[PATCH v2 01/12] delete_ref(): move declaration to refs.h
From: Michael Haggerty <hidden>
Date: 2016-06-15 23:05:17
Subsystem:
the rest · Maintainer:
Linus Torvalds
Also * Add a docstring * Rename the second parameter to "old_sha1", to be consistent with the convention used elsewhere in the refs module Signed-off-by: Michael Haggerty <redacted> --- cache.h | 2 -- refs.c | 5 +++-- refs.h | 10 ++++++++++ 3 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/cache.h b/cache.h
index 571c98f..be92121 100644
--- a/cache.h
+++ b/cache.h@@ -585,8 +585,6 @@ extern void update_index_if_able(struct index_state *, struct lock_file *); extern int hold_locked_index(struct lock_file *, int); extern void set_alternate_index_output(const char *); -extern int delete_ref(const char *, const unsigned char *sha1, unsigned int flags); - /* Environment bits from configuration mechanism */ extern int trust_executable_bit; extern int trust_ctime;
diff --git a/refs.c b/refs.c
index a742d79..b575bb8 100644
--- a/refs.c
+++ b/refs.c@@ -2789,7 +2789,8 @@ static int delete_ref_loose(struct ref_lock *lock, int flag, struct strbuf *err) return 0; } -int delete_ref(const char *refname, const unsigned char *sha1, unsigned int flags) +int delete_ref(const char *refname, const unsigned char *old_sha1, + unsigned int flags) { struct ref_transaction *transaction; struct strbuf err = STRBUF_INIT;
@@ -2797,7 +2798,7 @@ int delete_ref(const char *refname, const unsigned char *sha1, unsigned int flag transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_delete(transaction, refname, - (sha1 && !is_null_sha1(sha1)) ? sha1 : NULL, + (old_sha1 && !is_null_sha1(old_sha1)) ? old_sha1 : NULL, flags, NULL, &err) || ref_transaction_commit(transaction, &err)) { error("%s", err.buf);
diff --git a/refs.h b/refs.h
index 8c3d433..68b5e81 100644
--- a/refs.h
+++ b/refs.h@@ -202,6 +202,16 @@ extern int read_ref_at(const char *refname, unsigned int flags, /** Check if a particular reflog exists */ extern int reflog_exists(const char *refname); +/* + * Delete the specified reference. If old_sha1 is non-NULL and not + * NULL_SHA1, then verify that the current value of the reference is + * old_sha1 before deleting it. If old_sha1 is NULL or NULL_SHA1, + * delete the reference if it exists, regardless of its old value. + * flags is passed through to ref_transaction_delete(). + */ +extern int delete_ref(const char *refname, const unsigned char *old_sha1, + unsigned int flags); + /** Delete a reflog */ extern int delete_reflog(const char *refname);
--
2.1.4