mirror/git
1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-09-28 16:13:01 +02:00
Code

ls-files: refactor away read_tree()

Browse Source 
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@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2021-03-20 23:37:48 +01:00 committed by Junio C Hamano
parent fcc7c12f11
commit 9614ad3ce0
1 changed files with 34 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
builtin/ls-files.c
View File

@ -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)) {