[RFC PATCH 10/21] receive-pack: use bug() and BUG_if_bug()

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Amend code added in a6a84319686 (receive-pack.c: shorten the
execute_commands loop over all commands, 2015-01-07) and amended to
hard die in b6a4788586d (receive-pack.c: die instead of error in case
of possible future bug, 2015-01-07) to the new bug() function instead.

Let's also rename the warn_if_*() function that code is in to
BUG_if_*(), its name became outdated in b6a4788586d.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/receive-pack.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 49b846d9605..42fabafa726 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1824,21 +1824,17 @@ static int should_process_cmd(struct command *cmd)
 	return !cmd->error_string && !cmd->skip_update;
 }
 
-static void warn_if_skipped_connectivity_check(struct command *commands,
+static void BUG_if_skipped_connectivity_check(struct command *commands,
 					       struct shallow_info *si)
 {
 	struct command *cmd;
-	int checked_connectivity = 1;
 
 	for (cmd = commands; cmd; cmd = cmd->next) {
-		if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) {
-			error("BUG: connectivity check has not been run on ref %s",
-			      cmd->ref_name);
-			checked_connectivity = 0;
-		}
+		if (!should_process_cmd(cmd) && si->shallow_ref[cmd->index])
+			bug("connectivity check has not been run on ref %s",
+			    cmd->ref_name);
 	}
-	if (!checked_connectivity)
-		BUG("connectivity check skipped???");
+	BUG_if_bug();
 }
 
 static void execute_commands_non_atomic(struct command *commands,
@@ -2010,7 +2006,7 @@ static void execute_commands(struct command *commands,
 		execute_commands_non_atomic(commands, si);
 
 	if (shallow_update)
-		warn_if_skipped_connectivity_check(commands, si);
+		BUG_if_skipped_connectivity_check(commands, si);
 }
 
 static struct command **queue_command(struct command **tail,
-- 
2.34.0.rc2.809.g11e21d44b24