diff: add --ita-[in]visible-in-index

The option --ita-invisible-in-index exposes the "ita_invisible_in_index"
diff flag to outside to allow easier experimentation with this new mode.
The "plan" is to make --ita-invisible-in-index default to keep consistent
behavior with 'status' and 'commit', but a bunch other commands like
'apply', 'merge', 'reset'.... need to be taken into consideration as well.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2016-10-24 17:42:20 +07:00 коммит произвёл Junio C Hamano
Родитель 425a28e0a4
Коммит b42b451919
3 изменённых файлов: 15 добавлений и 1 удалений

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@ -570,5 +570,13 @@ endif::git-format-patch[]
--line-prefix=<prefix>::
Prepend an additional prefix to every line of output.
--ita-invisible-in-index::
By default entries added by "git add -N" appear as an existing
empty file in "git diff" and a new file in "git diff --cached".
This option makes the entry appear as a new file in "git diff"
and non-existent in "git diff --cached". This option could be
reverted with `--ita-visible-in-index`. Both options are
experimental and could be removed in future.
For more detailed explanation on these common options, see also
linkgit:gitdiffcore[7].

4
diff.c
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@ -3951,6 +3951,10 @@ int diff_opt_parse(struct diff_options *options,
return parse_submodule_opt(options, arg);
else if (skip_prefix(arg, "--ws-error-highlight=", &arg))
return parse_ws_error_highlight(options, arg);
else if (!strcmp(arg, "--ita-invisible-in-index"))
options->ita_invisible_in_index = 1;
else if (!strcmp(arg, "--ita-visible-in-index"))
options->ita_invisible_in_index = 0;
/* misc options */
else if (!strcmp(arg, "-z"))

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@ -57,7 +57,9 @@ test_expect_success 'i-t-a entry is simply ignored' '
git add -N nitfol &&
git commit -m second &&
test $(git ls-tree HEAD -- nitfol | wc -l) = 0 &&
test $(git diff --name-only HEAD -- nitfol | wc -l) = 1
test $(git diff --name-only HEAD -- nitfol | wc -l) = 1 &&
test $(git diff --name-only --ita-invisible-in-index HEAD -- nitfol | wc -l) = 0 &&
test $(git diff --name-only --ita-invisible-in-index -- nitfol | wc -l) = 1
'
test_expect_success 'can commit with an unrelated i-t-a entry in index' '