freshlybakedca.ke
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1#!/bin/sh
2
3test_description='git partial clone'
4
5GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
6export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
7
8. ./test-lib.sh
9
10# create a normal "src" repo where we can later create new commits.
11# expect_1.oids will contain a list of the OIDs of all blobs.
12test_expect_success 'setup normal src repo' '
13 echo "{print \$1}" >print_1.awk &&
14 echo "{print \$2}" >print_2.awk &&
15
16 git init src &&
17 for n in 1 2 3 4
18 do
19 echo "This is file: $n" > src/file.$n.txt &&
20 git -C src add file.$n.txt &&
21 git -C src commit -m "file $n" &&
22 git -C src ls-files -s file.$n.txt >>temp || return 1
23 done &&
24 awk -f print_2.awk <temp | sort >expect_1.oids &&
25 test_line_count = 4 expect_1.oids
26'
27
28# bare clone "src" giving "srv.bare" for use as our server.
29test_expect_success 'setup bare clone for server' '
30 git clone --bare "file://$(pwd)/src" srv.bare &&
31 git -C srv.bare config --local uploadpack.allowfilter 1 &&
32 git -C srv.bare config --local uploadpack.allowanysha1inwant 1
33'
34
35# do basic partial clone from "srv.bare"
36# confirm we are missing all of the known blobs.
37# confirm partial clone was registered in the local config.
38test_expect_success 'do partial clone 1' '
39 git clone --no-checkout --filter=blob:none "file://$(pwd)/srv.bare" pc1 &&
40
41 git -C pc1 rev-list --quiet --objects --missing=print HEAD >revs &&
42 awk -f print_1.awk revs |
43 sed "s/?//" |
44 sort >observed.oids &&
45
46 test_cmp expect_1.oids observed.oids &&
47 test "$(git -C pc1 config --local core.repositoryformatversion)" = "1" &&
48 test "$(git -C pc1 config --local remote.origin.promisor)" = "true" &&
49 test "$(git -C pc1 config --local remote.origin.partialclonefilter)" = "blob:none"
50'
51
52test_expect_success 'rev-list --missing=allow-promisor on partial clone' '
53 git -C pc1 rev-list --objects --missing=allow-promisor HEAD >actual &&
54 git -C pc1 rev-list --objects --missing=print HEAD >expect.raw &&
55 grep -v "^?" expect.raw >expect &&
56 test_cmp expect actual
57'
58
59test_expect_success 'verify that .promisor file contains refs fetched' '
60 ls pc1/.git/objects/pack/pack-*.promisor >promisorlist &&
61 test_line_count = 1 promisorlist &&
62 git -C srv.bare rev-parse --verify HEAD >headhash &&
63 grep "$(cat headhash) HEAD" $(cat promisorlist) &&
64 grep "$(cat headhash) refs/heads/main" $(cat promisorlist)
65'
66
67# checkout main to force dynamic object fetch of blobs at HEAD.
68test_expect_success 'verify checkout with dynamic object fetch' '
69 git -C pc1 rev-list --quiet --objects --missing=print HEAD >observed &&
70 test_line_count = 4 observed &&
71 git -C pc1 checkout main &&
72 git -C pc1 rev-list --quiet --objects --missing=print HEAD >observed &&
73 test_line_count = 0 observed
74'
75
76# create new commits in "src" repo to establish a blame history on file.1.txt
77# and push to "srv.bare".
78test_expect_success 'push new commits to server' '
79 git -C src remote add srv "file://$(pwd)/srv.bare" &&
80 for x in a b c d e
81 do
82 echo "Mod file.1.txt $x" >>src/file.1.txt &&
83 git -C src add file.1.txt &&
84 git -C src commit -m "mod $x" || return 1
85 done &&
86 git -C src blame main -- file.1.txt >expect.blame &&
87 git -C src push -u srv main
88'
89
90# (partial) fetch in the partial clone repo from the promisor remote.
91# verify that fetch inherited the filter-spec from the config and DOES NOT
92# have the new blobs.
93test_expect_success 'partial fetch inherits filter settings' '
94 git -C pc1 fetch origin &&
95 git -C pc1 rev-list --quiet --objects --missing=print \
96 main..origin/main >observed &&
97 test_line_count = 5 observed
98'
99
100# force dynamic object fetch using diff.
101# we should only get 1 new blob (for the file in origin/main).
102test_expect_success 'verify diff causes dynamic object fetch' '
103 git -C pc1 diff main..origin/main -- file.1.txt &&
104 git -C pc1 rev-list --quiet --objects --missing=print \
105 main..origin/main >observed &&
106 test_line_count = 4 observed
107'
108
109# force full dynamic object fetch of the file's history using blame.
110# we should get the intermediate blobs for the file.
111test_expect_success 'verify blame causes dynamic object fetch' '
112 git -C pc1 blame origin/main -- file.1.txt >observed.blame &&
113 test_cmp expect.blame observed.blame &&
114 git -C pc1 rev-list --quiet --objects --missing=print \
115 main..origin/main >observed &&
116 test_line_count = 0 observed
117'
118
119# create new commits in "src" repo to establish a history on file.2.txt
120# and push to "srv.bare".
121test_expect_success 'push new commits to server for file.2.txt' '
122 for x in a b c d e f
123 do
124 echo "Mod file.2.txt $x" >>src/file.2.txt &&
125 git -C src add file.2.txt &&
126 git -C src commit -m "mod $x" || return 1
127 done &&
128 git -C src push -u srv main
129'
130
131# Do FULL fetch by disabling inherited filter-spec using --no-filter.
132# Verify we have all the new blobs.
133test_expect_success 'override inherited filter-spec using --no-filter' '
134 git -C pc1 fetch --no-filter origin &&
135 git -C pc1 rev-list --quiet --objects --missing=print \
136 main..origin/main >observed &&
137 test_line_count = 0 observed
138'
139
140# create new commits in "src" repo to establish a history on file.3.txt
141# and push to "srv.bare".
142test_expect_success 'push new commits to server for file.3.txt' '
143 for x in a b c d e f
144 do
145 echo "Mod file.3.txt $x" >>src/file.3.txt &&
146 git -C src add file.3.txt &&
147 git -C src commit -m "mod $x" || return 1
148 done &&
149 git -C src push -u srv main
150'
151
152# Do a partial fetch and then try to manually fetch the missing objects.
153# This can be used as the basis of a pre-command hook to bulk fetch objects
154# perhaps combined with a command in dry-run mode.
155test_expect_success 'manual prefetch of missing objects' '
156 git -C pc1 fetch --filter=blob:none origin &&
157
158 git -C pc1 rev-list --quiet --objects --missing=print \
159 main..origin/main >revs &&
160 awk -f print_1.awk revs |
161 sed "s/?//" |
162 sort >observed.oids &&
163
164 test_line_count = 6 observed.oids &&
165 git -C pc1 fetch-pack --stdin "file://$(pwd)/srv.bare" <observed.oids &&
166
167 git -C pc1 rev-list --quiet --objects --missing=print \
168 main..origin/main >revs &&
169 awk -f print_1.awk revs |
170 sed "s/?//" |
171 sort >observed.oids &&
172
173 test_line_count = 0 observed.oids
174'
175
176# create new commits in "src" repo to establish a history on file.4.txt
177# and push to "srv.bare".
178test_expect_success 'push new commits to server for file.4.txt' '
179 for x in a b c d e f
180 do
181 echo "Mod file.4.txt $x" >src/file.4.txt &&
182 if list_contains "a,b" "$x"; then
183 printf "%10000s" X >>src/file.4.txt
184 fi &&
185 if list_contains "c,d" "$x"; then
186 printf "%20000s" X >>src/file.4.txt
187 fi &&
188 git -C src add file.4.txt &&
189 git -C src commit -m "mod $x" || return 1
190 done &&
191 git -C src push -u srv main
192'
193
194# Do partial fetch to fetch smaller files; then verify that without --refetch
195# applying a new filter does not refetch missing large objects. Then use
196# --refetch to apply the new filter on existing commits. Test it under both
197# protocol v2 & v0.
198test_expect_success 'apply a different filter using --refetch' '
199 git -C pc1 fetch --filter=blob:limit=999 origin &&
200 git -C pc1 rev-list --quiet --objects --missing=print \
201 main..origin/main >observed &&
202 test_line_count = 4 observed &&
203
204 git -C pc1 fetch --filter=blob:limit=19999 --refetch origin &&
205 git -C pc1 rev-list --quiet --objects --missing=print \
206 main..origin/main >observed &&
207 test_line_count = 2 observed &&
208
209 git -c protocol.version=0 -C pc1 fetch --filter=blob:limit=29999 \
210 --refetch origin &&
211 git -C pc1 rev-list --quiet --objects --missing=print \
212 main..origin/main >observed &&
213 test_line_count = 0 observed
214'
215
216test_expect_success 'fetch --refetch works with a shallow clone' '
217 git clone --no-checkout --depth=1 --filter=blob:none "file://$(pwd)/srv.bare" pc1s &&
218 git -C pc1s rev-list --objects --missing=print HEAD >observed &&
219 test_line_count = 6 observed &&
220
221 GIT_TRACE=1 git -C pc1s fetch --filter=blob:limit=999 --refetch origin &&
222 git -C pc1s rev-list --objects --missing=print HEAD >observed &&
223 test_line_count = 6 observed
224'
225
226test_expect_success 'fetch --refetch triggers repacking' '
227 GIT_TRACE2_CONFIG_PARAMS=gc.autoPackLimit,maintenance.incremental-repack.auto &&
228 export GIT_TRACE2_CONFIG_PARAMS &&
229
230 GIT_TRACE2_EVENT="$PWD/trace1.event" \
231 git -C pc1 fetch --refetch origin &&
232 test_subcommand git maintenance run --auto --no-quiet --detach <trace1.event &&
233 grep \"param\":\"gc.autopacklimit\",\"value\":\"1\" trace1.event &&
234 grep \"param\":\"maintenance.incremental-repack.auto\",\"value\":\"-1\" trace1.event &&
235
236 GIT_TRACE2_EVENT="$PWD/trace2.event" \
237 git -c protocol.version=0 \
238 -c gc.autoPackLimit=0 \
239 -c maintenance.incremental-repack.auto=1234 \
240 -C pc1 fetch --refetch origin &&
241 test_subcommand git maintenance run --auto --no-quiet --detach <trace2.event &&
242 grep \"param\":\"gc.autopacklimit\",\"value\":\"0\" trace2.event &&
243 grep \"param\":\"maintenance.incremental-repack.auto\",\"value\":\"-1\" trace2.event &&
244
245 GIT_TRACE2_EVENT="$PWD/trace3.event" \
246 git -c protocol.version=0 \
247 -c gc.autoPackLimit=1234 \
248 -c maintenance.incremental-repack.auto=0 \
249 -C pc1 fetch --refetch origin &&
250 test_subcommand git maintenance run --auto --no-quiet --detach <trace3.event &&
251 grep \"param\":\"gc.autopacklimit\",\"value\":\"1\" trace3.event &&
252 grep \"param\":\"maintenance.incremental-repack.auto\",\"value\":\"0\" trace3.event
253'
254
255test_expect_success 'partial clone with transfer.fsckobjects=1 works with submodules' '
256 test_create_repo submodule &&
257 test_commit -C submodule mycommit &&
258
259 test_create_repo src_with_sub &&
260 git -C src_with_sub config uploadpack.allowfilter 1 &&
261 git -C src_with_sub config uploadpack.allowanysha1inwant 1 &&
262
263 test_config_global protocol.file.allow always &&
264
265 git -C src_with_sub submodule add "file://$(pwd)/submodule" mysub &&
266 git -C src_with_sub commit -m "commit with submodule" &&
267
268 git -c transfer.fsckobjects=1 \
269 clone --filter="blob:none" "file://$(pwd)/src_with_sub" dst &&
270 test_when_finished rm -rf dst
271'
272
273test_expect_success 'lazily fetched .gitmodules works' '
274 git clone --filter="blob:none" --no-checkout "file://$(pwd)/src_with_sub" dst &&
275 git -C dst fetch &&
276 test_when_finished rm -rf dst
277'
278
279test_expect_success 'partial clone with transfer.fsckobjects=1 uses index-pack --fsck-objects' '
280 git init src &&
281 test_commit -C src x &&
282 test_config -C src uploadpack.allowfilter 1 &&
283 test_config -C src uploadpack.allowanysha1inwant 1 &&
284
285 GIT_TRACE="$(pwd)/trace" git -c transfer.fsckobjects=1 \
286 clone --filter="blob:none" "file://$(pwd)/src" dst &&
287 grep "git index-pack.*--fsck-objects" trace
288'
289
290test_expect_success 'use fsck before and after manually fetching a missing subtree' '
291 # push new commit so server has a subtree
292 mkdir src/dir &&
293 echo "in dir" >src/dir/file.txt &&
294 git -C src add dir/file.txt &&
295 git -C src commit -m "file in dir" &&
296 git -C src push -u srv main &&
297 SUBTREE=$(git -C src rev-parse HEAD:dir) &&
298
299 rm -rf dst &&
300 git clone --no-checkout --filter=tree:0 "file://$(pwd)/srv.bare" dst &&
301 git -C dst fsck &&
302
303 # Make sure we only have commits, and all trees and blobs are missing.
304 git -C dst rev-list --missing=allow-any --objects main \
305 >fetched_objects &&
306 awk -f print_1.awk fetched_objects |
307 xargs -n1 git -C dst cat-file -t >fetched_types &&
308
309 sort -u fetched_types >unique_types.observed &&
310 echo commit >unique_types.expected &&
311 test_cmp unique_types.expected unique_types.observed &&
312
313 # Auto-fetch a tree with cat-file.
314 git -C dst cat-file -p $SUBTREE >tree_contents &&
315 grep file.txt tree_contents &&
316
317 # fsck still works after an auto-fetch of a tree.
318 git -C dst fsck &&
319
320 # Auto-fetch all remaining trees and blobs with --missing=error
321 git -C dst rev-list --missing=error --objects main >fetched_objects &&
322 test_line_count = 88 fetched_objects &&
323
324 awk -f print_1.awk fetched_objects |
325 xargs -n1 git -C dst cat-file -t >fetched_types &&
326
327 sort -u fetched_types >unique_types.observed &&
328 test_write_lines blob commit tree >unique_types.expected &&
329 test_cmp unique_types.expected unique_types.observed
330'
331
332test_expect_success 'implicitly construct combine: filter with repeated flags' '
333 GIT_TRACE=$(pwd)/trace git clone --bare \
334 --filter=blob:none --filter=tree:1 \
335 "file://$(pwd)/srv.bare" pc2 &&
336 grep "trace:.* git pack-objects .*--filter=combine:blob:none+tree:1" \
337 trace &&
338 git -C pc2 rev-list --objects --missing=allow-any HEAD >objects &&
339
340 # We should have gotten some root trees.
341 grep " $" objects &&
342 # Should not have gotten any non-root trees or blobs.
343 ! grep " ." objects &&
344
345 xargs -n 1 git -C pc2 cat-file -t <objects >types &&
346 sort -u types >unique_types.actual &&
347 test_write_lines commit tree >unique_types.expected &&
348 test_cmp unique_types.expected unique_types.actual
349'
350
351test_expect_success 'upload-pack complains of bogus filter config' '
352 printf 0000 |
353 test_must_fail git \
354 -c uploadpackfilter.tree.maxdepth \
355 upload-pack . >/dev/null 2>err &&
356 test_grep "unable to parse.*tree.maxdepth" err
357'
358
359test_expect_success 'upload-pack fails banned object filters' '
360 test_config -C srv.bare uploadpackfilter.blob:none.allow false &&
361 test_must_fail ok=sigpipe git clone --no-checkout --filter=blob:none \
362 "file://$(pwd)/srv.bare" pc3 2>err &&
363 test_grep "filter '\''blob:none'\'' not supported" err
364'
365
366test_expect_success 'upload-pack fails banned combine object filters' '
367 test_config -C srv.bare uploadpackfilter.allow false &&
368 test_config -C srv.bare uploadpackfilter.combine.allow true &&
369 test_config -C srv.bare uploadpackfilter.tree.allow true &&
370 test_config -C srv.bare uploadpackfilter.blob:none.allow false &&
371 test_must_fail ok=sigpipe git clone --no-checkout --filter=tree:1 \
372 --filter=blob:none "file://$(pwd)/srv.bare" pc3 2>err &&
373 test_grep "filter '\''blob:none'\'' not supported" err
374'
375
376test_expect_success 'upload-pack fails banned object filters with fallback' '
377 test_config -C srv.bare uploadpackfilter.allow false &&
378 test_must_fail ok=sigpipe git clone --no-checkout --filter=blob:none \
379 "file://$(pwd)/srv.bare" pc3 2>err &&
380 test_grep "filter '\''blob:none'\'' not supported" err
381'
382
383test_expect_success 'upload-pack limits tree depth filters' '
384 test_config -C srv.bare uploadpackfilter.allow false &&
385 test_config -C srv.bare uploadpackfilter.tree.allow true &&
386 test_config -C srv.bare uploadpackfilter.tree.maxDepth 0 &&
387 test_must_fail ok=sigpipe git clone --no-checkout --filter=tree:1 \
388 "file://$(pwd)/srv.bare" pc3 2>err &&
389 test_grep "tree filter allows max depth 0, but got 1" err &&
390
391 git clone --no-checkout --filter=tree:0 "file://$(pwd)/srv.bare" pc4 &&
392
393 test_config -C srv.bare uploadpackfilter.tree.maxDepth 5 &&
394 git clone --no-checkout --filter=tree:5 "file://$(pwd)/srv.bare" pc5 &&
395 test_must_fail ok=sigpipe git clone --no-checkout --filter=tree:6 \
396 "file://$(pwd)/srv.bare" pc6 2>err &&
397 test_grep "tree filter allows max depth 5, but got 6" err
398'
399
400test_expect_success 'partial clone fetches blobs pointed to by refs even if normally filtered out' '
401 rm -rf src dst &&
402 git init src &&
403 test_commit -C src x &&
404 test_config -C src uploadpack.allowfilter 1 &&
405 test_config -C src uploadpack.allowanysha1inwant 1 &&
406
407 # Create a tag pointing to a blob.
408 BLOB=$(echo blob-contents | git -C src hash-object --stdin -w) &&
409 git -C src tag myblob "$BLOB" &&
410
411 git clone --filter="blob:none" "file://$(pwd)/src" dst 2>err &&
412 ! grep "does not point to a valid object" err &&
413 git -C dst fsck
414'
415
416test_expect_success 'fetch what is specified on CLI even if already promised' '
417 rm -rf src dst.git &&
418 git init src &&
419 test_commit -C src foo &&
420 test_config -C src uploadpack.allowfilter 1 &&
421 test_config -C src uploadpack.allowanysha1inwant 1 &&
422
423 git hash-object --stdin <src/foo.t >blob &&
424
425 git clone --bare --filter=blob:none "file://$(pwd)/src" dst.git &&
426 git -C dst.git rev-list --objects --quiet --missing=print HEAD >missing_before &&
427 grep "?$(cat blob)" missing_before &&
428 git -C dst.git fetch origin $(cat blob) &&
429 git -C dst.git rev-list --objects --quiet --missing=print HEAD >missing_after &&
430 ! grep "?$(cat blob)" missing_after
431'
432
433test_expect_success 'setup src repo for sparse filter' '
434 git init sparse-src &&
435 git -C sparse-src config --local uploadpack.allowfilter 1 &&
436 git -C sparse-src config --local uploadpack.allowanysha1inwant 1 &&
437 test_commit -C sparse-src one &&
438 test_commit -C sparse-src two &&
439 echo /one.t >sparse-src/only-one &&
440 git -C sparse-src add . &&
441 git -C sparse-src commit -m "add sparse checkout files"
442'
443
444test_expect_success 'partial clone with sparse filter succeeds' '
445 rm -rf dst.git &&
446 git clone --no-local --bare \
447 --filter=sparse:oid=main:only-one \
448 sparse-src dst.git &&
449 (
450 cd dst.git &&
451 git rev-list --objects --missing=print HEAD >out &&
452 grep "^$(git rev-parse HEAD:one.t)" out &&
453 grep "^?$(git rev-parse HEAD:two.t)" out
454 )
455'
456
457test_expect_success 'partial clone with unresolvable sparse filter fails cleanly' '
458 rm -rf dst.git &&
459 test_must_fail git clone --no-local --bare \
460 --filter=sparse:oid=main:no-such-name \
461 sparse-src dst.git 2>err &&
462 test_grep "unable to access sparse blob in .main:no-such-name" err &&
463 test_must_fail git clone --no-local --bare \
464 --filter=sparse:oid=main \
465 sparse-src dst.git 2>err &&
466 test_grep "unable to parse sparse filter data in" err
467'
468
469setup_triangle () {
470 rm -rf big-blob.txt server client promisor-remote &&
471
472 printf "line %d\n" $(test_seq 1 100) >big-blob.txt &&
473
474 # Create a server with 2 commits: a commit with a big tree and a child
475 # commit with an incremental change. Also, create a partial clone
476 # client that only contains the first commit.
477 git init server &&
478 git -C server config --local uploadpack.allowfilter 1 &&
479 for i in $(test_seq 1 100)
480 do
481 echo "make the tree big" >server/file$i &&
482 git -C server add file$i || return 1
483 done &&
484 git -C server commit -m "initial" &&
485 git clone --bare --filter=tree:0 "file://$(pwd)/server" client &&
486 echo another line >>server/file1 &&
487 git -C server commit -am "incremental change" &&
488
489 # Create a promisor remote that only contains the tree and blob from
490 # the first commit.
491 git init promisor-remote &&
492 git -C server config --local uploadpack.allowanysha1inwant 1 &&
493 TREE_HASH=$(git -C server rev-parse HEAD~1^{tree}) &&
494 git -C promisor-remote fetch --keep "file://$(pwd)/server" "$TREE_HASH" &&
495 git -C promisor-remote count-objects -v >object-count &&
496 test_grep "count: 0" object-count &&
497 test_grep "in-pack: 2" object-count &&
498
499 # Set it as the promisor remote of client. Thus, whenever
500 # the client lazy fetches, the lazy fetch will succeed only if it is
501 # for this tree or blob.
502 test_commit -C promisor-remote one && # so that ref advertisement is not empty
503 git -C promisor-remote config --local uploadpack.allowanysha1inwant 1 &&
504 git -C client remote set-url origin "file://$(pwd)/promisor-remote"
505}
506
507# NEEDSWORK: The tests beginning with "fetch lazy-fetches" below only
508# test that "fetch" avoid fetching trees and blobs, but not commits or
509# tags. Revisit this if Git is ever taught to support partial clones
510# with commits and/or tags filtered out.
511
512test_expect_success 'fetch lazy-fetches only to resolve deltas' '
513 setup_triangle &&
514
515 # Exercise to make sure it works. Git will not fetch anything from the
516 # promisor remote other than for the big tree (because it needs to
517 # resolve the delta).
518 GIT_TRACE_PACKET="$(pwd)/trace" git -C client \
519 fetch "file://$(pwd)/server" main &&
520
521 # Verify the assumption that the client needed to fetch the delta base
522 # to resolve the delta.
523 git -C server rev-parse HEAD~1^{tree} >hash &&
524 grep "want $(cat hash)" trace
525'
526
527test_expect_success 'fetch lazy-fetches only to resolve deltas, protocol v2' '
528 setup_triangle &&
529
530 git -C server config --local protocol.version 2 &&
531 git -C client config --local protocol.version 2 &&
532 git -C promisor-remote config --local protocol.version 2 &&
533
534 # Exercise to make sure it works. Git will not fetch anything from the
535 # promisor remote other than for the big blob (because it needs to
536 # resolve the delta).
537 GIT_TRACE_PACKET="$(pwd)/trace" git -C client \
538 fetch "file://$(pwd)/server" main &&
539
540 # Verify that protocol version 2 was used.
541 grep "fetch< version 2" trace &&
542
543 # Verify the assumption that the client needed to fetch the delta base
544 # to resolve the delta.
545 git -C server rev-parse HEAD~1^{tree} >hash &&
546 grep "want $(cat hash)" trace
547'
548
549test_expect_success 'fetch does not lazy-fetch missing targets of its refs' '
550 rm -rf server client trace &&
551
552 test_create_repo server &&
553 test_config -C server uploadpack.allowfilter 1 &&
554 test_config -C server uploadpack.allowanysha1inwant 1 &&
555 test_commit -C server foo &&
556
557 git clone --filter=blob:none "file://$(pwd)/server" client &&
558 # Make all refs point to nothing by deleting all objects.
559 rm client/.git/objects/pack/* &&
560
561 test_commit -C server bar &&
562 GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch \
563 --no-tags --recurse-submodules=no \
564 origin refs/tags/bar &&
565 FOO_HASH=$(git -C server rev-parse foo) &&
566 ! grep "want $FOO_HASH" trace
567'
568
569# The following two tests must be in this order. It is important that
570# the srv.bare repository did not have tags during clone, but has tags
571# in the fetch.
572
573test_expect_success 'verify fetch succeeds when asking for new tags' '
574 git clone --filter=blob:none "file://$(pwd)/srv.bare" tag-test &&
575 for i in I J K
576 do
577 test_commit -C src $i &&
578 git -C src branch $i || return 1
579 done &&
580 git -C srv.bare fetch --tags origin +refs/heads/*:refs/heads/* &&
581 git -C tag-test -c protocol.version=2 fetch --tags origin
582'
583
584test_expect_success 'verify fetch downloads only one pack when updating refs' '
585 git clone --filter=blob:none "file://$(pwd)/srv.bare" pack-test &&
586 ls pack-test/.git/objects/pack/*pack >pack-list &&
587 test_line_count = 2 pack-list &&
588 for i in A B C
589 do
590 test_commit -C src $i &&
591 git -C src branch $i || return 1
592 done &&
593 git -C srv.bare fetch origin +refs/heads/*:refs/heads/* &&
594 git -C pack-test fetch origin &&
595 ls pack-test/.git/objects/pack/*pack >pack-list &&
596 test_line_count = 3 pack-list
597'
598
599test_expect_success 'single-branch tag following respects partial clone' '
600 git clone --single-branch -b B --filter=blob:none \
601 "file://$(pwd)/srv.bare" single &&
602 git -C single rev-parse --verify refs/tags/B &&
603 git -C single rev-parse --verify refs/tags/A &&
604 test_must_fail git -C single rev-parse --verify refs/tags/C
605'
606
607test_expect_success 'fetch from a partial clone, protocol v0' '
608 rm -rf server client trace &&
609
610 # Pretend that the server is a partial clone
611 git init server &&
612 git -C server remote add a_remote "file://$(pwd)/" &&
613 test_config -C server core.repositoryformatversion 1 &&
614 test_config -C server extensions.partialclone a_remote &&
615 test_config -C server protocol.version 0 &&
616 test_commit -C server foo &&
617
618 # Fetch from the server
619 git init client &&
620 test_config -C client protocol.version 0 &&
621 test_commit -C client bar &&
622 GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch "file://$(pwd)/server" &&
623 ! grep "version 2" trace
624'
625
626test_expect_success 'fetch from a partial clone, protocol v2' '
627 rm -rf server client trace &&
628
629 # Pretend that the server is a partial clone
630 git init server &&
631 git -C server remote add a_remote "file://$(pwd)/" &&
632 test_config -C server core.repositoryformatversion 1 &&
633 test_config -C server extensions.partialclone a_remote &&
634 test_config -C server protocol.version 2 &&
635 test_commit -C server foo &&
636
637 # Fetch from the server
638 git init client &&
639 test_config -C client protocol.version 2 &&
640 test_commit -C client bar &&
641 GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch "file://$(pwd)/server" &&
642 grep "version 2" trace
643'
644
645test_expect_success 'repack does not loosen promisor objects' '
646 rm -rf client trace &&
647 git clone --bare --filter=blob:none "file://$(pwd)/srv.bare" client &&
648 test_when_finished "rm -rf client trace" &&
649 GIT_TRACE2_PERF="$(pwd)/trace" git -C client repack -A -d &&
650 grep "loosen_unused_packed_objects/loosened:0" trace
651'
652
653test_expect_success 'lazy-fetch in submodule succeeds' '
654 # setup
655 test_config_global protocol.file.allow always &&
656
657 test_when_finished "rm -rf src-sub" &&
658 git init src-sub &&
659 git -C src-sub config uploadpack.allowfilter 1 &&
660 git -C src-sub config uploadpack.allowanysha1inwant 1 &&
661
662 # This blob must be missing in the subsequent commit.
663 echo foo >src-sub/file &&
664 git -C src-sub add file &&
665 git -C src-sub commit -m "submodule one" &&
666 SUB_ONE=$(git -C src-sub rev-parse HEAD) &&
667
668 echo bar >src-sub/file &&
669 git -C src-sub add file &&
670 git -C src-sub commit -m "submodule two" &&
671 SUB_TWO=$(git -C src-sub rev-parse HEAD) &&
672
673 test_when_finished "rm -rf src-super" &&
674 git init src-super &&
675 git -C src-super config uploadpack.allowfilter 1 &&
676 git -C src-super config uploadpack.allowanysha1inwant 1 &&
677 git -C src-super submodule add ../src-sub src-sub &&
678
679 git -C src-super/src-sub checkout $SUB_ONE &&
680 git -C src-super add src-sub &&
681 git -C src-super commit -m "superproject one" &&
682
683 git -C src-super/src-sub checkout $SUB_TWO &&
684 git -C src-super add src-sub &&
685 git -C src-super commit -m "superproject two" &&
686
687 # the fetch
688 test_when_finished "rm -rf client" &&
689 git clone --filter=blob:none --also-filter-submodules \
690 --recurse-submodules "file://$(pwd)/src-super" client &&
691
692 # Trigger lazy-fetch from the superproject
693 git -C client restore --recurse-submodules --source=HEAD^ :/
694'
695
696test_expect_success 'after fetching descendants of non-promisor commits, gc works' '
697 # Setup
698 git init full &&
699 git -C full config uploadpack.allowfilter 1 &&
700 git -C full config uploadpack.allowanysha1inwant 1 &&
701 touch full/foo &&
702 git -C full add foo &&
703 git -C full commit -m "commit 1" &&
704 git -C full checkout --detach &&
705
706 # Partial clone and push commit to remote
707 git clone "file://$(pwd)/full" --filter=blob:none partial &&
708 echo "hello" > partial/foo &&
709 git -C partial commit -a -m "commit 2" &&
710 git -C partial push &&
711
712 # gc in partial repo
713 git -C partial gc --prune=now &&
714
715 # Create another commit in normal repo
716 git -C full checkout main &&
717 echo " world" >> full/foo &&
718 git -C full commit -a -m "commit 3" &&
719
720 # Pull from remote in partial repo, and run gc again
721 git -C partial pull &&
722 git -C partial gc --prune=now
723'
724
725
726. "$TEST_DIRECTORY"/lib-httpd.sh
727start_httpd
728
729# Converts bytes into their hexadecimal representation. For example,
730# "printf 'ab\r\n' | hex_unpack" results in '61620d0a'.
731hex_unpack () {
732 perl -e '$/ = undef; $input = <>; print unpack("H2" x length($input), $input)'
733}
734
735# Inserts $1 at the start of the string and every 2 characters thereafter.
736intersperse () {
737 sed 's/\(..\)/'$1'\1/g'
738}
739
740# Create a one-time-script command to replace the existing packfile with $1.
741replace_packfile () {
742 cp "$1" one-time-pack &&
743 write_script "$HTTPD_ROOT_PATH/one-time-script" <<-EOF
744 if grep packfile "\$1" >/dev/null
745 then
746 sed '/packfile/q' "\$1" &&
747 # The protocol requires that the packfile be sent in sideband
748 # 1, hence the extra \001 byte at the beginning.
749 printf "%04x\001" \$((\$(wc -c <"$PWD/one-time-pack") + 5)) &&
750 cat "$PWD/one-time-pack" &&
751 printf "0000"
752 else
753 cat "\$1"
754 fi
755 EOF
756}
757
758test_expect_success 'upon cloning, check that all refs point to objects' '
759 SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
760 rm -rf "$SERVER" repo &&
761 test_create_repo "$SERVER" &&
762 test_commit -C "$SERVER" foo &&
763 test_config -C "$SERVER" uploadpack.allowfilter 1 &&
764 test_config -C "$SERVER" uploadpack.allowanysha1inwant 1 &&
765
766 # Create a tag pointing to a blob.
767 BLOB=$(echo blob-contents | git -C "$SERVER" hash-object --stdin -w) &&
768 git -C "$SERVER" tag myblob "$BLOB" &&
769
770 # Craft a packfile not including that blob.
771 git -C "$SERVER" rev-parse HEAD |
772 git -C "$SERVER" pack-objects --stdout >incomplete.pack &&
773
774 # Replace the existing packfile with the crafted one. The protocol
775 # requires that the packfile be sent in sideband 1, hence the extra
776 # \x01 byte at the beginning.
777 replace_packfile incomplete.pack &&
778
779 # Use protocol v2 because the perl command looks for the "packfile"
780 # section header.
781 test_config -C "$SERVER" protocol.version 2 &&
782 test_must_fail git -c protocol.version=2 clone \
783 --filter=blob:none $HTTPD_URL/one_time_script/server repo 2>err &&
784
785 test_grep "did not send all necessary objects" err &&
786
787 # Ensure that the one-time-script script was used.
788 ! test -e "$HTTPD_ROOT_PATH/one-time-script"
789'
790
791test_expect_success 'when partial cloning, tolerate server not sending target of tag' '
792 SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
793 rm -rf "$SERVER" repo &&
794 test_create_repo "$SERVER" &&
795 test_commit -C "$SERVER" foo &&
796 test_config -C "$SERVER" uploadpack.allowfilter 1 &&
797 test_config -C "$SERVER" uploadpack.allowanysha1inwant 1 &&
798
799 # Create an annotated tag pointing to a blob.
800 BLOB=$(echo blob-contents | git -C "$SERVER" hash-object --stdin -w) &&
801 git -C "$SERVER" tag -m message -a myblob "$BLOB" &&
802
803 # Craft a packfile including the tag, but not the blob it points to.
804 # Also, omit objects referenced from HEAD in order to force a second
805 # fetch (to fetch missing objects) upon the automatic checkout that
806 # happens after a clone.
807 printf "%s\n%s\n--not\n%s\n%s\n" \
808 $(git -C "$SERVER" rev-parse HEAD) \
809 $(git -C "$SERVER" rev-parse myblob) \
810 $(git -C "$SERVER" rev-parse HEAD^{tree}) \
811 $(git -C "$SERVER" rev-parse myblob^{blob}) |
812 git -C "$SERVER" pack-objects --thin --stdout >incomplete.pack &&
813
814 # Replace the existing packfile with the crafted one. The protocol
815 # requires that the packfile be sent in sideband 1, hence the extra
816 # \x01 byte at the beginning.
817 replace_packfile incomplete.pack &&
818
819 # Use protocol v2 because the perl command looks for the "packfile"
820 # section header.
821 test_config -C "$SERVER" protocol.version 2 &&
822
823 # Exercise to make sure it works.
824 git -c protocol.version=2 clone \
825 --filter=blob:none $HTTPD_URL/one_time_script/server repo 2> err &&
826 ! grep "missing object referenced by" err &&
827
828 # Ensure that the one-time-script script was used.
829 ! test -e "$HTTPD_ROOT_PATH/one-time-script"
830'
831
832test_expect_success PERL_TEST_HELPERS 'tolerate server sending REF_DELTA against missing promisor objects' '
833 SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
834 rm -rf "$SERVER" repo &&
835 test_create_repo "$SERVER" &&
836 test_config -C "$SERVER" uploadpack.allowfilter 1 &&
837 test_config -C "$SERVER" uploadpack.allowanysha1inwant 1 &&
838
839 # Create a commit with 2 blobs to be used as delta bases.
840 for i in $(test_seq 10)
841 do
842 echo "this is a line" >>"$SERVER/foo.txt" &&
843 echo "this is another line" >>"$SERVER/have.txt" || return 1
844 done &&
845 git -C "$SERVER" add foo.txt have.txt &&
846 git -C "$SERVER" commit -m bar &&
847 git -C "$SERVER" rev-parse HEAD:foo.txt >deltabase_missing &&
848 git -C "$SERVER" rev-parse HEAD:have.txt >deltabase_have &&
849
850 # Clone. The client has deltabase_have but not deltabase_missing.
851 git -c protocol.version=2 clone --no-checkout \
852 --filter=blob:none $HTTPD_URL/one_time_script/server repo &&
853 git -C repo hash-object -w -- "$SERVER/have.txt" &&
854
855 # Sanity check to ensure that the client does not have
856 # deltabase_missing.
857 git -C repo rev-list --objects --ignore-missing \
858 -- $(cat deltabase_missing) >objlist &&
859 test_line_count = 0 objlist &&
860
861 # Another commit. This commit will be fetched by the client.
862 echo "abcdefghijklmnopqrstuvwxyz" >>"$SERVER/foo.txt" &&
863 echo "abcdefghijklmnopqrstuvwxyz" >>"$SERVER/have.txt" &&
864 git -C "$SERVER" add foo.txt have.txt &&
865 git -C "$SERVER" commit -m baz &&
866
867 # Pack a thin pack containing, among other things, HEAD:foo.txt
868 # delta-ed against HEAD^:foo.txt and HEAD:have.txt delta-ed against
869 # HEAD^:have.txt.
870 printf "%s\n--not\n%s\n" \
871 $(git -C "$SERVER" rev-parse HEAD) \
872 $(git -C "$SERVER" rev-parse HEAD^) |
873 git -C "$SERVER" pack-objects --thin --stdout >thin.pack &&
874
875 # Ensure that the pack contains one delta against HEAD^:foo.txt. Since
876 # the delta contains at least 26 novel characters, the size cannot be
877 # contained in 4 bits, so the object header will take up 2 bytes. The
878 # most significant nybble of the first byte is 0b1111 (0b1 to indicate
879 # that the header continues, and 0b111 to indicate REF_DELTA), followed
880 # by any 3 nybbles, then the OID of the delta base.
881 printf "f.,..%s" $(intersperse "," <deltabase_missing) >want &&
882 hex_unpack <thin.pack | intersperse "," >have &&
883 grep $(cat want) have &&
884
885 # Ensure that the pack contains one delta against HEAD^:have.txt,
886 # similar to the above.
887 printf "f.,..%s" $(intersperse "," <deltabase_have) >want &&
888 hex_unpack <thin.pack | intersperse "," >have &&
889 grep $(cat want) have &&
890
891 replace_packfile thin.pack &&
892
893 # Use protocol v2 because the perl command looks for the "packfile"
894 # section header.
895 test_config -C "$SERVER" protocol.version 2 &&
896
897 # Fetch the thin pack and ensure that index-pack is able to handle the
898 # REF_DELTA object with a missing promisor delta base.
899 GIT_TRACE_PACKET="$(pwd)/trace" git -C repo -c protocol.version=2 fetch &&
900
901 # Ensure that the missing delta base was directly fetched, but not the
902 # one that the client has.
903 grep "want $(cat deltabase_missing)" trace &&
904 ! grep "want $(cat deltabase_have)" trace &&
905
906 # Ensure that the one-time-script script was used.
907 ! test -e "$HTTPD_ROOT_PATH/one-time-script"
908'
909
910# DO NOT add non-httpd-specific tests here, because the last part of this
911# test script is only executed when httpd is available and enabled.
912
913test_done