The next patch will create and manage filters in a new way, which means
that this bundle of data will have to be managed at a new callsite. Make
this bundle of data more manageable by putting it in a struct and
making it part of the list-objects-filter module's API.
Signed-off-by: Matthew DeVore <matv...@google.com>
---
list-objects-filter.c | 156 +++++++++++++++---------------------------
list-objects-filter.h | 31 ++++++---
list-objects.c | 45 ++++++------
3 files changed, 96 insertions(+), 136 deletions(-)
diff --git a/list-objects-filter.c b/list-objects-filter.c
index ee449de3f7..8e8616b9b8 100644
--- a/list-objects-filter.c
+++ b/list-objects-filter.c
@@ -19,82 +19,60 @@
* FILTER_SHOWN_BUT_REVISIT -- we set this bit on tree objects
* that have been shown, but should be revisited if they appear
* in the traversal (until we mark it SEEN). This is a way to
* let us silently de-dup calls to show() in the caller. This
* is subtly different from the "revision.h:SHOWN" and the
* "sha1-name.c:ONELINE_SEEN" bits. And also different from
* the non-de-dup usage in pack-bitmap.c
*/
#define FILTER_SHOWN_BUT_REVISIT (1<<21)
-/*
- * 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 {
- 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,
- void *filter_data_)
+ struct filter_context *ctx)
{
- 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 (ctx->omits)
+ oidset_insert(ctx->omits, &obj->oid);
return LOFR_MARK_SEEN; /* but not LOFR_DO_SHOW (hard omit) */
}
}
-static void *filter_blobs_none__init(
- struct oidset *omitted,
+static void filter_blobs_none__init(
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn)
+ struct filter_context *ctx)
{
- struct filter_blobs_none_data *d = xcalloc(1, sizeof(*d));
- d->omits = omitted;
-
- *filter_fn = filter_blobs_none;
- *filter_free_fn = free;
- return d;
+ ctx->filter_fn = filter_blobs_none;
}
-/*
- * A filter for list-objects to omit ALL trees and blobs from the traversal.
- * Can OPTIONALLY collect a list of the omitted OIDs.
- */
+/* A filter for list-objects to omit ALL trees and blobs from the traversal. */
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;
@@ -103,41 +81,41 @@ 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 filter_context *ctx,
int include_it)
{
- if (!filter_data->omits)
+ if (!ctx->omits)
return 0;
if (include_it)
- return oidset_remove(filter_data->omits, &obj->oid);
+ return oidset_remove(ctx->omits, &obj->oid);
else
- return oidset_insert(filter_data->omits, &obj->oid);
+ return oidset_insert(ctx->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,
- void *filter_data_)
+ struct filter_context *ctx)
{
- struct filter_trees_depth_data *filter_data = filter_data_;
+ struct filter_trees_depth_data *filter_data = ctx->data;
struct seen_map_entry *seen_info;
int include_it = filter_data->current_depth <
filter_data->exclude_depth;
int filter_res;
int already_seen;
/*
* Note that we do not use _MARK_SEEN in order to allow re-traversal in
* case we encounter a tree or blob again at a shallower depth.
*/
@@ -145,47 +123,47 @@ 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, ctx, 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, ctx, 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 (ctx->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++;
@@ -194,55 +172,48 @@ 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,
+static void filter_trees_depth__init(
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn)
+ struct filter_context *ctx)
{
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_fn = filter_trees_depth;
- *filter_free_fn = filter_trees_free;
- return d;
+ ctx->filter_fn = filter_trees_depth;
+ ctx->free_fn = filter_trees_free;
+ ctx->data = d;
}
-/*
- * A filter for list-objects to omit large blobs.
- * And to OPTIONALLY collect a list of the omitted OIDs.
- */
+/* A filter for list-objects to omit large blobs. */
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,
- void *filter_data_)
+ struct filter_context *ctx)
{
- struct filter_blobs_limit_data *filter_data = filter_data_;
+ struct filter_blobs_limit_data *filter_data = ctx->data;
unsigned long object_length;
enum object_type t;
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 */
@@ -263,44 +234,41 @@ 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 (ctx->omits)
+ oidset_insert(ctx->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 (ctx->omits)
+ oidset_remove(ctx->omits, &obj->oid);
return LOFR_MARK_SEEN | LOFR_DO_SHOW;
}
-static void *filter_blobs_limit__init(
- struct oidset *omitted,
+static void filter_blobs_limit__init(
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn)
+ struct filter_context *ctx)
{
struct filter_blobs_limit_data *d = xcalloc(1, sizeof(*d));
- d->omits = omitted;
d->max_bytes = filter_options->blob_limit_value;
- *filter_fn = filter_blobs_limit;
- *filter_free_fn = free;
- return d;
+ ctx->filter_fn = filter_blobs_limit;
+ ctx->free_fn = free;
+ ctx->data = d;
}
/*
* A filter driven by a sparse-checkout specification to only
* include blobs that a sparse checkout would populate.
*
* The sparse-checkout spec can be loaded from a blob with the
* given OID or from a local pathname. We allow an OID because
* the repo may be bare or we may be doing the filtering on the
* server.
@@ -319,36 +287,35 @@ 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,
- void *filter_data_)
+ struct filter_context *ctx)
{
- struct filter_sparse_data *filter_data = filter_data_;
+ struct filter_sparse_data *filter_data = ctx->data;
int val, dtype;
struct frame *frame;
switch (filter_situation) {
default:
BUG("unknown filter_situation: %d", filter_situation);
case LOFS_BEGIN_TREE:
assert(obj->type == OBJ_TREE);
dtype = DT_DIR;
@@ -414,128 +381,117 @@ 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 (ctx->omits)
+ oidset_remove(ctx->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 (ctx->omits)
+ oidset_insert(ctx->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,
+static void filter_sparse_oid__init(
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn)
+ struct filter_context *ctx)
{
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_fn = filter_sparse;
- *filter_free_fn = filter_sparse_free;
- return d;
+ ctx->filter_fn = filter_sparse;
+ ctx->free_fn = filter_sparse_free;
+ ctx->data = d;
}
-static void *filter_sparse_path__init(
- struct oidset *omitted,
+static void filter_sparse_path__init(
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn)
+ struct filter_context *ctx)
{
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_fn = filter_sparse;
- *filter_free_fn = filter_sparse_free;
- return d;
+ ctx->filter_fn = filter_sparse;
+ ctx->free_fn = filter_sparse_free;
+ ctx->data = d;
}
-typedef void *(*filter_init_fn)(
- struct oidset *omitted,
+typedef void (*filter_init_fn)(
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn);
+ struct filter_context *ctx);
/*
* Must match "enum list_objects_filter_choice".
*/
static filter_init_fn s_filters[] = {
NULL,
filter_blobs_none__init,
filter_blobs_limit__init,
filter_trees_depth__init,
filter_sparse_oid__init,
filter_sparse_path__init,
};
-void *list_objects_filter__init(
+void list_objects_filter__init(
struct oidset *omitted,
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn)
+ struct filter_context *ctx)
{
filter_init_fn init_fn;
assert((sizeof(s_filters) / sizeof(s_filters[0])) == LOFC__COUNT);
if (filter_options->choice >= LOFC__COUNT)
BUG("invalid list-objects filter choice: %d",
filter_options->choice);
+ memset(ctx, 0, sizeof(*ctx));
+ ctx->omits = omitted;
init_fn = s_filters[filter_options->choice];
if (init_fn)
- return init_fn(omitted, filter_options,
- filter_fn, filter_free_fn);
- *filter_fn = NULL;
- *filter_free_fn = NULL;
- return NULL;
+ init_fn(filter_options, ctx);
}
diff --git a/list-objects-filter.h b/list-objects-filter.h
index 1d45a4ad57..ee807f5d9b 100644
--- a/list-objects-filter.h
+++ b/list-objects-filter.h
@@ -53,37 +53,46 @@ enum list_objects_filter_result {
LOFR_DO_SHOW = 1<<1,
LOFR_SKIP_TREE = 1<<2,
};
enum list_objects_filter_situation {
LOFS_BEGIN_TREE,
LOFS_END_TREE,
LOFS_BLOB
};
-typedef 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,
- void *filter_data);
+struct filter_context {
+ enum list_objects_filter_result (*filter_fn)(
+ struct repository *r,
+ enum list_objects_filter_situation filter_situation,
+ struct object *obj,
+ const char *pathname,
+ const char *filename,
+ struct filter_context *ctx);
+ void (*free_fn)(void *filter_data);
-typedef void (*filter_free_fn)(void *filter_data);
+ struct oidset *omits;
+ void *data;
+};
/*
* Constructor for the set of defined list-objects filters.
* Returns a generic "void *filter_data".
*
* The returned "filter_fn" will be used by traverse_commit_list()
* to filter the results.
*
* The returned "filter_free_fn" is a destructor for the
* filter_data.
*/
-void *list_objects_filter__init(
+void list_objects_filter__init(
struct oidset *omitted,
struct list_objects_filter_options *filter_options,
- filter_object_fn *filter_fn,
- filter_free_fn *filter_free_fn);
+ struct filter_context *ctx);
+
+static inline void list_objects_filter__release(struct filter_context *ctx) {
+ if (ctx->data && ctx->free_fn)
+ ctx->free_fn(ctx->data);
+ memset(ctx, 0, sizeof(*ctx));
+}
#endif /* LIST_OBJECTS_FILTER_H */
diff --git a/list-objects.c b/list-objects.c
index b5651ddd5b..7a73f7deee 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -11,22 +11,21 @@
#include "list-objects-filter-options.h"
#include "packfile.h"
#include "object-store.h"
#include "trace.h"
struct traversal_context {
struct rev_info *revs;
show_object_fn show_object;
show_commit_fn show_commit;
void *show_data;
- filter_object_fn filter_fn;
- void *filter_data;
+ struct filter_context filter_ctx;
};
static void process_blob(struct traversal_context *ctx,
struct blob *blob,
struct strbuf *path,
const char *name)
{
struct object *obj = &blob->object;
size_t pathlen;
enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW;
@@ -47,25 +46,25 @@ static void process_blob(struct traversal_context *ctx,
* may cause the actual filter to report an incomplete list
* of missing objects.
*/
if (ctx->revs->exclude_promisor_objects &&
!has_object_file(&obj->oid) &&
is_promisor_object(&obj->oid))
return;
pathlen = path->len;
strbuf_addstr(path, name);
- if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
- r = ctx->filter_fn(ctx->revs->repo,
- LOFS_BLOB, obj,
- path->buf, &path->buf[pathlen],
- ctx->filter_data);
+ if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_ctx.filter_fn)
+ r = ctx->filter_ctx.filter_fn(ctx->revs->repo,
+ LOFS_BLOB, obj,
+ path->buf, &path->buf[pathlen],
+ &ctx->filter_ctx);
if (r & LOFR_MARK_SEEN)
obj->flags |= SEEN;
if (r & LOFR_DO_SHOW)
ctx->show_object(obj, path->buf, ctx->show_data);
strbuf_setlen(path, pathlen);
}
/*
* Processing a gitlink entry currently does nothing, since
* we do not recurse into the subproject.
@@ -179,42 +178,42 @@ static void process_tree(struct traversal_context *ctx,
*/
if (revs->exclude_promisor_objects &&
is_promisor_object(&obj->oid))
return;
if (!revs->do_not_die_on_missing_tree)
die("bad tree object %s", oid_to_hex(&obj->oid));
}
strbuf_addstr(base, name);
- if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
- r = ctx->filter_fn(ctx->revs->repo,
- LOFS_BEGIN_TREE, obj,
- base->buf, &base->buf[baselen],
- ctx->filter_data);
+ if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_ctx.filter_fn)
+ r = ctx->filter_ctx.filter_fn(ctx->revs->repo,
+ LOFS_BEGIN_TREE, obj,
+ base->buf, &base->buf[baselen],
+ &ctx->filter_ctx);
if (r & LOFR_MARK_SEEN)
obj->flags |= SEEN;
if (r & LOFR_DO_SHOW)
ctx->show_object(obj, base->buf, ctx->show_data);
if (base->len)
strbuf_addch(base, '/');
if (r & LOFR_SKIP_TREE)
trace_printf("Skipping contents of tree %s...\n", base->buf);
else if (!failed_parse)
process_tree_contents(ctx, tree, base);
- if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn) {
- r = ctx->filter_fn(ctx->revs->repo,
- LOFS_END_TREE, obj,
- base->buf, &base->buf[baselen],
- ctx->filter_data);
+ if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_ctx.filter_fn) {
+ r = ctx->filter_ctx.filter_fn(ctx->revs->repo,
+ LOFS_END_TREE, obj,
+ base->buf, &base->buf[baselen],
+ &ctx->filter_ctx);
if (r & LOFR_MARK_SEEN)
obj->flags |= SEEN;
if (r & LOFR_DO_SHOW)
ctx->show_object(obj, base->buf, ctx->show_data);
}
strbuf_setlen(base, baselen);
free_tree_buffer(tree);
}
@@ -395,38 +394,34 @@ static void do_traverse(struct traversal_context *ctx)
void traverse_commit_list(struct rev_info *revs,
show_commit_fn show_commit,
show_object_fn show_object,
void *show_data)
{
struct traversal_context ctx;
ctx.revs = revs;
ctx.show_commit = show_commit;
ctx.show_object = show_object;
ctx.show_data = show_data;
- ctx.filter_fn = NULL;
- ctx.filter_data = NULL;
+ memset(&ctx.filter_ctx, 0, sizeof(ctx.filter_ctx));
do_traverse(&ctx);
}
void traverse_commit_list_filtered(
struct list_objects_filter_options *filter_options,
struct rev_info *revs,
show_commit_fn show_commit,
show_object_fn show_object,
void *show_data,
struct oidset *omitted)
{
struct traversal_context ctx;
- filter_free_fn filter_free_fn = NULL;
+ memset(&ctx, 0, sizeof(ctx));
ctx.revs = revs;
ctx.show_object = show_object;
ctx.show_commit = show_commit;
ctx.show_data = show_data;
- ctx.filter_fn = NULL;
- ctx.filter_data = list_objects_filter__init(omitted, filter_options,
- &ctx.filter_fn,
&filter_free_fn);
+ list_objects_filter__init(omitted, filter_options, &ctx.filter_ctx);
do_traverse(&ctx);
- if (ctx.filter_data && filter_free_fn)
- filter_free_fn(ctx.filter_data);
+ list_objects_filter__release(&ctx.filter_ctx);
}
--
2.21.0
