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submodules: don't stumble over symbolic links when cloning recursively
Since 69c3051
(submodules: refactor computation of relative gitdir path)
cloning a submodule recursively fails for nested submodules when a
symbolic link is part of the path to the work tree of the superproject.
This happens when module_clone() tries to find the relative paths between
the work tree and the git dir. When a symbolic link in current $PWD points
to a directory that is at a different level, then determining the number
of "../" needed to traverse to the superproject's work tree leads to a
wrong result.
As there is no portable way to say "pwd -P", use cd_to_toplevel to remove
the link from $PWD, which fixes this problem.
A test for this issue has been added to t7406.
Reported-by: Bob Halley <halley@play-bow.org>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
parent
785ee4960c
commit
6eafa6d096
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@ -149,8 +149,10 @@ module_clone()
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die "$(eval_gettext "Clone of '\$url' into submodule path '\$path' failed")"
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fi
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a=$(cd "$gitdir" && pwd)/
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b=$(cd "$path" && pwd)/
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# We already are at the root of the work tree but cd_to_toplevel will
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# resolve any symlinks that might be present in $PWD
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a=$(cd_to_toplevel && cd "$gitdir" && pwd)/
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b=$(cd_to_toplevel && cd "$path" && pwd)/
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# normalize Windows-style absolute paths to POSIX-style absolute paths
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case $a in [a-zA-Z]:/*) a=/${a%%:*}${a#*:} ;; esac
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case $b in [a-zA-Z]:/*) b=/${b%%:*}${b#*:} ;; esac
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@ -636,4 +636,17 @@ test_expect_success 'submodule update properly revives a moved submodule' '
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)
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'
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test_expect_success SYMLINKS 'submodule update can handle symbolic links in pwd' '
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mkdir -p linked/dir &&
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ln -s linked/dir linkto &&
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(
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cd linkto &&
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git clone "$TRASH_DIRECTORY"/super_update_r2 super &&
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(
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cd super &&
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git submodule update --init --recursive
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)
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)
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'
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test_done
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