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 git_init()
30 {
31 	git init -q "$1"
32 
33 	# Switch the default branch to match our test expectations if needed.
34 	# Only need to change HEAD since 'git init' did not create any refs.
35 	# Relying on implementation details of 'git init' is no problem for us.
36 	# We want to be alerted when Git changes fundamental assumptions such
37 	# as what an empty repository looks like and where the default branch
38 	# is set. In such cases Got's own tooling might well need to change
39 	# its behaviour, too, and our tests should fail.
40 	# TODO: Update all tests to assume 'main' instead of 'master' and
41 	# switch to main here, to match Got's own default.
42 	echo "ref: refs/heads/master" > "$1/.git/HEAD"
43 }
44 
45 maybe_pack_repo()
46 {
47 	local repo="$1"
48 	if [ -n "$GOT_TEST_PACK" ]; then
49 		(cd $repo && git repack -a -q)
50 	fi
51 }
52 
53 git_commit()
54 {
55 	local repo="$1"
56 	shift
57 	(cd $repo && git commit --author="$GOT_AUTHOR" -q -a "$@")
58 	maybe_pack_repo $repo
59 }
60 
61 git_rm()
62 {
63 	local repo="$1"
64 	shift
65 	(cd $repo && git rm -q "$@")
66 }
67 
68 git_show_head()
69 {
70 	local repo="$1"
71 	(cd $repo && git show --no-patch --pretty='format:%H')
72 }
73 
74 git_show_branch_head()
75 {
76 	local repo="$1"
77 	local branch="$2"
78 	(cd $repo && git show --no-patch --pretty='format:%H' $branch)
79 }
80 
81 
82 git_show_author_time()
83 {
84 	local repo="$1"
85 	local object="$2"
86 	(cd $repo && git show --no-patch --pretty='format:%at' $object)
87 }
88 
89 git_show_tagger_time()
90 {
91 	local repo="$1"
92 	local tag="$2"
93 	(cd $repo && git cat-file tag $tag | grep ^tagger | \
94 		sed -e "s/^tagger $GOT_AUTHOR//" | cut -d' ' -f2)
95 }
96 
97 git_show_parent_commit()
98 {
99 	local repo="$1"
100 	local commit="$2"
101 	(cd $repo && git show --no-patch --pretty='format:%P' $commit)
102 }
103 
104 git_show_tree()
105 {
106 	local repo="$1"
107 	(cd $repo && git show --no-patch --pretty='format:%T')
108 }
109 
110 trim_obj_id()
111 {
112 	local trimcount=$1
113 	local id=$2
114 
115 	local pat=""
116 	while [ "$trimcount" -gt 0 ]; do
117 		pat="[0-9a-f]$pat"
118 		trimcount=$((trimcount - 1))
119 	done
120 
121 	echo ${id%$pat}
122 }
123 
124 git_commit_tree()
125 {
126 	local repo="$1"
127 	local msg="$2"
128 	local tree="$3"
129 	(cd $repo && git commit-tree -m "$msg" "$tree")
130 	maybe_pack_repo $repo
131 }
132 
133 git_fsck()
134 {
135 	local testroot="$1"
136 	local repo="$2"
137 
138 	(cd $repo && git fsck --strict \
139 		> $testroot/fsck.stdout 2> $testroot/fsck.stderr)
140 	ret="$?"
141 	if [ "$ret" != "0" ]; then
142 		echo -n "git fsck: "
143 		cat $testroot/fsck.stderr
144 		echo "git fsck failed; leaving test data in $testroot"
145 		return 1
146 	fi
147 
148 	return 0
149 }
150 
151 make_test_tree()
152 {
153 	repo="$1"
154 
155 	echo alpha > $repo/alpha
156 	echo beta > $repo/beta
157 	mkdir $repo/gamma
158 	echo delta > $repo/gamma/delta
159 	mkdir $repo/epsilon
160 	echo zeta > $repo/epsilon/zeta
161 }
162 
163 make_single_file_repo()
164 {
165 	repo="$1"
166 	file="$2"
167 
168 	mkdir $repo
169 	git_init $repo
170 	echo "this is file $file" > $repo/$file
171 	(cd $repo && git add .)
172 	git_commit $repo -m "intialize $repo with file $file"
173 }
174 
175 get_loose_object_path()
176 {
177 	local repo="$1"
178 	local id="$2"
179 	local id0=`trim_obj_id 38 $id`
180 	local idrest=`echo ${id#[0-9a-f][0-9a-f]}`
181 	echo "$repo/.git/objects/$id0/$idrest"
182 }
183 
184 get_blob_id()
185 {
186 	repo="$1"
187 	tree_path="$2"
188 	filename="$3"
189 
190 	got tree -r $repo -i $tree_path | grep "[0-9a-f] ${filename}$" | \
191 		cut -d' ' -f 1
192 }
193 
194 test_init()
195 {
196 	local testname="$1"
197 	local no_tree="$2"
198 	if [ -z "$testname" ]; then
199 		echo "No test name provided" >&2
200 		return 1
201 	fi
202 	local testroot=`mktemp -d "$GOT_TEST_ROOT/got-test-$testname-XXXXXXXX"`
203 	mkdir $testroot/repo
204 	git_init $testroot/repo
205 	if [ -z "$no_tree" ]; then
206 		make_test_tree $testroot/repo
207 		(cd $repo && git add .)
208 		git_commit $testroot/repo -m "adding the test tree"
209 	fi
210 	touch $testroot/repo/.git/git-daemon-export-ok
211 	echo "$testroot"
212 }
213 
214 test_cleanup()
215 {
216 	local testroot="$1"
217 
218 	git_fsck $testroot $testroot/repo
219 	ret="$?"
220 	if [ "$ret" != "0" ]; then
221 		return $ret
222 	fi
223 
224 	rm -rf "$testroot"
225 }
226 
227 test_parseargs()
228 {
229 	while getopts qr: flag; do
230 		case $flag in
231 		q)	export GOT_TEST_QUIET=1
232 			;;
233 		r)	export GOT_TEST_ROOT=$OPTARG
234 			;;
235 		?)	echo "Supported options:"
236 			echo "  -q: quiet mode"
237 			echo "  -r PATH: use PATH as test data root directory"
238 			exit 2
239 			;;
240 		esac
241 	done
242 } >&2
243 
244 run_test()
245 {
246 	testfunc="$1"
247 	if [ -z "$GOT_TEST_QUIET" ]; then
248 		echo -n "$testfunc "
249 	fi
250 	$testfunc
251 }
252 
253 test_done()
254 {
255 	local testroot="$1"
256 	local result="$2"
257 	if [ "$result" = "0" ]; then
258 		test_cleanup "$testroot" || return 1
259 		if [ -z "$GOT_TEST_QUIET" ]; then
260 			echo "ok"
261 		fi
262 	elif echo "$result" | grep -q "^xfail"; then
263 		# expected test failure; test reproduces an unfixed bug
264 		echo "$result"
265 		test_cleanup "$testroot" || return 1
266 	else
267 		echo "test failed; leaving test data in $testroot"
268 	fi
269 }