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 
27 export MALLOC_OPTIONS=S
28 
29 # Check to see if PLATFORM has a value.  PLATFORM is populated when running
30 # via `./configure && make` but this isn't guaranteed if an individual test is
31 # run directly, such as `regress/cmdline/tag.sh`.  In such cases, PLATFORM
32 # will be empty, but we still want to use it.  Since we test for non-linux
33 # values, only set PLATFORM if we're running on Linu so that the correct
34 # commands are used.
35 [ -z "$PLATFORM" -a "$(uname)" = "Linux" ] && PLATFORM="linux"
36 
37 date()
38 {
39 	DATECMD="date"
40 	[ "$PLATFORM" != "linux" ] && {
41 		command -v "gdate" >/dev/null 2>&1 && {
42 			DATECMD="gdate"
43 		} || {
44 			echo "Couldn't find gdate is GNU coreutils installed?"
45 		}
46 	}
47 	command "$DATECMD" "$@"
48 }
49 
50 ln()
51 {
52 	LNCMD="ln"
53 	[ "$PLATFORM" != "linux" ] && {
54 		command -v "gln" >/dev/null 2>&1 && {
55 			LNCMD="gln"
56 		} || {
57 			echo "Couldn't find gln is GNU coreutils installed?"
58 		}
59 	}
60 	command "$LNCMD" "$@"
61 }
62 
63 sed()
64 {
65 	SEDCMD="sed"
66 
67 	# On non-linux systems, the sed command can happily accept "-i ''" as
68 	# a valid command to not save backup files for in-place edits.
69 	# However, on linux, "-i ''" would be treated as "-i" with a blank
70 	# argument, and hence, no file to edit in-place, which is an error.
71 	#
72 	# Therefore, scan the argument list and remove "-i ''", replacing it
73 	# with just "-i".
74 
75 	[ "$PLATFORM" = "linux" ] && {
76 		for w in "$@"
77 		do
78 			[ "$w" = "-i" ] && {
79 				seen=1
80 				continue
81 			}
82 
83 			[ "$seen" = "1" -a -z "$w" ] && {
84 				# Move past -i and ''
85 				shift 2
86 
87 				command "$SEDCMD" -i "$@"
88 				return
89 			}
90 		done
91 	}
92 	command "$SEDCMD" "$@"
93 }
94 
95 
96 git_init()
97 {
98 	git init -q "$1"
99 
100 	# Switch the default branch to match our test expectations if needed.
101 	# Only need to change HEAD since 'git init' did not create any refs.
102 	# Relying on implementation details of 'git init' is no problem for us.
103 	# We want to be alerted when Git changes fundamental assumptions such
104 	# as what an empty repository looks like and where the default branch
105 	# is set. In such cases Got's own tooling might well need to change
106 	# its behaviour, too, and our tests should fail.
107 	# TODO: Update all tests to assume 'main' instead of 'master' and
108 	# switch to main here, to match Got's own default.
109 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
110 }
111 
112 maybe_pack_repo()
113 {
114 	local repo="$1"
115 	if [ -n "$GOT_TEST_PACK" ]; then
116 		(cd $repo && git repack -a -q)
117 	fi
118 }
119 
120 git_commit()
121 {
122 	local repo="$1"
123 	shift
124 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
125 	maybe_pack_repo $repo
126 }
127 
128 git_rm()
129 {
130 	local repo="$1"
131 	shift
132 	(cd $repo && git rm -q "$@")
133 }
134 
135 git_show_head()
136 {
137 	local repo="$1"
138 	(cd $repo && git show --no-patch --pretty='format:%H')
139 }
140 
141 git_show_branch_head()
142 {
143 	local repo="$1"
144 	local branch="$2"
145 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
146 }
147 
148 
149 git_show_author_time()
150 {
151 	local repo="$1"
152 	local object="$2"
153 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
154 }
155 
156 git_show_tagger_time()
157 {
158 	local repo="$1"
159 	local tag="$2"
160 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
161 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
162 }
163 
164 git_show_parent_commit()
165 {
166 	local repo="$1"
167 	local commit="$2"
168 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
169 }
170 
171 git_show_tree()
172 {
173 	local repo="$1"
174 	(cd $repo && git show --no-patch --pretty='format:%T')
175 }
176 
177 trim_obj_id()
178 {
179 	local trimcount=$1
180 	local id=$2
181 
182 	local pat=""
183 	while [ "$trimcount" -gt 0 ]; do
184 		pat="[0-9a-f]$pat"
185 		trimcount=$((trimcount - 1))
186 	done
187 
188 	echo ${id%$pat}
189 }
190 
191 git_commit_tree()
192 {
193 	local repo="$1"
194 	local msg="$2"
195 	local tree="$3"
196 	(cd $repo && git commit-tree -m "$msg" "$tree")
197 }
198 
199 git_fsck()
200 {
201 	local testroot="$1"
202 	local repo="$2"
203 
204 	(cd $repo && git fsck --strict \
205 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
206 	ret=$?
207 	if [ $ret -ne 0 ]; then
208 		echo -n "git fsck: "
209 		cat $testroot/fsck.stderr
210 		echo "git fsck failed; leaving test data in $testroot"
211 		return 1
212 	fi
213 
214 	return 0
215 }
216 
217 make_test_tree()
218 {
219 	repo="$1"
220 
221 	echo alpha > $repo/alpha
222 	echo beta > $repo/beta
223 	mkdir $repo/gamma
224 	echo delta > $repo/gamma/delta
225 	mkdir $repo/epsilon
226 	echo zeta > $repo/epsilon/zeta
227 }
228 
229 make_single_file_repo()
230 {
231 	repo="$1"
232 	file="$2"
233 
234 	mkdir $repo
235 	git_init $repo
236 	echo "this is file $file" > $repo/$file
237 	(cd $repo && git add .)
238 	git_commit $repo -m "intialize $repo with file $file"
239 }
240 
241 get_loose_object_path()
242 {
243 	local repo="$1"
244 	local id="$2"
245 	local id0=`trim_obj_id 38 $id`
246 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
247 	echo "$repo/.git/objects/$id0/$idrest"
248 }
249 
250 get_blob_id()
251 {
252 	repo="$1"
253 	tree_path="$2"
254 	filename="$3"
255 
256 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
257 		cut -d' ' -f 1
258 }
259 
260 test_init()
261 {
262 	local testname="$1"
263 	local no_tree="$2"
264 	if [ -z "$testname" ]; then
265 		echo "No test name provided" >&2
266 		return 1
267 	fi
268 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
269 	mkdir $testroot/repo
270 	git_init $testroot/repo
271 	if [ -z "$no_tree" ]; then
272 		make_test_tree $testroot/repo
273 		(cd $repo && git add .)
274 		git_commit $testroot/repo -m "adding the test tree"
275 	fi
276 	touch $testroot/repo/.git/git-daemon-export-ok
277 	echo "$testroot"
278 }
279 
280 test_cleanup()
281 {
282 	local testroot="$1"
283 
284 	git_fsck $testroot $testroot/repo
285 	ret=$?
286 	if [ $ret -ne 0 ]; then
287 		return $ret
288 	fi
289 
290 	rm -rf "$testroot"
291 }
292 
293 test_parseargs()
294 {
295 	while getopts qr: flag; do
296 		case $flag in
297 		q)	export GOT_TEST_QUIET=1
298 			;;
299 		r)	export GOT_TEST_ROOT=$OPTARG
300 			;;
301 		?)	echo "Supported options:"
302 			echo "  -q: quiet mode"
303 			echo "  -r PATH: use PATH as test data root directory"
304 			exit 2
305 			;;
306 		esac
307 	done
308 } >&2
309 
310 run_test()
311 {
312 	testfunc="$1"
313 	if [ -z "$GOT_TEST_QUIET" ]; then
314 		echo -n "$testfunc "
315 	fi
316 	$testfunc
317 }
318 
319 test_done()
320 {
321 	local testroot="$1"
322 	local result="$2"
323 	if [ "$result" = "0" ]; then
324 		test_cleanup "$testroot" || return 1
325 		if [ -z "$GOT_TEST_QUIET" ]; then
326 			echo "ok"
327 		fi
328 	elif echo "$result" | grep -q "^xfail"; then
329 		# expected test failure; test reproduces an unfixed bug
330 		echo "$result"
331 		test_cleanup "$testroot" || return 1
332 	else
333 		echo "test failed; leaving test data in $testroot"
334 	fi
335 }