t/t5703-upload-pack-ref-in-want.sh

   1 #!/bin/sh
   2
   3 test_description='upload-pack ref-in-want'
   4
   5 . ./test-lib.sh
   6
   7 get_actual_refs () {
   8         sed -n -e '/wanted-refs/,/0001/{
   9                 /wanted-refs/d
  10                 /0001/d
  11                 p
  12                 }' <out | test-pkt-line unpack >actual_refs
  13 }
  14
  15 get_actual_commits () {
  16         sed -n -e '/packfile/,/0000/{
  17                 /packfile/d
  18                 p
  19                 }' <out | test-pkt-line unpack-sideband >o.pack &&
  20         git index-pack o.pack &&
  21         git verify-pack -v o.idx | grep commit | cut -c-40 | sort >actual_commits
  22 }
  23
  24 check_output () {
  25         get_actual_refs &&
  26         test_cmp expected_refs actual_refs &&
  27         get_actual_commits &&
  28         test_cmp expected_commits actual_commits
  29 }
  30
  31 # c(o/foo) d(o/bar)
  32 #        \ /
  33 #         b   e(baz)  f(master)
  34 #          \__  |  __/
  35 #             \ | /
  36 #               a
  37 test_expect_success 'setup repository' '
  38         test_commit a &&
  39         git checkout -b o/foo &&
  40         test_commit b &&
  41         test_commit c &&
  42         git checkout -b o/bar b &&
  43         test_commit d &&
  44         git checkout -b baz a &&
  45         test_commit e &&
  46         git checkout master &&
  47         test_commit f
  48 '
  49
  50 test_expect_success 'config controls ref-in-want advertisement' '
  51         git serve --advertise-capabilities >out &&
  52         ! grep -a ref-in-want out &&
  53
  54         git config uploadpack.allowRefInWant false &&
  55         git serve --advertise-capabilities >out &&
  56         ! grep -a ref-in-want out &&
  57
  58         git config uploadpack.allowRefInWant true &&
  59         git serve --advertise-capabilities >out &&
  60         grep -a ref-in-want out
  61 '
  62
  63 test_expect_success 'invalid want-ref line' '
  64         test-pkt-line pack >in <<-EOF &&
  65         command=fetch
  66         0001
  67         no-progress
  68         want-ref refs/heads/non-existent
  69         done
  70         0000
  71         EOF
  72
  73         test_must_fail git serve --stateless-rpc 2>out <in &&
  74         grep "unknown ref" out
  75 '
  76
  77 test_expect_success 'basic want-ref' '
  78         cat >expected_refs <<-EOF &&
  79         $(git rev-parse f) refs/heads/master
  80         EOF
  81         git rev-parse f | sort >expected_commits &&
  82
  83         test-pkt-line pack >in <<-EOF &&
  84         command=fetch
  85         0001
  86         no-progress
  87         want-ref refs/heads/master
  88         have $(git rev-parse a)
  89         done
  90         0000
  91         EOF
  92
  93         git serve --stateless-rpc >out <in &&
  94         check_output
  95 '
  96
  97 test_expect_success 'multiple want-ref lines' '
  98         cat >expected_refs <<-EOF &&
  99         $(git rev-parse c) refs/heads/o/foo
 100         $(git rev-parse d) refs/heads/o/bar
 101         EOF
 102         git rev-parse c d | sort >expected_commits &&
 103
 104         test-pkt-line pack >in <<-EOF &&
 105         command=fetch
 106         0001
 107         no-progress
 108         want-ref refs/heads/o/foo
 109         want-ref refs/heads/o/bar
 110         have $(git rev-parse b)
 111         done
 112         0000
 113         EOF
 114
 115         git serve --stateless-rpc >out <in &&
 116         check_output
 117 '
 118
 119 test_expect_success 'mix want and want-ref' '
 120         cat >expected_refs <<-EOF &&
 121         $(git rev-parse f) refs/heads/master
 122         EOF
 123         git rev-parse e f | sort >expected_commits &&
 124
 125         test-pkt-line pack >in <<-EOF &&
 126         command=fetch
 127         0001
 128         no-progress
 129         want-ref refs/heads/master
 130         want $(git rev-parse e)
 131         have $(git rev-parse a)
 132         done
 133         0000
 134         EOF
 135
 136         git serve --stateless-rpc >out <in &&
 137         check_output
 138 '
 139
 140 test_expect_success 'want-ref with ref we already have commit for' '
 141         cat >expected_refs <<-EOF &&
 142         $(git rev-parse c) refs/heads/o/foo
 143         EOF
 144         >expected_commits &&
 145
 146         test-pkt-line pack >in <<-EOF &&
 147         command=fetch
 148         0001
 149         no-progress
 150         want-ref refs/heads/o/foo
 151         have $(git rev-parse c)
 152         done
 153         0000
 154         EOF
 155
 156         git serve --stateless-rpc >out <in &&
 157         check_output
 158 '
 159
 160 . "$TEST_DIRECTORY"/lib-httpd.sh
 161 start_httpd
 162
 163 REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo"
 164 LOCAL_PRISTINE="$(pwd)/local_pristine"
 165
 166 test_expect_success 'setup repos for change-while-negotiating test' '
 167         (
 168                 git init "$REPO" &&
 169                 cd "$REPO" &&
 170                 >.git/git-daemon-export-ok &&
 171                 test_commit m1 &&
 172                 git tag -d m1 &&
 173
 174                 # Local repo with many commits (so that negotiation will take
 175                 # more than 1 request/response pair)
 176                 git clone "http://127.0.0.1:$LIB_HTTPD_PORT/smart/repo" "$LOCAL_PRISTINE" &&
 177                 cd "$LOCAL_PRISTINE" &&
 178                 git checkout -b side &&
 179                 for i in $(seq 1 33); do test_commit s$i; done &&
 180
 181                 # Add novel commits to upstream
 182                 git checkout master &&
 183                 cd "$REPO" &&
 184                 test_commit m2 &&
 185                 test_commit m3 &&
 186                 git tag -d m2 m3
 187         ) &&
 188         git -C "$LOCAL_PRISTINE" remote set-url origin "http://127.0.0.1:$LIB_HTTPD_PORT/one_time_sed/repo" &&
 189         git -C "$LOCAL_PRISTINE" config protocol.version 2
 190 '
 191
 192 inconsistency () {
 193         # Simulate that the server initially reports $2 as the ref
 194         # corresponding to $1, and after that, $1 as the ref corresponding to
 195         # $1. This corresponds to the real-life situation where the server's
 196         # repository appears to change during negotiation, for example, when
 197         # different servers in a load-balancing arrangement serve (stateless)
 198         # RPCs during a single negotiation.
 199         printf "s/%s/%s/" \
 200                $(git -C "$REPO" rev-parse $1 | tr -d "\n") \
 201                $(git -C "$REPO" rev-parse $2 | tr -d "\n") \
 202                >"$HTTPD_ROOT_PATH/one-time-sed"
 203 }
 204
 205 test_expect_success 'server is initially ahead - no ref in want' '
 206         git -C "$REPO" config uploadpack.allowRefInWant false &&
 207         rm -rf local &&
 208         cp -r "$LOCAL_PRISTINE" local &&
 209         inconsistency master 1234567890123456789012345678901234567890 &&
 210         test_must_fail git -C local fetch 2>err &&
 211         grep "ERR upload-pack: not our ref" err
 212 '
 213
 214 test_expect_success 'server is initially ahead - ref in want' '
 215         git -C "$REPO" config uploadpack.allowRefInWant true &&
 216         rm -rf local &&
 217         cp -r "$LOCAL_PRISTINE" local &&
 218         inconsistency master 1234567890123456789012345678901234567890 &&
 219         git -C local fetch &&
 220
 221         git -C "$REPO" rev-parse --verify master >expected &&
 222         git -C local rev-parse --verify refs/remotes/origin/master >actual &&
 223         test_cmp expected actual
 224 '
 225
 226 test_expect_success 'server is initially behind - no ref in want' '
 227         git -C "$REPO" config uploadpack.allowRefInWant false &&
 228         rm -rf local &&
 229         cp -r "$LOCAL_PRISTINE" local &&
 230         inconsistency master "master^" &&
 231         git -C local fetch &&
 232
 233         git -C "$REPO" rev-parse --verify "master^" >expected &&
 234         git -C local rev-parse --verify refs/remotes/origin/master >actual &&
 235         test_cmp expected actual
 236 '
 237
 238 test_expect_success 'server is initially behind - ref in want' '
 239         git -C "$REPO" config uploadpack.allowRefInWant true &&
 240         rm -rf local &&
 241         cp -r "$LOCAL_PRISTINE" local &&
 242         inconsistency master "master^" &&
 243         git -C local fetch &&
 244
 245         git -C "$REPO" rev-parse --verify "master" >expected &&
 246         git -C local rev-parse --verify refs/remotes/origin/master >actual &&
 247         test_cmp expected actual
 248 '
 249
 250 test_expect_success 'server loses a ref - ref in want' '
 251         git -C "$REPO" config uploadpack.allowRefInWant true &&
 252         rm -rf local &&
 253         cp -r "$LOCAL_PRISTINE" local &&
 254         echo "s/master/raster/" >"$HTTPD_ROOT_PATH/one-time-sed" &&
 255         test_must_fail git -C local fetch 2>err &&
 256
 257         grep "ERR unknown ref refs/heads/raster" err
 258 '
 259
 260 stop_httpd
 261
 262 REPO="$(pwd)/repo"
 263 LOCAL_PRISTINE="$(pwd)/local_pristine"
 264
 265 # $REPO
 266 # c(o/foo) d(o/bar)
 267 #        \ /
 268 #         b   e(baz)  f(master)
 269 #          \__  |  __/
 270 #             \ | /
 271 #               a
 272 #
 273 # $LOCAL_PRISTINE
 274 #               s32(side)
 275 #               |
 276 #               .
 277 #               .
 278 #               |
 279 #               a(master)
 280 test_expect_success 'setup repos for fetching with ref-in-want tests' '
 281         (
 282                 git init "$REPO" &&
 283                 cd "$REPO" &&
 284                 test_commit a &&
 285
 286                 # Local repo with many commits (so that negotiation will take
 287                 # more than 1 request/response pair)
 288                 rm -rf "$LOCAL_PRISTINE" &&
 289                 git clone "file://$REPO" "$LOCAL_PRISTINE" &&
 290                 cd "$LOCAL_PRISTINE" &&
 291                 git checkout -b side &&
 292                 for i in $(seq 1 33); do test_commit s$i; done &&
 293
 294                 # Add novel commits to upstream
 295                 git checkout master &&
 296                 cd "$REPO" &&
 297                 git checkout -b o/foo &&
 298                 test_commit b &&
 299                 test_commit c &&
 300                 git checkout -b o/bar b &&
 301                 test_commit d &&
 302                 git checkout -b baz a &&
 303                 test_commit e &&
 304                 git checkout master &&
 305                 test_commit f
 306         ) &&
 307         git -C "$REPO" config uploadpack.allowRefInWant true &&
 308         git -C "$LOCAL_PRISTINE" config protocol.version 2
 309 '
 310
 311 test_expect_success 'fetching with exact OID' '
 312         test_when_finished "rm -f log" &&
 313
 314         rm -rf local &&
 315         cp -r "$LOCAL_PRISTINE" local &&
 316         GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
 317                 $(git -C "$REPO" rev-parse d):refs/heads/actual &&
 318
 319         git -C "$REPO" rev-parse "d" >expected &&
 320         git -C local rev-parse refs/heads/actual >actual &&
 321         test_cmp expected actual &&
 322         grep "want $(git -C "$REPO" rev-parse d)" log
 323 '
 324
 325 test_expect_success 'fetching multiple refs' '
 326         test_when_finished "rm -f log" &&
 327
 328         rm -rf local &&
 329         cp -r "$LOCAL_PRISTINE" local &&
 330         GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin master baz &&
 331
 332         git -C "$REPO" rev-parse "master" "baz" >expected &&
 333         git -C local rev-parse refs/remotes/origin/master refs/remotes/origin/baz >actual &&
 334         test_cmp expected actual &&
 335         grep "want-ref refs/heads/master" log &&
 336         grep "want-ref refs/heads/baz" log
 337 '
 338
 339 test_expect_success 'fetching ref and exact OID' '
 340         test_when_finished "rm -f log" &&
 341
 342         rm -rf local &&
 343         cp -r "$LOCAL_PRISTINE" local &&
 344         GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
 345                 master $(git -C "$REPO" rev-parse b):refs/heads/actual &&
 346
 347         git -C "$REPO" rev-parse "master" "b" >expected &&
 348         git -C local rev-parse refs/remotes/origin/master refs/heads/actual >actual &&
 349         test_cmp expected actual &&
 350         grep "want $(git -C "$REPO" rev-parse b)" log &&
 351         grep "want-ref refs/heads/master" log
 352 '
 353
 354 test_expect_success 'fetching with wildcard that does not match any refs' '
 355         test_when_finished "rm -f log" &&
 356
 357         rm -rf local &&
 358         cp -r "$LOCAL_PRISTINE" local &&
 359         git -C local fetch origin refs/heads/none*:refs/heads/* >out &&
 360         test_must_be_empty out
 361 '
 362
 363 test_expect_success 'fetching with wildcard that matches multiple refs' '
 364         test_when_finished "rm -f log" &&
 365
 366         rm -rf local &&
 367         cp -r "$LOCAL_PRISTINE" local &&
 368         GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin refs/heads/o*:refs/heads/o* &&
 369
 370         git -C "$REPO" rev-parse "o/foo" "o/bar" >expected &&
 371         git -C local rev-parse "o/foo" "o/bar" >actual &&
 372         test_cmp expected actual &&
 373         grep "want-ref refs/heads/o/foo" log &&
 374         grep "want-ref refs/heads/o/bar" log
 375 '
 376
 377 test_done