[cig-commits] r4616 - cs/autoconf/trunk

[leif at geodynamics.org]

Author: leif
Date: 2006-09-25 16:41:07 -0700 (Mon, 25 Sep 2006)
New Revision: 4616

Added:
   cs/autoconf/trunk/cit_python_eggs.m4
Log:
Wrote Autoconf macros for Python eggs.


Added: cs/autoconf/trunk/cit_python_eggs.m4
===================================================================
--- cs/autoconf/trunk/cit_python_eggs.m4	2006-09-25 22:46:05 UTC (rev 4615)
+++ cs/autoconf/trunk/cit_python_eggs.m4	2006-09-25 23:41:07 UTC (rev 4616)
@@ -0,0 +1,164 @@
+# -*- Autoconf -*-
+
+
+## -------------------------------- ##
+## Autoconf macros for Python eggs. ##
+## -------------------------------- ##
+
+
+# CIT_CHECK_PYTHON_EGG(REQUIREMENT,
+#                      [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]])
+# --------------------------------------------------------------
+
+# Check for REQUIREMENT using pkg_resources.require().  If the
+# corresponding distribution is found, append it to the list of
+# requirements and execute ACTION-IF-FOUND.  Otherwise, execute
+# ACTION-IF-NOT-FOUND.
+
+AC_DEFUN([CIT_CHECK_PYTHON_EGG], [
+# $Id$
+
+AC_MSG_CHECKING([for "$1"])
+
+cat >check_python_egg.py <<END_OF_PYTHON
+[
+import sys
+try:
+    from pkg_resources import require
+    require("$1")
+except Exception, e:
+    print >>sys.stderr, e
+    print "cit_egg_status=1"
+else:
+    print "cit_egg_status=0"
+]
+END_OF_PYTHON
+
+AS_IF([AC_TRY_COMMAND([$PYTHON check_python_egg.py >conftest.sh 2>&AS_MESSAGE_LOG_FD])],
+      [],
+      [AC_MSG_RESULT(failed)
+      AC_MSG_FAILURE([cannot check for Python eggs])])
+eval `cat conftest.sh`
+rm -f conftest.sh check_python_egg.py
+
+if test "$cit_egg_status" == 0; then
+    AC_MSG_RESULT(yes)
+    cit_egg_requirements="$1:$cit_egg_requirements"
+    $2
+else
+    AC_MSG_RESULT(no)
+    m4_default([$3], [AC_MSG_ERROR([required Python package not found; try running "$PYTHON setup.py"])])
+fi
+
+])dnl CIT_CHECK_PYTHON_EGG
+
+
+# CIT_PYTHON_EGG_FLAGS
+# --------------------
+
+# Perform a breadth-first traversal of Python dependencies (as
+# indicated by the requirements accumulated by CIT_CHECK_PYTHON_EGG).
+# Set PYTHON_EGG_CFLAGS, PYTHON_EGG_CPPFLAGS, and PYTHON_EGG_LDFLAGS
+# according to each dependency's "config.cfg" metadata, if present.
+
+# Loosely inspired by PKG_CHECK_MODULES.  See pkg-config(1).
+
+AC_DEFUN([CIT_PYTHON_EGG_FLAGS], [
+# $Id$
+
+AC_MSG_CHECKING([for egg-related flags])
+
+cat >check_python_egg.py <<END_OF_PYTHON
+[
+try:
+    from pkg_resources import require
+except Exception, e:
+    print >>sys.stderr, e
+    sys.exit(0)
+
+import sys
+from ConfigParser import ConfigParser, NoOptionError
+from StringIO import StringIO
+
+flags = dict(
+    CFLAGS = [],
+    CPPFLAGS = [],
+    LDFLAGS = [],
+)
+
+cit_egg_requirements = "$cit_egg_requirements"
+requirements = cit_egg_requirements.split(':')
+
+deps = require(*requirements)
+deps.reverse()
+dependencies = []
+processed = {}
+for dist in deps:
+    if dist in processed:
+        continue
+    dependencies.insert(0, dist)
+    processed[dist] = True
+for dist in dependencies:
+    if dist.has_metadata('config.cfg'):
+        parser = ConfigParser({'location': dist.location})
+        config = dist.get_metadata('config.cfg')
+        fp = StringIO(config)
+        parser.readfp(fp, 'config.cfg')
+        for k,v in flags.iteritems():
+            try:
+                v.append(parser.get('flags', k))
+            except NoOptionError:
+                pass
+
+for k,v in flags.iteritems():
+    print 'PYTHON_EGG_%s="%s"' % (k, ' '.join(v))
+]
+END_OF_PYTHON
+
+AS_IF([AC_TRY_COMMAND([$PYTHON check_python_egg.py >conftest.sh 2>&AS_MESSAGE_LOG_FD])],
+      [AC_MSG_RESULT(ok)],
+      [AC_MSG_RESULT(failed)
+      AC_MSG_FAILURE([cannot scan Python eggs for flags])])
+eval `cat conftest.sh`
+rm -f conftest.sh check_python_egg.py
+
+AC_SUBST(PYTHON_EGG_CFLAGS)
+AC_SUBST(PYTHON_EGG_CPPFLAGS)
+AC_SUBST(PYTHON_EGG_LDFLAGS)
+
+])dnl CIT_PYTHON_EGG_FLAGS
+
+
+# CIT_PYTHON_EGG_REQUIRES
+# -----------------------
+
+# Dump Python egg requirements (accumulated by CIT_CHECK_PYTHON_EGG)
+# to 'requires.txt'.
+
+AC_DEFUN([CIT_PYTHON_EGG_REQUIRES], [
+# $Id$
+
+ofile=requires.txt
+requiresfile="${ofile}T"
+trap "rm \"$requiresfile\"; exit 1" 1 2 15
+rm -f "$requiresfile"
+
+AC_MSG_NOTICE([creating $ofile])
+
+cit_save_IFS=$IFS; IFS=:
+for cit_egg_requirement in $cit_egg_requirements
+do
+    IFS=$cit_save_IFS
+    echo $cit_egg_requirement >>$requiresfile
+done
+
+mv -f "$requiresfile" "$ofile" || \
+    (rm -f "$ofile" && cp "$requiresfile" "$ofile" && rm -f "$requiresfile")
+
+AC_SUBST([pythoneggdir], [\${pythondir}/$PACKAGE-$PACKAGE_VERSION.egg])
+AC_SUBST([pythonegginfodir], [\${pythoneggdir}/EGG-INFO])
+
+])dnl CIT_PYTHON_EGG_REQUIRES
+
+
+dnl end of file


Property changes on: cs/autoconf/trunk/cit_python_eggs.m4
___________________________________________________________________
Name: svn:keywords
   + Id