/[gentoo-x86]/eclass/python.eclass
Gentoo

Contents of /eclass/python.eclass

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.6 - (hide annotations) (download)
Thu Oct 23 23:15:57 2003 UTC (10 years, 9 months ago) by liquidx
Branch: MAIN
Changes since 1.5: +15 -4 lines
filter some stderr output, remove empty directories in python_mod_cleanup and make python_mod_exists use virtualx

1 liquidx 1.1 # Copyright 1999-2003 Gentoo Technologies, Inc.
2     # Distributed under the terms of the GNU General Public License v2
3 liquidx 1.6 # $Header: /home/cvsroot/gentoo-x86/eclass/python.eclass,v 1.5 2003/10/17 07:14:26 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     # python_mod_cleanup() - Goes through /usr/lib/python* to remove
17     # orphaned *.pyc *.pyo
18     # python_makesym() - Makes /usr/bin/python symlinks
19    
20 liquidx 1.6 inherit alternatives virtualx
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="${tmpstr#Python }"
53    
54     export PYVER_MAJOR=$(echo ${PYVER_ALL} | cut -d. -f1)
55     export PYVER_MINOR=$(echo ${PYVER_ALL} | cut -d. -f2)
56     export PYVER_MICRO=$(echo ${PYVER_ALL} | cut -d. -f3-)
57     export PYVER="${PYVER_MAJOR}.${PYVER_MINOR}"
58     }
59    
60     #
61     # name: python_makesym
62     # desc: run without arguments, it will create the /usr/bin/python symlinks
63     # to the latest installed version
64     #
65     python_makesym() {
66     alternatives_auto_makesym "/usr/bin/python" "/usr/bin/python[0-9].[0-9]"
67     alternatives_auto_makesym "/usr/bin/python2" "/usr/bin/python[0-9].[0-9]"
68     }
69    
70     #
71     # name: python_tkinter_exists
72     # desc: run without arguments, it will return TRUE(0) if python is compiled
73     # with tkinter or FALSE(1) if python is compiled without tkinter.
74     #
75     python_tkinter_exists() {
76     if ! python -c "import Tkinter" >/dev/null 2>&1; then
77     eerror "You need to recompile python with Tkinter support."
78     eerror "That means: USE='tcltk' emerge python"
79     echo
80     die "missing tkinter support with installed python"
81     fi
82     }
83    
84     #
85     # name: python_mod_exists
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
88     # TRUE(0) if the module exists, and FALSE(1) if the module does
89     # not exist.
90 liquidx 1.6 #
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 liquidx 1.1 # exam:
96     # if python_mod_exists gtk; then
97     # echo "gtk support enabled
98     # fi
99     #
100     python_mod_exists() {
101 liquidx 1.6 export maketype="python"
102     if ! virtualmake -c "import $1" >/dev/null 2>&1; then
103 liquidx 1.1 return 1
104     fi
105     return 0
106     }
107    
108     #
109     # name: python_mod_compile
110     # desc: given a filename, it will pre-compile the module's .pyc and .pyo.
111     # should only be run in pkg_postinst()
112     # exam:
113     # python_mod_compile ${ROOT}usr/lib/python2.3/site-packages/pygoogle.py
114     #
115     python_mod_compile() {
116 liquidx 1.5 # allow compiling for older python versions
117     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
118     PYVER=${PYTHON_OVERRIDE_PYVER}
119     else
120     python_version
121     fi
122    
123 liquidx 1.1 if [ -f "$1" ]; then
124 liquidx 1.5 python${PYVER} -c "import py_compile; py_compile.compile('${1}')" || \
125 liquidx 1.1 ewarn "Failed to compile ${1}"
126 liquidx 1.5 python${PYVER} -O -c "import py_compile; py_compile.compile('${1}')" || \
127 liquidx 1.1 ewarn "Failed to compile ${1}"
128     else
129     ewarn "Unable to find ${1}"
130     fi
131     }
132    
133     #
134     # name: python_mod_optimize
135     # 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/ ..)
137     # no recursively
138     #
139     # if supplied with arguments, it will recompile all modules recursively
140     # in the supplied directory
141     # exam:
142     # python_mod_optimize ${ROOT}usr/share/codegen
143     #
144     python_mod_optimize() {
145 liquidx 1.5 # allow compiling for older python versions
146     if [ -n "${PYTHON_OVERRIDE_PYVER}" ]; then
147     PYVER=${PYTHON_OVERRIDE_PYVER}
148     else
149     python_version
150     fi
151    
152     # set opts
153     if [ "${PYVER}" = "2.2" ]; then
154     compileopts=""
155     else
156     compileopts="-q"
157     fi
158    
159     ebegin "Byte Compiling Python modules for ${PYVER} .."
160     python${PYVER} ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@
161     python${PYVER} -O ${ROOT}usr/lib/python${PYVER}/compileall.py ${compileopts} $@
162     eend $?
163 liquidx 1.1 }
164    
165     #
166     # name: python_mod_cleanup
167     # 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]
169     #
170     # it will recursively scan all compiled python modules in the directories
171     # 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
173     #
174     python_mod_cleanup() {
175     local SEARCH_PATH
176    
177 liquidx 1.5 if [ $# -gt 0 ]; then
178     for path in $@; do
179     SEARCH_PATH="${SEARCH_PATH} ${ROOT}${path#/}"
180     done
181     else
182     for path in ${ROOT}usr/lib/python*/site-packages; do
183     SEARCH_PATH="${SEARCH_PATH} ${path}"
184     done
185     fi
186 liquidx 1.1
187     for path in ${SEARCH_PATH}; do
188     einfo "Searching ${path} .."
189 liquidx 1.6 for obj in $(find ${path} -name *.pyc | sort -r); do
190 liquidx 1.1 src_py="$(echo $obj | sed 's:c$::')"
191     if [ ! -f "${src_py}" ]; then
192     einfo "Purging ${src_py}[co]"
193     rm -f ${src_py}[co]
194 liquidx 1.6 # 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 liquidx 1.1 fi
200     done
201     done
202     }

  ViewVC Help
Powered by ViewVC 1.1.20