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706 lines
25 KiB
C
706 lines
25 KiB
C
#ifndef REFS_REFS_INTERNAL_H
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#define REFS_REFS_INTERNAL_H
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#include "cache.h"
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#include "refs.h"
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#include "iterator.h"
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struct ref_transaction;
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/*
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* Data structures and functions for the internal use of the refs
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* module. Code outside of the refs module should use only the public
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* functions defined in "refs.h", and should *not* include this file.
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*/
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/*
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* The following flags can appear in `ref_update::flags`. Their
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* numerical values must not conflict with those of REF_NO_DEREF and
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* REF_FORCE_CREATE_REFLOG, which are also stored in
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* `ref_update::flags`.
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*/
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/*
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* The reference should be updated to new_oid.
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*/
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#define REF_HAVE_NEW (1 << 2)
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/*
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* The current reference's value should be checked to make sure that
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* it agrees with old_oid.
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*/
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#define REF_HAVE_OLD (1 << 3)
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/*
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* Used as a flag in ref_update::flags when we want to log a ref
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* update but not actually perform it. This is used when a symbolic
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* ref update is split up.
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*/
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#define REF_LOG_ONLY (1 << 7)
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/*
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* Return the length of time to retry acquiring a loose reference lock
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* before giving up, in milliseconds:
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*/
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long get_files_ref_lock_timeout_ms(void);
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/*
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* Return true iff refname is minimally safe. "Safe" here means that
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* deleting a loose reference by this name will not do any damage, for
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* example by causing a file that is not a reference to be deleted.
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* This function does not check that the reference name is legal; for
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* that, use check_refname_format().
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*
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* A refname that starts with "refs/" is considered safe iff it
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* doesn't contain any "." or ".." components or consecutive '/'
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* characters, end with '/', or (on Windows) contain any '\'
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* characters. Names that do not start with "refs/" are considered
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* safe iff they consist entirely of upper case characters and '_'
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* (like "HEAD" and "MERGE_HEAD" but not "config" or "FOO/BAR").
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*/
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int refname_is_safe(const char *refname);
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/*
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* Helper function: return true if refname, which has the specified
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* oid and flags, can be resolved to an object in the database. If the
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* referred-to object does not exist, emit a warning and return false.
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*/
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int ref_resolves_to_object(const char *refname,
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const struct object_id *oid,
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unsigned int flags);
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enum peel_status {
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/* object was peeled successfully: */
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PEEL_PEELED = 0,
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/*
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* object cannot be peeled because the named object (or an
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* object referred to by a tag in the peel chain), does not
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* exist.
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*/
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PEEL_INVALID = -1,
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/* object cannot be peeled because it is not a tag: */
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PEEL_NON_TAG = -2,
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/* ref_entry contains no peeled value because it is a symref: */
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PEEL_IS_SYMREF = -3,
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/*
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* ref_entry cannot be peeled because it is broken (i.e., the
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* symbolic reference cannot even be resolved to an object
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* name):
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*/
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PEEL_BROKEN = -4
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};
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/*
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* Peel the named object; i.e., if the object is a tag, resolve the
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* tag recursively until a non-tag is found. If successful, store the
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* result to oid and return PEEL_PEELED. If the object is not a tag
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* or is not valid, return PEEL_NON_TAG or PEEL_INVALID, respectively,
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* and leave oid unchanged.
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*/
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enum peel_status peel_object(const struct object_id *name, struct object_id *oid);
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/**
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* Information needed for a single ref update. Set new_oid to the new
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* value or to null_oid to delete the ref. To check the old value
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* while the ref is locked, set (flags & REF_HAVE_OLD) and set old_oid
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* to the old value, or to null_oid to ensure the ref does not exist
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* before update.
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*/
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struct ref_update {
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/*
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* If (flags & REF_HAVE_NEW), set the reference to this value
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* (or delete it, if `new_oid` is `null_oid`).
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*/
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struct object_id new_oid;
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/*
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* If (flags & REF_HAVE_OLD), check that the reference
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* previously had this value (or didn't previously exist, if
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* `old_oid` is `null_oid`).
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*/
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struct object_id old_oid;
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/*
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* One or more of REF_NO_DEREF, REF_FORCE_CREATE_REFLOG,
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* REF_HAVE_NEW, REF_HAVE_OLD, or backend-specific flags.
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*/
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unsigned int flags;
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void *backend_data;
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unsigned int type;
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char *msg;
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/*
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* If this ref_update was split off of a symref update via
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* split_symref_update(), then this member points at that
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* update. This is used for two purposes:
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* 1. When reporting errors, we report the refname under which
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* the update was originally requested.
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* 2. When we read the old value of this reference, we
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* propagate it back to its parent update for recording in
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* the latter's reflog.
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*/
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struct ref_update *parent_update;
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const char refname[FLEX_ARRAY];
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};
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int refs_read_raw_ref(struct ref_store *ref_store,
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const char *refname, struct object_id *oid,
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struct strbuf *referent, unsigned int *type);
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/*
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* Write an error to `err` and return a nonzero value iff the same
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* refname appears multiple times in `refnames`. `refnames` must be
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* sorted on entry to this function.
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*/
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int ref_update_reject_duplicates(struct string_list *refnames,
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struct strbuf *err);
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/*
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* Add a ref_update with the specified properties to transaction, and
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* return a pointer to the new object. This function does not verify
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* that refname is well-formed. new_oid and old_oid are only
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* dereferenced if the REF_HAVE_NEW and REF_HAVE_OLD bits,
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* respectively, are set in flags.
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*/
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struct ref_update *ref_transaction_add_update(
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struct ref_transaction *transaction,
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const char *refname, unsigned int flags,
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const struct object_id *new_oid,
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const struct object_id *old_oid,
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const char *msg);
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/*
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* Transaction states.
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*
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* OPEN: The transaction is initialized and new updates can still be
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* added to it. An OPEN transaction can be prepared,
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* committed, freed, or aborted (freeing and aborting an open
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* transaction are equivalent).
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*
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* PREPARED: ref_transaction_prepare(), which locks all of the
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* references involved in the update and checks that the
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* update has no errors, has been called successfully for the
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* transaction. A PREPARED transaction can be committed or
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* aborted.
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*
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* CLOSED: The transaction is no longer active. A transaction becomes
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* CLOSED if there is a failure while building the transaction
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* or if a transaction is committed or aborted. A CLOSED
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* transaction can only be freed.
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*/
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enum ref_transaction_state {
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REF_TRANSACTION_OPEN = 0,
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REF_TRANSACTION_PREPARED = 1,
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REF_TRANSACTION_CLOSED = 2
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};
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/*
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* Data structure for holding a reference transaction, which can
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* consist of checks and updates to multiple references, carried out
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* as atomically as possible. This structure is opaque to callers.
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*/
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struct ref_transaction {
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struct ref_store *ref_store;
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struct ref_update **updates;
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size_t alloc;
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size_t nr;
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enum ref_transaction_state state;
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void *backend_data;
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};
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/*
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* Check for entries in extras that are within the specified
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* directory, where dirname is a reference directory name including
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* the trailing slash (e.g., "refs/heads/foo/"). Ignore any
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* conflicting references that are found in skip. If there is a
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* conflicting reference, return its name.
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*
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* extras and skip must be sorted lists of reference names. Either one
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* can be NULL, signifying the empty list.
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*/
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const char *find_descendant_ref(const char *dirname,
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const struct string_list *extras,
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const struct string_list *skip);
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/*
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* Check whether an attempt to rename old_refname to new_refname would
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* cause a D/F conflict with any existing reference (other than
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* possibly old_refname). If there would be a conflict, emit an error
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* message and return false; otherwise, return true.
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*
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* Note that this function is not safe against all races with other
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* processes (though rename_ref() catches some races that might get by
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* this check).
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*/
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int refs_rename_ref_available(struct ref_store *refs,
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const char *old_refname,
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const char *new_refname);
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/* We allow "recursive" symbolic refs. Only within reason, though */
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#define SYMREF_MAXDEPTH 5
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/* Include broken references in a do_for_each_ref*() iteration: */
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#define DO_FOR_EACH_INCLUDE_BROKEN 0x01
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/*
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* Reference iterators
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*
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* A reference iterator encapsulates the state of an in-progress
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* iteration over references. Create an instance of `struct
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* ref_iterator` via one of the functions in this module.
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*
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* A freshly-created ref_iterator doesn't yet point at a reference. To
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* advance the iterator, call ref_iterator_advance(). If successful,
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* this sets the iterator's refname, oid, and flags fields to describe
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* the next reference and returns ITER_OK. The data pointed at by
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* refname and oid belong to the iterator; if you want to retain them
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* after calling ref_iterator_advance() again or calling
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* ref_iterator_abort(), you must make a copy. When the iteration has
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* been exhausted, ref_iterator_advance() releases any resources
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* associated with the iteration, frees the ref_iterator object, and
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* returns ITER_DONE. If you want to abort the iteration early, call
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* ref_iterator_abort(), which also frees the ref_iterator object and
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* any associated resources. If there was an internal error advancing
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* to the next entry, ref_iterator_advance() aborts the iteration,
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* frees the ref_iterator, and returns ITER_ERROR.
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*
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* The reference currently being looked at can be peeled by calling
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* ref_iterator_peel(). This function is often faster than peel_ref(),
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* so it should be preferred when iterating over references.
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*
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* Putting it all together, a typical iteration looks like this:
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*
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* int ok;
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* struct ref_iterator *iter = ...;
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*
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* while ((ok = ref_iterator_advance(iter)) == ITER_OK) {
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* if (want_to_stop_iteration()) {
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* ok = ref_iterator_abort(iter);
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* break;
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* }
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*
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* // Access information about the current reference:
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* if (!(iter->flags & REF_ISSYMREF))
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* printf("%s is %s\n", iter->refname, oid_to_hex(iter->oid));
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*
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* // If you need to peel the reference:
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* ref_iterator_peel(iter, &oid);
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* }
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*
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* if (ok != ITER_DONE)
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* handle_error();
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*/
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struct ref_iterator {
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struct ref_iterator_vtable *vtable;
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/*
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* Does this `ref_iterator` iterate over references in order
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* by refname?
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*/
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unsigned int ordered : 1;
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const char *refname;
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const struct object_id *oid;
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unsigned int flags;
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};
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/*
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* Advance the iterator to the first or next item and return ITER_OK.
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* If the iteration is exhausted, free the resources associated with
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* the ref_iterator and return ITER_DONE. On errors, free the iterator
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* resources and return ITER_ERROR. It is a bug to use ref_iterator or
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* call this function again after it has returned ITER_DONE or
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* ITER_ERROR.
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*/
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int ref_iterator_advance(struct ref_iterator *ref_iterator);
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/*
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* If possible, peel the reference currently being viewed by the
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* iterator. Return 0 on success.
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*/
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int ref_iterator_peel(struct ref_iterator *ref_iterator,
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struct object_id *peeled);
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/*
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* End the iteration before it has been exhausted, freeing the
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* reference iterator and any associated resources and returning
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* ITER_DONE. If the abort itself failed, return ITER_ERROR.
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*/
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int ref_iterator_abort(struct ref_iterator *ref_iterator);
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/*
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* An iterator over nothing (its first ref_iterator_advance() call
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* returns ITER_DONE).
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*/
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struct ref_iterator *empty_ref_iterator_begin(void);
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/*
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* Return true iff ref_iterator is an empty_ref_iterator.
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*/
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int is_empty_ref_iterator(struct ref_iterator *ref_iterator);
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/*
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* Return an iterator that goes over each reference in `refs` for
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* which the refname begins with prefix. If trim is non-zero, then
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* trim that many characters off the beginning of each refname.
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* The output is ordered by refname. The following flags are supported:
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*
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* DO_FOR_EACH_INCLUDE_BROKEN: include broken references in
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* the iteration.
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*
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* DO_FOR_EACH_PER_WORKTREE_ONLY: only produce REF_TYPE_PER_WORKTREE refs.
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*/
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struct ref_iterator *refs_ref_iterator_begin(
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struct ref_store *refs,
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const char *prefix, int trim, int flags);
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/*
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* A callback function used to instruct merge_ref_iterator how to
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* interleave the entries from iter0 and iter1. The function should
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* return one of the constants defined in enum iterator_selection. It
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* must not advance either of the iterators itself.
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*
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* The function must be prepared to handle the case that iter0 and/or
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* iter1 is NULL, which indicates that the corresponding sub-iterator
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* has been exhausted. Its return value must be consistent with the
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* current states of the iterators; e.g., it must not return
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* ITER_SKIP_1 if iter1 has already been exhausted.
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*/
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typedef enum iterator_selection ref_iterator_select_fn(
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struct ref_iterator *iter0, struct ref_iterator *iter1,
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void *cb_data);
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/*
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* Iterate over the entries from iter0 and iter1, with the values
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* interleaved as directed by the select function. The iterator takes
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* ownership of iter0 and iter1 and frees them when the iteration is
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* over. A derived class should set `ordered` to 1 or 0 based on
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* whether it generates its output in order by reference name.
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*/
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struct ref_iterator *merge_ref_iterator_begin(
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int ordered,
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struct ref_iterator *iter0, struct ref_iterator *iter1,
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ref_iterator_select_fn *select, void *cb_data);
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/*
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* An iterator consisting of the union of the entries from front and
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* back. If there are entries common to the two sub-iterators, use the
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* one from front. Each iterator must iterate over its entries in
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* strcmp() order by refname for this to work.
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*
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* The new iterator takes ownership of its arguments and frees them
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* when the iteration is over. As a convenience to callers, if front
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* or back is an empty_ref_iterator, then abort that one immediately
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* and return the other iterator directly, without wrapping it.
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*/
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struct ref_iterator *overlay_ref_iterator_begin(
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struct ref_iterator *front, struct ref_iterator *back);
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/*
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* Wrap iter0, only letting through the references whose names start
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* with prefix. If trim is set, set iter->refname to the name of the
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* reference with that many characters trimmed off the front;
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* otherwise set it to the full refname. The new iterator takes over
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* ownership of iter0 and frees it when iteration is over. It makes
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* its own copy of prefix.
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*
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* As an convenience to callers, if prefix is the empty string and
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* trim is zero, this function returns iter0 directly, without
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* wrapping it.
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*
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* The resulting ref_iterator is ordered if iter0 is.
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*/
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struct ref_iterator *prefix_ref_iterator_begin(struct ref_iterator *iter0,
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const char *prefix,
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int trim);
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/* Internal implementation of reference iteration: */
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/*
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* Base class constructor for ref_iterators. Initialize the
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* ref_iterator part of iter, setting its vtable pointer as specified.
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* `ordered` should be set to 1 if the iterator will iterate over
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* references in order by refname; otherwise it should be set to 0.
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* This is meant to be called only by the initializers of derived
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* classes.
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*/
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void base_ref_iterator_init(struct ref_iterator *iter,
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struct ref_iterator_vtable *vtable,
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int ordered);
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/*
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* Base class destructor for ref_iterators. Destroy the ref_iterator
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* part of iter and shallow-free the object. This is meant to be
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* called only by the destructors of derived classes.
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*/
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void base_ref_iterator_free(struct ref_iterator *iter);
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/* Virtual function declarations for ref_iterators: */
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/*
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* backend-specific implementation of ref_iterator_advance. For symrefs, the
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* function should set REF_ISSYMREF, and it should also dereference the symref
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* to provide the OID referent. If DO_FOR_EACH_INCLUDE_BROKEN is set, symrefs
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* with non-existent referents and refs pointing to non-existent object names
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* should also be returned. If DO_FOR_EACH_PER_WORKTREE_ONLY, only
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* REF_TYPE_PER_WORKTREE refs should be returned.
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*/
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typedef int ref_iterator_advance_fn(struct ref_iterator *ref_iterator);
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typedef int ref_iterator_peel_fn(struct ref_iterator *ref_iterator,
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struct object_id *peeled);
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/*
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* Implementations of this function should free any resources specific
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* to the derived class, then call base_ref_iterator_free() to clean
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* up and free the ref_iterator object.
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*/
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typedef int ref_iterator_abort_fn(struct ref_iterator *ref_iterator);
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struct ref_iterator_vtable {
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ref_iterator_advance_fn *advance;
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ref_iterator_peel_fn *peel;
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ref_iterator_abort_fn *abort;
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};
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/*
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* current_ref_iter is a performance hack: when iterating over
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* references using the for_each_ref*() functions, current_ref_iter is
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* set to the reference iterator before calling the callback function.
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* If the callback function calls peel_ref(), then peel_ref() first
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* checks whether the reference to be peeled is the one referred to by
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* the iterator (it usually is) and if so, asks the iterator for the
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* peeled version of the reference if it is available. This avoids a
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* refname lookup in a common case. current_ref_iter is set to NULL
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* when the iteration is over.
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*/
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extern struct ref_iterator *current_ref_iter;
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/*
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* The common backend for the for_each_*ref* functions. Call fn for
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* each reference in iter. If the iterator itself ever returns
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* ITER_ERROR, return -1. If fn ever returns a non-zero value, stop
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* the iteration and return that value. Otherwise, return 0. In any
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* case, free the iterator when done. This function is basically an
|
|
* adapter between the callback style of reference iteration and the
|
|
* iterator style.
|
|
*/
|
|
int do_for_each_repo_ref_iterator(struct repository *r,
|
|
struct ref_iterator *iter,
|
|
each_repo_ref_fn fn, void *cb_data);
|
|
|
|
/*
|
|
* Only include per-worktree refs in a do_for_each_ref*() iteration.
|
|
* Normally this will be used with a files ref_store, since that's
|
|
* where all reference backends will presumably store their
|
|
* per-worktree refs.
|
|
*/
|
|
#define DO_FOR_EACH_PER_WORKTREE_ONLY 0x02
|
|
|
|
struct ref_store;
|
|
|
|
/* refs backends */
|
|
|
|
/* ref_store_init flags */
|
|
#define REF_STORE_READ (1 << 0)
|
|
#define REF_STORE_WRITE (1 << 1) /* can perform update operations */
|
|
#define REF_STORE_ODB (1 << 2) /* has access to object database */
|
|
#define REF_STORE_MAIN (1 << 3)
|
|
#define REF_STORE_ALL_CAPS (REF_STORE_READ | \
|
|
REF_STORE_WRITE | \
|
|
REF_STORE_ODB | \
|
|
REF_STORE_MAIN)
|
|
|
|
/*
|
|
* Initialize the ref_store for the specified gitdir. These functions
|
|
* should call base_ref_store_init() to initialize the shared part of
|
|
* the ref_store and to record the ref_store for later lookup.
|
|
*/
|
|
typedef struct ref_store *ref_store_init_fn(const char *gitdir,
|
|
unsigned int flags);
|
|
|
|
typedef int ref_init_db_fn(struct ref_store *refs, struct strbuf *err);
|
|
|
|
typedef int ref_transaction_prepare_fn(struct ref_store *refs,
|
|
struct ref_transaction *transaction,
|
|
struct strbuf *err);
|
|
|
|
typedef int ref_transaction_finish_fn(struct ref_store *refs,
|
|
struct ref_transaction *transaction,
|
|
struct strbuf *err);
|
|
|
|
typedef int ref_transaction_abort_fn(struct ref_store *refs,
|
|
struct ref_transaction *transaction,
|
|
struct strbuf *err);
|
|
|
|
typedef int ref_transaction_commit_fn(struct ref_store *refs,
|
|
struct ref_transaction *transaction,
|
|
struct strbuf *err);
|
|
|
|
typedef int pack_refs_fn(struct ref_store *ref_store, unsigned int flags);
|
|
typedef int create_symref_fn(struct ref_store *ref_store,
|
|
const char *ref_target,
|
|
const char *refs_heads_master,
|
|
const char *logmsg);
|
|
typedef int delete_refs_fn(struct ref_store *ref_store, const char *msg,
|
|
struct string_list *refnames, unsigned int flags);
|
|
typedef int rename_ref_fn(struct ref_store *ref_store,
|
|
const char *oldref, const char *newref,
|
|
const char *logmsg);
|
|
typedef int copy_ref_fn(struct ref_store *ref_store,
|
|
const char *oldref, const char *newref,
|
|
const char *logmsg);
|
|
|
|
/*
|
|
* Iterate over the references in `ref_store` whose names start with
|
|
* `prefix`. `prefix` is matched as a literal string, without regard
|
|
* for path separators. If prefix is NULL or the empty string, iterate
|
|
* over all references in `ref_store`. The output is ordered by
|
|
* refname.
|
|
*/
|
|
typedef struct ref_iterator *ref_iterator_begin_fn(
|
|
struct ref_store *ref_store,
|
|
const char *prefix, unsigned int flags);
|
|
|
|
/* reflog functions */
|
|
|
|
/*
|
|
* Iterate over the references in the specified ref_store that have a
|
|
* reflog. The refs are iterated over in arbitrary order.
|
|
*/
|
|
typedef struct ref_iterator *reflog_iterator_begin_fn(
|
|
struct ref_store *ref_store);
|
|
|
|
typedef int for_each_reflog_ent_fn(struct ref_store *ref_store,
|
|
const char *refname,
|
|
each_reflog_ent_fn fn,
|
|
void *cb_data);
|
|
typedef int for_each_reflog_ent_reverse_fn(struct ref_store *ref_store,
|
|
const char *refname,
|
|
each_reflog_ent_fn fn,
|
|
void *cb_data);
|
|
typedef int reflog_exists_fn(struct ref_store *ref_store, const char *refname);
|
|
typedef int create_reflog_fn(struct ref_store *ref_store, const char *refname,
|
|
int force_create, struct strbuf *err);
|
|
typedef int delete_reflog_fn(struct ref_store *ref_store, const char *refname);
|
|
typedef int reflog_expire_fn(struct ref_store *ref_store,
|
|
const char *refname, const struct object_id *oid,
|
|
unsigned int flags,
|
|
reflog_expiry_prepare_fn prepare_fn,
|
|
reflog_expiry_should_prune_fn should_prune_fn,
|
|
reflog_expiry_cleanup_fn cleanup_fn,
|
|
void *policy_cb_data);
|
|
|
|
/*
|
|
* Read a reference from the specified reference store, non-recursively.
|
|
* Set type to describe the reference, and:
|
|
*
|
|
* - If refname is the name of a normal reference, fill in oid
|
|
* (leaving referent unchanged).
|
|
*
|
|
* - If refname is the name of a symbolic reference, write the full
|
|
* name of the reference to which it refers (e.g.
|
|
* "refs/heads/master") to referent and set the REF_ISSYMREF bit in
|
|
* type (leaving oid unchanged). The caller is responsible for
|
|
* validating that referent is a valid reference name.
|
|
*
|
|
* WARNING: refname might be used as part of a filename, so it is
|
|
* important from a security standpoint that it be safe in the sense
|
|
* of refname_is_safe(). Moreover, for symrefs this function sets
|
|
* referent to whatever the repository says, which might not be a
|
|
* properly-formatted or even safe reference name. NEITHER INPUT NOR
|
|
* OUTPUT REFERENCE NAMES ARE VALIDATED WITHIN THIS FUNCTION.
|
|
*
|
|
* Return 0 on success. If the ref doesn't exist, set errno to ENOENT
|
|
* and return -1. If the ref exists but is neither a symbolic ref nor
|
|
* an object ID, it is broken; set REF_ISBROKEN in type, set errno to
|
|
* EINVAL, and return -1. If there is another error reading the ref,
|
|
* set errno appropriately and return -1.
|
|
*
|
|
* Backend-specific flags might be set in type as well, regardless of
|
|
* outcome.
|
|
*
|
|
* It is OK for refname to point into referent. If so:
|
|
*
|
|
* - if the function succeeds with REF_ISSYMREF, referent will be
|
|
* overwritten and the memory formerly pointed to by it might be
|
|
* changed or even freed.
|
|
*
|
|
* - in all other cases, referent will be untouched, and therefore
|
|
* refname will still be valid and unchanged.
|
|
*/
|
|
typedef int read_raw_ref_fn(struct ref_store *ref_store,
|
|
const char *refname, struct object_id *oid,
|
|
struct strbuf *referent, unsigned int *type);
|
|
|
|
struct ref_storage_be {
|
|
struct ref_storage_be *next;
|
|
const char *name;
|
|
ref_store_init_fn *init;
|
|
ref_init_db_fn *init_db;
|
|
|
|
ref_transaction_prepare_fn *transaction_prepare;
|
|
ref_transaction_finish_fn *transaction_finish;
|
|
ref_transaction_abort_fn *transaction_abort;
|
|
ref_transaction_commit_fn *initial_transaction_commit;
|
|
|
|
pack_refs_fn *pack_refs;
|
|
create_symref_fn *create_symref;
|
|
delete_refs_fn *delete_refs;
|
|
rename_ref_fn *rename_ref;
|
|
copy_ref_fn *copy_ref;
|
|
|
|
ref_iterator_begin_fn *iterator_begin;
|
|
read_raw_ref_fn *read_raw_ref;
|
|
|
|
reflog_iterator_begin_fn *reflog_iterator_begin;
|
|
for_each_reflog_ent_fn *for_each_reflog_ent;
|
|
for_each_reflog_ent_reverse_fn *for_each_reflog_ent_reverse;
|
|
reflog_exists_fn *reflog_exists;
|
|
create_reflog_fn *create_reflog;
|
|
delete_reflog_fn *delete_reflog;
|
|
reflog_expire_fn *reflog_expire;
|
|
};
|
|
|
|
extern struct ref_storage_be refs_be_files;
|
|
extern struct ref_storage_be refs_be_packed;
|
|
|
|
/*
|
|
* A representation of the reference store for the main repository or
|
|
* a submodule. The ref_store instances for submodules are kept in a
|
|
* hash map; see get_submodule_ref_store() for more info.
|
|
*/
|
|
struct ref_store {
|
|
/* The backend describing this ref_store's storage scheme: */
|
|
const struct ref_storage_be *be;
|
|
|
|
/* The gitdir that this ref_store applies to: */
|
|
char *gitdir;
|
|
};
|
|
|
|
/*
|
|
* Parse contents of a loose ref file.
|
|
*/
|
|
int parse_loose_ref_contents(const char *buf, struct object_id *oid,
|
|
struct strbuf *referent, unsigned int *type);
|
|
|
|
/*
|
|
* Fill in the generic part of refs and add it to our collection of
|
|
* reference stores.
|
|
*/
|
|
void base_ref_store_init(struct ref_store *refs,
|
|
const struct ref_storage_be *be);
|
|
|
|
/*
|
|
* Support GIT_TRACE_REFS by optionally wrapping the given ref_store instance.
|
|
*/
|
|
struct ref_store *maybe_debug_wrap_ref_store(const char *gitdir, struct ref_store *store);
|
|
|
|
#endif /* REFS_REFS_INTERNAL_H */
|