On Thu, Mar 14, 2013 at 02:28:31PM -0700, Junio C Hamano wrote:
> John Keeping <j...@keeping.me.uk> writes:
>
> > diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
> > index 3aab6e1..70e09b6 100755
> > --- a/t/t7800-difftool.sh
> > +++ b/t/t7800-difftool.sh
> > @@ -340,6 +340,28 @@ test_expect_success PERL 'difftool --dir-diff' '
> > stdin_contains file <output
> > '
> >
> > +write_script .git/CHECK_SYMLINKS <<\EOF
> > +for f in file file2 sub/sub
> > +do
> > + echo "$f"
> > + readlink "$2/$f"
> > +done >actual
> > +EOF
>
> When you later want to enhance the test to check a combination of
> difftool arguments where some paths are expected to become links and
> others are expected to become real files, wouldn't this helper
> become a bit awkward to use? The element that expects a real file
> could be an empty line to what corresponds to the output from
> readlink, but still...
>
> If t/ directory (or when the test is run with --root=<there>) is
> aliased with symlinks in such a way that "cd <there> && $(pwd)" does
> not match <there>, would this check with $(pwd) still work, I have
> to wonder?
It looks like t3903 uses "ls -l" for this sort of test, perhaps
something like this covers these cases better:
write_script .git/CHECK_SYMLINKS <<\EOF
for f in file file2 sub/sub
do
ls -l "$2/$f" >"$f".actual
done
EOF
...
workdir=$(git rev-parse --show-toplevel)
grep "-> $workdir/file" file.actual
grep "-> $workdir/file2" file2.actual
grep "-> $workdir/sub/sub" sub/sub.actual
It looks like we already rely on that output format in t3903 so I think
that is safe, but it would be nice to have a better way to say "does
this link point to that file?". I can't think of a way to do that that
doesn't seem far too complicated for what's required here.
> > +test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without
> > unstaged changes' '
> > + cat <<EOF >expect &&
> > +file
> > +$(pwd)/file
> > +file2
> > +$(pwd)/file2
> > +sub/sub
> > +$(pwd)/sub/sub
> > +EOF
>
> You can do this to align them nicer (note the "-" before EOF):
>
> cat >expect <<-EOF &&
> file
> $(pwd)/file
> ...
> EOF
>
> > + git difftool --dir-diff --symlink \
> > + --extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
> > + test_cmp actual expect
> > +'
> > +
>
> Thanks.
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