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mingw: restrict file handle inheritance only on Windows 7 and later

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Turns out that it don't work so well on Vista, see
https://github.com/git-for-windows/git/issues/1742 for details.

According to https://devblogs.microsoft.com/oldnewthing/?p=8873, it
*should* work on Windows Vista and later.

But apparently there are issues on Windows Vista when pipes are
involved. Given that Windows Vista is past its end of life (official
support ended on April 11th, 2017), let's not spend *too* much time on
this issue and just disable the file handle inheritance restriction on
any Windows version earlier than Windows 7.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin
2019-11-22 14:41:05 +00:00
committed by Junio C Hamano
parent 9a780a384d
commit ac33519ddf
2 changed files with 27 additions and 1 deletions
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6
Documentation/config/core.txt
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@ -559,6 +559,12 @@ core.unsetenvvars::
Defaults to `PERL5LIB` to account for the fact that Git for
Windows insists on using its own Perl interpreter.
core.restrictinheritedhandles::
Windows-only: override whether spawned processes inherit only standard
file handles (`stdin`, `stdout` and `stderr`) or all handles. Can be
`auto`, `true` or `false`. Defaults to `auto`, which means `true` on
Windows 7 and later, and `false` on older Windows versions.
core.createObject::
You can set this to 'link', in which case a hardlink followed by
a delete of the source are used to make sure that object creation