t/t7410-submodule-long-path.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2013 Doug Kelly
   4 #
   5
   6 test_description='Test submodules with a path near PATH_MAX
   7
   8 This test verifies that "git submodule" initialization, update and clones work, including with recursive submodules and paths approaching PATH_MAX (260 characters on Windows)
   9 '
  10
  11 TEST_NO_CREATE_REPO=1
  12 . ./test-lib.sh
  13
  14 # cloning a submodule calls is_git_directory("$path/../.git/modules/$path"),
  15 # which effectively limits the maximum length to PATH_MAX / 2 minus some
  16 # overhead; start with 3 * 36 = 108 chars (test 2 fails if >= 110)
  17 longpath36=0123456789abcdefghijklmnopqrstuvwxyz
  18 longpath180=$longpath36$longpath36$longpath36$longpath36$longpath36
  19
  20 # the git database must fit within PATH_MAX, which limits the submodule name
  21 # to PATH_MAX - len(pwd) - ~90 (= len("/objects//") + 40-byte sha1 + some
  22 # overhead from the test case)
  23 pwd=$(pwd)
  24 pwdlen=$(echo "$pwd" | wc -c)
  25 longpath=$(echo $longpath180 | cut -c 1-$((170-$pwdlen)))
  26
  27 test_expect_success 'submodule with a long path' '
  28         git init --bare remote &&
  29         test_create_repo bundle1 &&
  30         (
  31                 cd bundle1 &&
  32                 test_commit "shoot" &&
  33                 git rev-parse --verify HEAD >../expect
  34         ) &&
  35         mkdir home &&
  36         (
  37                 cd home &&
  38                 git clone ../remote test &&
  39                 cd test &&
  40                 git submodule add ../bundle1 $longpath &&
  41                 test_commit "sogood" &&
  42                 (
  43                         cd $longpath &&
  44                         git rev-parse --verify HEAD >actual &&
  45                         test_cmp ../../../expect actual
  46                 ) &&
  47                 git push origin master
  48         ) &&
  49         mkdir home2 &&
  50         (
  51                 cd home2 &&
  52                 git clone ../remote test &&
  53                 cd test &&
  54                 git checkout master &&
  55                 git submodule update --init &&
  56                 (
  57                         cd $longpath &&
  58                         git rev-parse --verify HEAD >actual &&
  59                         test_cmp ../../../expect actual
  60                 )
  61         )
  62 '
  63
  64 test_expect_success 'recursive submodule with a long path' '
  65         git init --bare super &&
  66         test_create_repo child &&
  67         (
  68                 cd child &&
  69                 test_commit "shoot" &&
  70                 git rev-parse --verify HEAD >../expect
  71         ) &&
  72         test_create_repo parent &&
  73         (
  74                 cd parent &&
  75                 git submodule add ../child $longpath &&
  76                 test_commit "aim"
  77         ) &&
  78         mkdir home3 &&
  79         (
  80                 cd home3 &&
  81                 git clone ../super test &&
  82                 cd test &&
  83                 git submodule add ../parent foo &&
  84                 git submodule update --init --recursive
  85                 test_commit "sogood" &&
  86                 (
  87                         cd foo/$longpath &&
  88                         git rev-parse --verify HEAD >actual &&
  89                         test_cmp ../../../../expect actual
  90                 ) &&
  91                 git push origin master
  92         ) &&
  93         mkdir home4 &&
  94         (
  95                 cd home4 &&
  96                 git clone ../super test --recursive &&
  97                 (
  98                         cd test/foo/$longpath &&
  99                         git rev-parse --verify HEAD >actual &&
 100                         test_cmp ../../../../expect actual
 101                 )
 102         )
 103 '
 104
 105 test_done