>Submitter-Id: current-users
>Originator: Marcus von Appen
>Organization:
>Confidential: no
>Synopsis: [PATCH]: prevent checksum mismatches for compiled python files
>on installing python ports via the ports tree
>Severity: non-critical
>Priority: medium
>Category: ports
>Class: sw-bug
>Release: FreeBSD 9.0-STABLE amd64
>Environment:
System: FreeBSD medusa.sysfault.org 9.0-STABLE FreeBSD 9.0-STABLE #0: Mon May
14 15:08:44 CEST 2012 r...@medusa.sysfault.org:/usr/obj/usr/src/sys/MEDUSA amd64
>Description:
The default configuration within bsd.python.mk installs python
packages that use distutils or easy_install with byte-compiled
files.
The compiled (.pyc/.pyo) files contain a timestamp and magic
number which are used as identicators for recompiling the files,
if their original source (.py) differs in its st_mtime value or
if Python's magic number changes.
Whenever the byte-compiled files change, a checksum mismatch
will be raised on deinstall or reinstalling the port.
For a lengthy rant about this issue, check
http://wiki.freebsd.org/Ports/Python/CompiledPackages
>How-To-Repeat:
- install a python port that installs .pyc/.pyo files
- slightly modify one of the original .py files - OR -
- change the date/timestamp on the original file (using touch)
- deinstall/reinstall the Python interpreter
- (as root user) import the file as module in the python interpreter
- deinstall the port
>Fix:
The following fix introduces a new _CLEANUP_CONTENTS command
chain, which is injected into the fake-pkg: target. It can be
used to perform clean-up operations on the +CONTENTS file of
the pkg_install toolchain.
Within bsd.python.mk _CLEANUP_CONTENTS will be enhanced, so that
the @comment MD5: entry for +CONTENTS entries, that denote a
.pyc or .py file, is removed.
The change will need an -exp run to verify that the installation
and deinstallation still works for all ports.
Index: Mk/bsd.port.mk
===================================================================
RCS file: /home/pcvs/ports/Mk/bsd.port.mk,v
retrieving revision 1.724
diff -u -r1.724 bsd.port.mk
--- Mk/bsd.port.mk 31 May 2012 14:27:23 -0000 1.724
+++ Mk/bsd.port.mk 3 Jun 2012 12:24:32 -0000
@@ -5850,6 +5850,8 @@
.endif
.endif
+_CLEANUP_CONTENTS?= ${DO_NADA};
+
# Fake installation of package so that user can pkg_delete it later.
# Also, make sure that an installed port is recognized correctly in
# accordance to the @pkgdep directive in the packing lists
@@ -5869,6 +5871,7 @@
${ECHO_MSG} "===> Registering installation for ${PKGNAME}"; \
${MKDIR} ${PKG_DBDIR}/${PKGNAME}; \
${PKG_CMD} ${PKG_ARGS} -O ${PKGFILE} >
${PKG_DBDIR}/${PKGNAME}/+CONTENTS; \
+ ${_CLEANUP_CONTENTS} \
${CP} ${DESCR} ${PKG_DBDIR}/${PKGNAME}/+DESC; \
${ECHO_CMD} ${COMMENT:Q} > ${PKG_DBDIR}/${PKGNAME}/+COMMENT; \
if [ -f ${PKGINSTALL} ]; then \
Index: Mk/bsd.python.mk
===================================================================
RCS file: /home/pcvs/ports/Mk/bsd.python.mk,v
retrieving revision 1.146
diff -u -r1.146 bsd.python.mk
--- Mk/bsd.python.mk 30 May 2012 14:54:34 -0000 1.146
+++ Mk/bsd.python.mk 3 Jun 2012 12:24:32 -0000
@@ -515,6 +515,10 @@
PYDISTUTILS_EGGINFO?=
${PYDISTUTILS_PKGNAME:C/[^A-Za-z0-9.]+/_/g}-${PYDISTUTILS_PKGVERSION:C/[^A-Za-z0-9.]+/_/g}-py${PYTHON_VER}.egg-info
PYDISTUTILS_EGGINFODIR?=${PYTHONPREFIX_SITELIBDIR}
+# Override bsd.port.mk's setting
+_CLEANUP_CONTENTS+= \
+ ${SED} -i -e '/\.py[co]$$/{n;d;}' ${PKG_DBDIR}/${PKGNAME}/+CONTENTS;
+
.if !defined(PYDISTUTILS_NOEGGINFO) && \
(defined(INSTALLS_EGGINFO) || \
(defined(USE_PYDISTUTILS) && \
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