This is a utility for preparing patches against LLVM. It runs cvs diff with

the correct options, places the patch content in order that makes sense for
review, and filters cruft out of the patch (like diffs in *.cvs files). It
produces both a NAME.patch.raw (unfiltered) and NAME.patch (filtered) file.

llvm-svn: 31850

llvm/utils/mkpatch

@@ -0,0 +1,36 @@
+#!/bin/bash
+#
+# This script makes a patch for LLVM ensuring the correct diff options and
+# putting the files in a standard review order.
+
+
+function error {
+  retcode="$?"
+  echo "mkpatch: error: $1 ($retcode)"
+  exit 1
+}
+
+if [ ! -e llvm.spec.in ] ; then
+  error "Please change directory to the LLVM top source directory"
+fi
+if [ "$#" -ne 1 ] ; then
+  error "usage: utils/mkpatch [PATCH_NAME]"
+fi
+NAME="$1"
+echo "mkpatch: Generating differences on top level files"
+cvs diff -l -Ntdup -5 . > "$NAME".patch.raw 2>&1
+echo "mkpatch: Generating differences on all directories"
+cvs diff -Ntdup -5 >> "$NAME".patch.raw 2>&1 \
+  autoconf docs utils include lib/System lib/Support lib/VMCore lib/AsmParser \
+  lib/Bytecode lib/Analysis lib/Transforms lib/CodeGen lib/Target \
+  lib/ExecutionEngine lib/Debugger lib/Linker \
+  tools test runtime projects examples win32 Xcode
+
+echo "mkpatch: Removing cruft from the patch file"
+sed "$NAME".patch.raw -e '/^[?] .*/d' -e '/^cvs diff: Diffing/d' | awk '\
+BEGIN { deleting = 0; } \
+/^Index: .*[.]cvs$/ { deleting = 1; } \
+/^Index:.*/ && !/^Index: .*[.]cvs$/ { deleting = 0; } \
+{ if (! deleting) { print; } } \
+'  > "$NAME".patch  || error "sed/awk cleanup failed"
+