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