fsmonitor: read from getcwd(), not the PWD environment variable

Though the process has chdir'd to the root of the working tree, the
PWD environment variable is only guaranteed to be updated accordingly
if a shell is involved -- which is not guaranteed to be the case.
That is, if `/usr/bin/perl` is a binary, $ENV{PWD} is unchanged from
whatever spawned `git` -- if `/usr/bin/perl` is a trivial shell
wrapper to the real `perl`, `$ENV{PWD}` will have been updated to the
root of the working copy.

Update to read from the Cwd module using the `getcwd` syscall, not the
PWD environment variable.  The Cygwin case is left unchanged, as it
necessarily _does_ go through a shell.

Signed-off-by: Alex Vandiver <alexmv@dropbox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Alex Vandiver 2017-11-09 11:58:09 -08:00 committed by Junio C Hamano
parent ba1b9caca6
commit 6f1dc21d98
2 changed files with 4 additions and 2 deletions

View File

@ -41,7 +41,8 @@ if ($system =~ m/^MSYS_NT/ || $system =~ m/^MINGW/) {
$git_work_tree =~ s/[\r\n]+//g;
$git_work_tree =~ s,\\,/,g;
} else {
$git_work_tree = $ENV{'PWD'};
require Cwd;
$git_work_tree = Cwd::cwd();
}
my $retry = 1;

View File

@ -40,7 +40,8 @@ if ($system =~ m/^MSYS_NT/ || $system =~ m/^MINGW/) {
$git_work_tree =~ s/[\r\n]+//g;
$git_work_tree =~ s,\\,/,g;
} else {
$git_work_tree = $ENV{'PWD'};
require Cwd;
$git_work_tree = Cwd::cwd();
}
my $retry = 1;