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1#!/bin/sh
2#===-- merge.sh - Test the LLVM release candidates -------------------------===#
3#
4#                     The LLVM Compiler Infrastructure
5#
6# This file is distributed under the University of Illinois Open Source
7# License.
8#
9#===------------------------------------------------------------------------===#
10#
11# Merge a revision into a project.
12#
13#===------------------------------------------------------------------------===#
14
15set -e
16
17rev=""
18proj=""
19revert="no"
20srcdir=""
21
22usage() {
23    echo "usage: `basename $0` [OPTIONS]"
24    echo "  -proj PROJECT  The project to merge the result into"
25    echo "  -rev NUM       The revision to merge into the project"
26    echo "  -revert        Revert rather than merge the commit"
27    echo "  -srcdir        The root of the project checkout"
28}
29
30while [ $# -gt 0 ]; do
31    case $1 in
32        -rev | --rev | -r )
33            shift
34            rev=$1
35            ;;
36        -proj | --proj | -project | --project | -p )
37            shift
38            proj=$1
39            ;;
40        --srcdir | -srcdir | -s)
41            shift
42            srcdir=$1
43            ;;
44        -h | -help | --help )
45            usage
46            ;;
47        -revert | --revert )
48            revert="yes"
49            ;;
50        * )
51            echo "unknown option: $1"
52            echo ""
53            usage
54            exit 1
55            ;;
56    esac
57    shift
58done
59
60if [ -z "$srcdir" ]; then
61    srcdir="$proj.src"
62fi
63
64if [ "x$rev" = "x" -o "x$proj" = "x" ]; then
65    echo "error: need to specify project and revision"
66    echo
67    usage
68    exit 1
69fi
70
71if ! svn ls http://llvm.org/svn/llvm-project/$proj/trunk > /dev/null 2>&1 ; then
72    echo "error: invalid project: $proj"
73    exit 1
74fi
75
76tempfile=`mktemp /tmp/merge.XXXXXX` || exit 1
77
78if [ $revert = "yes" ]; then
79    echo "Reverting r$rev:" > $tempfile
80else
81    echo "Merging r$rev:" > $tempfile
82fi
83svn log -c $rev http://llvm.org/svn/llvm-project/$proj/trunk >> $tempfile 2>&1
84
85cd "$srcdir"
86echo "# Updating tree"
87svn up
88
89if [ $revert = "yes" ]; then
90    echo "# Reverting r$rev in $proj locally"
91    svn merge -c -$rev . || exit 1
92else
93    echo "# Merging r$rev into $proj locally"
94    svn merge -c $rev https://llvm.org/svn/llvm-project/$proj/trunk . || exit 1
95fi
96
97echo
98echo "# To commit, run the following in $srcdir/:"
99echo svn commit -F $tempfile
100
101exit 0
102