Refactor away the read_tree() function into its only user,
overlay_tree_on_index().
First, change read_one_entry_opt() to use the strbuf parameter
read_tree_recursive() passes down in place. This finishes up a partial
refactoring started in 6a0b0b6de99 (tree.c: update read_tree_recursive
callback to pass strbuf as base, 2014-11-30).
Moving the rest into overlay_tree_on_index() makes this index juggling
we're doing easier to read.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
builtin/ls-files.c | 77 ++++++++++++++++++++--------------------------
1 file changed, 34 insertions(+), 43 deletions(-)
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 3149a2769a3..aa153423b80 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -423,7 +423,7 @@ static int get_common_prefix_len(const char *common_prefix)
static int read_one_entry_opt(struct index_state *istate,
const struct object_id *oid,
- const char *base, int baselen,
+ struct strbuf *base,
const char *pathname,
unsigned mode, int opt)
{
@@ -434,13 +434,13 @@ static int read_one_entry_opt(struct index_state *istate,
return READ_TREE_RECURSIVE;
len = strlen(pathname);
- ce = make_empty_cache_entry(istate, baselen + len);
+ ce = make_empty_cache_entry(istate, base->len + len);
ce->ce_mode = create_ce_mode(mode);
ce->ce_flags = create_ce_flags(1);
- ce->ce_namelen = baselen + len;
- memcpy(ce->name, base, baselen);
- memcpy(ce->name + baselen, pathname, len+1);
+ ce->ce_namelen = base->len + len;
+ memcpy(ce->name, base->buf, base->len);
+ memcpy(ce->name + base->len, pathname, len+1);
oidcpy(&ce->oid, oid);
return add_index_entry(istate, ce, opt);
}
@@ -450,7 +450,7 @@ static int read_one_entry(const struct object_id *oid, struct strbuf *base,
void *context)
{
struct index_state *istate = context;
- return read_one_entry_opt(istate, oid, base->buf, base->len, pathname,
+ return read_one_entry_opt(istate, oid, base, pathname,
mode,
ADD_CACHE_OK_TO_ADD|ADD_CACHE_SKIP_DFCHECK);
}
@@ -464,42 +464,8 @@ static int read_one_entry_quick(const struct object_id *oid, struct strbuf *base
void *context)
{
struct index_state *istate = context;
- return read_one_entry_opt(istate, oid, base->buf, base->len, pathname,
- mode,
- ADD_CACHE_JUST_APPEND);
-}
-
-
-static int read_tree(struct repository *r, struct tree *tree,
- struct pathspec *match, struct index_state *istate)
-{
- read_tree_fn_t fn = NULL;
- int i, err;
-
-
- /*
- * See if we have cache entry at the stage. If so,
- * do it the original slow way, otherwise, append and then
- * sort at the end.
- */
- for (i = 0; !fn && i < istate->cache_nr; i++) {
- const struct cache_entry *ce = istate->cache[i];
- if (ce_stage(ce) == 1)
- fn = read_one_entry;
- }
-
- if (!fn)
- fn = read_one_entry_quick;
- err = read_tree_recursive(r, tree, "", 0, 0, match, fn, istate);
- if (fn == read_one_entry || err)
- return err;
-
- /*
- * Sort the cache entry -- we need to nuke the cache tree, though.
- */
- cache_tree_free(&istate->cache_tree);
- QSORT(istate->cache, istate->cache_nr, cmp_cache_name_compare);
- return 0;
+ return read_one_entry_opt(istate, oid, base, pathname,
+ mode, ADD_CACHE_JUST_APPEND);
}
/*
@@ -518,6 +484,8 @@ void overlay_tree_on_index(struct index_state *istate,
struct pathspec pathspec;
struct cache_entry *last_stage0 = NULL;
int i;
+ read_tree_fn_t fn = NULL;
+ int err;
if (get_oid(tree_name, &oid))
die("tree-ish %s not found.", tree_name);
@@ -540,9 +508,32 @@ void overlay_tree_on_index(struct index_state *istate,
PATHSPEC_PREFER_CWD, prefix, matchbuf);
} else
memset(&pathspec, 0, sizeof(pathspec));
- if (read_tree(the_repository, tree, &pathspec, istate))
+
+ /*
+ * See if we have cache entry at the stage. If so,
+ * do it the original slow way, otherwise, append and then
+ * sort at the end.
+ */
+ for (i = 0; !fn && i < istate->cache_nr; i++) {
+ const struct cache_entry *ce = istate->cache[i];
+ if (ce_stage(ce) == 1)
+ fn = read_one_entry;
+ }
+
+ if (!fn)
+ fn = read_one_entry_quick;
+ err = read_tree_recursive(the_repository, tree, "", 0, 1, &pathspec, fn, istate);
+ if (err)
die("unable to read tree entries %s", tree_name);
+ /*
+ * Sort the cache entry -- we need to nuke the cache tree, though.
+ */
+ if (fn == read_one_entry_quick) {
+ cache_tree_free(&istate->cache_tree);
+ QSORT(istate->cache, istate->cache_nr, cmp_cache_name_compare);
+ }
+
for (i = 0; i < istate->cache_nr; i++) {
struct cache_entry *ce = istate->cache[i];
switch (ce_stage(ce)) {
--
2.31.0.286.gc175f2cb894
