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t_patch.sh revision 1.2
      1 # $NetBSD: t_patch.sh,v 1.2 2021/02/20 08:59:24 nia 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 $line
     59 	done
     60 }
     61 
     62 atf_test_case long_lines
     63 long_lines_head()
     64 {
     65 	atf_set "descr" "Test patching long lines (PR bin/54620)"
     66 }
     67 
     68 long_lines_body()
     69 {
     70 	atf_expect_fail "PR bin/54620"
     71 	patch_lines 10000
     72 }
     73 
     74 atf_test_case backup_simple
     75 backup_simple_head()
     76 {
     77 	atf_set "descr" "Test backup type 'simple' (-V simple)"
     78 }
     79 
     80 backup_simple_body()
     81 {
     82 	# Create the backup file so it's overwritten.
     83 	touch to_patch.orig
     84 	printf '%s\n' 'original file' > to_patch
     85 
     86 	cat << EOF > test_diff.patch
     87 --- original_file       2021-02-20 09:21:07.100869692 +0100
     88 +++ new_file    2021-02-20 09:21:10.912906887 +0100
     89 @@ -1 +1 @@
     90 -original text
     91 +new text
     92 EOF
     93 	cksum=$(sha256 -n to_patch | cut -d' ' -f1)
     94 	patch -V simple to_patch < test_diff.patch
     95 	atf_check [ -f to_patch.orig ]
     96 	origfile_cksum=$(sha256 -n to_patch.orig | cut -d' ' -f1)
     97 	atf_check_equal "$cksum" "$origfile_cksum"
     98 	atf_check grep -q -m 1 '^new text$' to_patch
     99 }
    100 
    101 atf_test_case backup_none
    102 backup_none_head()
    103 {
    104 	atf_set "descr" "Test backup type 'none' (-V none)"
    105 }
    106 
    107 backup_none_body()
    108 {
    109 	printf '%s\n' 'original file' > to_patch
    110 
    111 	cat << EOF > test_diff.patch
    112 --- original_file       2021-02-20 09:21:07.100869692 +0100
    113 +++ new_file    2021-02-20 09:21:10.912906887 +0100
    114 @@ -1 +1 @@
    115 -original text
    116 +new text
    117 EOF
    118 	# Patch would mistakenly create 'simple' backup files when unwanted:
    119 	# http://mail-index.netbsd.org/tech-userlevel/2021/02/19/msg012901.html
    120 	patch -V none to_patch < test_diff.patch
    121 	atf_check [ ! -f to_patch.orig ]
    122 	atf_check grep -q -m 1 '^new text$' to_patch
    123 
    124 	# Environment variables should be overriden.
    125 	printf '%s\n' 'original file' > to_patch
    126 	VERSION_CONTROL=existing patch -V none to_patch \
    127 	    < test_diff.patch
    128 	atf_check [ ! -f to_patch.orig ]
    129 	atf_check grep -q -m 1 '^new text$' to_patch
    130 
    131 	# --posix should imply -V none.
    132 	printf '%s\n' 'original file' > to_patch
    133 	patch --posix to_patch < test_diff.patch
    134 	atf_check [ ! -f to_patch.orig ]
    135 	atf_check grep -q -m 1 '^new text$' to_patch
    136 }
    137 
    138 atf_test_case backup_numbered
    139 backup_numbered_head()
    140 {
    141 	atf_set "descr" "Test backup type 'numbered' (-V numbered)"
    142 }
    143 
    144 backup_numbered_body()
    145 {
    146 	printf '%s\n' 'original file' > to_patch
    147 
    148 	cat << EOF > test_diff.patch
    149 --- original_file       2021-02-20 09:21:07.100869692 +0100
    150 +++ new_file    2021-02-20 09:21:10.912906887 +0100
    151 @@ -1 +1 @@
    152 -original text
    153 +new text
    154 EOF
    155 	cksum1=$(sha256 -n to_patch | cut -d' ' -f1)
    156 	patch -V numbered to_patch < test_diff.patch
    157 	atf_check grep -q -m 1 '^new text$' to_patch
    158 
    159 	cat << EOF > test_diff2.patch
    160 --- new_file	2021-02-20 09:44:52.363230019 +0100
    161 +++ newer_file	2021-02-20 09:43:54.592863401 +0100
    162 @@ -1 +1 @@
    163 -new text
    164 +newer text
    165 EOF
    166 	cksum2=$(sha256 -n to_patch | cut -d' ' -f1)
    167 	patch -V numbered to_patch < test_diff2.patch
    168 	atf_check grep -q -m 1 '^newer text$' to_patch
    169 
    170 	# Make sure the backup files match the original files.
    171 	origfile_cksum1=$(sha256 -n to_patch.~1~ | cut -d' ' -f1)
    172 	origfile_cksum2=$(sha256 -n to_patch.~2~ | cut -d' ' -f1)
    173 	atf_check [ -f to_patch.~1~ ]
    174 	atf_check_equal "$cksum1" "$origfile_cksum1"
    175 	atf_check [ -f to_patch.~2~ ]
    176 	atf_check_equal "$cksum2" "$origfile_cksum2"
    177 }
    178 
    179 atf_init_test_cases()
    180 {
    181 	atf_add_test_case lines
    182 	atf_add_test_case long_lines
    183 	atf_add_test_case backup_simple
    184 	atf_add_test_case backup_none
    185 	atf_add_test_case backup_numbered
    186 }
    187