1#!/bin/bash
2
3# FIXME: do we need a license (or whatever else) header here?
4
5# This script merges libsanitizer sources from upstream.
6
7get_upstream() {
8  rm -rf upstream
9  #cp -rf orig upstream
10  svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk upstream
11}
12
13get_current_rev() {
14  cd upstream
15  svn info | grep Revision | grep -o '[0-9]*'
16}
17
18list_files() {
19  (cd $1; ls *.{cc,h,inc,S} 2> /dev/null)
20
21}
22
23change_comment_headers() {
24  for f in $(list_files $1); do
25    changed=$(awk 'NR != 2 && NR != 3' < $1/$f)
26    echo "$changed" > $1/$f
27  done
28}
29
30# ARGUMENTS: upstream_path local_path
31# This function merges changes from the directory upstream_path to
32# the directory  local_path.
33merge() {
34  upstream_path=upstream/$1
35  local_path=$2
36  change_comment_headers $upstream_path
37  echo MERGE: $upstream_path
38  all=$( (list_files $upstream_path; list_files $local_path) | sort | uniq)
39  #echo $all
40  for f in $all; do
41    if  [ -f $upstream_path/$f -a -f $local_path/$f ]; then
42      echo "FOUND IN BOTH     :" $f
43      # diff -u $local_path/$f $upstream_path/$f
44      cp -v $upstream_path/$f $local_path
45    elif [ -f $upstream_path/$f ]; then
46      echo "FOUND IN UPSTREAM :" $f
47      cp -v $upstream_path/$f $local_path
48      svn add $local_path/$f
49    elif [ -f $local_path/$f ]; then
50      echo "FOUND IN LOCAL    :" $f
51      svn remove $local_path/$f
52    fi
53  done
54
55}
56
57fatal() {
58  echo "$1"
59  exit 1;
60}
61
62pwd | grep 'libsanitizer$' || \
63  fatal "Run this script from libsanitizer dir"
64get_upstream
65CUR_REV=$(get_current_rev)
66echo Current upstream revision: $CUR_REV
67merge include/sanitizer include/sanitizer
68merge lib/asan asan
69merge lib/lsan lsan
70merge lib/tsan/rtl tsan
71merge lib/sanitizer_common sanitizer_common
72merge lib/interception interception
73merge lib/ubsan ubsan
74
75rm -rf upstream
76
77# Update the MERGE file.
78cat << EOF > MERGE
79$CUR_REV
80
81The first line of this file holds the svn revision number of the
82last merge done from the master library sources.
83EOF
84