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From: Matthew DeVore <matvore@google.com>
To: git@vger.kernel.org, jonathantanmy@google.com, jrn@google.com,
	dstolee@microsoft.com, jeffhost@microsoft.com,
	jrnieder@gmail.com, pclouds@gmail.com, peff@peff.net,
	emilyshaffer@google.com
Cc: Matthew DeVore <matvore@google.com>, matvore@comcast.net
Subject: [PATCH v3 02/10] list-objects-filter: put omits set in filter struct
Date: Thu, 13 Jun 2019 14:51:25 -0700	[thread overview]
Message-ID: <5e1792a67ab00b3373ea689e35db4704e387fbe2.1560462201.git.matvore@google.com> (raw)
In-Reply-To: <cover.1560462201.git.matvore@google.com>

The oidset *omits pointer must be accessed by the combine filter in a
type-agnostic way once the graph traversal is over. Store that pointer
in the general `filter` struct. This will be used in a follow-up patch
to implement the combine filter.

Signed-off-by: Matthew DeVore <matvore@google.com>
---
 list-objects-filter.c | 70 ++++++++++++++++---------------------------
 1 file changed, 26 insertions(+), 44 deletions(-)

diff --git a/list-objects-filter.c b/list-objects-filter.c
index 35e0bbe123..57bbf6ec1c 100644
--- a/list-objects-filter.c
+++ b/list-objects-filter.c
@@ -26,88 +26,76 @@
  */
 #define FILTER_SHOWN_BUT_REVISIT (1<<21)
 
 struct filter {
 	enum list_objects_filter_result (*filter_object_fn)(
 		struct repository *r,
 		enum list_objects_filter_situation filter_situation,
 		struct object *obj,
 		const char *pathname,
 		const char *filename,
+		struct oidset *omits,
 		void *filter_data);
 
 	void (*free_fn)(void *filter_data);
 
 	void *filter_data;
-};
 
-/*
- * A filter for list-objects to omit ALL blobs from the traversal.
- * And to OPTIONALLY collect a list of the omitted OIDs.
- */
-struct filter_blobs_none_data {
+	/* If non-NULL, the filter collects a list of the omitted OIDs here. */
 	struct oidset *omits;
 };
 
 static enum list_objects_filter_result filter_blobs_none(
 	struct repository *r,
 	enum list_objects_filter_situation filter_situation,
 	struct object *obj,
 	const char *pathname,
 	const char *filename,
+	struct oidset *omits,
 	void *filter_data_)
 {
-	struct filter_blobs_none_data *filter_data = filter_data_;
-
 	switch (filter_situation) {
 	default:
 		BUG("unknown filter_situation: %d", filter_situation);
 
 	case LOFS_BEGIN_TREE:
 		assert(obj->type == OBJ_TREE);
 		/* always include all tree objects */
 		return LOFR_MARK_SEEN | LOFR_DO_SHOW;
 
 	case LOFS_END_TREE:
 		assert(obj->type == OBJ_TREE);
 		return LOFR_ZERO;
 
 	case LOFS_BLOB:
 		assert(obj->type == OBJ_BLOB);
 		assert((obj->flags & SEEN) == 0);
 
-		if (filter_data->omits)
-			oidset_insert(filter_data->omits, &obj->oid);
+		if (omits)
+			oidset_insert(omits, &obj->oid);
 		return LOFR_MARK_SEEN; /* but not LOFR_DO_SHOW (hard omit) */
 	}
 }
 
 static void filter_blobs_none__init(
-	struct oidset *omitted,
 	struct list_objects_filter_options *filter_options,
 	struct filter *filter)
 {
-	struct filter_blobs_none_data *d = xcalloc(1, sizeof(*d));
-	d->omits = omitted;
-
-	filter->filter_data = d;
 	filter->filter_object_fn = filter_blobs_none;
 	filter->free_fn = free;
 }
 
 /*
  * A filter for list-objects to omit ALL trees and blobs from the traversal.
  * Can OPTIONALLY collect a list of the omitted OIDs.
  */
 struct filter_trees_depth_data {
-	struct oidset *omits;
-
 	/*
 	 * Maps trees to the minimum depth at which they were seen. It is not
 	 * necessary to re-traverse a tree at deeper or equal depths than it has
 	 * already been traversed.
 	 *
 	 * We can't use LOFR_MARK_SEEN for tree objects since this will prevent
 	 * it from being traversed at shallower depths.
 	 */
 	struct oidmap seen_at_depth;
 
@@ -116,38 +104,39 @@ struct filter_trees_depth_data {
 };
 
 struct seen_map_entry {
 	struct oidmap_entry base;
 	size_t depth;
 };
 
 /* Returns 1 if the oid was in the omits set before it was invoked. */
 static int filter_trees_update_omits(
 	struct object *obj,
-	struct filter_trees_depth_data *filter_data,
+	struct oidset *omits,
 	int include_it)
 {
-	if (!filter_data->omits)
+	if (!omits)
 		return 0;
 
 	if (include_it)
-		return oidset_remove(filter_data->omits, &obj->oid);
+		return oidset_remove(omits, &obj->oid);
 	else
-		return oidset_insert(filter_data->omits, &obj->oid);
+		return oidset_insert(omits, &obj->oid);
 }
 
 static enum list_objects_filter_result filter_trees_depth(
 	struct repository *r,
 	enum list_objects_filter_situation filter_situation,
 	struct object *obj,
 	const char *pathname,
 	const char *filename,
+	struct oidset *omits,
 	void *filter_data_)
 {
 	struct filter_trees_depth_data *filter_data = filter_data_;
 	struct seen_map_entry *seen_info;
 	int include_it = filter_data->current_depth <
 		filter_data->exclude_depth;
 	int filter_res;
 	int already_seen;
 
 	/*
@@ -158,47 +147,47 @@ static enum list_objects_filter_result filter_trees_depth(
 	switch (filter_situation) {
 	default:
 		BUG("unknown filter_situation: %d", filter_situation);
 
 	case LOFS_END_TREE:
 		assert(obj->type == OBJ_TREE);
 		filter_data->current_depth--;
 		return LOFR_ZERO;
 
 	case LOFS_BLOB:
-		filter_trees_update_omits(obj, filter_data, include_it);
+		filter_trees_update_omits(obj, omits, include_it);
 		return include_it ? LOFR_MARK_SEEN | LOFR_DO_SHOW : LOFR_ZERO;
 
 	case LOFS_BEGIN_TREE:
 		seen_info = oidmap_get(
 			&filter_data->seen_at_depth, &obj->oid);
 		if (!seen_info) {
 			seen_info = xcalloc(1, sizeof(*seen_info));
 			oidcpy(&seen_info->base.oid, &obj->oid);
 			seen_info->depth = filter_data->current_depth;
 			oidmap_put(&filter_data->seen_at_depth, seen_info);
 			already_seen = 0;
 		} else {
 			already_seen =
 				filter_data->current_depth >= seen_info->depth;
 		}
 
 		if (already_seen) {
 			filter_res = LOFR_SKIP_TREE;
 		} else {
 			int been_omitted = filter_trees_update_omits(
-				obj, filter_data, include_it);
+				obj, omits, include_it);
 			seen_info->depth = filter_data->current_depth;
 
 			if (include_it)
 				filter_res = LOFR_DO_SHOW;
-			else if (filter_data->omits && !been_omitted)
+			else if (omits && !been_omitted)
 				/*
 				 * Must update omit information of children
 				 * recursively; they have not been omitted yet.
 				 */
 				filter_res = LOFR_ZERO;
 			else
 				filter_res = LOFR_SKIP_TREE;
 		}
 
 		filter_data->current_depth++;
@@ -208,50 +197,48 @@ static enum list_objects_filter_result filter_trees_depth(
 
 static void filter_trees_free(void *filter_data) {
 	struct filter_trees_depth_data *d = filter_data;
 	if (!d)
 		return;
 	oidmap_free(&d->seen_at_depth, 1);
 	free(d);
 }
 
 static void filter_trees_depth__init(
-	struct oidset *omitted,
 	struct list_objects_filter_options *filter_options,
 	struct filter *filter)
 {
 	struct filter_trees_depth_data *d = xcalloc(1, sizeof(*d));
-	d->omits = omitted;
 	oidmap_init(&d->seen_at_depth, 0);
 	d->exclude_depth = filter_options->tree_exclude_depth;
 	d->current_depth = 0;
 
 	filter->filter_data = d;
 	filter->filter_object_fn = filter_trees_depth;
 	filter->free_fn = filter_trees_free;
 }
 
 /*
  * A filter for list-objects to omit large blobs.
  * And to OPTIONALLY collect a list of the omitted OIDs.
  */
 struct filter_blobs_limit_data {
-	struct oidset *omits;
 	unsigned long max_bytes;
 };
 
 static enum list_objects_filter_result filter_blobs_limit(
 	struct repository *r,
 	enum list_objects_filter_situation filter_situation,
 	struct object *obj,
 	const char *pathname,
 	const char *filename,
+	struct oidset *omits,
 	void *filter_data_)
 {
 	struct filter_blobs_limit_data *filter_data = filter_data_;
 	unsigned long object_length;
 	enum object_type t;
 
 	switch (filter_situation) {
 	default:
 		BUG("unknown filter_situation: %d", filter_situation);
 
@@ -275,38 +262,36 @@ static enum list_objects_filter_result filter_blobs_limit(
 			 * apply the size filter criteria.  Be conservative
 			 * and force show it (and let the caller deal with
 			 * the ambiguity).
 			 */
 			goto include_it;
 		}
 
 		if (object_length < filter_data->max_bytes)
 			goto include_it;
 
-		if (filter_data->omits)
-			oidset_insert(filter_data->omits, &obj->oid);
+		if (omits)
+			oidset_insert(omits, &obj->oid);
 		return LOFR_MARK_SEEN; /* but not LOFR_DO_SHOW (hard omit) */
 	}
 
 include_it:
-	if (filter_data->omits)
-		oidset_remove(filter_data->omits, &obj->oid);
+	if (omits)
+		oidset_remove(omits, &obj->oid);
 	return LOFR_MARK_SEEN | LOFR_DO_SHOW;
 }
 
 static void filter_blobs_limit__init(
-	struct oidset *omitted,
 	struct list_objects_filter_options *filter_options,
 	struct filter *filter)
 {
 	struct filter_blobs_limit_data *d = xcalloc(1, sizeof(*d));
-	d->omits = omitted;
 	d->max_bytes = filter_options->blob_limit_value;
 
 	filter->filter_data = d;
 	filter->filter_object_fn = filter_blobs_limit;
 	filter->free_fn = free;
 }
 
 /*
  * A filter driven by a sparse-checkout specification to only
  * include blobs that a sparse checkout would populate.
@@ -330,33 +315,33 @@ struct frame {
 	 * omitted objects.
 	 *
 	 * 0 if everything (recursively) contained in this directory
 	 * has been explicitly included (SHOWN) in the result and
 	 * the directory may be short-cut later in the traversal.
 	 */
 	unsigned child_prov_omit : 1;
 };
 
 struct filter_sparse_data {
-	struct oidset *omits;
 	struct exclude_list el;
 
 	size_t nr, alloc;
 	struct frame *array_frame;
 };
 
 static enum list_objects_filter_result filter_sparse(
 	struct repository *r,
 	enum list_objects_filter_situation filter_situation,
 	struct object *obj,
 	const char *pathname,
 	const char *filename,
+	struct oidset *omits,
 	void *filter_data_)
 {
 	struct filter_sparse_data *filter_data = filter_data_;
 	int val, dtype;
 	struct frame *frame;
 
 	switch (filter_situation) {
 	default:
 		BUG("unknown filter_situation: %d", filter_situation);
 
@@ -425,98 +410,93 @@ static enum list_objects_filter_result filter_sparse(
 
 		frame = &filter_data->array_frame[filter_data->nr];
 
 		dtype = DT_REG;
 		val = is_excluded_from_list(pathname, strlen(pathname),
 					    filename, &dtype, &filter_data->el,
 					    r->index);
 		if (val < 0)
 			val = frame->defval;
 		if (val > 0) {
-			if (filter_data->omits)
-				oidset_remove(filter_data->omits, &obj->oid);
+			if (omits)
+				oidset_remove(omits, &obj->oid);
 			return LOFR_MARK_SEEN | LOFR_DO_SHOW;
 		}
 
 		/*
 		 * Provisionally omit it.  We've already established that
 		 * this pathname is not in the sparse-checkout specification
 		 * with the CURRENT pathname, so we *WANT* to omit this blob.
 		 *
 		 * However, a pathname elsewhere in the tree may also
 		 * reference this same blob, so we cannot reject it yet.
 		 * Leave the LOFR_ bits unset so that if the blob appears
 		 * again in the traversal, we will be asked again.
 		 */
-		if (filter_data->omits)
-			oidset_insert(filter_data->omits, &obj->oid);
+		if (omits)
+			oidset_insert(omits, &obj->oid);
 
 		/*
 		 * Remember that at least 1 blob in this tree was
 		 * provisionally omitted.  This prevents us from short
 		 * cutting the tree in future iterations.
 		 */
 		frame->child_prov_omit = 1;
 		return LOFR_ZERO;
 	}
 }
 
 
 static void filter_sparse_free(void *filter_data)
 {
 	struct filter_sparse_data *d = filter_data;
 	/* TODO free contents of 'd' */
 	free(d);
 }
 
 static void filter_sparse_oid__init(
-	struct oidset *omitted,
 	struct list_objects_filter_options *filter_options,
 	struct filter *filter)
 {
 	struct filter_sparse_data *d = xcalloc(1, sizeof(*d));
-	d->omits = omitted;
 	if (add_excludes_from_blob_to_list(filter_options->sparse_oid_value,
 					   NULL, 0, &d->el) < 0)
 		die("could not load filter specification");
 
 	ALLOC_GROW(d->array_frame, d->nr + 1, d->alloc);
 	d->array_frame[d->nr].defval = 0; /* default to include */
 	d->array_frame[d->nr].child_prov_omit = 0;
 
 	filter->filter_data = d;
 	filter->filter_object_fn = filter_sparse;
 	filter->free_fn = filter_sparse_free;
 }
 
 static void filter_sparse_path__init(
-	struct oidset *omitted,
 	struct list_objects_filter_options *filter_options,
 	struct filter *filter)
 {
 	struct filter_sparse_data *d = xcalloc(1, sizeof(*d));
-	d->omits = omitted;
 	if (add_excludes_from_file_to_list(filter_options->sparse_path_value,
 					   NULL, 0, &d->el, NULL) < 0)
 		die("could not load filter specification");
 
 	ALLOC_GROW(d->array_frame, d->nr + 1, d->alloc);
 	d->array_frame[d->nr].defval = 0; /* default to include */
 	d->array_frame[d->nr].child_prov_omit = 0;
 
 	filter->filter_data = d;
 	filter->filter_object_fn = filter_sparse;
 	filter->free_fn = filter_sparse_free;
 }
 
 typedef void (*filter_init_fn)(
-	struct oidset *omitted,
 	struct list_objects_filter_options *filter_options,
 	struct filter *filter);
 
 /*
  * Must match "enum list_objects_filter_choice".
  */
 static filter_init_fn s_filters[] = {
 	NULL,
 	filter_blobs_none__init,
 	filter_blobs_limit__init,
@@ -536,35 +516,37 @@ struct filter *list_objects_filter__init(
 
 	if (filter_options->choice >= LOFC__COUNT)
 		BUG("invalid list-objects filter choice: %d",
 		    filter_options->choice);
 
 	init_fn = s_filters[filter_options->choice];
 	if (!init_fn)
 		return NULL;
 
 	filter = xcalloc(1, sizeof(*filter));
-	init_fn(omitted, filter_options, filter);
+	filter->omits = omitted;
+	init_fn(filter_options, filter);
 	return filter;
 }
 
 enum list_objects_filter_result list_objects_filter__filter_object(
 	struct repository *r,
 	enum list_objects_filter_situation filter_situation,
 	struct object *obj,
 	const char *pathname,
 	const char *filename,
 	struct filter *filter)
 {
 	if (filter && (obj->flags & NOT_USER_GIVEN))
 		return filter->filter_object_fn(r, filter_situation, obj,
 						pathname, filename,
+						filter->omits,
 						filter->filter_data);
 	/*
 	 * No filter is active or user gave object explicitly. Choose default
 	 * behavior based on filter situation.
 	 */
 	if (filter_situation == LOFS_END_TREE)
 		return 0;
 	return LOFR_MARK_SEEN | LOFR_DO_SHOW;
 }
 
-- 
2.21.0


  parent reply	other threads:[~2019-06-13 21:51 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-01  0:35 [PATCH v2 0/9] Filter combination Matthew DeVore
2019-06-01  0:35 ` [PATCH v2 1/9] list-objects-filter: make API easier to use Matthew DeVore
2019-06-01  0:35 ` [PATCH v2 2/9] list-objects-filter: put omits set in filter struct Matthew DeVore
2019-06-01  0:35 ` [PATCH v2 3/9] list-objects-filter-options: always supply *errbuf Matthew DeVore
2019-06-01  0:35 ` [PATCH v2 4/9] list-objects-filter: implement composite filters Matthew DeVore
2019-06-03 21:51   ` Jeff Hostetler
2019-06-06 22:32     ` Matthew DeVore
2019-06-07 17:58       ` Jeff Hostetler
2019-06-01  0:35 ` [PATCH v2 5/9] list-objects-filter-options: move error check up Matthew DeVore
2019-06-01  0:36 ` [PATCH v2 6/9] list-objects-filter-options: make filter_spec a strbuf Matthew DeVore
2019-06-10 20:13   ` Junio C Hamano
2019-06-11  0:34     ` Matthew DeVore
2019-06-11 17:33       ` Junio C Hamano
2019-06-11 18:44         ` Matthew DeVore
2019-06-11 21:34           ` Matthew DeVore
2019-06-11 21:48           ` Junio C Hamano
2019-06-12  0:37             ` Matthew DeVore
2019-06-12 14:55               ` Matthew DeVore
2019-06-01  0:36 ` [PATCH v2 7/9] list-objects-filter-options: allow mult. --filter Matthew DeVore
2019-06-01  0:36 ` [PATCH v2 8/9] list-objects-filter-options: clean up use of ALLOC_GROW Matthew DeVore
2019-06-03 22:07   ` Jacob Keller
2019-06-03 22:39     ` Matthew DeVore
2019-06-04  3:16       ` Jacob Keller
2019-06-01  0:36 ` [PATCH v2 9/9] list-objects-filter-options: make parser void Matthew DeVore
2019-06-03 21:35 ` [PATCH v2 0/9] Filter combination Jeff Hostetler
2019-06-13 21:51 ` [PATCH v3 00/10] " Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 01/10] list-objects-filter: make API easier to use Matthew DeVore
2019-06-13 21:51   ` Matthew DeVore [this message]
2019-06-13 21:51   ` [PATCH v3 03/10] list-objects-filter-options: always supply *errbuf Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 04/10] list-objects-filter: implement composite filters Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 05/10] list-objects-filter-options: move error check up Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 06/10] list-objects-filter-options: make filter_spec a string_list Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 07/10] strbuf: give URL-encoding API a char predicate fn Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 08/10] list-objects-filter-options: allow mult. --filter Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 09/10] list-objects-filter-options: clean up use of ALLOC_GROW Matthew DeVore
2019-06-13 21:51   ` [PATCH v3 10/10] list-objects-filter-options: make parser void Matthew DeVore
2019-06-14 19:50   ` [PATCH v3 00/10] Filter combination Junio C Hamano
2019-06-15  0:40 ` [PATCH v4 " Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 01/10] list-objects-filter: make API easier to use Matthew DeVore
2019-06-21 22:58     ` Jonathan Tan
2019-06-27  0:46       ` Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 02/10] list-objects-filter: put omits set in filter struct Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 03/10] list-objects-filter-options: always supply *errbuf Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 04/10] list-objects-filter: implement composite filters Matthew DeVore
2019-06-18  8:42     ` Johannes Schindelin
2019-06-18 20:22       ` Matthew DeVore
2019-06-21 18:17         ` Johannes Schindelin
2019-06-22  0:26     ` Jonathan Tan
2019-06-27 21:12       ` Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 05/10] list-objects-filter-options: move error check up Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 06/10] list-objects-filter-options: make filter_spec a string_list Matthew DeVore
2019-06-22  0:37     ` Jonathan Tan
2019-06-27 21:17       ` Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 07/10] strbuf: give URL-encoding API a char predicate fn Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 08/10] list-objects-filter-options: allow mult. --filter Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 09/10] list-objects-filter-options: clean up use of ALLOC_GROW Matthew DeVore
2019-06-15  0:40   ` [PATCH v4 10/10] list-objects-filter-options: make parser void Matthew DeVore
2019-06-22  0:46     ` Jonathan Tan
2019-06-27 21:24       ` Matthew DeVore
2019-06-27 22:27         ` Matthew DeVore
2019-06-18  1:25   ` [PATCH v4 00/10] Filter combination Junio C Hamano
2019-06-27 22:54 ` [PATCH v5 " Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 01/10] list-objects-filter: encapsulate filter components Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 02/10] list-objects-filter: put omits set in filter struct Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 03/10] list-objects-filter-options: always supply *errbuf Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 04/10] list-objects-filter: implement composite filters Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 05/10] list-objects-filter-options: move error check up Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 06/10] list-objects-filter-options: make filter_spec a string_list Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 07/10] strbuf: give URL-encoding API a char predicate fn Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 08/10] list-objects-filter-options: allow mult. --filter Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 09/10] list-objects-filter-options: clean up use of ALLOC_GROW Matthew DeVore
2019-06-27 22:54   ` [PATCH v5 10/10] list-objects-filter-options: make parser void Matthew DeVore
2019-06-28 16:05   ` [PATCH v5 00/10] Filter combination Junio C Hamano
2019-06-28 17:16   ` Jonathan Tan

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