llvm-project/llvm/utils/mkpatch

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#!/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; fname=substr($0,7); \
print "Skipping: ", fname > "/dev/stderr"; } \
/^Index:.*/ && !/^Index: .*[.]cvs$/ { deleting = 0; } \
{ if (! deleting) { print; } } \
' > "$NAME".patch || error "sed/awk cleanup failed"