From 4a69dd403accbc3e810d0b851f7e726ac016384e Mon Sep 17 00:00:00 2001
From: Consolatis <35009135+Consolatis@users.noreply.github.com>
Date: Sat, 16 Mar 2024 20:04:11 +0100
Subject: [PATCH] src/common/buf.c: add private buf_replace_by() helper

..to reduce code duplication
---
 src/common/buf.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/common/buf.c b/src/common/buf.c
index 37505d5f..8342b689 100644
--- a/src/common/buf.c
+++ b/src/common/buf.c
@@ -5,6 +5,15 @@
 #include "common/buf.h"
 #include "common/mem.h"
 
+static void
+buf_replace_by(struct buf *dst, struct buf *src)
+{
+	free(dst->buf);
+	dst->buf = src->buf;
+	dst->len = src->len;
+	dst->alloc = src->alloc;
+}
+
 void
 buf_expand_tilde(struct buf *s)
 {
@@ -17,10 +26,7 @@ buf_expand_tilde(struct buf *s)
 			buf_add_char(&new, s->buf[i]);
 		}
 	}
-	free(s->buf);
-	s->buf = new.buf;
-	s->len = new.len;
-	s->alloc = new.alloc;
+	buf_replace_by(s, &new);
 }
 
 static void
@@ -70,10 +76,7 @@ buf_expand_shell_variables(struct buf *s)
 		}
 	}
 	buf_finish(&environment_variable);
-	free(s->buf);
-	s->buf = new.buf;
-	s->len = new.len;
-	s->alloc = new.alloc;
+	buf_replace_by(s, &new);
 }
 
 void