[PATCH v3 24/30] packed_refs_lock(): report errors via a `struct strbuf *err`
- From
Michael Haggerty <mhagger@alum.mit.edu>
- Date
- Jul 1, 2017, 18:31 UTC
- Message-ID
- <f76dd91617965cdd2d72821de60bfcd1a70ab9bb.1498933362.git.mhagger@alum.mit.edu>
- In-Reply-To
- <cover.1498933362.git.mhagger@alum.mit.edu>
That way the callers don't have to come up with error messages themselves.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> --- refs/files-backend.c | 6 ++---- refs/packed-backend.c | 17 +++++++++++------ refs/packed-backend.h | 6 +++--- 3 files changed, 16 insertions(+), 13 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c index 88de907148..8ea4e9ab05 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -1096,7 +1096,7 @@ static int files_pack_refs(struct ref_store *ref_store, unsigned int flags) struct ref_to_prune *refs_to_prune = NULL; struct strbuf err = STRBUF_INIT; - packed_refs_lock(refs->packed_ref_store, LOCK_DIE_ON_ERROR); + packed_refs_lock(refs->packed_ref_store, LOCK_DIE_ON_ERROR, &err); iter = cache_ref_iterator_begin(get_loose_ref_cache(refs), NULL, 0); while ((ok = ref_iterator_advance(iter)) == ITER_OK) { @@ -2679,9 +2679,7 @@ static int files_initial_transaction_commit(struct ref_store *ref_store, } } - if (packed_refs_lock(refs->packed_ref_store, 0)) { - strbuf_addf(err, "unable to lock packed-refs file: %s", - strerror(errno)); + if (packed_refs_lock(refs->packed_ref_store, 0, err)) { ret = TRANSACTION_GENERIC_ERROR; goto cleanup; } diff --git a/refs/packed-backend.c b/refs/packed-backend.c index cd214e07a1..78e877a9e3 100644 --- a/refs/packed-backend.c +++ b/refs/packed-backend.c @@ -515,7 +515,7 @@ static int write_packed_entry(FILE *fh, const char *refname, return 0; } -int packed_refs_lock(struct ref_store *ref_store, int flags) +int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err) { struct packed_ref_store *refs = packed_downcast(ref_store, REF_STORE_WRITE | REF_STORE_MAIN, @@ -537,9 +537,15 @@ int packed_refs_lock(struct ref_store *ref_store, int flags) if (hold_lock_file_for_update_timeout( &refs->lock, refs->path, - flags, timeout_value) < 0 || - close_lock_file(&refs->lock)) + flags, timeout_value) < 0) { + unable_to_lock_message(refs->path, errno, err); + return -1; + } + + if (close_lock_file(&refs->lock)) { + strbuf_addf(err, "unable to close %s: %s", refs->path, strerror(errno)); return -1; + } /* * Now that we hold the `packed-refs` lock, make sure that our @@ -698,10 +704,9 @@ int repack_without_refs(struct ref_store *ref_store, if (!needs_repacking) return 0; /* no refname exists in packed refs */ - if (packed_refs_lock(&refs->base, 0)) { - unable_to_lock_message(refs->path, errno, err); + if (packed_refs_lock(&refs->base, 0, err)) return -1; - } + packed = get_packed_refs(refs); /* Remove refnames from the cache */ diff --git a/refs/packed-backend.h b/refs/packed-backend.h index dbc00d3396..210e3f35ce 100644 --- a/refs/packed-backend.h +++ b/refs/packed-backend.h @@ -6,10 +6,10 @@ struct ref_store *packed_ref_store_create(const char *path, /* * Lock the packed-refs file for writing. Flags is passed to - * hold_lock_file_for_update(). Return 0 on success. On errors, set - * errno appropriately and return a nonzero value. + * hold_lock_file_for_update(). Return 0 on success. On errors, write + * an error message to `err` and return a nonzero value. */ -int packed_refs_lock(struct ref_store *ref_store, int flags); +int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err); void add_packed_ref(struct ref_store *ref_store, const char *refname, const struct object_id *oid);
-- 2.11.0