Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx> writes:
> Intent-to-add entries are basically "I may want to commit these files
> later, but for now they are untracked". As such, when the user does "git
> reset --hard <tree>", which removes i-t-a entries from the index, i-t-a
> entries in worktree should be kept as untracked.
Hmm, I can see that the control flow of "reset --hard" for an i-t-a
path does pass through this function, but it is not very obvious
to see how this will not negatively affect other uses of the
unpack-trees machinery (e.g. "checkout" and "merge", especially when
such a path needs to turn into a directory by getting removed).
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
> ---
> Lost two files today, luckily I had a backup.
>
> t/t2203-add-intent.sh | 15 +++++++++++++++
> unpack-trees.c | 2 +-
> 2 files changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/t/t2203-add-intent.sh b/t/t2203-add-intent.sh
> index 2a4a749..63086bf 100755
> --- a/t/t2203-add-intent.sh
> +++ b/t/t2203-add-intent.sh
> @@ -82,5 +82,20 @@ test_expect_success 'cache-tree invalidates i-t-a paths' '
> test_cmp expect actual
> '
>
> +test_expect_success 'reset --hard leaves on-disk ita entries alone' '
> + git init keep-ita &&
> + (
> + cd keep-ita &&
> + echo abc >abc &&
> + echo def >def &&
> + git add abc &&
> + git commit -m abc &&
> + git add -N def &&
> + git reset --hard HEAD &&
> + echo def >expected &&
> + test_cmp expected def
> + )
> +'
> +
> test_done
>
> diff --git a/unpack-trees.c b/unpack-trees.c
> index 9f55cc2..1a2271b 100644
> --- a/unpack-trees.c
> +++ b/unpack-trees.c
> @@ -104,7 +104,7 @@ static int do_add_entry(struct unpack_trees_options *o, struct cache_entry *ce,
> {
> clear |= CE_HASHED;
>
> - if (set & CE_REMOVE)
> + if ((set & CE_REMOVE) && !ce_intent_to_add(ce))
> set |= CE_WT_REMOVE;
>
> ce->ce_flags = (ce->ce_flags & ~clear) | set;
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