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 export GOT_VERSION_STR=`got --version | cut -d ' ' -f2`
28 
29 export MALLOC_OPTIONS=S
30 
31 # Check to see if PLATFORM has a value.  PLATFORM is populated when running
32 # via `./configure && make` but this isn't guaranteed if an individual test is
33 # run directly, such as `regress/cmdline/tag.sh`.  In such cases, PLATFORM
34 # will be empty, but we still want to use it.  Since we test for non-linux
35 # values, only set PLATFORM if we're running on Linu so that the correct
36 # commands are used.
37 [ -z "$PLATFORM" -a "$(uname)" = "Linux" ] && PLATFORM="linux"
38 
39 date()
40 {
41 	DATECMD="date"
42 	[ "$PLATFORM" != "linux" ] && {
43 		command -v "gdate" >/dev/null 2>&1 && {
44 			DATECMD="gdate"
45 		} || {
46 			echo "Couldn't find gdate is GNU coreutils installed?"
47 		}
48 	}
49 	command "$DATECMD" "$@"
50 }
51 
52 ln()
53 {
54 	LNCMD="ln"
55 	[ "$PLATFORM" != "linux" ] && {
56 		command -v "gln" >/dev/null 2>&1 && {
57 			LNCMD="gln"
58 		} || {
59 			echo "Couldn't find gln is GNU coreutils installed?"
60 		}
61 	}
62 	command "$LNCMD" "$@"
63 }
64 
65 sed()
66 {
67 	SEDCMD="sed"
68 
69 	# On non-linux systems, the sed command can happily accept "-i ''" as
70 	# a valid command to not save backup files for in-place edits.
71 	# However, on linux, "-i ''" would be treated as "-i" with a blank
72 	# argument, and hence, no file to edit in-place, which is an error.
73 	#
74 	# Therefore, scan the argument list and remove "-i ''", replacing it
75 	# with just "-i".
76 
77 	[ "$PLATFORM" = "linux" ] && {
78 		for w in "$@"
79 		do
80 			[ "$w" = "-i" ] && {
81 				seen=1
82 				continue
83 			}
84 
85 			[ "$seen" = "1" -a -z "$w" ] && {
86 				# Move past -i and ''
87 				shift 2
88 
89 				command "$SEDCMD" -i "$@"
90 				return
91 			}
92 		done
93 	}
94 	command "$SEDCMD" "$@"
95 }
96 
97 
98 git_init()
99 {
100 	git init -q "$1"
101 
102 	# Switch the default branch to match our test expectations if needed.
103 	# Only need to change HEAD since 'git init' did not create any refs.
104 	# Relying on implementation details of 'git init' is no problem for us.
105 	# We want to be alerted when Git changes fundamental assumptions such
106 	# as what an empty repository looks like and where the default branch
107 	# is set. In such cases Got's own tooling might well need to change
108 	# its behaviour, too, and our tests should fail.
109 	# TODO: Update all tests to assume 'main' instead of 'master' and
110 	# switch to main here, to match Got's own default.
111 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
112 }
113 
114 maybe_pack_repo()
115 {
116 	local repo="$1"
117 	if [ -n "$GOT_TEST_PACK" ]; then
118 		(cd $repo && git repack -a -q)
119 	fi
120 }
121 
122 git_commit()
123 {
124 	local repo="$1"
125 	shift
126 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
127 	maybe_pack_repo $repo
128 }
129 
130 git_rm()
131 {
132 	local repo="$1"
133 	shift
134 	(cd $repo && git rm -q "$@")
135 }
136 
137 git_show_head()
138 {
139 	local repo="$1"
140 	(cd $repo && git show --no-patch --pretty='format:%H')
141 }
142 
143 git_show_branch_head()
144 {
145 	local repo="$1"
146 	local branch="$2"
147 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
148 }
149 
150 
151 git_show_author_time()
152 {
153 	local repo="$1"
154 	local object="$2"
155 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
156 }
157 
158 git_show_tagger_time()
159 {
160 	local repo="$1"
161 	local tag="$2"
162 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
163 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
164 }
165 
166 git_show_parent_commit()
167 {
168 	local repo="$1"
169 	local commit="$2"
170 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
171 }
172 
173 git_show_tree()
174 {
175 	local repo="$1"
176 	(cd $repo && git show --no-patch --pretty='format:%T')
177 }
178 
179 trim_obj_id()
180 {
181 	local trimcount=$1
182 	local id=$2
183 
184 	local pat=""
185 	while [ "$trimcount" -gt 0 ]; do
186 		pat="[0-9a-f]$pat"
187 		trimcount=$((trimcount - 1))
188 	done
189 
190 	echo ${id%$pat}
191 }
192 
193 git_commit_tree()
194 {
195 	local repo="$1"
196 	local msg="$2"
197 	local tree="$3"
198 	(cd $repo && git commit-tree -m "$msg" "$tree")
199 }
200 
201 git_fsck()
202 {
203 	local testroot="$1"
204 	local repo="$2"
205 
206 	(cd $repo && git fsck --strict \
207 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
208 	ret=$?
209 	if [ $ret -ne 0 ]; then
210 		echo -n "git fsck: "
211 		cat $testroot/fsck.stderr
212 		echo "git fsck failed; leaving test data in $testroot"
213 		return 1
214 	fi
215 
216 	return 0
217 }
218 
219 make_test_tree()
220 {
221 	repo="$1"
222 
223 	echo alpha > $repo/alpha
224 	echo beta > $repo/beta
225 	mkdir $repo/gamma
226 	echo delta > $repo/gamma/delta
227 	mkdir $repo/epsilon
228 	echo zeta > $repo/epsilon/zeta
229 }
230 
231 make_single_file_repo()
232 {
233 	repo="$1"
234 	file="$2"
235 
236 	mkdir $repo
237 	git_init $repo
238 	echo "this is file $file" > $repo/$file
239 	(cd $repo && git add .)
240 	git_commit $repo -m "intialize $repo with file $file"
241 }
242 
243 get_loose_object_path()
244 {
245 	local repo="$1"
246 	local id="$2"
247 	local id0=`trim_obj_id 38 $id`
248 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
249 	echo "$repo/.git/objects/$id0/$idrest"
250 }
251 
252 get_blob_id()
253 {
254 	repo="$1"
255 	tree_path="$2"
256 	filename="$3"
257 
258 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
259 		cut -d' ' -f 1
260 }
261 
262 test_init()
263 {
264 	local testname="$1"
265 	local no_tree="$2"
266 	if [ -z "$testname" ]; then
267 		echo "No test name provided" >&2
268 		return 1
269 	fi
270 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
271 	mkdir $testroot/repo
272 	git_init $testroot/repo
273 	if [ -z "$no_tree" ]; then
274 		make_test_tree $testroot/repo
275 		(cd $repo && git add .)
276 		git_commit $testroot/repo -m "adding the test tree"
277 	fi
278 	touch $testroot/repo/.git/git-daemon-export-ok
279 	echo "$testroot"
280 }
281 
282 test_cleanup()
283 {
284 	local testroot="$1"
285 
286 	git_fsck $testroot $testroot/repo
287 	ret=$?
288 	if [ $ret -ne 0 ]; then
289 		return $ret
290 	fi
291 
292 	rm -rf "$testroot"
293 }
294 
295 test_parseargs()
296 {
297 	while getopts qr: flag; do
298 		case $flag in
299 		q)	export GOT_TEST_QUIET=1
300 			;;
301 		r)	export GOT_TEST_ROOT=${OPTARG%/}
302 			;;
303 		?)	echo "Supported options:"
304 			echo "  -q: quiet mode"
305 			echo "  -r PATH: use PATH as test data root directory"
306 			exit 2
307 			;;
308 		esac
309 	done
310 } >&2
311 
312 run_test()
313 {
314 	testfunc="$1"
315 	if [ -z "$GOT_TEST_QUIET" ]; then
316 		echo -n "$testfunc "
317 	fi
318 	$testfunc
319 }
320 
321 test_done()
322 {
323 	local testroot="$1"
324 	local result="$2"
325 	if [ "$result" = "0" ]; then
326 		test_cleanup "$testroot" || return 1
327 		if [ -z "$GOT_TEST_QUIET" ]; then
328 			echo "ok"
329 		fi
330 	elif echo "$result" | grep -q "^xfail"; then
331 		# expected test failure; test reproduces an unfixed bug
332 		echo "$result"
333 		test_cleanup "$testroot" || return 1
334 	else
335 		echo "test failed; leaving test data in $testroot"
336 	fi
337 }