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 # Check to see if PLATFORM has a value.  PLATFORM is populated when running
36 # via `./configure && make` but this isn't guaranteed if an individual test is
37 # run directly, such as `regress/cmdline/tag.sh`.  In such cases, PLATFORM
38 # will be empty, but we still want to use it.  Since we test for non-linux
39 # values, only set PLATFORM if we're running on Linu so that the correct
40 # commands are used.
41 [ -z "$PLATFORM" -a "$(uname)" = "Linux" ] && PLATFORM="linux"
42 
43 [ "$(date -u -r 86400 +%F 2>/dev/null)" = 1970-01-02 ] || date()
44 {
45 	DATECMD="date"
46 	[ "$PLATFORM" != "linux" ] && {
47 		command -v "gdate" >/dev/null 2>&1 && {
48 			DATECMD="gdate"
49 		} || {
50 			echo "Couldn't find gdate is GNU coreutils installed?"
51 		}
52 	}
53 
54 	local flag r u
55 	while getopts r:u flag; do
56 		case $flag in
57 		r)	r=$OPTARG ;;
58 		u)	u=-u ;;
59 		?)	exit 1 ;;
60 		esac
61 	done
62 	shift $((OPTIND - 1))
63 	command "$DATECMD" $u ${r+-d"@$r"} "$@"
64 }
65 
66 sed()
67 {
68 	SEDCMD="sed"
69 
70 	# On non-linux systems, the sed command can happily accept "-i ''" as
71 	# a valid command to not save backup files for in-place edits.
72 	# However, on linux, "-i ''" would be treated as "-i" with a blank
73 	# argument, and hence, no file to edit in-place, which is an error.
74 	#
75 	# Therefore, scan the argument list and remove "-i ''", replacing it
76 	# with just "-i".
77 
78 	[ "$PLATFORM" = "linux" ] && {
79 		for w in "$@"
80 		do
81 			[ "$w" = "-i" ] && {
82 				seen=1
83 				continue
84 			}
85 
86 			[ "$seen" = "1" -a -z "$w" ] && {
87 				# Move past -i and ''
88 				shift 2
89 
90 				command "$SEDCMD" -i "$@"
91 				return
92 			}
93 		done
94 	}
95 	command "$SEDCMD" "$@"
96 }
97 
98 
99 git_init()
100 {
101 	git init -q "$1"
102 
103 	# Switch the default branch to match our test expectations if needed.
104 	# Only need to change HEAD since 'git init' did not create any refs.
105 	# Relying on implementation details of 'git init' is no problem for us.
106 	# We want to be alerted when Git changes fundamental assumptions such
107 	# as what an empty repository looks like and where the default branch
108 	# is set. In such cases Got's own tooling might well need to change
109 	# its behaviour, too, and our tests should fail.
110 	# TODO: Update all tests to assume 'main' instead of 'master' and
111 	# switch to main here, to match Got's own default.
112 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
113 }
114 
115 maybe_pack_repo()
116 {
117 	local repo="$1"
118 	if [ -n "$GOT_TEST_PACK" ]; then
119 		arg=""
120 		if [ "$GOT_TEST_PACK" = "ref-delta" ]; then
121 			arg="-D"
122 		fi
123 
124 		(cd $repo && gotadmin pack -a $arg > /dev/null)
125 		(cd $repo && gotadmin cleanup -a -q)
126 	fi
127 }
128 
129 git_commit()
130 {
131 	local repo="$1"
132 	shift
133 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
134 	maybe_pack_repo $repo
135 }
136 
137 git_rm()
138 {
139 	local repo="$1"
140 	shift
141 	(cd $repo && git rm -q "$@")
142 }
143 
144 git_show_head()
145 {
146 	local repo="$1"
147 	(cd $repo && git show --no-patch --pretty='format:%H')
148 }
149 
150 git_show_branch_head()
151 {
152 	local repo="$1"
153 	local branch="$2"
154 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
155 }
156 
157 
158 git_show_author_time()
159 {
160 	local repo="$1"
161 	local object="$2"
162 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
163 }
164 
165 git_show_tagger_time()
166 {
167 	local repo="$1"
168 	local tag="$2"
169 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
170 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
171 }
172 
173 git_show_parent_commit()
174 {
175 	local repo="$1"
176 	local commit="$2"
177 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
178 }
179 
180 git_show_tree()
181 {
182 	local repo="$1"
183 	(cd $repo && git show --no-patch --pretty='format:%T')
184 }
185 
186 trim_obj_id()
187 {
188 	local trimcount=$1
189 	local id=$2
190 
191 	local pat=""
192 	while [ "$trimcount" -gt 0 ]; do
193 		pat="[0-9a-f]$pat"
194 		trimcount=$((trimcount - 1))
195 	done
196 
197 	echo ${id%$pat}
198 }
199 
200 git_commit_tree()
201 {
202 	local repo="$1"
203 	local msg="$2"
204 	local tree="$3"
205 	(cd $repo && git commit-tree -m "$msg" "$tree")
206 }
207 
208 git_fsck()
209 {
210 	local testroot="$1"
211 	local repo="$2"
212 
213 	(cd $repo && git fsck --strict \
214 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
215 	ret=$?
216 	if [ $ret -ne 0 ]; then
217 		echo -n "git fsck: "
218 		cat $testroot/fsck.stderr
219 		echo "git fsck failed; leaving test data in $testroot"
220 		return 1
221 	fi
222 
223 	return 0
224 }
225 
226 make_test_tree()
227 {
228 	repo="$1"
229 
230 	echo alpha > $repo/alpha
231 	echo beta > $repo/beta
232 	mkdir $repo/gamma
233 	echo delta > $repo/gamma/delta
234 	mkdir $repo/epsilon
235 	echo zeta > $repo/epsilon/zeta
236 }
237 
238 make_single_file_repo()
239 {
240 	repo="$1"
241 	file="$2"
242 
243 	mkdir $repo
244 	git_init $repo
245 	echo "this is file $file" > $repo/$file
246 	(cd $repo && git add .)
247 	git_commit $repo -m "intialize $repo with file $file"
248 }
249 
250 get_loose_object_path()
251 {
252 	local repo="$1"
253 	local id="$2"
254 	local id0=`trim_obj_id 38 $id`
255 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
256 	echo "$repo/.git/objects/$id0/$idrest"
257 }
258 
259 get_blob_id()
260 {
261 	repo="$1"
262 	tree_path="$2"
263 	filename="$3"
264 
265 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
266 		cut -d' ' -f 1
267 }
268 
269 test_init()
270 {
271 	local testname="$1"
272 	local no_tree="$2"
273 	if [ -z "$testname" ]; then
274 		echo "No test name provided" >&2
275 		return 1
276 	fi
277 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
278 	mkdir $testroot/repo
279 	git_init $testroot/repo
280 	if [ -z "$no_tree" ]; then
281 		make_test_tree $testroot/repo
282 		(cd $repo && git add .)
283 		git_commit $testroot/repo -m "adding the test tree"
284 	fi
285 	touch $testroot/repo/.git/git-daemon-export-ok
286 	echo "$testroot"
287 }
288 
289 test_cleanup()
290 {
291 	local testroot="$1"
292 
293 	git_fsck $testroot $testroot/repo
294 	ret=$?
295 	if [ $ret -ne 0 ]; then
296 		return $ret
297 	fi
298 
299 	rm -rf "$testroot"
300 }
301 
302 test_parseargs()
303 {
304 	while getopts qr: flag; do
305 		case $flag in
306 		q)	export GOT_TEST_QUIET=1
307 			;;
308 		r)	export GOT_TEST_ROOT=${OPTARG%/}
309 			;;
310 		?)	echo "Supported options:"
311 			echo "  -q: quiet mode"
312 			echo "  -r PATH: use PATH as test data root directory"
313 			exit 2
314 			;;
315 		esac
316 	done
317 	shift $(($OPTIND - 1))
318 	regress_run_only="$@"
319 } >&2
320 
321 run_test()
322 {
323 	testfunc="$1"
324 
325 	if [ -n "$regress_run_only" ]; then
326 		case "$regress_run_only" in
327 		*$testfunc*) ;;
328 		*) return ;;
329 		esac
330 	fi
331 
332 	if [ -z "$GOT_TEST_QUIET" ]; then
333 		echo -n "$testfunc "
334 	fi
335 	$testfunc
336 }
337 
338 test_done()
339 {
340 	local testroot="$1"
341 	local result="$2"
342 	if [ "$result" = "0" ]; then
343 		test_cleanup "$testroot" || return 1
344 		if [ -z "$GOT_TEST_QUIET" ]; then
345 			echo "ok"
346 		fi
347 	elif echo "$result" | grep -q "^xfail"; then
348 		# expected test failure; test reproduces an unfixed bug
349 		echo "$result"
350 		test_cleanup "$testroot" || return 1
351 	else
352 		echo "test failed; leaving test data in $testroot"
353 	fi
354 }