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 git_init()
32 {
33 	git init -q "$1"
34 
35 	# Switch the default branch to match our test expectations if needed.
36 	# Only need to change HEAD since 'git init' did not create any refs.
37 	# Relying on implementation details of 'git init' is no problem for us.
38 	# We want to be alerted when Git changes fundamental assumptions such
39 	# as what an empty repository looks like and where the default branch
40 	# is set. In such cases Got's own tooling might well need to change
41 	# its behaviour, too, and our tests should fail.
42 	# TODO: Update all tests to assume 'main' instead of 'master' and
43 	# switch to main here, to match Got's own default.
44 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
45 }
46 
47 maybe_pack_repo()
48 {
49 	local repo="$1"
50 	if [ -n "$GOT_TEST_PACK" ]; then
51 		(cd $repo && gotadmin pack -a > /dev/null)
52 		(cd $repo && gotadmin cleanup -a -q)
53 	fi
54 }
55 
56 git_commit()
57 {
58 	local repo="$1"
59 	shift
60 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
61 	maybe_pack_repo $repo
62 }
63 
64 git_rm()
65 {
66 	local repo="$1"
67 	shift
68 	(cd $repo && git rm -q "$@")
69 }
70 
71 git_show_head()
72 {
73 	local repo="$1"
74 	(cd $repo && git show --no-patch --pretty='format:%H')
75 }
76 
77 git_show_branch_head()
78 {
79 	local repo="$1"
80 	local branch="$2"
81 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
82 }
83 
84 
85 git_show_author_time()
86 {
87 	local repo="$1"
88 	local object="$2"
89 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
90 }
91 
92 git_show_tagger_time()
93 {
94 	local repo="$1"
95 	local tag="$2"
96 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
97 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
98 }
99 
100 git_show_parent_commit()
101 {
102 	local repo="$1"
103 	local commit="$2"
104 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
105 }
106 
107 git_show_tree()
108 {
109 	local repo="$1"
110 	(cd $repo && git show --no-patch --pretty='format:%T')
111 }
112 
113 trim_obj_id()
114 {
115 	local trimcount=$1
116 	local id=$2
117 
118 	local pat=""
119 	while [ "$trimcount" -gt 0 ]; do
120 		pat="[0-9a-f]$pat"
121 		trimcount=$((trimcount - 1))
122 	done
123 
124 	echo ${id%$pat}
125 }
126 
127 git_commit_tree()
128 {
129 	local repo="$1"
130 	local msg="$2"
131 	local tree="$3"
132 	(cd $repo && git commit-tree -m "$msg" "$tree")
133 }
134 
135 git_fsck()
136 {
137 	local testroot="$1"
138 	local repo="$2"
139 
140 	(cd $repo && git fsck --strict \
141 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
142 	ret=$?
143 	if [ $ret -ne 0 ]; then
144 		echo -n "git fsck: "
145 		cat $testroot/fsck.stderr
146 		echo "git fsck failed; leaving test data in $testroot"
147 		return 1
148 	fi
149 
150 	return 0
151 }
152 
153 make_test_tree()
154 {
155 	repo="$1"
156 
157 	echo alpha > $repo/alpha
158 	echo beta > $repo/beta
159 	mkdir $repo/gamma
160 	echo delta > $repo/gamma/delta
161 	mkdir $repo/epsilon
162 	echo zeta > $repo/epsilon/zeta
163 }
164 
165 make_single_file_repo()
166 {
167 	repo="$1"
168 	file="$2"
169 
170 	mkdir $repo
171 	git_init $repo
172 	echo "this is file $file" > $repo/$file
173 	(cd $repo && git add .)
174 	git_commit $repo -m "intialize $repo with file $file"
175 }
176 
177 get_loose_object_path()
178 {
179 	local repo="$1"
180 	local id="$2"
181 	local id0=`trim_obj_id 38 $id`
182 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
183 	echo "$repo/.git/objects/$id0/$idrest"
184 }
185 
186 get_blob_id()
187 {
188 	repo="$1"
189 	tree_path="$2"
190 	filename="$3"
191 
192 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
193 		cut -d' ' -f 1
194 }
195 
196 test_init()
197 {
198 	local testname="$1"
199 	local no_tree="$2"
200 	if [ -z "$testname" ]; then
201 		echo "No test name provided" >&2
202 		return 1
203 	fi
204 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
205 	mkdir $testroot/repo
206 	git_init $testroot/repo
207 	if [ -z "$no_tree" ]; then
208 		make_test_tree $testroot/repo
209 		(cd $repo && git add .)
210 		git_commit $testroot/repo -m "adding the test tree"
211 	fi
212 	touch $testroot/repo/.git/git-daemon-export-ok
213 	echo "$testroot"
214 }
215 
216 test_cleanup()
217 {
218 	local testroot="$1"
219 
220 	git_fsck $testroot $testroot/repo
221 	ret=$?
222 	if [ $ret -ne 0 ]; then
223 		return $ret
224 	fi
225 
226 	rm -rf "$testroot"
227 }
228 
229 test_parseargs()
230 {
231 	while getopts qr: flag; do
232 		case $flag in
233 		q)	export GOT_TEST_QUIET=1
234 			;;
235 		r)	export GOT_TEST_ROOT=${OPTARG%/}
236 			;;
237 		?)	echo "Supported options:"
238 			echo "  -q: quiet mode"
239 			echo "  -r PATH: use PATH as test data root directory"
240 			exit 2
241 			;;
242 		esac
243 	done
244 } >&2
245 
246 run_test()
247 {
248 	testfunc="$1"
249 	if [ -z "$GOT_TEST_QUIET" ]; then
250 		echo -n "$testfunc "
251 	fi
252 	$testfunc
253 }
254 
255 test_done()
256 {
257 	local testroot="$1"
258 	local result="$2"
259 	if [ "$result" = "0" ]; then
260 		test_cleanup "$testroot" || return 1
261 		if [ -z "$GOT_TEST_QUIET" ]; then
262 			echo "ok"
263 		fi
264 	elif echo "$result" | grep -q "^xfail"; then
265 		# expected test failure; test reproduces an unfixed bug
266 		echo "$result"
267 		test_cleanup "$testroot" || return 1
268 	else
269 		echo "test failed; leaving test data in $testroot"
270 	fi
271 }