t/t5519-push-alternates.sh

   1 #!/bin/sh
   2
   3 test_description='push to a repository that borrows from elsewhere'
   4
   5 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   6 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   7
   8 . ./test-lib.sh
   9
  10 test_expect_success setup '
  11         mkdir alice-pub &&
  12         (
  13                 cd alice-pub &&
  14                 GIT_DIR=. git init
  15         ) &&
  16         mkdir alice-work &&
  17         (
  18                 cd alice-work &&
  19                 git init &&
  20                 >file &&
  21                 git add . &&
  22                 git commit -m initial &&
  23                 git push ../alice-pub main
  24         ) &&
  25
  26         # Project Bob is a fork of project Alice
  27         mkdir bob-pub &&
  28         (
  29                 cd bob-pub &&
  30                 GIT_DIR=. git init &&
  31                 mkdir -p objects/info &&
  32                 echo ../../alice-pub/objects >objects/info/alternates
  33         ) &&
  34         git clone alice-pub bob-work &&
  35         (
  36                 cd bob-work &&
  37                 git push ../bob-pub main
  38         )
  39 '
  40
  41 test_expect_success 'alice works and pushes' '
  42         (
  43                 cd alice-work &&
  44                 echo more >file &&
  45                 git commit -a -m second &&
  46                 git push ../alice-pub :
  47         )
  48 '
  49
  50 test_expect_success 'bob fetches from alice, works and pushes' '
  51         (
  52                 # Bob acquires what Alice did in his work tree first.
  53                 # Even though these objects are not directly in
  54                 # the public repository of Bob, this push does not
  55                 # need to send the commit Bob received from Alice
  56                 # to his public repository, as all the object Alice
  57                 # has at her public repository are available to it
  58                 # via its alternates.
  59                 cd bob-work &&
  60                 git pull ../alice-pub main &&
  61                 echo more bob >file &&
  62                 git commit -a -m third &&
  63                 git push ../bob-pub :
  64         ) &&
  65
  66         # Check that the second commit by Alice is not sent
  67         # to ../bob-pub
  68         (
  69                 cd bob-pub &&
  70                 second=$(git rev-parse HEAD^) &&
  71                 rm -f objects/info/alternates &&
  72                 test_must_fail git cat-file -t $second &&
  73                 echo ../../alice-pub/objects >objects/info/alternates
  74         )
  75 '
  76
  77 test_expect_success 'clean-up in case the previous failed' '
  78         (
  79                 cd bob-pub &&
  80                 echo ../../alice-pub/objects >objects/info/alternates
  81         )
  82 '
  83
  84 test_expect_success 'alice works and pushes again' '
  85         (
  86                 # Alice does not care what Bob does.  She does not
  87                 # even have to be aware of his existence.  She just
  88                 # keeps working and pushing
  89                 cd alice-work &&
  90                 echo more alice >file &&
  91                 git commit -a -m fourth &&
  92                 git push ../alice-pub :
  93         )
  94 '
  95
  96 test_expect_success 'bob works and pushes' '
  97         (
  98                 # This time Bob does not pull from Alice, and
  99                 # the main branch at her public repository points
 100                 # at a commit Bob does not know about.  This should
 101                 # not prevent the push by Bob from succeeding.
 102                 cd bob-work &&
 103                 echo yet more bob >file &&
 104                 git commit -a -m fifth &&
 105                 git push ../bob-pub :
 106         )
 107 '
 108
 109 test_expect_success 'alice works and pushes yet again' '
 110         (
 111                 # Alice does not care what Bob does.  She does not
 112                 # even have to be aware of his existence.  She just
 113                 # keeps working and pushing
 114                 cd alice-work &&
 115                 echo more and more alice >file &&
 116                 git commit -a -m sixth.1 &&
 117                 echo more and more alice >>file &&
 118                 git commit -a -m sixth.2 &&
 119                 echo more and more alice >>file &&
 120                 git commit -a -m sixth.3 &&
 121                 git push ../alice-pub :
 122         )
 123 '
 124
 125 test_expect_success 'bob works and pushes again' '
 126         (
 127                 cd alice-pub &&
 128                 git cat-file commit main >../bob-work/commit
 129         ) &&
 130         (
 131                 # This time Bob does not pull from Alice, and
 132                 # the main branch at her public repository points
 133                 # at a commit Bob does not fully know about, but
 134                 # he happens to have the commit object (but not the
 135                 # necessary tree) in his repository from Alice.
 136                 # This should not prevent the push by Bob from
 137                 # succeeding.
 138                 cd bob-work &&
 139                 git hash-object -t commit -w commit &&
 140                 echo even more bob >file &&
 141                 git commit -a -m seventh &&
 142                 git push ../bob-pub :
 143         )
 144 '
 145
 146 test_done