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 # Check to see if PLATFORM has a value.  PLATFORM is populated when running
34 # via `./configure && make` but this isn't guaranteed if an individual test is
35 # run directly, such as `regress/cmdline/tag.sh`.  In such cases, PLATFORM
36 # will be empty, but we still want to use it.  Since we test for non-linux
37 # values, only set PLATFORM if we're running on Linu so that the correct
38 # commands are used.
39 [ -z "$PLATFORM" -a "$(uname)" = "Linux" ] && PLATFORM="linux"
40 
41 [ "$(date -u -r 86400 +%F 2>/dev/null)" = 1970-01-02 ] || date()
42 {
43 	DATECMD="date"
44 	[ "$PLATFORM" != "linux" ] && {
45 		command -v "gdate" >/dev/null 2>&1 && {
46 			DATECMD="gdate"
47 		} || {
48 			echo "Couldn't find gdate is GNU coreutils installed?"
49 		}
50 	}
51 
52 	local flag r u
53 	while getopts r:u flag; do
54 		case $flag in
55 		r)	r=$OPTARG ;;
56 		u)	u=-u ;;
57 		?)	exit 1 ;;
58 		esac
59 	done
60 	shift $((OPTIND - 1))
61 	command "$DATECMD" $u ${r+-d"@$r"} "$@"
62 }
63 
64 sed()
65 {
66 	SEDCMD="sed"
67 
68 	# On non-linux systems, the sed command can happily accept "-i ''" as
69 	# a valid command to not save backup files for in-place edits.
70 	# However, on linux, "-i ''" would be treated as "-i" with a blank
71 	# argument, and hence, no file to edit in-place, which is an error.
72 	#
73 	# Therefore, scan the argument list and remove "-i ''", replacing it
74 	# with just "-i".
75 
76 	[ "$PLATFORM" = "linux" ] && {
77 		for w in "$@"
78 		do
79 			[ "$w" = "-i" ] && {
80 				seen=1
81 				continue
82 			}
83 
84 			[ "$seen" = "1" -a -z "$w" ] && {
85 				# Move past -i and ''
86 				shift 2
87 
88 				command "$SEDCMD" -i "$@"
89 				return
90 			}
91 		done
92 	}
93 	command "$SEDCMD" "$@"
94 }
95 
96 
97 git_init()
98 {
99 	git init -q "$1"
100 
101 	# Switch the default branch to match our test expectations if needed.
102 	# Only need to change HEAD since 'git init' did not create any refs.
103 	# Relying on implementation details of 'git init' is no problem for us.
104 	# We want to be alerted when Git changes fundamental assumptions such
105 	# as what an empty repository looks like and where the default branch
106 	# is set. In such cases Got's own tooling might well need to change
107 	# its behaviour, too, and our tests should fail.
108 	# TODO: Update all tests to assume 'main' instead of 'master' and
109 	# switch to main here, to match Got's own default.
110 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
111 }
112 
113 maybe_pack_repo()
114 {
115 	local repo="$1"
116 	if [ -n "$GOT_TEST_PACK" ]; then
117 		arg=""
118 		if [ "$GOT_TEST_PACK" = "ref-delta" ]; then
119 			arg="-D"
120 		fi
121 
122 		(cd $repo && gotadmin pack -a $arg > /dev/null)
123 		(cd $repo && gotadmin cleanup -a -q)
124 	fi
125 }
126 
127 git_commit()
128 {
129 	local repo="$1"
130 	shift
131 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
132 	maybe_pack_repo $repo
133 }
134 
135 git_rm()
136 {
137 	local repo="$1"
138 	shift
139 	(cd $repo && git rm -q "$@")
140 }
141 
142 git_show_head()
143 {
144 	local repo="$1"
145 	(cd $repo && git show --no-patch --pretty='format:%H')
146 }
147 
148 git_show_branch_head()
149 {
150 	local repo="$1"
151 	local branch="$2"
152 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
153 }
154 
155 
156 git_show_author_time()
157 {
158 	local repo="$1"
159 	local object="$2"
160 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
161 }
162 
163 git_show_tagger_time()
164 {
165 	local repo="$1"
166 	local tag="$2"
167 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
168 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
169 }
170 
171 git_show_parent_commit()
172 {
173 	local repo="$1"
174 	local commit="$2"
175 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
176 }
177 
178 git_show_tree()
179 {
180 	local repo="$1"
181 	(cd $repo && git show --no-patch --pretty='format:%T')
182 }
183 
184 trim_obj_id()
185 {
186 	local trimcount=$1
187 	local id=$2
188 
189 	local pat=""
190 	while [ "$trimcount" -gt 0 ]; do
191 		pat="[0-9a-f]$pat"
192 		trimcount=$((trimcount - 1))
193 	done
194 
195 	echo ${id%$pat}
196 }
197 
198 git_commit_tree()
199 {
200 	local repo="$1"
201 	local msg="$2"
202 	local tree="$3"
203 	(cd $repo && git commit-tree -m "$msg" "$tree")
204 }
205 
206 git_fsck()
207 {
208 	local testroot="$1"
209 	local repo="$2"
210 
211 	(cd $repo && git fsck --strict \
212 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
213 	ret=$?
214 	if [ $ret -ne 0 ]; then
215 		echo -n "git fsck: "
216 		cat $testroot/fsck.stderr
217 		echo "git fsck failed; leaving test data in $testroot"
218 		return 1
219 	fi
220 
221 	return 0
222 }
223 
224 make_test_tree()
225 {
226 	repo="$1"
227 
228 	echo alpha > $repo/alpha
229 	echo beta > $repo/beta
230 	mkdir $repo/gamma
231 	echo delta > $repo/gamma/delta
232 	mkdir $repo/epsilon
233 	echo zeta > $repo/epsilon/zeta
234 }
235 
236 make_single_file_repo()
237 {
238 	repo="$1"
239 	file="$2"
240 
241 	mkdir $repo
242 	git_init $repo
243 	echo "this is file $file" > $repo/$file
244 	(cd $repo && git add .)
245 	git_commit $repo -m "intialize $repo with file $file"
246 }
247 
248 get_loose_object_path()
249 {
250 	local repo="$1"
251 	local id="$2"
252 	local id0=`trim_obj_id 38 $id`
253 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
254 	echo "$repo/.git/objects/$id0/$idrest"
255 }
256 
257 get_blob_id()
258 {
259 	repo="$1"
260 	tree_path="$2"
261 	filename="$3"
262 
263 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
264 		cut -d' ' -f 1
265 }
266 
267 test_init()
268 {
269 	local testname="$1"
270 	local no_tree="$2"
271 	if [ -z "$testname" ]; then
272 		echo "No test name provided" >&2
273 		return 1
274 	fi
275 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
276 	mkdir $testroot/repo
277 	git_init $testroot/repo
278 	if [ -z "$no_tree" ]; then
279 		make_test_tree $testroot/repo
280 		(cd $repo && git add .)
281 		git_commit $testroot/repo -m "adding the test tree"
282 	fi
283 	touch $testroot/repo/.git/git-daemon-export-ok
284 	echo "$testroot"
285 }
286 
287 test_cleanup()
288 {
289 	local testroot="$1"
290 
291 	git_fsck $testroot $testroot/repo
292 	ret=$?
293 	if [ $ret -ne 0 ]; then
294 		return $ret
295 	fi
296 
297 	rm -rf "$testroot"
298 }
299 
300 test_parseargs()
301 {
302 	while getopts qr: flag; do
303 		case $flag in
304 		q)	export GOT_TEST_QUIET=1
305 			;;
306 		r)	export GOT_TEST_ROOT=${OPTARG%/}
307 			;;
308 		?)	echo "Supported options:"
309 			echo "  -q: quiet mode"
310 			echo "  -r PATH: use PATH as test data root directory"
311 			exit 2
312 			;;
313 		esac
314 	done
315 	shift $(($OPTIND - 1))
316 	regress_run_only="$@"
317 } >&2
318 
319 run_test()
320 {
321 	testfunc="$1"
322 
323 	if [ -n "$regress_run_only" ]; then
324 		case "$regress_run_only" in
325 		*$testfunc*) ;;
326 		*) return ;;
327 		esac
328 	fi
329 
330 	if [ -z "$GOT_TEST_QUIET" ]; then
331 		echo -n "$testfunc "
332 	fi
333 	$testfunc
334 }
335 
336 test_done()
337 {
338 	local testroot="$1"
339 	local result="$2"
340 	if [ "$result" = "0" ]; then
341 		test_cleanup "$testroot" || return 1
342 		if [ -z "$GOT_TEST_QUIET" ]; then
343 			echo "ok"
344 		fi
345 	elif echo "$result" | grep -q "^xfail"; then
346 		# expected test failure; test reproduces an unfixed bug
347 		echo "$result"
348 		test_cleanup "$testroot" || return 1
349 	else
350 		echo "test failed; leaving test data in $testroot"
351 	fi
352 }