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 export GIT_AUTHOR_NAME="Flan Hacker"
18 export GIT_AUTHOR_EMAIL="flan_hacker@openbsd.org"
19 export GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"
20 export GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"
21 export GOT_AUTHOR="$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"
22 export GOT_AUTHOR_8="flan_hac"
23 export GOT_AUTHOR_11="flan_hacker"
24 export GOT_LOG_DEFAULT_LIMIT=0
25 export GOT_TEST_ROOT="/tmp"
26 export GOT_IGNORE_GITCONFIG=1
27 
28 export MALLOC_OPTIONS=S
29 
30 # Check to see if PLATFORM has a value.  PLATFORM is populated when running
31 # via `./configure && make` but this isn't guaranteed if an individual test is
32 # run directly, such as `regress/cmdline/tag.sh`.  In such cases, PLATFORM
33 # will be empty, but we still want to use it.  Since we test for non-linux
34 # values, only set PLATFORM if we're running on Linu so that the correct
35 # commands are used.
36 [ -z "$PLATFORM" -a "$(uname)" = "Linux" ] && PLATFORM="linux"
37 
38 date()
39 {
40 	DATECMD="date"
41 	[ "$PLATFORM" != "linux" ] && {
42 		command -v "gdate" >/dev/null 2>&1 && {
43 			DATECMD="gdate"
44 		} || {
45 			echo "Couldn't find gdate is GNU coreutils installed?"
46 		}
47 	}
48 	command "$DATECMD" "$@"
49 }
50 
51 ln()
52 {
53 	LNCMD="ln"
54 	[ "$PLATFORM" != "linux" ] && {
55 		command -v "gln" >/dev/null 2>&1 && {
56 			LNCMD="gln"
57 		} || {
58 			echo "Couldn't find gln is GNU coreutils installed?"
59 		}
60 	}
61 	command "$LNCMD" "$@"
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 		(cd $repo && git repack -a -q)
118 	fi
119 }
120 
121 git_commit()
122 {
123 	local repo="$1"
124 	shift
125 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
126 	maybe_pack_repo $repo
127 }
128 
129 git_rm()
130 {
131 	local repo="$1"
132 	shift
133 	(cd $repo && git rm -q "$@")
134 }
135 
136 git_show_head()
137 {
138 	local repo="$1"
139 	(cd $repo && git show --no-patch --pretty='format:%H')
140 }
141 
142 git_show_branch_head()
143 {
144 	local repo="$1"
145 	local branch="$2"
146 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
147 }
148 
149 
150 git_show_author_time()
151 {
152 	local repo="$1"
153 	local object="$2"
154 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
155 }
156 
157 git_show_tagger_time()
158 {
159 	local repo="$1"
160 	local tag="$2"
161 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
162 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
163 }
164 
165 git_show_parent_commit()
166 {
167 	local repo="$1"
168 	local commit="$2"
169 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
170 }
171 
172 git_show_tree()
173 {
174 	local repo="$1"
175 	(cd $repo && git show --no-patch --pretty='format:%T')
176 }
177 
178 trim_obj_id()
179 {
180 	local trimcount=$1
181 	local id=$2
182 
183 	local pat=""
184 	while [ "$trimcount" -gt 0 ]; do
185 		pat="[0-9a-f]$pat"
186 		trimcount=$((trimcount - 1))
187 	done
188 
189 	echo ${id%$pat}
190 }
191 
192 git_commit_tree()
193 {
194 	local repo="$1"
195 	local msg="$2"
196 	local tree="$3"
197 	(cd $repo && git commit-tree -m "$msg" "$tree")
198 }
199 
200 git_fsck()
201 {
202 	local testroot="$1"
203 	local repo="$2"
204 
205 	(cd $repo && git fsck --strict \
206 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
207 	ret=$?
208 	if [ $ret -ne 0 ]; then
209 		echo -n "git fsck: "
210 		cat $testroot/fsck.stderr
211 		echo "git fsck failed; leaving test data in $testroot"
212 		return 1
213 	fi
214 
215 	return 0
216 }
217 
218 make_test_tree()
219 {
220 	repo="$1"
221 
222 	echo alpha > $repo/alpha
223 	echo beta > $repo/beta
224 	mkdir $repo/gamma
225 	echo delta > $repo/gamma/delta
226 	mkdir $repo/epsilon
227 	echo zeta > $repo/epsilon/zeta
228 }
229 
230 make_single_file_repo()
231 {
232 	repo="$1"
233 	file="$2"
234 
235 	mkdir $repo
236 	git_init $repo
237 	echo "this is file $file" > $repo/$file
238 	(cd $repo && git add .)
239 	git_commit $repo -m "intialize $repo with file $file"
240 }
241 
242 get_loose_object_path()
243 {
244 	local repo="$1"
245 	local id="$2"
246 	local id0=`trim_obj_id 38 $id`
247 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
248 	echo "$repo/.git/objects/$id0/$idrest"
249 }
250 
251 get_blob_id()
252 {
253 	repo="$1"
254 	tree_path="$2"
255 	filename="$3"
256 
257 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
258 		cut -d' ' -f 1
259 }
260 
261 test_init()
262 {
263 	local testname="$1"
264 	local no_tree="$2"
265 	if [ -z "$testname" ]; then
266 		echo "No test name provided" >&2
267 		return 1
268 	fi
269 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
270 	mkdir $testroot/repo
271 	git_init $testroot/repo
272 	if [ -z "$no_tree" ]; then
273 		make_test_tree $testroot/repo
274 		(cd $repo && git add .)
275 		git_commit $testroot/repo -m "adding the test tree"
276 	fi
277 	touch $testroot/repo/.git/git-daemon-export-ok
278 	echo "$testroot"
279 }
280 
281 test_cleanup()
282 {
283 	local testroot="$1"
284 
285 	git_fsck $testroot $testroot/repo
286 	ret=$?
287 	if [ $ret -ne 0 ]; then
288 		return $ret
289 	fi
290 
291 	rm -rf "$testroot"
292 }
293 
294 test_parseargs()
295 {
296 	while getopts qr: flag; do
297 		case $flag in
298 		q)	export GOT_TEST_QUIET=1
299 			;;
300 		r)	export GOT_TEST_ROOT=$OPTARG
301 			;;
302 		?)	echo "Supported options:"
303 			echo "  -q: quiet mode"
304 			echo "  -r PATH: use PATH as test data root directory"
305 			exit 2
306 			;;
307 		esac
308 	done
309 } >&2
310 
311 run_test()
312 {
313 	testfunc="$1"
314 	if [ -z "$GOT_TEST_QUIET" ]; then
315 		echo -n "$testfunc "
316 	fi
317 	$testfunc
318 }
319 
320 test_done()
321 {
322 	local testroot="$1"
323 	local result="$2"
324 	if [ "$result" = "0" ]; then
325 		test_cleanup "$testroot" || return 1
326 		if [ -z "$GOT_TEST_QUIET" ]; then
327 			echo "ok"
328 		fi
329 	elif echo "$result" | grep -q "^xfail"; then
330 		# expected test failure; test reproduces an unfixed bug
331 		echo "$result"
332 		test_cleanup "$testroot" || return 1
333 	else
334 		echo "test failed; leaving test data in $testroot"
335 	fi
336 }