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authorElijah Newren <newren@gmail.com>2021-09-27 19:33:44 +0300
committerJunio C Hamano <gitster@pobox.com>2021-09-27 23:38:37 +0300
commit480d3d6bf90a6ec5b8f02d672f1d4027a4889106 (patch)
tree24b1cc646186ce99e760c4ad6992899318150326 /reset.c
parent1b5f37334a2603c7134da7accba76276d8d31cf6 (diff)
Change unpack_trees' 'reset' flag into an enum
Traditionally, unpack_trees_options->reset was used to signal that it was okay to delete any untracked files in the way. This was used by `git read-tree --reset`, but then started appearing in other places as well. However, many of the other uses should not be deleting untracked files in the way. Change this value to an enum so that a value of 1 (i.e. "true") can be split into two: UNPACK_RESET_PROTECT_UNTRACKED, UNPACK_RESET_OVERWRITE_UNTRACKED In order to catch accidental misuses (i.e. where folks call it the way they traditionally used to), define the special enum value of UNPACK_RESET_INVALID = 1 which will trigger a BUG(). Modify existing callers so that read-tree --reset reset --hard checkout --force continue using the UNPACK_RESET_OVERWRITE_UNTRACKED logic, while other callers, including am checkout without --force stash (though currently dead code; reset always had a value of 0) numerous callers from rebase/sequencer to reset_head() will use the new UNPACK_RESET_PROTECT_UNTRACKED value. Also, note that it has been reported that 'git checkout <treeish> <pathspec>' currently also allows overwriting untracked files[1]. That case should also be fixed, but it does not use unpack_trees() and thus is outside the scope of the current changes. [1] https://lore.kernel.org/git/15dad590-087e-5a48-9238-5d2826950506@gmail.com/ Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'reset.c')
-rw-r--r--reset.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/reset.c b/reset.c
index f40a8ecf66..f214df3d96 100644
--- a/reset.c
+++ b/reset.c
@@ -59,7 +59,7 @@ int reset_head(struct repository *r, struct object_id *oid, const char *action,
unpack_tree_opts.preserve_ignored = 0; /* FIXME: !overwrite_ignore */
init_checkout_metadata(&unpack_tree_opts.meta, switch_to_branch, oid, NULL);
if (!detach_head)
- unpack_tree_opts.reset = 1;
+ unpack_tree_opts.reset = UNPACK_RESET_PROTECT_UNTRACKED;
if (repo_read_index_unmerged(r) < 0) {
ret = error(_("could not read index"));