t/t5543-atomic-push.sh

   1 #!/bin/sh
   2
   3 test_description='pushing to a repository using the atomic push option'
   4
   5 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   6 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   7
   8 TEST_PASSES_SANITIZE_LEAK=true
   9 . ./test-lib.sh
  10
  11 mk_repo_pair () {
  12         rm -rf workbench upstream &&
  13         test_create_repo upstream &&
  14         test_create_repo workbench &&
  15         (
  16                 cd upstream &&
  17                 git config receive.denyCurrentBranch warn
  18         ) &&
  19         (
  20                 cd workbench &&
  21                 git remote add up ../upstream
  22         )
  23 }
  24
  25 # Compare the ref ($1) in upstream with a ref value from workbench ($2)
  26 # i.e. test_refs second HEAD@{2}
  27 test_refs () {
  28         test $# = 2 &&
  29         git -C upstream rev-parse --verify "$1" >expect &&
  30         git -C workbench rev-parse --verify "$2" >actual &&
  31         test_cmp expect actual
  32 }
  33
  34 fmt_status_report () {
  35         sed -n \
  36                 -e "/^To / { s/   */ /g; p; }" \
  37                 -e "/^ ! / { s/   */ /g; p; }"
  38 }
  39
  40 test_expect_success 'atomic push works for a single branch' '
  41         mk_repo_pair &&
  42         (
  43                 cd workbench &&
  44                 test_commit one &&
  45                 git push --mirror up &&
  46                 test_commit two &&
  47                 git push --atomic up main
  48         ) &&
  49         test_refs main main
  50 '
  51
  52 test_expect_success 'atomic push works for two branches' '
  53         mk_repo_pair &&
  54         (
  55                 cd workbench &&
  56                 test_commit one &&
  57                 git branch second &&
  58                 git push --mirror up &&
  59                 test_commit two &&
  60                 git checkout second &&
  61                 test_commit three &&
  62                 git push --atomic up main second
  63         ) &&
  64         test_refs main main &&
  65         test_refs second second
  66 '
  67
  68 test_expect_success 'atomic push works in combination with --mirror' '
  69         mk_repo_pair &&
  70         (
  71                 cd workbench &&
  72                 test_commit one &&
  73                 git checkout -b second &&
  74                 test_commit two &&
  75                 git push --atomic --mirror up
  76         ) &&
  77         test_refs main main &&
  78         test_refs second second
  79 '
  80
  81 test_expect_success 'atomic push works in combination with --force' '
  82         mk_repo_pair &&
  83         (
  84                 cd workbench &&
  85                 test_commit one &&
  86                 git branch second main &&
  87                 test_commit two_a &&
  88                 git checkout second &&
  89                 test_commit two_b &&
  90                 test_commit three_b &&
  91                 test_commit four &&
  92                 git push --mirror up &&
  93                 # The actual test is below
  94                 git checkout main &&
  95                 test_commit three_a &&
  96                 git checkout second &&
  97                 git reset --hard HEAD^ &&
  98                 git push --force --atomic up main second
  99         ) &&
 100         test_refs main main &&
 101         test_refs second second
 102 '
 103
 104 # set up two branches where main can be pushed but second can not
 105 # (non-fast-forward). Since second can not be pushed the whole operation
 106 # will fail and leave main untouched.
 107 test_expect_success 'atomic push fails if one branch fails' '
 108         mk_repo_pair &&
 109         (
 110                 cd workbench &&
 111                 test_commit one &&
 112                 git checkout -b second main &&
 113                 test_commit two &&
 114                 test_commit three &&
 115                 test_commit four &&
 116                 git push --mirror up &&
 117                 git reset --hard HEAD~2 &&
 118                 test_commit five &&
 119                 git checkout main &&
 120                 test_commit six &&
 121                 test_must_fail git push --atomic --all up >output-all 2>&1 &&
 122                 # --all and --branches have the same behavior when be combined with --atomic
 123                 test_must_fail git push --atomic --branches up >output-branches 2>&1 &&
 124                 test_cmp output-all output-branches
 125         ) &&
 126         test_refs main HEAD@{7} &&
 127         test_refs second HEAD@{4}
 128 '
 129
 130 test_expect_success 'atomic push fails if one tag fails remotely' '
 131         # prepare the repo
 132         mk_repo_pair &&
 133         (
 134                 cd workbench &&
 135                 test_commit one &&
 136                 git checkout -b second main &&
 137                 test_commit two &&
 138                 git push --mirror up
 139         ) &&
 140         # a third party modifies the server side:
 141         (
 142                 cd upstream &&
 143                 git checkout second &&
 144                 git tag test_tag second
 145         ) &&
 146         # see if we can now push both branches.
 147         (
 148                 cd workbench &&
 149                 git checkout main &&
 150                 test_commit three &&
 151                 git checkout second &&
 152                 test_commit four &&
 153                 git tag test_tag &&
 154                 test_must_fail git push --tags --atomic up main second
 155         ) &&
 156         test_refs main HEAD@{3} &&
 157         test_refs second HEAD@{1}
 158 '
 159
 160 test_expect_success 'atomic push obeys update hook preventing a branch to be pushed' '
 161         mk_repo_pair &&
 162         (
 163                 cd workbench &&
 164                 test_commit one &&
 165                 git checkout -b second main &&
 166                 test_commit two &&
 167                 git push --mirror up
 168         ) &&
 169         test_hook -C upstream update <<-\EOF &&
 170         # only allow update to main from now on
 171         test "$1" = "refs/heads/main"
 172         EOF
 173         (
 174                 cd workbench &&
 175                 git checkout main &&
 176                 test_commit three &&
 177                 git checkout second &&
 178                 test_commit four &&
 179                 test_must_fail git push --atomic up main second
 180         ) &&
 181         test_refs main HEAD@{3} &&
 182         test_refs second HEAD@{1}
 183 '
 184
 185 test_expect_success 'atomic push is not advertised if configured' '
 186         mk_repo_pair &&
 187         (
 188                 cd upstream &&
 189                 git config receive.advertiseatomic 0
 190         ) &&
 191         (
 192                 cd workbench &&
 193                 test_commit one &&
 194                 git push --mirror up &&
 195                 test_commit two &&
 196                 test_must_fail git push --atomic up main
 197         ) &&
 198         test_refs main HEAD@{1}
 199 '
 200
 201 # References in upstream : main(1) one(1) foo(1)
 202 # References in workbench: main(2)        foo(1) two(2) bar(2)
 203 # Atomic push            : main(2)               two(2) bar(2)
 204 test_expect_success 'atomic push reports (reject by update hook)' '
 205         mk_repo_pair &&
 206         (
 207                 cd workbench &&
 208                 test_commit one &&
 209                 git branch foo &&
 210                 git push up main one foo &&
 211                 git tag -d one
 212         ) &&
 213         (
 214                 mkdir -p upstream/.git/hooks &&
 215                 cat >upstream/.git/hooks/update <<-EOF &&
 216                 #!/bin/sh
 217
 218                 if test "\$1" = "refs/heads/bar"
 219                 then
 220                         echo >&2 "Pusing to branch bar is prohibited"
 221                         exit 1
 222                 fi
 223                 EOF
 224                 chmod a+x upstream/.git/hooks/update
 225         ) &&
 226         (
 227                 cd workbench &&
 228                 test_commit two &&
 229                 git branch bar
 230         ) &&
 231         test_must_fail git -C workbench \
 232                 push --atomic up main two bar >out 2>&1 &&
 233         fmt_status_report <out >actual &&
 234         cat >expect <<-EOF &&
 235         To ../upstream
 236          ! [remote rejected] main -> main (atomic push failure)
 237          ! [remote rejected] two -> two (atomic push failure)
 238          ! [remote rejected] bar -> bar (hook declined)
 239         EOF
 240         test_cmp expect actual
 241 '
 242
 243 # References in upstream : main(1) one(1) foo(1)
 244 # References in workbench: main(2)        foo(1) two(2) bar(2)
 245 test_expect_success 'atomic push reports (mirror, but reject by update hook)' '
 246         (
 247                 cd workbench &&
 248                 git remote remove up &&
 249                 git remote add up ../upstream
 250         ) &&
 251         test_must_fail git -C workbench \
 252                 push --atomic --mirror up >out 2>&1 &&
 253         fmt_status_report <out >actual &&
 254         cat >expect <<-EOF &&
 255         To ../upstream
 256          ! [remote rejected] main -> main (atomic push failure)
 257          ! [remote rejected] one (atomic push failure)
 258          ! [remote rejected] bar -> bar (hook declined)
 259          ! [remote rejected] two -> two (atomic push failure)
 260         EOF
 261         test_cmp expect actual
 262 '
 263
 264 # References in upstream : main(2) one(1) foo(1)
 265 # References in workbench: main(1)        foo(1) two(2) bar(2)
 266 test_expect_success 'atomic push reports (reject by non-ff)' '
 267         rm upstream/.git/hooks/update &&
 268         (
 269                 cd workbench &&
 270                 git push up main &&
 271                 git reset --hard HEAD^
 272         ) &&
 273         test_must_fail git -C workbench \
 274                 push --atomic up main foo bar >out 2>&1 &&
 275         fmt_status_report <out >actual &&
 276         cat >expect <<-EOF &&
 277         To ../upstream
 278          ! [rejected] main -> main (non-fast-forward)
 279          ! [rejected] bar -> bar (atomic push failed)
 280         EOF
 281         test_cmp expect actual
 282 '
 283
 284 test_done