[PATCH 2/3] hook.c: add a hook_exists() wrapper and use it in bugreport.c

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

From: Emily Shaffer <emilyshaffer@google.com>

Add a boolean version of the find_hook() function for those callers
who are only interested in checking whether the hook exists, not what
the path to it is.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/bugreport.c | 2 +-
 hook.c              | 5 +++++
 hook.h              | 5 +++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/builtin/bugreport.c b/builtin/bugreport.c
index 596f079a7f..941c8d5e27 100644
--- a/builtin/bugreport.c
+++ b/builtin/bugreport.c
@@ -82,7 +82,7 @@ static void get_populated_hooks(struct strbuf *hook_info, int nongit)
 	}
 
 	for (i = 0; i < ARRAY_SIZE(hook); i++)
-		if (find_hook(hook[i]))
+		if (hook_exists(hook[i]))
 			strbuf_addf(hook_info, "%s\n", hook[i]);
 }
 
diff --git a/hook.c b/hook.c
index c4dbef1d0e..97cd799a32 100644
--- a/hook.c
+++ b/hook.c
@@ -35,3 +35,8 @@ const char *find_hook(const char *name)
 	}
 	return path.buf;
 }
+
+int hook_exists(const char *name)
+{
+	return !!find_hook(name);
+}
diff --git a/hook.h b/hook.h
index 68624f1605..4c547ac15e 100644
--- a/hook.h
+++ b/hook.h
@@ -8,4 +8,9 @@
  */
 const char *find_hook(const char *name);
 
+/*
+ * A boolean version of find_hook()
+ */
+int hook_exists(const char *hookname);
+
 #endif
-- 
2.32.0.576.g59759b6ca7d