}"
192 liquidx 1.1 if [ ! -f "${src_py}" ]; then
193     einfo "Purging ${src_py}[co]"
194     rm -f ${src_py}[co]
195     fi
196 liquidx 1.12 done
197     # attempt to remove directories that maybe empty
198     for dir in $(find ${path} -type d | sort -r); do
199     rmdir ${dir} 2>/dev/null
200 liquidx 1.1 done
201 pythonhead 1.7 done
202 liquidx 1.1 }

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