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 git_init()
31 {
32 	git init -q "$1"
33 
34 	# Switch the default branch to match our test expectations if needed.
35 	# Only need to change HEAD since 'git init' did not create any refs.
36 	# Relying on implementation details of 'git init' is no problem for us.
37 	# We want to be alerted when Git changes fundamental assumptions such
38 	# as what an empty repository looks like and where the default branch
39 	# is set. In such cases Got's own tooling might well need to change
40 	# its behaviour, too, and our tests should fail.
41 	# TODO: Update all tests to assume 'main' instead of 'master' and
42 	# switch to main here, to match Got's own default.
43 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
44 }
45 
46 maybe_pack_repo()
47 {
48 	local repo="$1"
49 	if [ -n "$GOT_TEST_PACK" ]; then
50 		(cd $repo && gotadmin pack -a > /dev/null)
51 		(cd $repo && gotadmin cleanup -a -q)
52 	fi
53 }
54 
55 git_commit()
56 {
57 	local repo="$1"
58 	shift
59 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
60 	maybe_pack_repo $repo
61 }
62 
63 git_rm()
64 {
65 	local repo="$1"
66 	shift
67 	(cd $repo && git rm -q "$@")
68 }
69 
70 git_show_head()
71 {
72 	local repo="$1"
73 	(cd $repo && git show --no-patch --pretty='format:%H')
74 }
75 
76 git_show_branch_head()
77 {
78 	local repo="$1"
79 	local branch="$2"
80 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
81 }
82 
83 
84 git_show_author_time()
85 {
86 	local repo="$1"
87 	local object="$2"
88 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
89 }
90 
91 git_show_tagger_time()
92 {
93 	local repo="$1"
94 	local tag="$2"
95 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
96 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
97 }
98 
99 git_show_parent_commit()
100 {
101 	local repo="$1"
102 	local commit="$2"
103 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
104 }
105 
106 git_show_tree()
107 {
108 	local repo="$1"
109 	(cd $repo && git show --no-patch --pretty='format:%T')
110 }
111 
112 trim_obj_id()
113 {
114 	local trimcount=$1
115 	local id=$2
116 
117 	local pat=""
118 	while [ "$trimcount" -gt 0 ]; do
119 		pat="[0-9a-f]$pat"
120 		trimcount=$((trimcount - 1))
121 	done
122 
123 	echo ${id%$pat}
124 }
125 
126 git_commit_tree()
127 {
128 	local repo="$1"
129 	local msg="$2"
130 	local tree="$3"
131 	(cd $repo && git commit-tree -m "$msg" "$tree")
132 }
133 
134 git_fsck()
135 {
136 	local testroot="$1"
137 	local repo="$2"
138 
139 	(cd $repo && git fsck --strict \
140 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
141 	ret=$?
142 	if [ $ret -ne 0 ]; then
143 		echo -n "git fsck: "
144 		cat $testroot/fsck.stderr
145 		echo "git fsck failed; leaving test data in $testroot"
146 		return 1
147 	fi
148 
149 	return 0
150 }
151 
152 make_test_tree()
153 {
154 	repo="$1"
155 
156 	echo alpha > $repo/alpha
157 	echo beta > $repo/beta
158 	mkdir $repo/gamma
159 	echo delta > $repo/gamma/delta
160 	mkdir $repo/epsilon
161 	echo zeta > $repo/epsilon/zeta
162 }
163 
164 make_single_file_repo()
165 {
166 	repo="$1"
167 	file="$2"
168 
169 	mkdir $repo
170 	git_init $repo
171 	echo "this is file $file" > $repo/$file
172 	(cd $repo && git add .)
173 	git_commit $repo -m "intialize $repo with file $file"
174 }
175 
176 get_loose_object_path()
177 {
178 	local repo="$1"
179 	local id="$2"
180 	local id0=`trim_obj_id 38 $id`
181 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
182 	echo "$repo/.git/objects/$id0/$idrest"
183 }
184 
185 get_blob_id()
186 {
187 	repo="$1"
188 	tree_path="$2"
189 	filename="$3"
190 
191 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
192 		cut -d' ' -f 1
193 }
194 
195 test_init()
196 {
197 	local testname="$1"
198 	local no_tree="$2"
199 	if [ -z "$testname" ]; then
200 		echo "No test name provided" >&2
201 		return 1
202 	fi
203 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
204 	mkdir $testroot/repo
205 	git_init $testroot/repo
206 	if [ -z "$no_tree" ]; then
207 		make_test_tree $testroot/repo
208 		(cd $repo && git add .)
209 		git_commit $testroot/repo -m "adding the test tree"
210 	fi
211 	touch $testroot/repo/.git/git-daemon-export-ok
212 	echo "$testroot"
213 }
214 
215 test_cleanup()
216 {
217 	local testroot="$1"
218 
219 	git_fsck $testroot $testroot/repo
220 	ret=$?
221 	if [ $ret -ne 0 ]; then
222 		return $ret
223 	fi
224 
225 	rm -rf "$testroot"
226 }
227 
228 test_parseargs()
229 {
230 	while getopts qr: flag; do
231 		case $flag in
232 		q)	export GOT_TEST_QUIET=1
233 			;;
234 		r)	export GOT_TEST_ROOT=$OPTARG
235 			;;
236 		?)	echo "Supported options:"
237 			echo "  -q: quiet mode"
238 			echo "  -r PATH: use PATH as test data root directory"
239 			exit 2
240 			;;
241 		esac
242 	done
243 } >&2
244 
245 run_test()
246 {
247 	testfunc="$1"
248 	if [ -z "$GOT_TEST_QUIET" ]; then
249 		echo -n "$testfunc "
250 	fi
251 	$testfunc
252 }
253 
254 test_done()
255 {
256 	local testroot="$1"
257 	local result="$2"
258 	if [ "$result" = "0" ]; then
259 		test_cleanup "$testroot" || return 1
260 		if [ -z "$GOT_TEST_QUIET" ]; then
261 			echo "ok"
262 		fi
263 	elif echo "$result" | grep -q "^xfail"; then
264 		# expected test failure; test reproduces an unfixed bug
265 		echo "$result"
266 		test_cleanup "$testroot" || return 1
267 	else
268 		echo "test failed; leaving test data in $testroot"
269 	fi
270 }