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1#!/bin/sh
2#
3# Copyright (C) 2010 The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#      http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16#
17
18# Script used to patch a source directory from a series of patches
19# located under a directory hierarchy
20
21. `dirname $0`/prebuilt-common.sh
22
23PROGRAM_PARAMETERS="<src-dir> <patches-dir>"
24PROGRAM_DESCRIPTION=\
25"Patch a target source directory with a series of patches taken
26from another directory hierarchy. The idea is that anything that
27is found under <patches-dir>/subdir/foo.patch will be applied with
28'patch -p1' in <src-dir>/subdir.
29
30Patches are applied in the order they are found by 'find'."
31
32parse_parameters ()
33{
34    SRC_DIR=$1
35    if [ -z "$SRC_DIR" ] ; then
36        echo "ERROR: Missing source directory. See --help for usage."
37        exit 1
38    fi
39
40    if [ ! -d "$SRC_DIR" ] ; then
41        echo "ERROR: Invalid target source directory: $SRC_DIR"
42        exit 1
43    fi
44
45    PATCHES_DIR=$2
46    if [ -z "$PATCHES_DIR" ] ; then
47        echo "ERROR: Missing patches directory. See --help for usage."
48        exit 1
49    fi
50
51    if [ ! -d "$PATCHES_DIR" ] ; then
52        echo "ERROR: Invalid patches directory: $PATCHES_DIR"
53        exit 1
54    fi
55}
56
57extract_parameters "$@"
58parse_parameters $PARAMETERS
59
60PATCHES=`(cd $PATCHES_DIR && find . -name "*.patch" | sort ) 2> /dev/null`
61if [ -z "$PATCHES" ] ; then
62    log "No patches files in $PATCHES_DIR"
63    exit 0
64fi
65PATCHES=`echo $PATCHES | sed -e s%^\./%%g`
66for PATCH in $PATCHES; do
67    PATCHDIR=`dirname $PATCH`
68    PATCHNAME=`basename $PATCH`
69    log "Applying $PATCHNAME into $SRC_DIR/$PATCHDIR"
70    cd $SRC_DIR/$PATCHDIR && patch -p1 < $PATCHES_DIR/$PATCH
71    fail_panic "Patch failure with $PATCHES_DIR/$PATCH!! !! Please check your patches directory!"
72done
73
74dump "Done!"
75