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tree.h API: expose read_tree_1() as read_tree_at() 

Rename the static read_tree_1() function to read_tree_at(). This
function works just like read_tree_recursive(), except you provide
your own strbuf.

This step doesn't make much sense now, but in follow-up commits I'll
remove the base/baselen/stage arguments to read_tree_recursive(). At
that point an anticipated in-tree user[1] for the old
read_tree_recursive() couldn't provide a path to start the
traversal.

Let's give them a function to do so with an API that makes more sense
for them, by taking a strbuf we should be able to avoid more casting
and/or reallocations in the future.

1. https://lore.kernel.org/git/xmqqft106sok.fsf@gitster.g

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2021-03-20 23:37:50 +01:00 committed by Junio C Hamano
parent 7367d88261
commit 6c9fc42e9f
2 changed files with 15 additions and 8 deletions
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17
tree.c
View File

@ -11,10 +11,11 @@
const char *tree_type = "tree";
static int read_tree_1(struct repository *r,
struct tree *tree, struct strbuf *base,
int stage, const struct pathspec *pathspec,
read_tree_fn_t fn, void *context)
int read_tree_at(struct repository *r,
struct tree *tree, struct strbuf *base,
int stage,
const struct pathspec *pathspec,
read_tree_fn_t fn, void *context)
{
struct tree_desc desc;
struct name_entry entry;
@ -71,9 +72,9 @@ static int read_tree_1(struct repository *r,
len = tree_entry_len(&entry);
strbuf_add(base, entry.path, len);
strbuf_addch(base, '/');
retval = read_tree_1(r, lookup_tree(r, &oid),
base, stage, pathspec,
fn, context);
retval = read_tree_at(r, lookup_tree(r, &oid),
base, stage, pathspec,
fn, context);
strbuf_setlen(base, oldlen);
if (retval)
return -1;
@ -91,7 +92,7 @@ int read_tree_recursive(struct repository *r,
int ret;
strbuf_add(&sb, base, baselen);
ret = read_tree_1(r, tree, &sb, stage, pathspec, fn, context);
ret = read_tree_at(r, tree, &sb, stage, pathspec, fn, context);
strbuf_release(&sb);
return ret;
}

6
tree.h
View File

@ -33,6 +33,12 @@ int cmp_cache_name_compare(const void *a_, const void *b_);
#define READ_TREE_RECURSIVE 1
typedef int (*read_tree_fn_t)(const struct object_id *, struct strbuf *, const char *, unsigned int, int, void *);
int read_tree_at(struct repository *r,
struct tree *tree, struct strbuf *base,
int stage,
const struct pathspec *pathspec,
read_tree_fn_t fn, void *context);
int read_tree_recursive(struct repository *r,
struct tree *tree,
const char *base, int baselen,