From 366f9cea18fbb7ebb0a75735da8c2a9d5a916809 Mon Sep 17 00:00:00 2001 From: David Aguilar Date: Mon, 16 May 2016 11:05:37 -0700 Subject: [PATCH] difftool: handle unmerged files in dir-diff mode When files are unmerged they can show up as both unmerged and modified in the output of `git diff --raw`. This causes difftool's dir-diff to create filesystem entries for the same path twice, which fails when it encounters a duplicate path. Ensure that each worktree path is only processed once. Add a test to demonstrate the breakage. Reported-by: Jan Smets Signed-off-by: David Aguilar Signed-off-by: Junio C Hamano --- git-difftool.perl | 5 +++++ t/t7800-difftool.sh | 23 +++++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/git-difftool.perl b/git-difftool.perl index 8cf0040590..ebd13baa6e 100755 --- a/git-difftool.perl +++ b/git-difftool.perl @@ -138,6 +138,7 @@ sub setup_dir_diff my %submodule; my %symlink; my @working_tree = (); + my %working_tree_dups = (); my @rawdiff = split('\0', $diffrtn); my $i = 0; @@ -188,6 +189,10 @@ EOF } if ($rmode ne $null_mode) { + # Avoid duplicate working_tree entries + if ($working_tree_dups{$dst_path}++) { + next; + } my ($use, $wt_sha1) = use_wt_file($repo, $workdir, $dst_path, $rsha1); if ($use) { diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh index 4e713f7aa5..6a7207b950 100755 --- a/t/t7800-difftool.sh +++ b/t/t7800-difftool.sh @@ -419,6 +419,29 @@ run_dir_diff_test 'difftool --dir-diff when worktree file is missing' ' grep file2 output ' +run_dir_diff_test 'difftool --dir-diff with unmerged files' ' + test_when_finished git reset --hard && + test_config difftool.echo.cmd "echo ok" && + git checkout -B conflict-a && + git checkout -B conflict-b && + git checkout conflict-a && + echo a >>file && + git add file && + git commit -m conflict-a && + git checkout conflict-b && + echo b >>file && + git add file && + git commit -m conflict-b && + git checkout master && + git merge conflict-a && + test_must_fail git merge conflict-b && + cat >expect <<-EOF && + ok + EOF + git difftool --dir-diff $symlinks -t echo >actual && + test_cmp expect actual +' + write_script .git/CHECK_SYMLINKS <<\EOF for f in file file2 sub/sub do -- 2.11.4.GIT