1#!/bin/sh
2#
3# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
4#
5
6test_description='test clone --reference'
7. ./test-lib.sh
8
9base_dir=`pwd`
10
11U=$base_dir/UPLOAD_LOG
12
13# create a commit in repo $1 with name $2
14commit_in () {
15 (
16 cd "$1" &&
17 echo "$2" >"$2" &&
18 git add "$2" &&
19 git commit -m "$2"
20 )
21}
22
23# check that there are $2 loose objects in repo $1
24test_objcount () {
25 echo "$2" >expect &&
26 git -C "$1" count-objects >actual.raw &&
27 cut -d' ' -f1 <actual.raw >actual &&
28 test_cmp expect actual
29}
30
31test_expect_success 'preparing first repository' '
32 test_create_repo A &&
33 commit_in A file1
34'
35
36test_expect_success 'preparing second repository' '
37 git clone A B &&
38 commit_in B file2 &&
39 git -C B repack -ad &&
40 git -C B prune
41'
42
43test_expect_success 'cloning with reference (-l -s)' '
44 git clone -l -s --reference B A C
45'
46
47test_expect_success 'existence of info/alternates' '
48 test_line_count = 2 C/.git/objects/info/alternates
49'
50
51test_expect_success 'pulling from reference' '
52 git -C C pull ../B master
53'
54
55test_expect_success 'that reference gets used' '
56 test_objcount C 0
57'
58
59test_expect_success 'cloning with reference (no -l -s)' '
60 GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
61'
62
63test_expect_success 'fetched no objects' '
64 test -s "$U.D" &&
65 ! grep " want" "$U.D"
66'
67
68test_expect_success 'existence of info/alternates' '
69 test_line_count = 1 D/.git/objects/info/alternates
70'
71
72test_expect_success 'pulling from reference' '
73 git -C D pull ../B master
74'
75
76test_expect_success 'that reference gets used' '
77 test_objcount D 0
78'
79
80test_expect_success 'updating origin' '
81 commit_in A file3 &&
82 git -C A repack -ad &&
83 git -C A prune
84'
85
86test_expect_success 'pulling changes from origin' '
87 git -C C pull origin
88'
89
90# the 2 local objects are commit and tree from the merge
91test_expect_success 'that alternate to origin gets used' '
92 test_objcount C 2
93'
94
95test_expect_success 'pulling changes from origin' '
96 git -C D pull origin
97'
98
99# the 5 local objects are expected; file3 blob, commit in A to add it
100# and its tree, and 2 are our tree and the merge commit.
101test_expect_success 'check objects expected to exist locally' '
102 test_objcount D 5
103'
104
105test_expect_success 'preparing alternate repository #1' '
106 test_create_repo F &&
107 commit_in F file1
108'
109
110test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' '
111 git clone F G &&
112 commit_in F file2
113'
114
115test_expect_success 'cloning alternate repo #1, using #2 as reference' '
116 git clone --reference G F H
117'
118
119test_expect_success 'cloning with reference being subset of source (-l -s)' '
120 git clone -l -s --reference A B E
121'
122
123test_expect_success 'cloning with multiple references drops duplicates' '
124 git clone -s --reference B --reference A --reference B A dups &&
125 test_line_count = 2 dups/.git/objects/info/alternates
126'
127
128test_expect_success 'clone with reference from a tagged repository' '
129 (
130 cd A && git tag -a -m tagged HEAD
131 ) &&
132 git clone --reference=A A I
133'
134
135test_expect_success 'prepare branched repository' '
136 git clone A J &&
137 (
138 cd J &&
139 git checkout -b other master^ &&
140 echo other >otherfile &&
141 git add otherfile &&
142 git commit -m other &&
143 git checkout master
144 )
145'
146
147test_expect_success 'fetch with incomplete alternates' '
148 git init K &&
149 echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&
150 (
151 cd K &&
152 git remote add J "file://$base_dir/J" &&
153 GIT_TRACE_PACKET=$U.K git fetch J
154 ) &&
155 master_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/master) &&
156 test -s "$U.K" &&
157 ! grep " want $master_object" "$U.K" &&
158 tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
159 ! grep " want $tag_object" "$U.K"
160'
161
162test_expect_success 'clone using repo with gitfile as a reference' '
163 git clone --separate-git-dir=L A M &&
164 git clone --reference=M A N &&
165 echo "$base_dir/L/objects" >expected &&
166 test_cmp expected "$base_dir/N/.git/objects/info/alternates"
167'
168
169test_expect_success 'clone using repo pointed at by gitfile as reference' '
170 git clone --reference=M/.git A O &&
171 echo "$base_dir/L/objects" >expected &&
172 test_cmp expected "$base_dir/O/.git/objects/info/alternates"
173'
174
175test_expect_success 'clone and dissociate from reference' '
176 git init P &&
177 (
178 cd P && test_commit one
179 ) &&
180 git clone P Q &&
181 (
182 cd Q && test_commit two
183 ) &&
184 git clone --no-local --reference=P Q R &&
185 git clone --no-local --reference=P --dissociate Q S &&
186 # removing the reference P would corrupt R but not S
187 rm -fr P &&
188 test_must_fail git -C R fsck &&
189 git -C S fsck
190'
191test_expect_success 'clone, dissociate from partial reference and repack' '
192 rm -fr P Q R &&
193 git init P &&
194 (
195 cd P &&
196 test_commit one &&
197 git repack &&
198 test_commit two &&
199 git repack
200 ) &&
201 git clone --bare P Q &&
202 (
203 cd P &&
204 git checkout -b second &&
205 test_commit three &&
206 git repack
207 ) &&
208 git clone --bare --dissociate --reference=P Q R &&
209 ls R/objects/pack/*.pack >packs.txt &&
210 test_line_count = 1 packs.txt
211'
212
213test_done