t/t5582-fetch-negative-refspec.sh

   1 #!/bin/sh
   2 # Copyright (c) 2020, Jacob Keller.
   3
   4 test_description='"git fetch" with negative refspecs.
   5
   6 '
   7
   8 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   9 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  10
  11 . ./test-lib.sh
  12
  13 test_expect_success setup '
  14         echo >file original &&
  15         git add file &&
  16         git commit -a -m original
  17 '
  18
  19 test_expect_success "clone and setup child repos" '
  20         git clone . one &&
  21         (
  22                 cd one &&
  23                 echo >file updated by one &&
  24                 git commit -a -m "updated by one" &&
  25                 git switch -c alternate &&
  26                 echo >file updated again by one &&
  27                 git commit -a -m "updated by one again" &&
  28                 git switch main
  29         ) &&
  30         git clone . two &&
  31         (
  32                 cd two &&
  33                 git config branch.main.remote one &&
  34                 git config remote.one.url ../one/.git/ &&
  35                 git config remote.one.fetch +refs/heads/*:refs/remotes/one/* &&
  36                 git config --add remote.one.fetch ^refs/heads/alternate
  37         ) &&
  38         git clone . three
  39 '
  40
  41 test_expect_success "fetch one" '
  42         echo >file updated by origin &&
  43         git commit -a -m "updated by origin" &&
  44         (
  45                 cd two &&
  46                 test_must_fail git rev-parse --verify refs/remotes/one/alternate &&
  47                 git fetch one &&
  48                 test_must_fail git rev-parse --verify refs/remotes/one/alternate &&
  49                 git rev-parse --verify refs/remotes/one/main &&
  50                 mine=$(git rev-parse refs/remotes/one/main) &&
  51                 his=$(cd ../one && git rev-parse refs/heads/main) &&
  52                 test "z$mine" = "z$his"
  53         )
  54 '
  55
  56 test_expect_success "fetch with negative refspec on commandline" '
  57         echo >file updated by origin again &&
  58         git commit -a -m "updated by origin again" &&
  59         (
  60                 cd three &&
  61                 alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
  62                 echo $alternate_in_one >expect &&
  63                 git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^refs/heads/main &&
  64                 cut -f -1 .git/FETCH_HEAD >actual &&
  65                 test_cmp expect actual
  66         )
  67 '
  68
  69 test_expect_success "fetch with negative sha1 refspec fails" '
  70         echo >file updated by origin yet again &&
  71         git commit -a -m "updated by origin yet again" &&
  72         (
  73                 cd three &&
  74                 main_in_one=$(cd ../one && git rev-parse refs/heads/main) &&
  75                 test_must_fail git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^$main_in_one
  76         )
  77 '
  78
  79 test_expect_success "fetch with negative pattern refspec" '
  80         echo >file updated by origin once more &&
  81         git commit -a -m "updated by origin once more" &&
  82         (
  83                 cd three &&
  84                 alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
  85                 echo $alternate_in_one >expect &&
  86                 git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^refs/heads/m* &&
  87                 cut -f -1 .git/FETCH_HEAD >actual &&
  88                 test_cmp expect actual
  89         )
  90 '
  91
  92 test_expect_success "fetch with negative pattern refspec does not expand prefix" '
  93         echo >file updated by origin another time &&
  94         git commit -a -m "updated by origin another time" &&
  95         (
  96                 cd three &&
  97                 alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
  98                 main_in_one=$(cd ../one && git rev-parse refs/heads/main) &&
  99                 echo $alternate_in_one >expect &&
 100                 echo $main_in_one >>expect &&
 101                 git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^main &&
 102                 cut -f -1 .git/FETCH_HEAD >actual &&
 103                 test_cmp expect actual
 104         )
 105 '
 106
 107 test_expect_success "fetch with negative refspec avoids duplicate conflict" '
 108         (
 109                 cd one &&
 110                 git branch dups/a &&
 111                 git branch dups/b &&
 112                 git branch dups/c &&
 113                 git branch other/a &&
 114                 git rev-parse --verify refs/heads/other/a >../expect &&
 115                 git rev-parse --verify refs/heads/dups/b >>../expect &&
 116                 git rev-parse --verify refs/heads/dups/c >>../expect
 117         ) &&
 118         (
 119                 cd three &&
 120                 git fetch ../one/.git ^refs/heads/dups/a refs/heads/dups/*:refs/dups/* refs/heads/other/a:refs/dups/a &&
 121                 git rev-parse --verify refs/dups/a >../actual &&
 122                 git rev-parse --verify refs/dups/b >>../actual &&
 123                 git rev-parse --verify refs/dups/c >>../actual
 124         ) &&
 125         test_cmp expect actual
 126 '
 127
 128 test_expect_success "push --prune with negative refspec" '
 129         (
 130                 cd two &&
 131                 git branch prune/a &&
 132                 git branch prune/b &&
 133                 git branch prune/c &&
 134                 git push ../three refs/heads/prune/* &&
 135                 git branch -d prune/a &&
 136                 git branch -d prune/b &&
 137                 git push --prune ../three refs/heads/prune/* ^refs/heads/prune/b
 138         ) &&
 139         (
 140                 cd three &&
 141                 test_write_lines b c >expect &&
 142                 git for-each-ref --format="%(refname:lstrip=3)" refs/heads/prune/ >actual &&
 143                 test_cmp expect actual
 144         )
 145 '
 146
 147 test_expect_success "push --prune with negative refspec apply to the destination" '
 148         (
 149                 cd two &&
 150                 git branch ours/a &&
 151                 git branch ours/b &&
 152                 git branch ours/c &&
 153                 git push ../three refs/heads/ours/*:refs/heads/theirs/* &&
 154                 git branch -d ours/a &&
 155                 git branch -d ours/b &&
 156                 git push --prune ../three refs/heads/ours/*:refs/heads/theirs/* ^refs/heads/theirs/b
 157         ) &&
 158         (
 159                 cd three &&
 160                 test_write_lines b c >expect &&
 161                 git for-each-ref --format="%(refname:lstrip=3)" refs/heads/theirs/ >actual &&
 162                 test_cmp expect actual
 163         )
 164 '
 165
 166 test_expect_success "fetch --prune with negative refspec" '
 167         (
 168                 cd two &&
 169                 git branch fetch/a &&
 170                 git branch fetch/b &&
 171                 git branch fetch/c
 172         ) &&
 173         (
 174                 cd three &&
 175                 git fetch ../two/.git refs/heads/fetch/*:refs/heads/copied/*
 176         ) &&
 177         (
 178                 cd two &&
 179                 git branch -d fetch/a &&
 180                 git branch -d fetch/b
 181         ) &&
 182         (
 183                 cd three &&
 184                 test_write_lines b c >expect &&
 185                 git fetch -v ../two/.git --prune refs/heads/fetch/*:refs/heads/copied/* ^refs/heads/fetch/b &&
 186                 git for-each-ref --format="%(refname:lstrip=3)" refs/heads/copied/ >actual &&
 187                 test_cmp expect actual
 188         )
 189 '
 190
 191 test_expect_success "push with matching : and negative refspec" '
 192         # Manually handle cleanup, since test_config is not
 193         # prepared to take arbitrary options like --add
 194         test_when_finished "test_unconfig -C two remote.one.push" &&
 195
 196         # For convenience, we use "master" to refer to the name of
 197         # the branch created by default in the following.
 198         #
 199         # Repositories two and one have branches other than "master"
 200         # but they have no overlap---"master" is the only one that
 201         # is shared between them.  And the master branch at two is
 202         # behind the master branch at one by one commit.
 203         git -C two config --add remote.one.push : &&
 204
 205         # A matching push tries to update master, fails due to non-ff
 206         test_must_fail git -C two push one &&
 207
 208         # "master" may actually not be "master"---find it out.
 209         current=$(git symbolic-ref HEAD) &&
 210
 211         # If master is in negative refspec, then the command will not attempt
 212         # to push and succeed.
 213         git -C two config --add remote.one.push "^$current" &&
 214
 215         # With "master" excluded, this push is a no-op.  Nothing gets
 216         # pushed and it succeeds.
 217         git -C two push -v one
 218 '
 219
 220 test_expect_success "push with matching +: and negative refspec" '
 221         test_when_finished "test_unconfig -C two remote.one.push" &&
 222
 223         # The same set-up as above, whose side-effect was a no-op.
 224         git -C two config --add remote.one.push +: &&
 225
 226         # The push refuses to update the "master" branch that is checked
 227         # out in the "one" repository, even when it is forced with +:
 228         test_must_fail git -C two push one &&
 229
 230         # "master" may actually not be "master"---find it out.
 231         current=$(git symbolic-ref HEAD) &&
 232
 233         # If master is in negative refspec, then the command will not attempt
 234         # to push and succeed
 235         git -C two config --add remote.one.push "^$current" &&
 236
 237         # With "master" excluded, this push is a no-op.  Nothing gets
 238         # pushed and it succeeds.
 239         git -C two push -v one
 240 '
 241
 242 test_expect_success '--prefetch correctly modifies refspecs' '
 243         git -C one config --unset-all remote.origin.fetch &&
 244         git -C one config --add remote.origin.fetch ^refs/heads/bogus/ignore &&
 245         git -C one config --add remote.origin.fetch "refs/tags/*:refs/tags/*" &&
 246         git -C one config --add remote.origin.fetch "refs/heads/bogus/*:bogus/*" &&
 247
 248         git tag -a -m never never-fetch-tag HEAD &&
 249
 250         git branch bogus/fetched HEAD~1 &&
 251         git branch bogus/ignore HEAD &&
 252
 253         git -C one fetch --prefetch --no-tags &&
 254         test_must_fail git -C one rev-parse never-fetch-tag &&
 255         git -C one rev-parse refs/prefetch/bogus/fetched &&
 256         test_must_fail git -C one rev-parse refs/prefetch/bogus/ignore &&
 257
 258         # correctly handle when refspec set becomes empty
 259         # after removing the refs/tags/* refspec.
 260         git -C one config --unset-all remote.origin.fetch &&
 261         git -C one config --add remote.origin.fetch "refs/tags/*:refs/tags/*" &&
 262
 263         git -C one fetch --prefetch --no-tags &&
 264         test_must_fail git -C one rev-parse never-fetch-tag &&
 265
 266         # The refspec for refs that are not fully qualified
 267         # are filtered multiple times.
 268         git -C one rev-parse refs/prefetch/bogus/fetched &&
 269         test_must_fail git -C one rev-parse refs/prefetch/bogus/ignore
 270 '
 271
 272 test_expect_success '--prefetch succeeds when refspec becomes empty' '
 273         git checkout bogus/fetched &&
 274         test_commit extra &&
 275
 276         git -C one config --unset-all remote.origin.fetch &&
 277         git -C one config --unset branch.main.remote &&
 278         git -C one config remote.origin.fetch "+refs/tags/extra" &&
 279         git -C one config remote.origin.skipfetchall true &&
 280         git -C one config remote.origin.tagopt "--no-tags" &&
 281
 282         git -C one fetch --prefetch
 283 '
 284
 285 test_done