1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
#!/bin/sh
#
# Copyright (c) 2006 Johannes E. Schindelin
#
test_description='git rerere
'
. ./test-lib.sh
test_expect_success 'setup' "
cat > a1 <<- EOF &&
Some title
==========
Whether 'tis nobler in the mind to suffer
The slings and arrows of outrageous fortune,
Or to take arms against a sea of troubles,
And by opposing end them? To die: to sleep;
No more; and by a sleep to say we end
The heart-ache and the thousand natural shocks
That flesh is heir to, 'tis a consummation
Devoutly to be wish'd.
EOF
git add a1 &&
git commit -q -a -m initial &&
git checkout -b first &&
cat >> a1 <<- EOF &&
Some title
==========
To die, to sleep;
To sleep: perchance to dream: ay, there's the rub;
For in that sleep of death what dreams may come
When we have shuffled off this mortal coil,
Must give us pause: there's the respect
That makes calamity of so long life;
EOF
git commit -q -a -m first &&
git checkout -b second master &&
git show first:a1 |
sed -e 's/To die, t/To die! T/' -e 's/Some title/Some Title/' > a1 &&
echo '* END *' >>a1 &&
git commit -q -a -m second
"
test_expect_success 'nothing recorded without rerere' '
(rm -rf .git/rr-cache; git config rerere.enabled false) &&
test_must_fail git merge first &&
! test -d .git/rr-cache
'
# activate rerere, old style
test_expect_success 'conflicting merge' '
git reset --hard &&
mkdir .git/rr-cache &&
git config --unset rerere.enabled &&
test_must_fail git merge first
'
sha1=$(perl -pe 's/ .*//' .git/MERGE_RR)
rr=.git/rr-cache/$sha1
test_expect_success 'recorded preimage' "grep ^=======$ $rr/preimage"
test_expect_success 'rerere.enabled works, too' '
rm -rf .git/rr-cache &&
git config rerere.enabled true &&
git reset --hard &&
test_must_fail git merge first &&
grep ^=======$ $rr/preimage
'
test_expect_success 'no postimage or thisimage yet' \
"test ! -f $rr/postimage -a ! -f $rr/thisimage"
test_expect_success 'preimage has right number of lines' '
cnt=$(sed -ne "/^<<<<<<</,/^>>>>>>>/p" $rr/preimage | wc -l) &&
test $cnt = 13
'
git show first:a1 > a1
cat > expect << EOF
--- a/a1
+++ b/a1
@@ -1,4 +1,4 @@
-Some Title
+Some title
==========
Whether 'tis nobler in the mind to suffer
The slings and arrows of outrageous fortune,
@@ -8,21 +8,11 @@
The heart-ache and the thousand natural shocks
That flesh is heir to, 'tis a consummation
Devoutly to be wish'd.
-<<<<<<<
-Some Title
-==========
-To die! To sleep;
-=======
Some title
==========
To die, to sleep;
->>>>>>>
To sleep: perchance to dream: ay, there's the rub;
For in that sleep of death what dreams may come
When we have shuffled off this mortal coil,
Must give us pause: there's the respect
That makes calamity of so long life;
-<<<<<<<
-=======
-* END *
->>>>>>>
EOF
git rerere diff > out
test_expect_success 'rerere diff' 'test_cmp expect out'
cat > expect << EOF
a1
EOF
git rerere status > out
test_expect_success 'rerere status' 'test_cmp expect out'
test_expect_success 'commit succeeds' \
"git commit -q -a -m 'prefer first over second'"
test_expect_success 'recorded postimage' "test -f $rr/postimage"
test_expect_success 'another conflicting merge' '
git checkout -b third master &&
git show second^:a1 | sed "s/To die: t/To die! T/" > a1 &&
git commit -q -a -m third &&
test_must_fail git pull . first
'
git show first:a1 | sed 's/To die: t/To die! T/' > expect
test_expect_success 'rerere kicked in' "! grep ^=======$ a1"
test_expect_success 'rerere prefers first change' 'test_cmp a1 expect'
rm $rr/postimage
echo "$sha1 a1" | perl -pe 'y/\012/\000/' > .git/MERGE_RR
test_expect_success 'rerere clear' 'git rerere clear'
test_expect_success 'clear removed the directory' "test ! -d $rr"
mkdir $rr
echo Hello > $rr/preimage
echo World > $rr/postimage
sha2=4000000000000000000000000000000000000000
rr2=.git/rr-cache/$sha2
mkdir $rr2
echo Hello > $rr2/preimage
almost_15_days_ago=$((60-15*86400))
just_over_15_days_ago=$((-1-15*86400))
almost_60_days_ago=$((60-60*86400))
just_over_60_days_ago=$((-1-60*86400))
test-chmtime =$almost_60_days_ago $rr/preimage
test-chmtime =$almost_15_days_ago $rr2/preimage
test_expect_success 'garbage collection (part1)' 'git rerere gc'
test_expect_success 'young records still live' \
"test -f $rr/preimage && test -f $rr2/preimage"
test-chmtime =$just_over_60_days_ago $rr/preimage
test-chmtime =$just_over_15_days_ago $rr2/preimage
test_expect_success 'garbage collection (part2)' 'git rerere gc'
test_expect_success 'old records rest in peace' \
"test ! -f $rr/preimage && test ! -f $rr2/preimage"
test_expect_success 'file2 added differently in two branches' '
git reset --hard &&
git checkout -b fourth &&
echo Hallo > file2 &&
git add file2 &&
git commit -m version1 &&
git checkout third &&
echo Bello > file2 &&
git add file2 &&
git commit -m version2 &&
test_must_fail git merge fourth &&
echo Cello > file2 &&
git add file2 &&
git commit -m resolution
'
test_expect_success 'resolution was recorded properly' '
git reset --hard HEAD~2 &&
git checkout -b fifth &&
echo Hallo > file3 &&
git add file3 &&
git commit -m version1 &&
git checkout third &&
echo Bello > file3 &&
git add file3 &&
git commit -m version2 &&
git tag version2 &&
test_must_fail git merge fifth &&
test Cello = "$(cat file3)" &&
test 0 != $(git ls-files -u | wc -l)
'
test_expect_success 'rerere.autoupdate' '
git config rerere.autoupdate true
git reset --hard &&
git checkout version2 &&
test_must_fail git merge fifth &&
test 0 = $(git ls-files -u | wc -l)
'
test_expect_success 'merge --rerere-autoupdate' '
git config --unset rerere.autoupdate
git reset --hard &&
git checkout version2 &&
test_must_fail git merge --rerere-autoupdate fifth &&
test 0 = $(git ls-files -u | wc -l)
'
test_expect_success 'merge --no-rerere-autoupdate' '
git config rerere.autoupdate true
git reset --hard &&
git checkout version2 &&
test_must_fail git merge --no-rerere-autoupdate fifth &&
test 2 = $(git ls-files -u | wc -l)
'
test_done
|
