summaryrefslogtreecommitdiff
path: root/t/t7003-filter-branch.sh
blob: 377c648e04f55359eefa87cdf2ad0c06be0df171 (plain)
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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
#!/bin/sh

test_description='git filter-branch'
. ./test-lib.sh
. "$TEST_DIRECTORY/lib-gpg.sh"

test_expect_success 'setup' '
	test_commit A &&
	GIT_COMMITTER_DATE="@0 +0000" GIT_AUTHOR_DATE="@0 +0000" &&
	test_commit --notick B &&
	git checkout -b branch B &&
	test_commit D &&
	mkdir dir &&
	test_commit dir/D &&
	test_commit E &&
	git checkout master &&
	test_commit C &&
	git checkout branch &&
	git merge C &&
	git tag F &&
	test_commit G &&
	test_commit H
'
# * (HEAD, branch) H
# * G
# *   Merge commit 'C' into branch
# |\
# | * (master) C
# * | E
# * | dir/D
# * | D
# |/
# * B
# * A


H=$(git rev-parse H)

test_expect_success 'rewrite identically' '
	git filter-branch branch
'
test_expect_success 'result is really identical' '
	test $H = $(git rev-parse HEAD)
'

test_expect_success 'rewrite bare repository identically' '
	(git config core.bare true && cd .git &&
	 git filter-branch branch > filter-output 2>&1 &&
	! fgrep fatal filter-output)
'
git config core.bare false
test_expect_success 'result is really identical' '
	test $H = $(git rev-parse HEAD)
'

TRASHDIR=$(pwd)
test_expect_success 'correct GIT_DIR while using -d' '
	mkdir drepo &&
	( cd drepo &&
	git init &&
	test_commit drepo &&
	git filter-branch -d "$TRASHDIR/dfoo" \
		--index-filter "cp \"$TRASHDIR\"/dfoo/backup-refs \"$TRASHDIR\"" \
	) &&
	grep drepo "$TRASHDIR/backup-refs"
'

test_expect_success 'tree-filter works with -d' '
	git init drepo-tree &&
	(
		cd drepo-tree &&
		test_commit one &&
		git filter-branch -d "$TRASHDIR/dfoo" \
			--tree-filter "echo changed >one.t" &&
		echo changed >expect &&
		git cat-file blob HEAD:one.t >actual &&
		test_cmp expect actual &&
		test_cmp one.t actual
	)
'

test_expect_success 'Fail if commit filter fails' '
	test_must_fail git filter-branch -f --commit-filter "exit 1" HEAD
'

test_expect_success 'rewrite, renaming a specific file' '
	git filter-branch -f --tree-filter "mv D.t doh || :" HEAD
'

test_expect_success 'test that the file was renamed' '
	test D = "$(git show HEAD:doh --)" &&
	! test -f D.t &&
	test -f doh &&
	test D = "$(cat doh)"
'

test_expect_success 'rewrite, renaming a specific directory' '
	git filter-branch -f --tree-filter "mv dir diroh || :" HEAD
'

test_expect_success 'test that the directory was renamed' '
	test dir/D = "$(git show HEAD:diroh/D.t --)" &&
	! test -d dir &&
	test -d diroh &&
	! test -d diroh/dir &&
	test -f diroh/D.t &&
	test dir/D = "$(cat diroh/D.t)"
'

git tag oldD HEAD~4
test_expect_success 'rewrite one branch, keeping a side branch' '
	git branch modD oldD &&
	git filter-branch -f --tree-filter "mv B.t boh || :" D..modD
'

test_expect_success 'common ancestor is still common (unchanged)' '
	test "$(git merge-base modD D)" = "$(git rev-parse B)"
'

test_expect_success 'filter subdirectory only' '
	mkdir subdir &&
	touch subdir/new &&
	git add subdir/new &&
	test_tick &&
	git commit -m "subdir" &&
	echo H > A.t &&
	test_tick &&
	git commit -m "not subdir" A.t &&
	echo A > subdir/new &&
	test_tick &&
	git commit -m "again subdir" subdir/new &&
	git rm A.t &&
	test_tick &&
	git commit -m "again not subdir" &&
	git branch sub &&
	git branch sub-earlier HEAD~2 &&
	git filter-branch -f --subdirectory-filter subdir \
		refs/heads/sub refs/heads/sub-earlier
'

test_expect_success 'subdirectory filter result looks okay' '
	test 2 = $(git rev-list sub | wc -l) &&
	git show sub:new &&
	test_must_fail git show sub:subdir &&
	git show sub-earlier:new &&
	test_must_fail git show sub-earlier:subdir
'

test_expect_success 'more setup' '
	git checkout master &&
	mkdir subdir &&
	echo A > subdir/new &&
	git add subdir/new &&
	test_tick &&
	git commit -m "subdir on master" subdir/new &&
	git rm A.t &&
	test_tick &&
	git commit -m "again subdir on master" &&
	git merge branch
'

test_expect_success 'use index-filter to move into a subdirectory' '
	git branch directorymoved &&
	git filter-branch -f --index-filter \
		 "git ls-files -s | sed \"s-	-&newsubdir/-\" |
	          GIT_INDEX_FILE=\$GIT_INDEX_FILE.new \
			git update-index --index-info &&
		  mv \"\$GIT_INDEX_FILE.new\" \"\$GIT_INDEX_FILE\"" directorymoved &&
	git diff --exit-code HEAD directorymoved:newsubdir
'

test_expect_success 'stops when msg filter fails' '
	old=$(git rev-parse HEAD) &&
	test_must_fail git filter-branch -f --msg-filter false HEAD &&
	test $old = $(git rev-parse HEAD) &&
	rm -rf .git-rewrite
'

test_expect_success 'author information is preserved' '
	: > i &&
	git add i &&
	test_tick &&
	GIT_AUTHOR_NAME="B V Uips" git commit -m bvuips &&
	git branch preserved-author &&
	(sane_unset GIT_AUTHOR_NAME &&
	 git filter-branch -f --msg-filter "cat; \
			test \$GIT_COMMIT != $(git rev-parse master) || \
			echo Hallo" \
		preserved-author) &&
	test 1 = $(git rev-list --author="B V Uips" preserved-author | wc -l)
'

test_expect_success "remove a certain author's commits" '
	echo i > i &&
	test_tick &&
	git commit -m i i &&
	git branch removed-author &&
	git filter-branch -f --commit-filter "\
		if [ \"\$GIT_AUTHOR_NAME\" = \"B V Uips\" ];\
		then\
			skip_commit \"\$@\";
		else\
			git commit-tree \"\$@\";\
		fi" removed-author &&
	cnt1=$(git rev-list master | wc -l) &&
	cnt2=$(git rev-list removed-author | wc -l) &&
	test $cnt1 -eq $(($cnt2 + 1)) &&
	test 0 = $(git rev-list --author="B V Uips" removed-author | wc -l)
'

test_expect_success 'barf on invalid name' '
	test_must_fail git filter-branch -f master xy-problem &&
	test_must_fail git filter-branch -f HEAD^
'

test_expect_success '"map" works in commit filter' '
	git filter-branch -f --commit-filter "\
		parent=\$(git rev-parse \$GIT_COMMIT^) &&
		mapped=\$(map \$parent) &&
		actual=\$(echo \"\$@\" | sed \"s/^.*-p //\") &&
		test \$mapped = \$actual &&
		git commit-tree \"\$@\";" master~2..master &&
	git rev-parse --verify master
'

test_expect_success 'Name needing quotes' '

	git checkout -b rerere A &&
	mkdir foo &&
	name="れれれ" &&
	>foo/$name &&
	git add foo &&
	git commit -m "Adding a file" &&
	git filter-branch --tree-filter "rm -fr foo" &&
	test_must_fail git ls-files --error-unmatch "foo/$name" &&
	test $(git rev-parse --verify rerere) != $(git rev-parse --verify A)

'

test_expect_success 'Subdirectory filter with disappearing trees' '
	git reset --hard &&
	git checkout master &&

	mkdir foo &&
	touch foo/bar &&
	git add foo &&
	test_tick &&
	git commit -m "Adding foo" &&

	git rm -r foo &&
	test_tick &&
	git commit -m "Removing foo" &&

	mkdir foo &&
	touch foo/bar &&
	git add foo &&
	test_tick &&
	git commit -m "Re-adding foo" &&

	git filter-branch -f --subdirectory-filter foo &&
	test $(git rev-list master | wc -l) = 3
'

test_expect_success 'Tag name filtering retains tag message' '
	git tag -m atag T &&
	git cat-file tag T > expect &&
	git filter-branch -f --tag-name-filter cat &&
	git cat-file tag T > actual &&
	test_cmp expect actual
'

faux_gpg_tag='object XXXXXX
type commit
tag S
tagger T A Gger <tagger@example.com> 1206026339 -0500

This is a faux gpg signed tag.
-----BEGIN PGP SIGNATURE-----
Version: FauxGPG v0.0.0 (FAUX/Linux)

gdsfoewhxu/6l06f1kxyxhKdZkrcbaiOMtkJUA9ITAc1mlamh0ooasxkH1XwMbYQ
acmwXaWET20H0GeAGP+7vow=
=agpO
-----END PGP SIGNATURE-----
'
test_expect_success 'Tag name filtering strips gpg signature' '
	sha1=$(git rev-parse HEAD) &&
	sha1t=$(echo "$faux_gpg_tag" | sed -e s/XXXXXX/$sha1/ | git mktag) &&
	git update-ref "refs/tags/S" "$sha1t" &&
	echo "$faux_gpg_tag" | sed -e s/XXXXXX/$sha1/ | head -n 6 > expect &&
	git filter-branch -f --tag-name-filter cat &&
	git cat-file tag S > actual &&
	test_cmp expect actual
'

test_expect_success GPG 'Filtering retains message of gpg signed commit' '
	mkdir gpg &&
	touch gpg/foo &&
	git add gpg &&
	test_tick &&
	git commit -S -m "Adding gpg" &&

	git log -1 --format="%s" > expect &&
	git filter-branch -f --msg-filter "cat" &&
	git log -1 --format="%s" > actual &&
	test_cmp expect actual
'

test_expect_success 'Tag name filtering allows slashes in tag names' '
	git tag -m tag-with-slash X/1 &&
	git cat-file tag X/1 | sed -e s,X/1,X/2, > expect &&
	git filter-branch -f --tag-name-filter "echo X/2" &&
	git cat-file tag X/2 > actual &&
	test_cmp expect actual
'

test_expect_success 'Prune empty commits' '
	git rev-list HEAD > expect &&
	test_commit to_remove &&
	git filter-branch -f --index-filter "git update-index --remove to_remove.t" --prune-empty HEAD &&
	git rev-list HEAD > actual &&
	test_cmp expect actual
'

test_expect_success 'prune empty collapsed merges' '
	test_config merge.ff false &&
	git rev-list HEAD >expect &&
	test_commit to_remove_2 &&
	git reset --hard HEAD^ &&
	test_merge non-ff to_remove_2 &&
	git filter-branch -f --index-filter "git update-index --remove to_remove_2.t" --prune-empty HEAD &&
	git rev-list HEAD >actual &&
	test_cmp expect actual
'

test_expect_success '--remap-to-ancestor with filename filters' '
	git checkout master &&
	git reset --hard A &&
	test_commit add-foo foo 1 &&
	git branch moved-foo &&
	test_commit add-bar bar a &&
	git branch invariant &&
	orig_invariant=$(git rev-parse invariant) &&
	git branch moved-bar &&
	test_commit change-foo foo 2 &&
	git filter-branch -f --remap-to-ancestor \
		moved-foo moved-bar A..master \
		-- -- foo &&
	test $(git rev-parse moved-foo) = $(git rev-parse moved-bar) &&
	test $(git rev-parse moved-foo) = $(git rev-parse master^) &&
	test $orig_invariant = $(git rev-parse invariant)
'

test_expect_success 'automatic remapping to ancestor with filename filters' '
	git checkout master &&
	git reset --hard A &&
	test_commit add-foo2 foo 1 &&
	git branch moved-foo2 &&
	test_commit add-bar2 bar a &&
	git branch invariant2 &&
	orig_invariant=$(git rev-parse invariant2) &&
	git branch moved-bar2 &&
	test_commit change-foo2 foo 2 &&
	git filter-branch -f \
		moved-foo2 moved-bar2 A..master \
		-- -- foo &&
	test $(git rev-parse moved-foo2) = $(git rev-parse moved-bar2) &&
	test $(git rev-parse moved-foo2) = $(git rev-parse master^) &&
	test $orig_invariant = $(git rev-parse invariant2)
'

test_expect_success 'setup submodule' '
	rm -fr ?* .git &&
	git init &&
	test_commit file &&
	mkdir submod &&
	submodurl="$PWD/submod" &&
	( cd submod &&
	  git init &&
	  test_commit file-in-submod ) &&
	git submodule add "$submodurl" &&
	git commit -m "added submodule" &&
	test_commit add-file &&
	( cd submod && test_commit add-in-submodule ) &&
	git add submod &&
	git commit -m "changed submodule" &&
	git branch original HEAD
'

orig_head=`git show-ref --hash --head HEAD`

test_expect_success 'rewrite submodule with another content' '
	git filter-branch --tree-filter "test -d submod && {
					 rm -rf submod &&
					 git rm -rf --quiet submod &&
					 mkdir submod &&
					 : > submod/file
					 } || :" HEAD &&
	test $orig_head != `git show-ref --hash --head HEAD`
'

test_expect_success 'replace submodule revision' '
	git reset --hard original &&
	git filter-branch -f --tree-filter \
	    "if git ls-files --error-unmatch -- submod > /dev/null 2>&1
	     then git update-index --cacheinfo 160000 0123456789012345678901234567890123456789 submod
	     fi" HEAD &&
	test $orig_head != `git show-ref --hash --head HEAD`
'

test_expect_success 'filter commit message without trailing newline' '
	git reset --hard original &&
	commit=$(printf "no newline" | git commit-tree HEAD^{tree}) &&
	git update-ref refs/heads/no-newline $commit &&
	git filter-branch -f refs/heads/no-newline &&
	echo $commit >expect &&
	git rev-parse refs/heads/no-newline >actual &&
	test_cmp expect actual
'

test_done