1 #!/bin/sh
2 #
3 # Copyright (c) 2019, 2020 Stefan Sperling <stsp@openbsd.org>
4 #
5 # Permission to use, copy, modify, and distribute this software for any
6 # purpose with or without fee is hereby granted, provided that the above
7 # copyright notice and this permission notice appear in all copies.
8 #
9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 
17 export GIT_AUTHOR_NAME="Flan Hacker"
18 export GIT_AUTHOR_EMAIL="flan_hacker@openbsd.org"
19 export GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"
20 export GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"
21 export GOT_AUTHOR="$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"
22 export GOT_AUTHOR_8="flan_hac"
23 export GOT_AUTHOR_11="flan_hacker"
24 export GOT_LOG_DEFAULT_LIMIT=0
25 export GOT_TEST_ROOT="/tmp"
26 
27 export MALLOC_OPTIONS=S
28 
29 date()
30 {
31 	DATECMD="date"
32 	[ "$PLATFORM" != "linux" ] && DATECMD="gdate"
33 
34 	command "$DATECMD" "$@"
35 }
36 
37 ln()
38 {
39 	LNCMD="ln"
40 	[ "$PLATFORM" != "linux" ] && LNCMD="gln"
41 
42 	command "$LNCMD" "$@"
43 }
44 
45 sed()
46 {
47 	SEDCMD="sed"
48 
49 	# On non-linux systems, the sed command can happily accept "-i ''" as
50 	# a valid command to not save backup files for in-place edits.
51 	# However, on linux, "-i ''" would be treated as "-i" with a blank
52 	# argument, and hence, no file to edit in-place, which is an error.
53 	#
54 	# Therefore, scan the argument list and remove "-i ''", replacing it
55 	# with just "-i".
56 	[ "$PLATFORM" = "linux" ] && {
57 		set -- "$@"
58 		i=1
59 		while [ "$i" -le "$#" ]; do
60 			m=$((i + 1))
61 			[ "${!i}" = "-i" ] && [ -z "${!m}" ] && {
62 				shift 2
63 				command "$SEDCMD" -i "$@"
64 				return
65 			}
66 			i=$((i + 1))
67 		done
68 	}
69 	command "$SEDCMD" "$@"
70 }
71 
72 
73 git_init()
74 {
75 	git init -q "$1"
76 
77 	# Switch the default branch to match our test expectations if needed.
78 	# Only need to change HEAD since 'git init' did not create any refs.
79 	# Relying on implementation details of 'git init' is no problem for us.
80 	# We want to be alerted when Git changes fundamental assumptions such
81 	# as what an empty repository looks like and where the default branch
82 	# is set. In such cases Got's own tooling might well need to change
83 	# its behaviour, too, and our tests should fail.
84 	# TODO: Update all tests to assume 'main' instead of 'master' and
85 	# switch to main here, to match Got's own default.
86 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
87 }
88 
89 maybe_pack_repo()
90 {
91 	local repo="$1"
92 	if [ -n "$GOT_TEST_PACK" ]; then
93 		(cd $repo && git repack -a -q)
94 	fi
95 }
96 
97 git_commit()
98 {
99 	local repo="$1"
100 	shift
101 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
102 	maybe_pack_repo $repo
103 }
104 
105 git_rm()
106 {
107 	local repo="$1"
108 	shift
109 	(cd $repo && git rm -q "$@")
110 }
111 
112 git_show_head()
113 {
114 	local repo="$1"
115 	(cd $repo && git show --no-patch --pretty='format:%H')
116 }
117 
118 git_show_branch_head()
119 {
120 	local repo="$1"
121 	local branch="$2"
122 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
123 }
124 
125 
126 git_show_author_time()
127 {
128 	local repo="$1"
129 	local object="$2"
130 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
131 }
132 
133 git_show_tagger_time()
134 {
135 	local repo="$1"
136 	local tag="$2"
137 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
138 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
139 }
140 
141 git_show_parent_commit()
142 {
143 	local repo="$1"
144 	local commit="$2"
145 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
146 }
147 
148 git_show_tree()
149 {
150 	local repo="$1"
151 	(cd $repo && git show --no-patch --pretty='format:%T')
152 }
153 
154 trim_obj_id()
155 {
156 	local trimcount=$1
157 	local id=$2
158 
159 	local pat=""
160 	while [ "$trimcount" -gt 0 ]; do
161 		pat="[0-9a-f]$pat"
162 		trimcount=$((trimcount - 1))
163 	done
164 
165 	echo ${id%$pat}
166 }
167 
168 git_commit_tree()
169 {
170 	local repo="$1"
171 	local msg="$2"
172 	local tree="$3"
173 	(cd $repo && git commit-tree -m "$msg" "$tree")
174 }
175 
176 git_fsck()
177 {
178 	local testroot="$1"
179 	local repo="$2"
180 
181 	(cd $repo && git fsck --strict \
182 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
183 	ret=$?
184 	if [ $ret -ne 0 ]; then
185 		echo -n "git fsck: "
186 		cat $testroot/fsck.stderr
187 		echo "git fsck failed; leaving test data in $testroot"
188 		return 1
189 	fi
190 
191 	return 0
192 }
193 
194 make_test_tree()
195 {
196 	repo="$1"
197 
198 	echo alpha > $repo/alpha
199 	echo beta > $repo/beta
200 	mkdir $repo/gamma
201 	echo delta > $repo/gamma/delta
202 	mkdir $repo/epsilon
203 	echo zeta > $repo/epsilon/zeta
204 }
205 
206 make_single_file_repo()
207 {
208 	repo="$1"
209 	file="$2"
210 
211 	mkdir $repo
212 	git_init $repo
213 	echo "this is file $file" > $repo/$file
214 	(cd $repo && git add .)
215 	git_commit $repo -m "intialize $repo with file $file"
216 }
217 
218 get_loose_object_path()
219 {
220 	local repo="$1"
221 	local id="$2"
222 	local id0=`trim_obj_id 38 $id`
223 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
224 	echo "$repo/.git/objects/$id0/$idrest"
225 }
226 
227 get_blob_id()
228 {
229 	repo="$1"
230 	tree_path="$2"
231 	filename="$3"
232 
233 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
234 		cut -d' ' -f 1
235 }
236 
237 test_init()
238 {
239 	local testname="$1"
240 	local no_tree="$2"
241 	if [ -z "$testname" ]; then
242 		echo "No test name provided" >&2
243 		return 1
244 	fi
245 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
246 	mkdir $testroot/repo
247 	git_init $testroot/repo
248 	if [ -z "$no_tree" ]; then
249 		make_test_tree $testroot/repo
250 		(cd $repo && git add .)
251 		git_commit $testroot/repo -m "adding the test tree"
252 	fi
253 	touch $testroot/repo/.git/git-daemon-export-ok
254 	echo "$testroot"
255 }
256 
257 test_cleanup()
258 {
259 	local testroot="$1"
260 
261 	git_fsck $testroot $testroot/repo
262 	ret=$?
263 	if [ $ret -ne 0 ]; then
264 		return $ret
265 	fi
266 
267 	rm -rf "$testroot"
268 }
269 
270 test_parseargs()
271 {
272 	while getopts qr: flag; do
273 		case $flag in
274 		q)	export GOT_TEST_QUIET=1
275 			;;
276 		r)	export GOT_TEST_ROOT=$OPTARG
277 			;;
278 		?)	echo "Supported options:"
279 			echo "  -q: quiet mode"
280 			echo "  -r PATH: use PATH as test data root directory"
281 			exit 2
282 			;;
283 		esac
284 	done
285 } >&2
286 
287 run_test()
288 {
289 	testfunc="$1"
290 	if [ -z "$GOT_TEST_QUIET" ]; then
291 		echo -n "$testfunc "
292 	fi
293 	$testfunc
294 }
295 
296 test_done()
297 {
298 	local testroot="$1"
299 	local result="$2"
300 	if [ "$result" = "0" ]; then
301 		test_cleanup "$testroot" || return 1
302 		if [ -z "$GOT_TEST_QUIET" ]; then
303 			echo "ok"
304 		fi
305 	elif echo "$result" | grep -q "^xfail"; then
306 		# expected test failure; test reproduces an unfixed bug
307 		echo "$result"
308 		test_cleanup "$testroot" || return 1
309 	else
310 		echo "test failed; leaving test data in $testroot"
311 	fi
312 }