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