[PATCH v10 6/8] wt-status: provide function to expose status for trees
- From
Patrick Steinhardt <ps@pks.im>
- Date
- Jan 12, 2026, 14:15 UTC
- Message-ID
- <20260112-b4-pks-history-builtin-v10-6-e3c6aa5b4cec@pks.im>
- In-Reply-To
- <20260112-b4-pks-history-builtin-v10-0-e3c6aa5b4cec@pks.im>
The "wt-status" subsystem is responsible for printing status information around the current state of the working tree. This most importantly includes information around whether the working tree or the index have any changes.
We're about to introduce a new command where the changes in neither of them are actually relevant to us. Instead, what we want is to format the changes between two different trees. While it is a little bit of a stretch to add this as functionality to _working tree_ status, it doesn't make any sense to open-code this functionality, either.
Implement a new function `wt_status_collect_changes_trees()` that diffs two trees and formats the status accordingly. This function is not yet used, but will be in a subsequent commit.
Signed-off-by: Patrick Steinhardt <ps@pks.im> --- wt-status.c | 24 ++++++++++++++++++++++++ wt-status.h | 9 +++++++++ 2 files changed, 33 insertions(+)
diff --git a/wt-status.c b/wt-status.c index e12adb26b9..95942399f8 100644 --- a/wt-status.c +++ b/wt-status.c @@ -612,6 +612,30 @@ static void wt_status_collect_updated_cb(struct diff_queue_struct *q, } } +void wt_status_collect_changes_trees(struct wt_status *s, + const struct object_id *old_treeish, + const struct object_id *new_treeish) +{ + struct diff_options opts = { 0 }; + + repo_diff_setup(s->repo, &opts); + opts.output_format = DIFF_FORMAT_CALLBACK; + opts.format_callback = wt_status_collect_updated_cb; + opts.format_callback_data = s; + opts.detect_rename = s->detect_rename >= 0 ? s->detect_rename : opts.detect_rename; + opts.rename_limit = s->rename_limit >= 0 ? s->rename_limit : opts.rename_limit; + opts.rename_score = s->rename_score >= 0 ? s->rename_score : opts.rename_score; + opts.flags.recursive = 1; + diff_setup_done(&opts); + + diff_tree_oid(old_treeish, new_treeish, "", &opts); + diffcore_std(&opts); + diff_flush(&opts); + wt_status_get_state(s->repo, &s->state, 0); + + diff_free(&opts); +} + static void wt_status_collect_changes_worktree(struct wt_status *s) { struct rev_info rev; diff --git a/wt-status.h b/wt-status.h index e40a27214a..e9fe32e98c 100644 --- a/wt-status.h +++ b/wt-status.h @@ -153,6 +153,15 @@ void wt_status_add_cut_line(struct wt_status *s); void wt_status_prepare(struct repository *r, struct wt_status *s); void wt_status_print(struct wt_status *s); void wt_status_collect(struct wt_status *s); + +/* + * Collect all changes between the two trees. Changes will be displayed as if + * they were staged into the index. + */ +void wt_status_collect_changes_trees(struct wt_status *s, + const struct object_id *old_treeish, + const struct object_id *new_treeish); + /* * Frees the buffers allocated by wt_status_collect. */
-- 2.52.0.590.g1f87b77810.dirty