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 "$PLATFORM" ] && [ "$OSTYPE" = "linux-gnu" ] && 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 	[ "$PLATFORM" = "linux" ] && {
75 		set -- "$@"
76 		i=1
77 		while [ "$i" -le "$#" ]; do
78 			m=$((i + 1))
79 			[ "${!i}" = "-i" ] && [ -z "${!m}" ] && {
80 				shift 2
81 				command "$SEDCMD" -i "$@"
82 				return
83 			}
84 			i=$((i + 1))
85 		done
86 	}
87 	command "$SEDCMD" "$@"
88 }
89 
90 
91 git_init()
92 {
93 	git init -q "$1"
94 
95 	# Switch the default branch to match our test expectations if needed.
96 	# Only need to change HEAD since 'git init' did not create any refs.
97 	# Relying on implementation details of 'git init' is no problem for us.
98 	# We want to be alerted when Git changes fundamental assumptions such
99 	# as what an empty repository looks like and where the default branch
100 	# is set. In such cases Got's own tooling might well need to change
101 	# its behaviour, too, and our tests should fail.
102 	# TODO: Update all tests to assume 'main' instead of 'master' and
103 	# switch to main here, to match Got's own default.
104 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
105 }
106 
107 maybe_pack_repo()
108 {
109 	local repo="$1"
110 	if [ -n "$GOT_TEST_PACK" ]; then
111 		(cd $repo && git repack -a -q)
112 	fi
113 }
114 
115 git_commit()
116 {
117 	local repo="$1"
118 	shift
119 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
120 	maybe_pack_repo $repo
121 }
122 
123 git_rm()
124 {
125 	local repo="$1"
126 	shift
127 	(cd $repo && git rm -q "$@")
128 }
129 
130 git_show_head()
131 {
132 	local repo="$1"
133 	(cd $repo && git show --no-patch --pretty='format:%H')
134 }
135 
136 git_show_branch_head()
137 {
138 	local repo="$1"
139 	local branch="$2"
140 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
141 }
142 
143 
144 git_show_author_time()
145 {
146 	local repo="$1"
147 	local object="$2"
148 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
149 }
150 
151 git_show_tagger_time()
152 {
153 	local repo="$1"
154 	local tag="$2"
155 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
156 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
157 }
158 
159 git_show_parent_commit()
160 {
161 	local repo="$1"
162 	local commit="$2"
163 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
164 }
165 
166 git_show_tree()
167 {
168 	local repo="$1"
169 	(cd $repo && git show --no-patch --pretty='format:%T')
170 }
171 
172 trim_obj_id()
173 {
174 	local trimcount=$1
175 	local id=$2
176 
177 	local pat=""
178 	while [ "$trimcount" -gt 0 ]; do
179 		pat="[0-9a-f]$pat"
180 		trimcount=$((trimcount - 1))
181 	done
182 
183 	echo ${id%$pat}
184 }
185 
186 git_commit_tree()
187 {
188 	local repo="$1"
189 	local msg="$2"
190 	local tree="$3"
191 	(cd $repo && git commit-tree -m "$msg" "$tree")
192 }
193 
194 git_fsck()
195 {
196 	local testroot="$1"
197 	local repo="$2"
198 
199 	(cd $repo && git fsck --strict \
200 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
201 	ret=$?
202 	if [ $ret -ne 0 ]; then
203 		echo -n "git fsck: "
204 		cat $testroot/fsck.stderr
205 		echo "git fsck failed; leaving test data in $testroot"
206 		return 1
207 	fi
208 
209 	return 0
210 }
211 
212 make_test_tree()
213 {
214 	repo="$1"
215 
216 	echo alpha > $repo/alpha
217 	echo beta > $repo/beta
218 	mkdir $repo/gamma
219 	echo delta > $repo/gamma/delta
220 	mkdir $repo/epsilon
221 	echo zeta > $repo/epsilon/zeta
222 }
223 
224 make_single_file_repo()
225 {
226 	repo="$1"
227 	file="$2"
228 
229 	mkdir $repo
230 	git_init $repo
231 	echo "this is file $file" > $repo/$file
232 	(cd $repo && git add .)
233 	git_commit $repo -m "intialize $repo with file $file"
234 }
235 
236 get_loose_object_path()
237 {
238 	local repo="$1"
239 	local id="$2"
240 	local id0=`trim_obj_id 38 $id`
241 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
242 	echo "$repo/.git/objects/$id0/$idrest"
243 }
244 
245 get_blob_id()
246 {
247 	repo="$1"
248 	tree_path="$2"
249 	filename="$3"
250 
251 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
252 		cut -d' ' -f 1
253 }
254 
255 test_init()
256 {
257 	local testname="$1"
258 	local no_tree="$2"
259 	if [ -z "$testname" ]; then
260 		echo "No test name provided" >&2
261 		return 1
262 	fi
263 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
264 	mkdir $testroot/repo
265 	git_init $testroot/repo
266 	if [ -z "$no_tree" ]; then
267 		make_test_tree $testroot/repo
268 		(cd $repo && git add .)
269 		git_commit $testroot/repo -m "adding the test tree"
270 	fi
271 	touch $testroot/repo/.git/git-daemon-export-ok
272 	echo "$testroot"
273 }
274 
275 test_cleanup()
276 {
277 	local testroot="$1"
278 
279 	git_fsck $testroot $testroot/repo
280 	ret=$?
281 	if [ $ret -ne 0 ]; then
282 		return $ret
283 	fi
284 
285 	rm -rf "$testroot"
286 }
287 
288 test_parseargs()
289 {
290 	while getopts qr: flag; do
291 		case $flag in
292 		q)	export GOT_TEST_QUIET=1
293 			;;
294 		r)	export GOT_TEST_ROOT=$OPTARG
295 			;;
296 		?)	echo "Supported options:"
297 			echo "  -q: quiet mode"
298 			echo "  -r PATH: use PATH as test data root directory"
299 			exit 2
300 			;;
301 		esac
302 	done
303 } >&2
304 
305 run_test()
306 {
307 	testfunc="$1"
308 	if [ -z "$GOT_TEST_QUIET" ]; then
309 		echo -n "$testfunc "
310 	fi
311 	$testfunc
312 }
313 
314 test_done()
315 {
316 	local testroot="$1"
317 	local result="$2"
318 	if [ "$result" = "0" ]; then
319 		test_cleanup "$testroot" || return 1
320 		if [ -z "$GOT_TEST_QUIET" ]; then
321 			echo "ok"
322 		fi
323 	elif echo "$result" | grep -q "^xfail"; then
324 		# expected test failure; test reproduces an unfixed bug
325 		echo "$result"
326 		test_cleanup "$testroot" || return 1
327 	else
328 		echo "test failed; leaving test data in $testroot"
329 	fi
330 }