A small step towards making files-backend works as a non-main ref store
using the newly added store-aware API.
For the record, `join` and `nm` on refs.o and files-backend.o tell me
that files-backend no longer uses functions that defaults to
get_main_ref_store().
I'm not yet comfortable at the idea of removing
files_assert_main_repository() (or converting REF_STORE_MAIN to
REF_STORE_WRITE). More staring and testing is required before that can
happen. Well, except peel_ref(). I'm pretty sure that function is safe.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
refs/files-backend.c | 85 ++++++++++++++++++++++++++++++----------------------
1 file changed, 49 insertions(+), 36 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index dafddefd3..09c280fd3 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1836,8 +1836,6 @@ static int files_peel_ref(struct ref_store *ref_store,
int flag;
unsigned char base[20];
- files_assert_main_repository(refs, "peel_ref");
-
if (current_ref_iter && current_ref_iter->refname == refname) {
struct object_id peeled;
@@ -1847,7 +1845,8 @@ static int files_peel_ref(struct ref_store *ref_store,
return 0;
}
- if (read_ref_full(refname, RESOLVE_REF_READING, base, &flag))
+ if (refs_read_ref_full(ref_store, refname,
+ RESOLVE_REF_READING, base, &flag))
return -1;
/*
@@ -2017,15 +2016,15 @@ static struct ref_iterator *files_ref_iterator_begin(
* on success. On error, write an error message to err, set errno, and
* return a negative value.
*/
-static int verify_lock(struct ref_lock *lock,
+static int verify_lock(struct ref_store *ref_store, struct ref_lock *lock,
const unsigned char *old_sha1, int mustexist,
struct strbuf *err)
{
assert(err);
- if (read_ref_full(lock->ref_name,
- mustexist ? RESOLVE_REF_READING : 0,
- lock->old_oid.hash, NULL)) {
+ if (refs_read_ref_full(ref_store, lock->ref_name,
+ mustexist ? RESOLVE_REF_READING : 0,
+ lock->old_oid.hash, NULL)) {
if (old_sha1) {
int save_errno = errno;
strbuf_addf(err, "can't verify ref '%s'", lock->ref_name);
@@ -2094,8 +2093,9 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
resolve_flags |= RESOLVE_REF_ALLOW_BAD_NAME;
files_refname_path(refs, &ref_file, refname);
- resolved = !!resolve_ref_unsafe(refname, resolve_flags,
- lock->old_oid.hash, type);
+ resolved = !!refs_resolve_ref_unsafe(&refs->base,
+ refname, resolve_flags,
+ lock->old_oid.hash, type);
if (!resolved && errno == EISDIR) {
/*
* we are trying to lock foo but we used to
@@ -2112,8 +2112,9 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
refname);
goto error_return;
}
- resolved = !!resolve_ref_unsafe(refname, resolve_flags,
- lock->old_oid.hash, type);
+ resolved = !!refs_resolve_ref_unsafe(&refs->base,
+ refname, resolve_flags,
+ lock->old_oid.hash, type);
}
if (!resolved) {
last_errno = errno;
@@ -2151,7 +2152,7 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
goto error_return;
}
- if (verify_lock(lock, old_sha1, mustexist, err)) {
+ if (verify_lock(&refs->base, lock, old_sha1, mustexist, err)) {
last_errno = errno;
goto error_return;
}
@@ -2406,7 +2407,7 @@ static void try_remove_empty_parents(struct files_ref_store *refs,
}
/* make sure nobody touched the ref, and unlink */
-static void prune_ref(struct ref_to_prune *r)
+static void prune_ref(struct files_ref_store *refs, struct ref_to_prune *r)
{
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
@@ -2414,7 +2415,7 @@ static void prune_ref(struct ref_to_prune *r)
if (check_refname_format(r->name, 0))
return;
- transaction = ref_transaction_begin(&err);
+ transaction = ref_store_transaction_begin(&refs->base, &err);
if (!transaction ||
ref_transaction_delete(transaction, r->name, r->sha1,
REF_ISPRUNING | REF_NODEREF, NULL, &err) ||
@@ -2428,10 +2429,10 @@ static void prune_ref(struct ref_to_prune *r)
strbuf_release(&err);
}
-static void prune_refs(struct ref_to_prune *r)
+static void prune_refs(struct files_ref_store *refs, struct ref_to_prune *r)
{
while (r) {
- prune_ref(r);
+ prune_ref(refs, r);
r = r->next;
}
}
@@ -2455,7 +2456,7 @@ static int files_pack_refs(struct ref_store *ref_store, unsigned int flags)
if (commit_packed_refs(refs))
die_errno("unable to overwrite old ref-pack file");
- prune_refs(cbdata.ref_to_prune);
+ prune_refs(refs, cbdata.ref_to_prune);
return 0;
}
@@ -2547,7 +2548,7 @@ static int files_delete_refs(struct ref_store *ref_store,
for (i = 0; i < refnames->nr; i++) {
const char *refname = refnames->items[i].string;
- if (delete_ref(refname, NULL, flags))
+ if (refs_delete_ref(&refs->base, refname, NULL, flags))
result |= error(_("could not remove reference %s"), refname);
}
@@ -2665,8 +2666,9 @@ static int files_rename_ref(struct ref_store *ref_store,
if (log && S_ISLNK(loginfo.st_mode))
return error("reflog for %s is a symlink", oldrefname);
- if (!resolve_ref_unsafe(oldrefname, RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
- orig_sha1, &flag))
+ if (!refs_resolve_ref_unsafe(&refs->base, oldrefname,
+ RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
+ orig_sha1, &flag))
return error("refname %s not found", oldrefname);
if (flag & REF_ISSYMREF)
@@ -2684,7 +2686,7 @@ static int files_rename_ref(struct ref_store *ref_store,
return error("unable to move logfile logs/%s to logs/"TMP_RENAMED_LOG": %s",
oldrefname, strerror(errno));
- if (delete_ref(oldrefname, orig_sha1, REF_NODEREF)) {
+ if (refs_delete_ref(&refs->base, oldrefname, orig_sha1, REF_NODEREF)) {
error("unable to delete old %s", oldrefname);
goto rollback;
}
@@ -2696,9 +2698,10 @@ static int files_rename_ref(struct ref_store *ref_store,
* the safety anyway; we want to delete the reference whatever
* its current value.
*/
- if (!read_ref_full(newrefname, RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
- sha1, NULL) &&
- delete_ref(newrefname, NULL, REF_NODEREF)) {
+ if (!refs_read_ref_full(&refs->base, newrefname,
+ RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
+ sha1, NULL) &&
+ refs_delete_ref(&refs->base, newrefname, NULL, REF_NODEREF)) {
if (errno == EISDIR) {
struct strbuf path = STRBUF_INIT;
int result;
@@ -3054,8 +3057,9 @@ static int commit_ref_update(struct files_ref_store *refs,
int head_flag;
const char *head_ref;
- head_ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
- head_sha1, &head_flag);
+ head_ref = refs_resolve_ref_unsafe(&refs->base, "HEAD",
+ RESOLVE_REF_READING,
+ head_sha1, &head_flag);
if (head_ref && (head_flag & REF_ISSYMREF) &&
!strcmp(head_ref, lock->ref_name)) {
struct strbuf log_err = STRBUF_INIT;
@@ -3099,7 +3103,9 @@ static void update_symref_reflog(struct files_ref_store *refs,
{
struct strbuf err = STRBUF_INIT;
unsigned char new_sha1[20];
- if (logmsg && !read_ref(target, new_sha1) &&
+ if (logmsg &&
+ !refs_read_ref_full(&refs->base, target,
+ RESOLVE_REF_READING, new_sha1, NULL) &&
files_log_ref_write(refs, refname, lock->old_oid.hash,
new_sha1, logmsg, 0, &err)) {
error("%s", err.buf);
@@ -3403,6 +3409,7 @@ static int files_for_each_reflog_ent(struct ref_store *ref_store,
struct files_reflog_iterator {
struct ref_iterator base;
+ struct ref_store *ref_store;
struct dir_iterator *dir_iterator;
struct object_id oid;
};
@@ -3424,8 +3431,9 @@ static int files_reflog_iterator_advance(struct ref_iterator *ref_iterator)
if (ends_with(diter->basename, ".lock"))
continue;
- if (read_ref_full(diter->relative_path, 0,
- iter->oid.hash, &flags)) {
+ if (refs_read_ref_full(iter->ref_store,
+ diter->relative_path, 0,
+ iter->oid.hash, &flags)) {
error("bad ref for %s", diter->path.buf);
continue;
}
@@ -3479,6 +3487,7 @@ static struct ref_iterator *files_reflog_iterator_begin(struct ref_store *ref_st
base_ref_iterator_init(ref_iterator, &files_reflog_iterator_vtable);
files_reflog_path(refs, &sb, NULL);
iter->dir_iterator = dir_iterator_begin(sb.buf);
+ iter->ref_store = ref_store;
strbuf_release(&sb);
return ref_iterator;
}
@@ -3718,8 +3727,9 @@ static int lock_ref_for_update(struct files_ref_store *refs,
* the transaction, so we have to read it here
* to record and possibly check old_sha1:
*/
- if (read_ref_full(referent.buf, 0,
- lock->old_oid.hash, NULL)) {
+ if (refs_read_ref_full(&refs->base,
+ referent.buf, 0,
+ lock->old_oid.hash, NULL)) {
if (update->flags & REF_HAVE_OLD) {
strbuf_addf(err, "cannot lock ref '%s': "
"error reading reference",
@@ -3873,8 +3883,10 @@ static int files_transaction_commit(struct ref_store *ref_store,
* head_ref within the transaction, then split_head_update()
* arranges for the reflog of HEAD to be updated, too.
*/
- head_ref = resolve_refdup("HEAD", RESOLVE_REF_NO_RECURSE,
- head_oid.hash, &head_type);
+ head_ref = (char *)refs_resolve_ref_unsafe(ref_store, "HEAD",
+ RESOLVE_REF_NO_RECURSE,
+ head_oid.hash, &head_type);
+ head_ref = xstrdup_or_null(head_ref);
if (head_ref && !(head_type & REF_ISSYMREF)) {
free(head_ref);
@@ -4047,7 +4059,8 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
* so here we really only check that none of the references
* that we are creating already exists.
*/
- if (for_each_rawref(ref_present, &affected_refnames))
+ if (refs_for_each_rawref(&refs->base, ref_present,
+ &affected_refnames))
die("BUG: initial ref transaction called with existing refs");
for (i = 0; i < transaction->nr; i++) {
@@ -4166,7 +4179,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
strbuf_release(&err);
return -1;
}
- if (!reflog_exists(refname)) {
+ if (!refs_reflog_exists(ref_store, refname)) {
unlock_ref(lock);
return 0;
}
@@ -4197,7 +4210,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
}
(*prepare_fn)(refname, sha1, cb.policy_cb);
- for_each_reflog_ent(refname, expire_reflog_ent, &cb);
+ refs_for_each_reflog_ent(ref_store, refname, expire_reflog_ent, &cb);
(*cleanup_fn)(cb.policy_cb);
if (!(flags & EXPIRE_REFLOGS_DRY_RUN)) {
--
2.11.0.157.gd943d85