t / t5522-pull-symlink.shon commit Merge branch 'maint' (a5ee8fa)
   1#!/bin/sh
   2
   3test_description='pulling from symlinked subdir'
   4
   5. ./test-lib.sh
   6
   7if ! test_have_prereq SYMLINKS
   8then
   9        say 'Symbolic links not supported, skipping tests.'
  10        test_done
  11fi
  12
  13# The scenario we are building:
  14#
  15#   trash\ directory/
  16#     clone-repo/
  17#       subdir/
  18#         bar
  19#     subdir-link -> clone-repo/subdir/
  20#
  21# The working directory is subdir-link.
  22
  23test_expect_success setup '
  24        mkdir subdir &&
  25        echo file >subdir/file &&
  26        git add subdir/file &&
  27        git commit -q -m file &&
  28        git clone -q . clone-repo &&
  29        ln -s clone-repo/subdir/ subdir-link &&
  30        (
  31                cd clone-repo &&
  32                git config receive.denyCurrentBranch warn
  33        ) &&
  34        git config receive.denyCurrentBranch warn
  35'
  36
  37# Demonstrate that things work if we just avoid the symlink
  38#
  39test_expect_success 'pulling from real subdir' '
  40        (
  41                echo real >subdir/file &&
  42                git commit -m real subdir/file &&
  43                cd clone-repo/subdir/ &&
  44                git pull &&
  45                test real = $(cat file)
  46        )
  47'
  48
  49# From subdir-link, pulling should work as it does from
  50# clone-repo/subdir/.
  51#
  52# Instead, the error pull gave was:
  53#
  54#   fatal: 'origin': unable to chdir or not a git archive
  55#   fatal: The remote end hung up unexpectedly
  56#
  57# because git would find the .git/config for the "trash directory"
  58# repo, not for the clone-repo repo.  The "trash directory" repo
  59# had no entry for origin.  Git found the wrong .git because
  60# git rev-parse --show-cdup printed a path relative to
  61# clone-repo/subdir/, not subdir-link/.  Git rev-parse --show-cdup
  62# used the correct .git, but when the git pull shell script did
  63# "cd `git rev-parse --show-cdup`", it ended up in the wrong
  64# directory.  A POSIX shell's "cd" works a little differently
  65# than chdir() in C; "cd -P" is much closer to chdir().
  66#
  67test_expect_success 'pulling from symlinked subdir' '
  68        (
  69                echo link >subdir/file &&
  70                git commit -m link subdir/file &&
  71                cd subdir-link/ &&
  72                git pull &&
  73                test link = $(cat file)
  74        )
  75'
  76
  77# Prove that the remote end really is a repo, and other commands
  78# work fine in this context.  It's just that "git pull" breaks.
  79#
  80test_expect_success 'pushing from symlinked subdir' '
  81        (
  82                cd subdir-link/ &&
  83                echo push >file &&
  84                git commit -m push ./file &&
  85                git push
  86        ) &&
  87        test push = $(git show HEAD:subdir/file)
  88'
  89
  90test_done