1 files changed, 80 insertions, 0 deletions
diff --git a/tools/dev/min-includes.sh b/tools/dev/min-includes.sh
new file mode 100755
index 0000000..53dfb84
--- /dev/null
+++ b/tools/dev/min-includes.sh
@@ -0,0 +1,80 @@
+#!/bin/sh
+#
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+#
+#
+# Attempt to figure out the minimum set of includes for our header files.
+#
+# ### this is incomplete. it merely lists the header files in order from
+# ### "no dependencies on other svn headers" to the larger header files
+# ### which have dependencies. manually working through the headers in
+# ### this order will minimize includes.
+#
+# Each header file is test-compiled to ensure that it has enough headers.
+# Of course, this could be false-positive because another header that
+# has been included has further included something to enable compilation
+# of the header in question. More sophisticated testing (e.g. filtering
+# includes out of the included header) would be necessary for detection.
+#
+
+files="*.h private/*.h"
+deps="deps.$$"
+
+INCLUDES="-I. -I.. -I/usr/include/apr-1 -I/usr/include/apache2"
+
+rm -f "$deps"
+for f in $files ; do
+  sed -n "s%#include \"\(svn_[a-z0-9_]*\.h\)\".*%$f \1%p" $f | fgrep -v svn_private_config.h >> "$deps"
+done
+
+
+function process_file ()
+{
+  echo "Processing $header"
+
+  echo "#include \"$header\"" > "$deps".c
+  gcc -o /dev/null -S $INCLUDES "$deps".c
+
+  ### monkey the includes and recompile to find the minimal set
+}
+
+while test -s "$deps" ; do
+#wc -l $deps
+
+  for header in $files ; do
+
+    if grep -q "^$header" "$deps" ; then
+      continue
+    fi
+
+    process_file
+
+    fgrep -v "$header" "$deps" > "$deps".new
+    mv "$deps".new "$deps"
+
+    files="`echo $files | sed s%$header%%`"
+    break
+  done
+
+done
+
+for header in $files ; do
+  process_file
+done