Replace all die("BUG: ...") calls by BUG() ones

In d8193743e08 (usage.c: add BUG() function, 2017-05-12), a new macro
was introduced to use for reporting bugs instead of die(). It was then
subsequently used to convert one single caller in 588a538ae55
(setup_git_env: convert die("BUG") to BUG(), 2017-05-12).

The cover letter of the patch series containing this patch
(cf 20170513032414.mfrwabt4hovujde2@sigill.intra.peff.net) is not
terribly clear why only one call site was converted, or what the plan
is for other, similar calls to die() to report bugs.

Let's just convert all remaining ones in one fell swoop.

This trick was performed by this invocation:

	sed -i 's/die("BUG: /BUG("/g' $(git grep -l 'die("BUG' \*.c)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

4 files changed, 22 insertions, 22 deletions

diff --git a/refs/files-backend.c b/refs/files-backend.c
index a92a2aa821..332da47edd 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -125,7 +125,7 @@ static void files_assert_main_repository(struct files_ref_store *refs,
 	if (refs->store_flags & REF_STORE_MAIN)
 		return;
 
-	die("BUG: operation %s only allowed for main ref store", caller);
+	BUG("operation %s only allowed for main ref store", caller);
 }
 
 /*
@@ -141,13 +141,13 @@ static struct files_ref_store *files_downcast(struct ref_store *ref_store,
 	struct files_ref_store *refs;
 
 	if (ref_store->be != &refs_be_files)
-		die("BUG: ref_store is type \"%s\" not \"files\" in %s",
+		BUG("ref_store is type \"%s\" not \"files\" in %s",
 		    ref_store->be->name, caller);
 
 	refs = (struct files_ref_store *)ref_store;
 
 	if ((refs->store_flags & required_flags) != required_flags)
-		die("BUG: operation %s requires abilities 0x%x, but only have 0x%x",
+		BUG("operation %s requires abilities 0x%x, but only have 0x%x",
 		    caller, required_flags, refs->store_flags);
 
 	return refs;
@@ -166,7 +166,7 @@ static void files_reflog_path(struct files_ref_store *refs,
 		strbuf_addf(sb, "%s/logs/%s", refs->gitcommondir, refname);
 		break;
 	default:
-		die("BUG: unknown ref type %d of ref %s",
+		BUG("unknown ref type %d of ref %s",
 		    ref_type(refname), refname);
 	}
 }
@@ -184,7 +184,7 @@ static void files_ref_path(struct files_ref_store *refs,
 		strbuf_addf(sb, "%s/%s", refs->gitcommondir, refname);
 		break;
 	default:
-		die("BUG: unknown ref type %d of ref %s",
+		BUG("unknown ref type %d of ref %s",
 		    ref_type(refname), refname);
 	}
 }
@@ -2010,7 +2010,7 @@ static int files_for_each_reflog_ent_reverse(struct ref_store *ref_store,
 
 	}
 	if (!ret && sb.len)
-		die("BUG: reverse reflog parser had leftover data");
+		BUG("reverse reflog parser had leftover data");
 
 	fclose(logfp);
 	strbuf_release(&sb);
@@ -2088,7 +2088,7 @@ static int files_reflog_iterator_advance(struct ref_iterator *ref_iterator)
 static int files_reflog_iterator_peel(struct ref_iterator *ref_iterator,
 				   struct object_id *peeled)
 {
-	die("BUG: ref_iterator_peel() called for reflog_iterator");
+	BUG("ref_iterator_peel() called for reflog_iterator");
 }
 
 static int files_reflog_iterator_abort(struct ref_iterator *ref_iterator)
@@ -2873,7 +2873,7 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
 	assert(err);
 
 	if (transaction->state != REF_TRANSACTION_OPEN)
-		die("BUG: commit called for transaction that is not open");
+		BUG("commit called for transaction that is not open");
 
 	/* Fail if a refname appears more than once in the transaction: */
 	for (i = 0; i < transaction->nr; i++)
@@ -2899,7 +2899,7 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
 	 */
 	if (refs_for_each_rawref(&refs->base, ref_present,
 				 &affected_refnames))
-		die("BUG: initial ref transaction called with existing refs");
+		BUG("initial ref transaction called with existing refs");
 
 	packed_transaction = ref_store_transaction_begin(refs->packed_ref_store, err);
 	if (!packed_transaction) {
@@ -2912,7 +2912,7 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
 
 		if ((update->flags & REF_HAVE_OLD) &&
 		    !is_null_oid(&update->old_oid))
-			die("BUG: initial ref transaction with old_sha1 set");
+			BUG("initial ref transaction with old_sha1 set");
 		if (refs_verify_refname_available(&refs->base, update->refname,
 						  &affected_refnames, NULL,
 						  err)) {
diff --git a/refs/iterator.c b/refs/iterator.c
index bd35da4e62..2ac91ac340 100644
--- a/refs/iterator.c
+++ b/refs/iterator.c
@@ -54,7 +54,7 @@ static int empty_ref_iterator_advance(struct ref_iterator *ref_iterator)
 static int empty_ref_iterator_peel(struct ref_iterator *ref_iterator,
 				   struct object_id *peeled)
 {
-	die("BUG: peel called for empty iterator");
+	BUG("peel called for empty iterator");
 }
 
 static int empty_ref_iterator_abort(struct ref_iterator *ref_iterator)
@@ -177,7 +177,7 @@ static int merge_ref_iterator_peel(struct ref_iterator *ref_iterator,
 		(struct merge_ref_iterator *)ref_iterator;
 
 	if (!iter->current) {
-		die("BUG: peel called before advance for merge iterator");
+		BUG("peel called before advance for merge iterator");
 	}
 	return ref_iterator_peel(*iter->current, peeled);
 }
@@ -338,7 +338,7 @@ static int prefix_ref_iterator_advance(struct ref_iterator *ref_iterator)
 			 * trimming, report it as a bug:
 			 */
 			if (strlen(iter->iter0->refname) <= iter->trim)
-				die("BUG: attempt to trim too many characters");
+				BUG("attempt to trim too many characters");
 			iter->base.refname = iter->iter0->refname + iter->trim;
 		} else {
 			iter->base.refname = iter->iter0->refname;
diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index 369c34f886..cec3fb9e00 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -221,13 +221,13 @@ static struct packed_ref_store *packed_downcast(struct ref_store *ref_store,
 	struct packed_ref_store *refs;
 
 	if (ref_store->be != &refs_be_packed)
-		die("BUG: ref_store is type \"%s\" not \"packed\" in %s",
+		BUG("ref_store is type \"%s\" not \"packed\" in %s",
 		    ref_store->be->name, caller);
 
 	refs = (struct packed_ref_store *)ref_store;
 
 	if ((refs->store_flags & required_flags) != required_flags)
-		die("BUG: unallowed operation (%s), requires %x, has %x\n",
+		BUG("unallowed operation (%s), requires %x, has %x\n",
 		    caller, required_flags, refs->store_flags);
 
 	return refs;
@@ -1036,7 +1036,7 @@ void packed_refs_unlock(struct ref_store *ref_store)
 			"packed_refs_unlock");
 
 	if (!is_lock_file_locked(&refs->lock))
-		die("BUG: packed_refs_unlock() called when not locked");
+		BUG("packed_refs_unlock() called when not locked");
 	rollback_lock_file(&refs->lock);
 }
 
@@ -1089,7 +1089,7 @@ static int write_with_updates(struct packed_ref_store *refs,
 	char *packed_refs_path;
 
 	if (!is_lock_file_locked(&refs->lock))
-		die("BUG: write_with_updates() called while unlocked");
+		BUG("write_with_updates() called while unlocked");
 
 	/*
 	 * If packed-refs is a symlink, we want to overwrite the
@@ -1563,21 +1563,21 @@ static int packed_create_symref(struct ref_store *ref_store,
 			       const char *refname, const char *target,
 			       const char *logmsg)
 {
-	die("BUG: packed reference store does not support symrefs");
+	BUG("packed reference store does not support symrefs");
 }
 
 static int packed_rename_ref(struct ref_store *ref_store,
 			    const char *oldrefname, const char *newrefname,
 			    const char *logmsg)
 {
-	die("BUG: packed reference store does not support renaming references");
+	BUG("packed reference store does not support renaming references");
 }
 
 static int packed_copy_ref(struct ref_store *ref_store,
 			   const char *oldrefname, const char *newrefname,
 			   const char *logmsg)
 {
-	die("BUG: packed reference store does not support copying references");
+	BUG("packed reference store does not support copying references");
 }
 
 static struct ref_iterator *packed_reflog_iterator_begin(struct ref_store *ref_store)
@@ -1610,7 +1610,7 @@ static int packed_create_reflog(struct ref_store *ref_store,
 			       const char *refname, int force_create,
 			       struct strbuf *err)
 {
-	die("BUG: packed reference store does not support reflogs");
+	BUG("packed reference store does not support reflogs");
 }
 
 static int packed_delete_reflog(struct ref_store *ref_store,
diff --git a/refs/ref-cache.c b/refs/ref-cache.c
index e90bd3e727..9b110c8494 100644
--- a/refs/ref-cache.c
+++ b/refs/ref-cache.c
@@ -23,7 +23,7 @@ struct ref_dir *get_ref_dir(struct ref_entry *entry)
 	dir = &entry->u.subdir;
 	if (entry->flag & REF_INCOMPLETE) {
 		if (!dir->cache->fill_ref_dir)
-			die("BUG: incomplete ref_store without fill_ref_dir function");
+			BUG("incomplete ref_store without fill_ref_dir function");
 
 		dir->cache->fill_ref_dir(dir->cache->ref_store, dir, entry->name);
 		entry->flag &= ~REF_INCOMPLETE;