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      1 # $NetBSD: t_patch.sh,v 1.4 2021/09/11 20:28:06 andvar Exp $
      2 #
      3 # Copyright (c) 2020, 2021 The NetBSD Foundation, Inc.
      4 # All rights reserved.
      5 #
      6 # Redistribution and use in source and binary forms, with or without
      7 # modification, are permitted provided that the following conditions
      8 # are met:
      9 # 1. Redistributions of source code must retain the above copyright
     10 #    notice, this list of conditions and the following disclaimer.
     11 # 2. Redistributions in binary form must reproduce the above copyright
     12 #    notice, this list of conditions and the following disclaimer in the
     13 #    documentation and/or other materials provided with the distribution.
     14 #
     15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25 # POSSIBILITY OF SUCH DAMAGE.
     26 #
     27 
     28 patch_lines() {
     29 
     30 	printf "%$1s" | tr " " "a" > longlines 2>/dev/null
     31 
     32 	cat << EOF > longlines.patch
     33 --- ./longlines.orig 2019-10-16 09:25:30.667656644 +0000
     34 +++ ./longlines
     35 @@ -1 +1 @@
     36 EOF
     37 	printf -- "-%$1s\n" | tr " " "a" >> longlines.patch 2>/dev/null
     38 	printf -- "+%$1s" | tr " " "b" >> longlines.patch 2>/dev/null
     39 
     40 	patch longlines < longlines.patch
     41 
     42 	if [ ! $? -eq 0 ]; then
     43 		atf_fail "Failed to patch long lines"
     44 	fi
     45 }
     46 
     47 atf_test_case lines
     48 lines_head()
     49 {
     50 	atf_set "descr" "Test patching lines"
     51 }
     52 
     53 lines_body()
     54 {
     55 	lines="1 10 100 1000 8100"
     56 
     57 	for line in $lines; do
     58 		patch_lines $line
     59 	done
     60 }
     61 
     62 atf_test_case long_lines
     63 long_lines_head()
     64 {
     65 	atf_set "descr" "Test patching long lines (PR bin/54620)"
     66 }
     67 
     68 long_lines_body()
     69 {
     70 	patch_lines 10000
     71 }
     72 
     73 atf_test_case backup_simple
     74 backup_simple_head()
     75 {
     76 	atf_set "descr" "Test backup type 'simple' (-V simple)"
     77 }
     78 
     79 backup_simple_body()
     80 {
     81 	# Create the backup file so it's overwritten.
     82 	touch to_patch.orig
     83 	printf '%s\n' 'original file' > to_patch
     84 
     85 	cat << EOF > test_diff.patch
     86 --- original_file       2021-02-20 09:21:07.100869692 +0100
     87 +++ new_file    2021-02-20 09:21:10.912906887 +0100
     88 @@ -1 +1 @@
     89 -original text
     90 +new text
     91 EOF
     92 	cksum=$(sha256 -n to_patch | cut -d' ' -f1)
     93 	patch -V simple to_patch < test_diff.patch
     94 	atf_check [ -f to_patch.orig ]
     95 	origfile_cksum=$(sha256 -n to_patch.orig | cut -d' ' -f1)
     96 	atf_check_equal "$cksum" "$origfile_cksum"
     97 	atf_check grep -q -m 1 '^new text$' to_patch
     98 }
     99 
    100 atf_test_case backup_none
    101 backup_none_head()
    102 {
    103 	atf_set "descr" "Test backup type 'none' (-V none)"
    104 }
    105 
    106 backup_none_body()
    107 {
    108 	printf '%s\n' 'original file' > to_patch
    109 
    110 	cat << EOF > test_diff.patch
    111 --- original_file       2021-02-20 09:21:07.100869692 +0100
    112 +++ new_file    2021-02-20 09:21:10.912906887 +0100
    113 @@ -1 +1 @@
    114 -original text
    115 +new text
    116 EOF
    117 	# Patch would mistakenly create 'simple' backup files when unwanted:
    118 	# http://mail-index.netbsd.org/tech-userlevel/2021/02/19/msg012901.html
    119 	patch -V none to_patch < test_diff.patch
    120 	atf_check [ ! -f to_patch.orig ]
    121 	atf_check grep -q -m 1 '^new text$' to_patch
    122 
    123 	# Environment variables should be overridden.
    124 	printf '%s\n' 'original file' > to_patch
    125 	VERSION_CONTROL=existing patch -V none to_patch \
    126 	    < test_diff.patch
    127 	atf_check [ ! -f to_patch.orig ]
    128 	atf_check grep -q -m 1 '^new text$' to_patch
    129 
    130 	# --posix should imply -V none.
    131 	printf '%s\n' 'original file' > to_patch
    132 	patch --posix to_patch < test_diff.patch
    133 	atf_check [ ! -f to_patch.orig ]
    134 	atf_check grep -q -m 1 '^new text$' to_patch
    135 }
    136 
    137 atf_test_case backup_numbered
    138 backup_numbered_head()
    139 {
    140 	atf_set "descr" "Test backup type 'numbered' (-V numbered)"
    141 }
    142 
    143 backup_numbered_body()
    144 {
    145 	printf '%s\n' 'original file' > to_patch
    146 
    147 	cat << EOF > test_diff.patch
    148 --- original_file       2021-02-20 09:21:07.100869692 +0100
    149 +++ new_file    2021-02-20 09:21:10.912906887 +0100
    150 @@ -1 +1 @@
    151 -original text
    152 +new text
    153 EOF
    154 	cksum1=$(sha256 -n to_patch | cut -d' ' -f1)
    155 	patch -V numbered to_patch < test_diff.patch
    156 	atf_check grep -q -m 1 '^new text$' to_patch
    157 
    158 	cat << EOF > test_diff2.patch
    159 --- new_file	2021-02-20 09:44:52.363230019 +0100
    160 +++ newer_file	2021-02-20 09:43:54.592863401 +0100
    161 @@ -1 +1 @@
    162 -new text
    163 +newer text
    164 EOF
    165 	cksum2=$(sha256 -n to_patch | cut -d' ' -f1)
    166 	patch -V numbered to_patch < test_diff2.patch
    167 	atf_check grep -q -m 1 '^newer text$' to_patch
    168 
    169 	# Make sure the backup files match the original files.
    170 	origfile_cksum1=$(sha256 -n to_patch.~1~ | cut -d' ' -f1)
    171 	origfile_cksum2=$(sha256 -n to_patch.~2~ | cut -d' ' -f1)
    172 	atf_check [ -f to_patch.~1~ ]
    173 	atf_check_equal "$cksum1" "$origfile_cksum1"
    174 	atf_check [ -f to_patch.~2~ ]
    175 	atf_check_equal "$cksum2" "$origfile_cksum2"
    176 }
    177 
    178 atf_init_test_cases()
    179 {
    180 	atf_add_test_case lines
    181 	atf_add_test_case long_lines
    182 	atf_add_test_case backup_simple
    183 	atf_add_test_case backup_none
    184 	atf_add_test_case backup_numbered
    185 }
    186