t/t1510-repo-setup.sh

   1 #!/bin/sh
   2
   3 test_description='Tests of cwd/prefix/worktree/gitdir setup in all cases'
   4
   5 . ./test-lib.sh
   6
   7 #
   8 # A few rules for repo setup:
   9 #
  10 # 1. GIT_DIR is relative to user's cwd. --git-dir is equivalent to
  11 #    GIT_DIR.
  12 #
  13 # 2. .git file is relative to parent directory. .git file is basically
  14 #    symlink in disguise. The directory where .git file points to will
  15 #    become new git_dir.
  16 #
  17 # 3. core.worktree is relative to git_dir.
  18 #
  19 # 4. GIT_WORK_TREE is relative to user's cwd. --work-tree is
  20 #    equivalent to GIT_WORK_TREE.
  21 #
  22 # 5. GIT_WORK_TREE/core.worktree is only effective if GIT_DIR is set
  23 #    Uneffective worktree settings should be warned.
  24 #
  25 # 6. Effective GIT_WORK_TREE overrides core.worktree and core.bare
  26 #
  27 # 7. Effective core.worktree conflicts with core.bare
  28 #
  29 # 8. If GIT_DIR is set but neither worktree nor bare setting is given,
  30 #    original cwd becomes worktree.
  31 #
  32 # 9. If .git discovery is done inside a repo, the repo becomes a bare
  33 #    repo. .git discovery is performed if GIT_DIR is not set.
  34 #
  35 # 10. If no worktree is available, cwd remains unchanged, prefix is
  36 #     NULL.
  37 #
  38 # 11. When user's cwd is outside worktree, cwd remains unchanged,
  39 #     prefix is NULL.
  40 #
  41
  42 test_repo() {
  43         (
  44         cd "$1" &&
  45         if test -n "$2"; then GIT_DIR="$2" && export GIT_DIR; fi &&
  46         if test -n "$3"; then GIT_WORK_TREE="$3" && export GIT_WORK_TREE; fi &&
  47         rm -f trace &&
  48         GIT_TRACE="`pwd`/trace" git symbolic-ref HEAD >/dev/null &&
  49         grep '^setup: ' trace >result &&
  50         test_cmp expected result
  51         )
  52 }
  53
  54 # Bit 0 = GIT_WORK_TREE
  55 # Bit 1 = GIT_DIR
  56 # Bit 2 = core.worktree
  57 # Bit 3 = .git is a file
  58 # Bit 4 = bare repo
  59 # Case# = encoding of the above 5 bits
  60
  61 #
  62 # Case #0
  63 #
  64 ############################################################
  65 #
  66 # Input:
  67 #
  68 #  - GIT_WORK_TREE is not set
  69 #  - GIT_DIR is not set
  70 #  - core.worktree is not set
  71 #  - .git is a directory
  72 #  - core.bare is not set, cwd is outside .git
  73 #
  74 # Output:
  75 #
  76 #  - worktree is .git's parent directory
  77 #  - cwd is at worktree root dir
  78 #  - prefix is calculated
  79 #  - git_dir is set to ".git"
  80 #  - cwd can't be outside worktree
  81
  82 test_expect_success '#0: setup' '
  83         unset GIT_DIR GIT_WORK_TREE &&
  84         mkdir 0 0/sub &&
  85         cd 0 && git init && cd ..
  86 '
  87
  88 test_expect_success '#0: at root' '
  89         cat >0/expected <<EOF &&
  90 setup: git_dir: .git
  91 setup: worktree: $TRASH_DIRECTORY/0
  92 setup: cwd: $TRASH_DIRECTORY/0
  93 setup: prefix: (null)
  94 EOF
  95         test_repo 0
  96 '
  97
  98 test_expect_success '#0: in subdir' '
  99         cat >0/sub/expected <<EOF &&
 100 setup: git_dir: .git
 101 setup: worktree: $TRASH_DIRECTORY/0
 102 setup: cwd: $TRASH_DIRECTORY/0
 103 setup: prefix: sub/
 104 EOF
 105         test_repo 0/sub
 106 '
 107
 108 #
 109 # case #1
 110 #
 111 ############################################################
 112 #
 113 # Input:
 114 #
 115 #  - GIT_WORK_TREE is set
 116 #  - GIT_DIR is not set
 117 #  - core.worktree is not set
 118 #  - .git is a directory
 119 #  - core.bare is not set, cwd is outside .git
 120 #
 121 # Output:
 122 #
 123 # GIT_WORK_TREE is ignored -> #0
 124
 125 test_expect_success '#1: setup' '
 126         unset GIT_DIR GIT_WORK_TREE &&
 127         mkdir 1 1/sub 1.wt 1.wt/sub 1/wt 1/wt/sub &&
 128         cd 1 &&
 129         git init &&
 130         GIT_WORK_TREE=non-existent &&
 131         export GIT_WORK_TREE &&
 132         cd ..
 133 '
 134
 135 test_expect_failure '#1: at root' '
 136         cat >1/expected <<EOF &&
 137 setup: git_dir: .git
 138 setup: worktree: $TRASH_DIRECTORY/1
 139 setup: cwd: $TRASH_DIRECTORY/1
 140 setup: prefix: (null)
 141 EOF
 142         test_repo 1
 143 '
 144
 145 test_expect_failure '#1: in subdir' '
 146         cat >1/sub/expected <<EOF &&
 147 setup: git_dir: .git
 148 setup: worktree: $TRASH_DIRECTORY/1
 149 setup: cwd: $TRASH_DIRECTORY/1
 150 setup: prefix: sub/
 151 EOF
 152         test_repo 1/sub
 153 '
 154
 155 test_done