Brandon Williams <bmwill@xxxxxxxxxx> writes: > A regression was introduced in 557a5998d (submodule: remove > gitmodules_config, 2017-08-03) to how attribute processing was handled > in bare repositories when running the diff-tree command. > > By default the attribute system will first try to read ".gitattribute" > files from the working tree and then falls back to reading them from the > index if there isn't a copy checked out in the worktree. Prior to > 557a5998d the index was read as a side effect of the call to > 'gitmodules_config()' which ensured that the index was already populated > before entering the attribute subsystem. > > Since the call to 'gitmodules_config()' was removed the index is no > longer being read so when the attribute system tries to read from the > in-memory index it doesn't find any ".gitattribute" entries effectively > ignoring any configured attributes. > > Fix this by explicitly reading the index during the setup of diff-tree. Thanks, both. Will queue. > Reported-by: Ben Boeckel <ben.boeckel@xxxxxxxxxxx> > Signed-off-by: Brandon Williams <bmwill@xxxxxxxxxx> > --- > > This patch should fix the regression. Let me know if it doesn't solve the > issue and I'll investigate some more. > > builtin/diff-tree.c | 1 + > t/t4015-diff-whitespace.sh | 17 +++++++++++++++++ > 2 files changed, 18 insertions(+) > > diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c > index d66499909..cfe7d0281 100644 > --- a/builtin/diff-tree.c > +++ b/builtin/diff-tree.c > @@ -110,6 +110,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) > > git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ > init_revisions(opt, prefix); > + read_cache(); > opt->abbrev = 0; > opt->diff = 1; > opt->disable_stdin = 1; > diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh > index 559a7541a..6e061a002 100755 > --- a/t/t4015-diff-whitespace.sh > +++ b/t/t4015-diff-whitespace.sh > @@ -636,6 +636,23 @@ test_expect_success 'check with space before tab in indent (diff-tree)' ' > test_must_fail git diff-tree --check HEAD^ HEAD > ' > > +test_expect_success 'check with ignored trailing whitespace attr (diff-tree)' ' > + test_when_finished "git reset --hard HEAD^" && > + > + # Create a whitespace error that should be ignored. > + echo "* -whitespace" > ".gitattributes" && > + git add ".gitattributes" && > + echo "trailing space -> " > "trailing-space" && > + git add "trailing-space" && > + git commit -m "trailing space" && > + > + # With a worktree diff-tree ignores the whitespace error > + git diff-tree --root --check HEAD && > + > + # Without a worktree diff-tree still ignores the whitespace error > + git -C .git diff-tree --root --check HEAD > +' > + > test_expect_success 'check trailing whitespace (trailing-space: off)' ' > git config core.whitespace "-trailing-space" && > echo "foo (); " >x &&
