difftool: ensure full index

Before iterating over all cache entries, ensure that a sparse index has
been expanded to a full one to avoid unexpected behavior.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2021-04-01 01:49:46 +00:00 committed by Junio C Hamano
parent cb8388df5b
commit 48b3c7da6c

View File

@ -584,6 +584,9 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
setenv("GIT_DIFFTOOL_DIRDIFF", "true", 1);
rc = run_command_v_opt(helper_argv, flags);
/* TODO: audit for interaction with sparse-index. */
ensure_full_index(&wtindex);
/*
* If the diff includes working copy files and those
* files were modified during the diff, then the changes