Re: [RFC/PATCH] git-sh-setup.sh: Add an pwd() function for MinGW

[Johannes Sixt <j6t@kdbg.org>]

Am 17.04.2012 20:48, schrieb Ramsay Jones:
> 
> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
> ---
> 
> Hi Johannes,
> 
> While working on fixing git-submodule.sh on cygwin, I attempted
> to run tests on MinGW to ensure that my patches don't cause a
> regression. (Indeed that is the *only* reason I have MinGW
> installed!)
> 
> In order to test the modified git-submodule.sh I used the following
> tests:
> 
>     $ git grep -l -e 'git *submodule' -- t
>     t/t5526-fetch-submodules.sh
>     t/t6008-rev-list-submodule.sh
>     t/t7003-filter-branch.sh
>     t/t7400-submodule-basic.sh
>     t/t7401-submodule-summary.sh
>     t/t7403-submodule-sync.sh
>     t/t7405-submodule-merge.sh
>     t/t7406-submodule-update.sh
>     t/t7407-submodule-foreach.sh
>     t/t7408-submodule-reference.sh
>     t/t7506-status-submodule.sh
>     t/t7610-mergetool.sh
>     t/t9300-fast-import.sh
>     t/t9350-fast-export.sh
> 
> On MinGW, the following tests failed:
> 
>     t5526-fetch-submodules.sh:  1, 2, 5, 8-13, 16, 18-19, 21, 23-24
>     t7400-submodule-basic.sh:   7
>     t7401-submodule-summary.sh: 16
>     t7405-submodule-merge.sh:   7-8
>     t7406-submodule-update.sh:  3, 24-25, 30-31
>     t7407-submodule-foreach.sh: 2, 5-10, 12-13
>     t9300-fast-import.sh:       62
> 
> I noticed that 6 of those tests were failing due to CRLF line ending
> issues. For example, if you redirect the output of git-status to a
> file, then you will find that the lines output by git-submodule have
> CRLF line endings, while the remainder of the file has LF only.
> So, in order to ignore this (ie I don't have a patch to fix it!), if
> I run the tests something like this:
> 
>     $ GIT_TEST_CMP='diff -ub' ./t7400-submodule-basic.sh
> 
> then these tests pass. The tests in question being:
> 
>     t7400.7, t7401.16, t7405.{7,8}, t7406.3 and t7407.2
> 
> [Note that I wanted to use --strip-trailing-cr but the version of diff
> on MinGW was too old.]
> 
> Test #62 in t9300-fast-import.sh is fixed by a separate patch (see email
> [PATCH] compat/mingw.h: Set S_ISUID to prevent a fast-import test failure).
> 
> All of the remaining test failures are fixed by this patch!
> 
> This is an RFC because I have only run the above tests. In fact the original
> version of this patch was confined to git-submodule.sh (along with a uname
> conditional to restrict the definition to MinGW).
> 
> HTH
> 
> ATB,
> Ramsay Jones
> 
>  git-sh-setup.sh |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/git-sh-setup.sh b/git-sh-setup.sh
> index 5d8e4e6..7b3ae75 100644
> --- a/git-sh-setup.sh
> +++ b/git-sh-setup.sh
> @@ -248,6 +248,10 @@ case $(uname -s) in
>  	find () {
>  		/usr/bin/find "$@"
>  	}
> +	# git sees Windows-style pwd
> +	pwd () {
> +		builtin pwd -W
> +	}
>  	is_absolute_path () {
>  		case "$1" in
>  		[/\\]* | [A-Za-z]:*)

The test suite passes with this patch. As I already said in a similar
context on the msysgit mailing list[1], it looks like all occurrences of
'pwd' in the scripted git commands are exercised, so I trust this does
not bring any regressions.

-- Hannes

[1]
http://thread.gmane.org/gmane.comp.version-control.msysgit/14894/focus=14970