t/t5702-protocol-v2.sh

   1 #!/bin/sh
   2
   3 test_description='test git wire-protocol version 2'
   4
   5 TEST_NO_CREATE_REPO=1
   6
   7 . ./test-lib.sh
   8
   9 # Test protocol v2 with 'git://' transport
  10 #
  11 . "$TEST_DIRECTORY"/lib-git-daemon.sh
  12 start_git_daemon --export-all --enable=receive-pack
  13 daemon_parent=$GIT_DAEMON_DOCUMENT_ROOT_PATH/parent
  14
  15 test_expect_success 'create repo to be served by git-daemon' '
  16         git init "$daemon_parent" &&
  17         test_commit -C "$daemon_parent" one
  18 '
  19
  20 test_expect_success 'list refs with git:// using protocol v2' '
  21         test_when_finished "rm -f log" &&
  22
  23         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
  24                 ls-remote --symref "$GIT_DAEMON_URL/parent" >actual &&
  25
  26         # Client requested to use protocol v2
  27         grep "git> .*\\\0\\\0version=2\\\0$" log &&
  28         # Server responded using protocol v2
  29         grep "git< version 2" log &&
  30
  31         git ls-remote --symref "$GIT_DAEMON_URL/parent" >expect &&
  32         test_cmp expect actual
  33 '
  34
  35 test_expect_success 'ref advertisement is filtered with ls-remote using protocol v2' '
  36         test_when_finished "rm -f log" &&
  37
  38         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
  39                 ls-remote "$GIT_DAEMON_URL/parent" master >actual &&
  40
  41         cat >expect <<-EOF &&
  42         $(git -C "$daemon_parent" rev-parse refs/heads/master)$(printf "\t")refs/heads/master
  43         EOF
  44
  45         test_cmp expect actual
  46 '
  47
  48 test_expect_success 'clone with git:// using protocol v2' '
  49         test_when_finished "rm -f log" &&
  50
  51         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
  52                 clone "$GIT_DAEMON_URL/parent" daemon_child &&
  53
  54         git -C daemon_child log -1 --format=%s >actual &&
  55         git -C "$daemon_parent" log -1 --format=%s >expect &&
  56         test_cmp expect actual &&
  57
  58         # Client requested to use protocol v2
  59         grep "clone> .*\\\0\\\0version=2\\\0$" log &&
  60         # Server responded using protocol v2
  61         grep "clone< version 2" log
  62 '
  63
  64 test_expect_success 'fetch with git:// using protocol v2' '
  65         test_when_finished "rm -f log" &&
  66
  67         test_commit -C "$daemon_parent" two &&
  68
  69         GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
  70                 fetch &&
  71
  72         git -C daemon_child log -1 --format=%s origin/master >actual &&
  73         git -C "$daemon_parent" log -1 --format=%s >expect &&
  74         test_cmp expect actual &&
  75
  76         # Client requested to use protocol v2
  77         grep "fetch> .*\\\0\\\0version=2\\\0$" log &&
  78         # Server responded using protocol v2
  79         grep "fetch< version 2" log
  80 '
  81
  82 test_expect_success 'fetch by hash without tag following with protocol v2 does not list refs' '
  83         test_when_finished "rm -f log" &&
  84
  85         test_commit -C "$daemon_parent" two_a &&
  86         git -C "$daemon_parent" rev-parse two_a >two_a_hash &&
  87
  88         GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
  89                 fetch --no-tags origin $(cat two_a_hash) &&
  90
  91         grep "fetch< version 2" log &&
  92         ! grep "fetch> command=ls-refs" log
  93 '
  94
  95 test_expect_success 'pull with git:// using protocol v2' '
  96         test_when_finished "rm -f log" &&
  97
  98         GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
  99                 pull &&
 100
 101         git -C daemon_child log -1 --format=%s >actual &&
 102         git -C "$daemon_parent" log -1 --format=%s >expect &&
 103         test_cmp expect actual &&
 104
 105         # Client requested to use protocol v2
 106         grep "fetch> .*\\\0\\\0version=2\\\0$" log &&
 107         # Server responded using protocol v2
 108         grep "fetch< version 2" log
 109 '
 110
 111 test_expect_success 'push with git:// and a config of v2 does not request v2' '
 112         test_when_finished "rm -f log" &&
 113
 114         # Till v2 for push is designed, make sure that if a client has
 115         # protocol.version configured to use v2, that the client instead falls
 116         # back and uses v0.
 117
 118         test_commit -C daemon_child three &&
 119
 120         # Push to another branch, as the target repository has the
 121         # master branch checked out and we cannot push into it.
 122         GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \
 123                 push origin HEAD:client_branch &&
 124
 125         git -C daemon_child log -1 --format=%s >actual &&
 126         git -C "$daemon_parent" log -1 --format=%s client_branch >expect &&
 127         test_cmp expect actual &&
 128
 129         # Client requested to use protocol v2
 130         ! grep "push> .*\\\0\\\0version=2\\\0$" log &&
 131         # Server responded using protocol v2
 132         ! grep "push< version 2" log
 133 '
 134
 135 stop_git_daemon
 136
 137 # Test protocol v2 with 'file://' transport
 138 #
 139 test_expect_success 'create repo to be served by file:// transport' '
 140         git init file_parent &&
 141         test_commit -C file_parent one
 142 '
 143
 144 test_expect_success 'list refs with file:// using protocol v2' '
 145         test_when_finished "rm -f log" &&
 146
 147         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
 148                 ls-remote --symref "file://$(pwd)/file_parent" >actual &&
 149
 150         # Server responded using protocol v2
 151         grep "git< version 2" log &&
 152
 153         git ls-remote --symref "file://$(pwd)/file_parent" >expect &&
 154         test_cmp expect actual
 155 '
 156
 157 test_expect_success 'ref advertisement is filtered with ls-remote using protocol v2' '
 158         test_when_finished "rm -f log" &&
 159
 160         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
 161                 ls-remote "file://$(pwd)/file_parent" master >actual &&
 162
 163         cat >expect <<-EOF &&
 164         $(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master
 165         EOF
 166
 167         test_cmp expect actual
 168 '
 169
 170 test_expect_success 'server-options are sent when using ls-remote' '
 171         test_when_finished "rm -f log" &&
 172
 173         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
 174                 ls-remote -o hello -o world "file://$(pwd)/file_parent" master >actual &&
 175
 176         cat >expect <<-EOF &&
 177         $(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master
 178         EOF
 179
 180         test_cmp expect actual &&
 181         grep "server-option=hello" log &&
 182         grep "server-option=world" log
 183 '
 184
 185 test_expect_success 'warn if using server-option with ls-remote with legacy protocol' '
 186         test_must_fail env GIT_TEST_PROTOCOL_VERSION=0 git -c protocol.version=0 \
 187                 ls-remote -o hello -o world "file://$(pwd)/file_parent" master 2>err &&
 188
 189         test_i18ngrep "see protocol.version in" err &&
 190         test_i18ngrep "server options require protocol version 2 or later" err
 191 '
 192
 193 test_expect_success 'clone with file:// using protocol v2' '
 194         test_when_finished "rm -f log" &&
 195
 196         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
 197                 clone "file://$(pwd)/file_parent" file_child &&
 198
 199         git -C file_child log -1 --format=%s >actual &&
 200         git -C file_parent log -1 --format=%s >expect &&
 201         test_cmp expect actual &&
 202
 203         # Server responded using protocol v2
 204         grep "clone< version 2" log &&
 205
 206         # Client sent ref-prefixes to filter the ref-advertisement
 207         grep "ref-prefix HEAD" log &&
 208         grep "ref-prefix refs/heads/" log &&
 209         grep "ref-prefix refs/tags/" log
 210 '
 211
 212 test_expect_success 'fetch with file:// using protocol v2' '
 213         test_when_finished "rm -f log" &&
 214
 215         test_commit -C file_parent two &&
 216
 217         GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
 218                 fetch origin &&
 219
 220         git -C file_child log -1 --format=%s origin/master >actual &&
 221         git -C file_parent log -1 --format=%s >expect &&
 222         test_cmp expect actual &&
 223
 224         # Server responded using protocol v2
 225         grep "fetch< version 2" log
 226 '
 227
 228 test_expect_success 'ref advertisement is filtered during fetch using protocol v2' '
 229         test_when_finished "rm -f log" &&
 230
 231         test_commit -C file_parent three &&
 232         git -C file_parent branch unwanted-branch three &&
 233
 234         GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
 235                 fetch origin master &&
 236
 237         git -C file_child log -1 --format=%s origin/master >actual &&
 238         git -C file_parent log -1 --format=%s >expect &&
 239         test_cmp expect actual &&
 240
 241         grep "refs/heads/master" log &&
 242         ! grep "refs/heads/unwanted-branch" log
 243 '
 244
 245 test_expect_success 'server-options are sent when fetching' '
 246         test_when_finished "rm -f log" &&
 247
 248         test_commit -C file_parent four &&
 249
 250         GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
 251                 fetch -o hello -o world origin master &&
 252
 253         git -C file_child log -1 --format=%s origin/master >actual &&
 254         git -C file_parent log -1 --format=%s >expect &&
 255         test_cmp expect actual &&
 256
 257         grep "server-option=hello" log &&
 258         grep "server-option=world" log
 259 '
 260
 261 test_expect_success 'warn if using server-option with fetch with legacy protocol' '
 262         test_when_finished "rm -rf temp_child" &&
 263
 264         git init temp_child &&
 265
 266         test_must_fail env GIT_TEST_PROTOCOL_VERSION=0 git -C temp_child -c protocol.version=0 \
 267                 fetch -o hello -o world "file://$(pwd)/file_parent" master 2>err &&
 268
 269         test_i18ngrep "see protocol.version in" err &&
 270         test_i18ngrep "server options require protocol version 2 or later" err
 271 '
 272
 273 test_expect_success 'server-options are sent when cloning' '
 274         test_when_finished "rm -rf log myclone" &&
 275
 276         GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
 277                 clone --server-option=hello --server-option=world \
 278                 "file://$(pwd)/file_parent" myclone &&
 279
 280         grep "server-option=hello" log &&
 281         grep "server-option=world" log
 282 '
 283
 284 test_expect_success 'warn if using server-option with clone with legacy protocol' '
 285         test_when_finished "rm -rf myclone" &&
 286
 287         test_must_fail env GIT_TEST_PROTOCOL_VERSION=0 git -c protocol.version=0 \
 288                 clone --server-option=hello --server-option=world \
 289                 "file://$(pwd)/file_parent" myclone 2>err &&
 290
 291         test_i18ngrep "see protocol.version in" err &&
 292         test_i18ngrep "server options require protocol version 2 or later" err
 293 '
 294
 295 test_expect_success 'upload-pack respects config using protocol v2' '
 296         git init server &&
 297         write_script server/.git/hook <<-\EOF &&
 298                 touch hookout
 299                 "$@"
 300         EOF
 301         test_commit -C server one &&
 302
 303         test_config_global uploadpack.packobjectshook ./hook &&
 304         test_path_is_missing server/.git/hookout &&
 305         git -c protocol.version=2 clone "file://$(pwd)/server" client &&
 306         test_path_is_file server/.git/hookout
 307 '
 308
 309 test_expect_success 'setup filter tests' '
 310         rm -rf server client &&
 311         git init server &&
 312
 313         # 1 commit to create a file, and 1 commit to modify it
 314         test_commit -C server message1 a.txt &&
 315         test_commit -C server message2 a.txt &&
 316         git -C server config protocol.version 2 &&
 317         git -C server config uploadpack.allowfilter 1 &&
 318         git -C server config uploadpack.allowanysha1inwant 1 &&
 319         git -C server config protocol.version 2
 320 '
 321
 322 test_expect_success 'partial clone' '
 323         GIT_TRACE_PACKET="$(pwd)/trace" git -c protocol.version=2 \
 324                 clone --filter=blob:none "file://$(pwd)/server" client &&
 325         grep "version 2" trace &&
 326
 327         # Ensure that the old version of the file is missing
 328         git -C client rev-list --quiet --objects --missing=print master \
 329                 >observed.oids &&
 330         grep "$(git -C server rev-parse message1:a.txt)" observed.oids &&
 331
 332         # Ensure that client passes fsck
 333         git -C client fsck
 334 '
 335
 336 test_expect_success 'dynamically fetch missing object' '
 337         rm "$(pwd)/trace" &&
 338         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 339                 cat-file -p $(git -C server rev-parse message1:a.txt) &&
 340         grep "version 2" trace
 341 '
 342
 343 test_expect_success 'when dynamically fetching missing object, do not list refs' '
 344         ! grep "git> command=ls-refs" trace
 345 '
 346
 347 test_expect_success 'partial fetch' '
 348         rm -rf client "$(pwd)/trace" &&
 349         git init client &&
 350         SERVER="file://$(pwd)/server" &&
 351         test_config -C client extensions.partialClone "$SERVER" &&
 352
 353         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 354                 fetch --filter=blob:none "$SERVER" master:refs/heads/other &&
 355         grep "version 2" trace &&
 356
 357         # Ensure that the old version of the file is missing
 358         git -C client rev-list --quiet --objects --missing=print other \
 359                 >observed.oids &&
 360         grep "$(git -C server rev-parse message1:a.txt)" observed.oids &&
 361
 362         # Ensure that client passes fsck
 363         git -C client fsck
 364 '
 365
 366 test_expect_success 'do not advertise filter if not configured to do so' '
 367         SERVER="file://$(pwd)/server" &&
 368
 369         rm "$(pwd)/trace" &&
 370         git -C server config uploadpack.allowfilter 1 &&
 371         GIT_TRACE_PACKET="$(pwd)/trace" git -c protocol.version=2 \
 372                 ls-remote "$SERVER" &&
 373         grep "fetch=.*filter" trace &&
 374
 375         rm "$(pwd)/trace" &&
 376         git -C server config uploadpack.allowfilter 0 &&
 377         GIT_TRACE_PACKET="$(pwd)/trace" git -c protocol.version=2 \
 378                 ls-remote "$SERVER" &&
 379         grep "fetch=" trace >fetch_capabilities &&
 380         ! grep filter fetch_capabilities
 381 '
 382
 383 test_expect_success 'partial clone warns if filter is not advertised' '
 384         rm -rf client &&
 385         git -C server config uploadpack.allowfilter 0 &&
 386         git -c protocol.version=2 \
 387                 clone --filter=blob:none "file://$(pwd)/server" client 2>err &&
 388         test_i18ngrep "filtering not recognized by server, ignoring" err
 389 '
 390
 391 test_expect_success 'even with handcrafted request, filter does not work if not advertised' '
 392         git -C server config uploadpack.allowfilter 0 &&
 393
 394         # Custom request that tries to filter even though it is not advertised.
 395         test-tool pkt-line pack >in <<-EOF &&
 396         command=fetch
 397         0001
 398         want $(git -C server rev-parse master)
 399         filter blob:none
 400         0000
 401         EOF
 402
 403         test_must_fail test-tool -C server serve-v2 --stateless-rpc \
 404                 <in >/dev/null 2>err &&
 405         grep "unexpected line: .filter blob:none." err &&
 406
 407         # Exercise to ensure that if advertised, filter works
 408         git -C server config uploadpack.allowfilter 1 &&
 409         test-tool -C server serve-v2 --stateless-rpc <in >/dev/null
 410 '
 411
 412 test_expect_success 'default refspec is used to filter ref when fetchcing' '
 413         test_when_finished "rm -f log" &&
 414
 415         GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \
 416                 fetch origin &&
 417
 418         git -C file_child log -1 --format=%s three >actual &&
 419         git -C file_parent log -1 --format=%s three >expect &&
 420         test_cmp expect actual &&
 421
 422         grep "ref-prefix refs/heads/" log &&
 423         grep "ref-prefix refs/tags/" log
 424 '
 425
 426 test_expect_success 'fetch supports various ways of have lines' '
 427         rm -rf server client trace &&
 428         git init server &&
 429         test_commit -C server dwim &&
 430         TREE=$(git -C server rev-parse HEAD^{tree}) &&
 431         git -C server tag exact \
 432                 $(git -C server commit-tree -m a "$TREE") &&
 433         git -C server tag dwim-unwanted \
 434                 $(git -C server commit-tree -m b "$TREE") &&
 435         git -C server tag exact-unwanted \
 436                 $(git -C server commit-tree -m c "$TREE") &&
 437         git -C server tag prefix1 \
 438                 $(git -C server commit-tree -m d "$TREE") &&
 439         git -C server tag prefix2 \
 440                 $(git -C server commit-tree -m e "$TREE") &&
 441         git -C server tag fetch-by-sha1 \
 442                 $(git -C server commit-tree -m f "$TREE") &&
 443         git -C server tag completely-unrelated \
 444                 $(git -C server commit-tree -m g "$TREE") &&
 445
 446         git init client &&
 447         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 448                 fetch "file://$(pwd)/server" \
 449                 dwim \
 450                 refs/tags/exact \
 451                 refs/tags/prefix*:refs/tags/prefix* \
 452                 "$(git -C server rev-parse fetch-by-sha1)" &&
 453
 454         # Ensure that the appropriate prefixes are sent (using a sample)
 455         grep "fetch> ref-prefix dwim" trace &&
 456         grep "fetch> ref-prefix refs/heads/dwim" trace &&
 457         grep "fetch> ref-prefix refs/tags/prefix" trace &&
 458
 459         # Ensure that the correct objects are returned
 460         git -C client cat-file -e $(git -C server rev-parse dwim) &&
 461         git -C client cat-file -e $(git -C server rev-parse exact) &&
 462         git -C client cat-file -e $(git -C server rev-parse prefix1) &&
 463         git -C client cat-file -e $(git -C server rev-parse prefix2) &&
 464         git -C client cat-file -e $(git -C server rev-parse fetch-by-sha1) &&
 465         test_must_fail git -C client cat-file -e \
 466                 $(git -C server rev-parse dwim-unwanted) &&
 467         test_must_fail git -C client cat-file -e \
 468                 $(git -C server rev-parse exact-unwanted) &&
 469         test_must_fail git -C client cat-file -e \
 470                 $(git -C server rev-parse completely-unrelated)
 471 '
 472
 473 test_expect_success 'fetch supports include-tag and tag following' '
 474         rm -rf server client trace &&
 475         git init server &&
 476
 477         test_commit -C server to_fetch &&
 478         git -C server tag -a annotated_tag -m message &&
 479
 480         git init client &&
 481         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 482                 fetch "$(pwd)/server" to_fetch:to_fetch &&
 483
 484         grep "fetch> ref-prefix to_fetch" trace &&
 485         grep "fetch> ref-prefix refs/tags/" trace &&
 486         grep "fetch> include-tag" trace &&
 487
 488         git -C client cat-file -e $(git -C client rev-parse annotated_tag)
 489 '
 490
 491 test_expect_success 'upload-pack respects client shallows' '
 492         rm -rf server client trace &&
 493
 494         git init server &&
 495         test_commit -C server base &&
 496         test_commit -C server client_has &&
 497
 498         git clone --depth=1 "file://$(pwd)/server" client &&
 499
 500         # Add extra commits to the client so that the whole fetch takes more
 501         # than 1 request (due to negotiation)
 502         test_commit_bulk -C client --id=c 32 &&
 503
 504         git -C server checkout -b newbranch base &&
 505         test_commit -C server client_wants &&
 506
 507         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 508                 fetch origin newbranch &&
 509         # Ensure that protocol v2 is used
 510         grep "fetch< version 2" trace
 511 '
 512
 513 test_expect_success 'ensure that multiple fetches in same process from a shallow repo works' '
 514         rm -rf server client trace &&
 515
 516         test_create_repo server &&
 517         test_commit -C server one &&
 518         test_commit -C server two &&
 519         test_commit -C server three &&
 520         git clone --shallow-exclude two "file://$(pwd)/server" client &&
 521
 522         git -C server tag -a -m "an annotated tag" twotag two &&
 523
 524         # Triggers tag following (thus, 2 fetches in one process)
 525         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 526                 fetch --shallow-exclude one origin &&
 527         # Ensure that protocol v2 is used
 528         grep "fetch< version 2" trace
 529 '
 530
 531 test_expect_success 'deepen-relative' '
 532         rm -rf server client trace &&
 533
 534         test_create_repo server &&
 535         test_commit -C server one &&
 536         test_commit -C server two &&
 537         test_commit -C server three &&
 538         git clone --depth 1 "file://$(pwd)/server" client &&
 539         test_commit -C server four &&
 540
 541         # Sanity check that only "three" is downloaded
 542         git -C client log --pretty=tformat:%s master >actual &&
 543         echo three >expected &&
 544         test_cmp expected actual &&
 545
 546         GIT_TRACE_PACKET="$(pwd)/trace" git -C client -c protocol.version=2 \
 547                 fetch --deepen=1 origin &&
 548         # Ensure that protocol v2 is used
 549         grep "fetch< version 2" trace &&
 550
 551         git -C client log --pretty=tformat:%s origin/master >actual &&
 552         cat >expected <<-\EOF &&
 553         four
 554         three
 555         two
 556         EOF
 557         test_cmp expected actual
 558 '
 559
 560 # Test protocol v2 with 'http://' transport
 561 #
 562 . "$TEST_DIRECTORY"/lib-httpd.sh
 563 start_httpd
 564
 565 test_expect_success 'create repo to be served by http:// transport' '
 566         git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
 567         git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" config http.receivepack true &&
 568         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one
 569 '
 570
 571 test_expect_success 'clone with http:// using protocol v2' '
 572         test_when_finished "rm -f log" &&
 573
 574         GIT_TRACE_PACKET="$(pwd)/log" GIT_TRACE_CURL="$(pwd)/log" git -c protocol.version=2 \
 575                 clone "$HTTPD_URL/smart/http_parent" http_child &&
 576
 577         git -C http_child log -1 --format=%s >actual &&
 578         git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
 579         test_cmp expect actual &&
 580
 581         # Client requested to use protocol v2
 582         grep "Git-Protocol: version=2" log &&
 583         # Server responded using protocol v2
 584         grep "git< version 2" log &&
 585         # Verify that the chunked encoding sending codepath is NOT exercised
 586         ! grep "Send header: Transfer-Encoding: chunked" log
 587 '
 588
 589 test_expect_success 'clone big repository with http:// using protocol v2' '
 590         test_when_finished "rm -f log" &&
 591
 592         git init "$HTTPD_DOCUMENT_ROOT_PATH/big" &&
 593         # Ensure that the list of wants is greater than http.postbuffer below
 594         for i in $(test_seq 1 1500)
 595         do
 596                 # do not use here-doc, because it requires a process
 597                 # per loop iteration
 598                 echo "commit refs/heads/too-many-refs-$i" &&
 599                 echo "committer git <git@example.com> $i +0000" &&
 600                 echo "data 0" &&
 601                 echo "M 644 inline bla.txt" &&
 602                 echo "data 4" &&
 603                 echo "bla"
 604         done | git -C "$HTTPD_DOCUMENT_ROOT_PATH/big" fast-import &&
 605
 606         GIT_TRACE_PACKET="$(pwd)/log" GIT_TRACE_CURL="$(pwd)/log" git \
 607                 -c protocol.version=2 -c http.postbuffer=65536 \
 608                 clone "$HTTPD_URL/smart/big" big_child &&
 609
 610         # Client requested to use protocol v2
 611         grep "Git-Protocol: version=2" log &&
 612         # Server responded using protocol v2
 613         grep "git< version 2" log &&
 614         # Verify that the chunked encoding sending codepath is exercised
 615         grep "Send header: Transfer-Encoding: chunked" log
 616 '
 617
 618 test_expect_success 'fetch with http:// using protocol v2' '
 619         test_when_finished "rm -f log" &&
 620
 621         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two &&
 622
 623         GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \
 624                 fetch &&
 625
 626         git -C http_child log -1 --format=%s origin/master >actual &&
 627         git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
 628         test_cmp expect actual &&
 629
 630         # Server responded using protocol v2
 631         grep "git< version 2" log
 632 '
 633
 634 test_expect_success 'fetch with http:// by hash without tag following with protocol v2 does not list refs' '
 635         test_when_finished "rm -f log" &&
 636
 637         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two_a &&
 638         git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" rev-parse two_a >two_a_hash &&
 639
 640         GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \
 641                 fetch --no-tags origin $(cat two_a_hash) &&
 642
 643         grep "fetch< version 2" log &&
 644         ! grep "fetch> command=ls-refs" log
 645 '
 646
 647 test_expect_success 'fetch from namespaced repo respects namespaces' '
 648         test_when_finished "rm -f log" &&
 649
 650         git init "$HTTPD_DOCUMENT_ROOT_PATH/nsrepo" &&
 651         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/nsrepo" one &&
 652         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/nsrepo" two &&
 653         git -C "$HTTPD_DOCUMENT_ROOT_PATH/nsrepo" \
 654                 update-ref refs/namespaces/ns/refs/heads/master one &&
 655
 656         GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \
 657                 fetch "$HTTPD_URL/smart_namespace/nsrepo" \
 658                 refs/heads/master:refs/heads/theirs &&
 659
 660         # Server responded using protocol v2
 661         grep "fetch< version 2" log &&
 662
 663         git -C "$HTTPD_DOCUMENT_ROOT_PATH/nsrepo" rev-parse one >expect &&
 664         git -C http_child rev-parse theirs >actual &&
 665         test_cmp expect actual
 666 '
 667
 668 test_expect_success 'ls-remote with v2 http sends only one POST' '
 669         test_when_finished "rm -f log" &&
 670
 671         git ls-remote "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" >expect &&
 672         GIT_TRACE_CURL="$(pwd)/log" git -c protocol.version=2 \
 673                 ls-remote "$HTTPD_URL/smart/http_parent" >actual &&
 674         test_cmp expect actual &&
 675
 676         grep "Send header: POST" log >posts &&
 677         test_line_count = 1 posts
 678 '
 679
 680 test_expect_success 'push with http:// and a config of v2 does not request v2' '
 681         test_when_finished "rm -f log" &&
 682         # Till v2 for push is designed, make sure that if a client has
 683         # protocol.version configured to use v2, that the client instead falls
 684         # back and uses v0.
 685
 686         test_commit -C http_child three &&
 687
 688         # Push to another branch, as the target repository has the
 689         # master branch checked out and we cannot push into it.
 690         GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \
 691                 push origin HEAD:client_branch &&
 692
 693         git -C http_child log -1 --format=%s >actual &&
 694         git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s client_branch >expect &&
 695         test_cmp expect actual &&
 696
 697         # Client did not request to use protocol v2
 698         ! grep "Git-Protocol: version=2" log &&
 699         # Server did not respond using protocol v2
 700         ! grep "git< version 2" log
 701 '
 702
 703 test_expect_success 'when server sends "ready", expect DELIM' '
 704         rm -rf "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" http_child &&
 705
 706         git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
 707         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one &&
 708
 709         git clone "$HTTPD_URL/smart/http_parent" http_child &&
 710
 711         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two &&
 712
 713         # After "ready" in the acknowledgments section, pretend that a FLUSH
 714         # (0000) was sent instead of a DELIM (0001).
 715         printf "\$ready = 1 if /ready/; \$ready && s/0001/0000/" \
 716                 >"$HTTPD_ROOT_PATH/one-time-perl" &&
 717
 718         test_must_fail git -C http_child -c protocol.version=2 \
 719                 fetch "$HTTPD_URL/one_time_perl/http_parent" 2> err &&
 720         test_i18ngrep "expected packfile to be sent after .ready." err
 721 '
 722
 723 test_expect_success 'when server does not send "ready", expect FLUSH' '
 724         rm -rf "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" http_child log &&
 725
 726         git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
 727         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one &&
 728
 729         git clone "$HTTPD_URL/smart/http_parent" http_child &&
 730
 731         test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two &&
 732
 733         # Create many commits to extend the negotiation phase across multiple
 734         # requests, so that the server does not send "ready" in the first
 735         # request.
 736         test_commit_bulk -C http_child --id=c 32 &&
 737
 738         # After the acknowledgments section, pretend that a DELIM
 739         # (0001) was sent instead of a FLUSH (0000).
 740         printf "\$ack = 1 if /acknowledgments/; \$ack && s/0000/0001/" \
 741                 >"$HTTPD_ROOT_PATH/one-time-perl" &&
 742
 743         test_must_fail env GIT_TRACE_PACKET="$(pwd)/log" git -C http_child \
 744                 -c protocol.version=2 \
 745                 fetch "$HTTPD_URL/one_time_perl/http_parent" 2> err &&
 746         grep "fetch< .*acknowledgments" log &&
 747         ! grep "fetch< .*ready" log &&
 748         test_i18ngrep "expected no other sections to be sent after no .ready." err
 749 '
 750
 751 # DO NOT add non-httpd-specific tests here, because the last part of this
 752 # test script is only executed when httpd is available and enabled.
 753
 754 test_done