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 regress_run_only=""
18 
19 export GIT_AUTHOR_NAME="Flan Hacker"
20 export GIT_AUTHOR_EMAIL="flan_hacker@openbsd.org"
21 export GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"
22 export GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"
23 export GOT_AUTHOR="$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"
24 export GOT_AUTHOR_8="flan_hac"
25 export GOT_AUTHOR_11="flan_hacker"
26 export GOT_LOG_DEFAULT_LIMIT=0
27 export GOT_TEST_ROOT="/tmp"
28 export GOT_IGNORE_GITCONFIG=1
29 export GOT_VERSION_STR=`got --version | cut -d ' ' -f2`
30 
31 export LC_ALL=C
32 
33 export MALLOC_OPTIONS=S
34 
35 if [ "$(date -u -r 86400 +%F 2>/dev/null)" != 1970-01-02 ]; then
36 	DATECMD=
37 	for p in date gdate; do
38 		if [ "$($p -u -d @86400 +%F 2>/dev/null)" = 1970-01-02 ]; then
39 			DATECMD=$p
40 			break
41 		fi
42 	done
43 	if [ -z "$DATECMD" ]; then
44 		echo "Couldn't find gdate, is GNU coreutils installed?" >&2
45 		exit 1
46 	fi
47 
48 	date()
49 	{
50 		local flag r u
51 		while getopts r:u flag; do
52 			case $flag in
53 			r)	r=$OPTARG ;;
54 			u)	u=-u ;;
55 			?)	exit 1 ;;
56 			esac
57 		done
58 		shift $((OPTIND - 1))
59 		command "$DATECMD" $u ${r+-d"@$r"} "$@"
60 	}
61 fi
62 
63 git_init()
64 {
65 	git init -q "$1"
66 
67 	# Switch the default branch to match our test expectations if needed.
68 	# Only need to change HEAD since 'git init' did not create any refs.
69 	# Relying on implementation details of 'git init' is no problem for us.
70 	# We want to be alerted when Git changes fundamental assumptions such
71 	# as what an empty repository looks like and where the default branch
72 	# is set. In such cases Got's own tooling might well need to change
73 	# its behaviour, too, and our tests should fail.
74 	# TODO: Update all tests to assume 'main' instead of 'master' and
75 	# switch to main here, to match Got's own default.
76 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
77 }
78 
79 maybe_pack_repo()
80 {
81 	local repo="$1"
82 	if [ -n "$GOT_TEST_PACK" ]; then
83 		arg=""
84 		if [ "$GOT_TEST_PACK" = "ref-delta" ]; then
85 			arg="-D"
86 		fi
87 
88 		(cd $repo && gotadmin pack -a $arg > /dev/null)
89 		(cd $repo && gotadmin cleanup -a -q)
90 	fi
91 }
92 
93 git_commit()
94 {
95 	local repo="$1"
96 	shift
97 	git -C $repo commit --author="$GOT_AUTHOR" -q -a "$@"
98 	maybe_pack_repo $repo
99 }
100 
101 git_rm()
102 {
103 	local repo="$1"
104 	shift
105 	git -C $repo rm -q "$@"
106 }
107 
108 git_rmdir()
109 {
110 	local repo="$1"
111 	shift
112 	git -C $repo rm -q -r "$@"
113 }
114 
115 git_show_head()
116 {
117 	local repo="$1"
118 	git -C $repo show --no-patch --pretty='format:%H'
119 }
120 
121 git_show_branch_head()
122 {
123 	local repo="$1"
124 	local branch="$2"
125 	git -C $repo show --no-patch --pretty='format:%H' $branch
126 }
127 
128 
129 git_show_author_time()
130 {
131 	local repo="$1"
132 	local object="$2"
133 	git -C $repo show --no-patch --pretty='format:%at' $object
134 }
135 
136 git_show_tagger_time()
137 {
138 	local repo="$1"
139 	local tag="$2"
140 	git -C $repo cat-file tag $tag | grep ^tagger | \
141 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2
142 }
143 
144 git_show_parent_commit()
145 {
146 	local repo="$1"
147 	local commit="$2"
148 	git -C $repo show --no-patch --pretty='format:%P' $commit
149 }
150 
151 git_show_tree()
152 {
153 	local repo="$1"
154 	git -C $repo show --no-patch --pretty='format:%T'
155 }
156 
157 trim_obj_id()
158 {
159 	local trimcount=$1
160 	local id=$2
161 
162 	local pat=""
163 	while [ "$trimcount" -gt 0 ]; do
164 		pat="[0-9a-f]$pat"
165 		trimcount=$((trimcount - 1))
166 	done
167 
168 	echo ${id%$pat}
169 }
170 
171 pop_idx()
172 {
173 	shift "$1"
174 	printf '%s' "${1:-index-out-of-bounds}"
175 }
176 
177 git_commit_tree()
178 {
179 	local repo="$1"
180 	local msg="$2"
181 	local tree="$3"
182 	git -C $repo commit-tree -m "$msg" "$tree"
183 }
184 
185 git_fsck()
186 {
187 	local testroot="$1"
188 	local repo="$2"
189 
190 	git -C $repo fsck --strict \
191 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr
192 	ret=$?
193 	if [ $ret -ne 0 ]; then
194 		echo -n "git fsck: "
195 		cat $testroot/fsck.stderr
196 		echo "git fsck failed; leaving test data in $testroot"
197 		return 1
198 	fi
199 
200 	return 0
201 }
202 
203 make_test_tree()
204 {
205 	repo="$1"
206 
207 	echo alpha > $repo/alpha
208 	echo beta > $repo/beta
209 	mkdir $repo/gamma
210 	echo delta > $repo/gamma/delta
211 	mkdir $repo/epsilon
212 	echo zeta > $repo/epsilon/zeta
213 }
214 
215 make_single_file_repo()
216 {
217 	repo="$1"
218 	file="$2"
219 
220 	mkdir $repo
221 	git_init $repo
222 	echo "this is file $file" > $repo/$file
223 	git -C $repo add .
224 	git_commit $repo -m "intialize $repo with file $file"
225 }
226 
227 get_loose_object_path()
228 {
229 	local repo="$1"
230 	local id="$2"
231 	local id0=`trim_obj_id 38 $id`
232 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
233 	echo "$repo/.git/objects/$id0/$idrest"
234 }
235 
236 get_blob_id()
237 {
238 	repo="$1"
239 	tree_path="$2"
240 	filename="$3"
241 
242 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
243 		cut -d' ' -f 1
244 }
245 
246 test_init()
247 {
248 	local testname="$1"
249 	local no_tree="$2"
250 	if [ -z "$testname" ]; then
251 		echo "No test name provided" >&2
252 		return 1
253 	fi
254 	local testroot=`mktemp -d \
255 	    "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXXXX"`
256 	mkdir $testroot/repo
257 	git_init $testroot/repo
258 	if [ -z "$no_tree" ]; then
259 		make_test_tree $testroot/repo
260 		git -C $repo add .
261 		git_commit $testroot/repo -m "adding the test tree"
262 	fi
263 	touch $testroot/repo/.git/git-daemon-export-ok
264 	echo "$testroot"
265 }
266 
267 test_cleanup()
268 {
269 	local testroot="$1"
270 
271 	git_fsck $testroot $testroot/repo
272 	ret=$?
273 	if [ $ret -ne 0 ]; then
274 		return $ret
275 	fi
276 
277 	rm -rf "$testroot"
278 }
279 
280 test_parseargs()
281 {
282 	while getopts qr: flag; do
283 		case $flag in
284 		q)	export GOT_TEST_QUIET=1
285 			;;
286 		r)	export GOT_TEST_ROOT=${OPTARG%/}
287 			;;
288 		?)	echo "Supported options:"
289 			echo "  -q: quiet mode"
290 			echo "  -r PATH: use PATH as test data root directory"
291 			exit 2
292 			;;
293 		esac
294 	done
295 	shift $(($OPTIND - 1))
296 	regress_run_only="$@"
297 } >&2
298 
299 run_test()
300 {
301 	testfunc="$1"
302 
303 	if [ -n "$regress_run_only" ]; then
304 		case "$regress_run_only" in
305 		*$testfunc*) ;;
306 		*) return ;;
307 		esac
308 	fi
309 
310 	if [ -z "$GOT_TEST_QUIET" ]; then
311 		echo -n "$testfunc "
312 	fi
313 	$testfunc
314 }
315 
316 test_done()
317 {
318 	local testroot="$1"
319 	local result="$2"
320 	if [ "$result" = "0" ]; then
321 		test_cleanup "$testroot" || return 1
322 		if [ -z "$GOT_TEST_QUIET" ]; then
323 			echo "ok"
324 		fi
325 	elif echo "$result" | grep -q "^xfail"; then
326 		# expected test failure; test reproduces an unfixed bug
327 		echo "$result"
328 		test_cleanup "$testroot" || return 1
329 	else
330 		echo "test failed; leaving test data in $testroot"
331 	fi
332 }