From 1ebc98476dd379e5c0b2d59e5bf158f2597022c1 Mon Sep 17 00:00:00 2001
From: Johannes Marbach <n0-0ne+gitlab@mailbox.org>
Date: Sat, 25 Sep 2021 14:34:54 +0200
Subject: [PATCH] Auto-append newline

---
 indev.c | 6 +++---
 log.c   | 8 +++++++-
 log.h   | 2 +-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/indev.c b/indev.c
index b1cb4a6..27690bb 100644
--- a/indev.c
+++ b/indev.c
@@ -132,13 +132,13 @@ static void auto_connect(libinput_capability capability, int max_num_devs, int *
 static void log_connection(libinput_capability capability, char *dev) {
     switch (capability) {
         case LIBINPUT_CAPABILITY_KEYBOARD:
-            ul_log(UL_LOG_LEVEL_VERBOSE, "Connecting keyboard device %s\n", dev);
+            ul_log(UL_LOG_LEVEL_VERBOSE, "Connecting keyboard device %s", dev);
             break;
         case LIBINPUT_CAPABILITY_POINTER:
-            ul_log(UL_LOG_LEVEL_VERBOSE, "Connecting pointer device %s\n", dev);
+            ul_log(UL_LOG_LEVEL_VERBOSE, "Connecting pointer device %s", dev);
             break;
         case LIBINPUT_CAPABILITY_TOUCH:
-            ul_log(UL_LOG_LEVEL_VERBOSE, "Connecting touchscreen device %s\n", dev);
+            ul_log(UL_LOG_LEVEL_VERBOSE, "Connecting touchscreen device %s", dev);
             break;
         case LIBINPUT_CAPABILITY_NONE:
             break;
diff --git a/log.c b/log.c
index c0c4f34..fe874c0 100644
--- a/log.c
+++ b/log.c
@@ -21,6 +21,7 @@
 #include "log.h"
 
 #include <stdarg.h>
+#include <string.h>
 
 
 /**
@@ -47,8 +48,13 @@ void ul_log(ul_log_level level, const char *format, ...) {
     va_start(args, format);
     vfprintf(stderr, format, args);
     va_end(args);
+
+    size_t l = strlen(format);
+    if (l > 0 && format[l - 1] != '\n') {
+        fprintf(stderr, "\n");
+    }
 }
 
 void ul_log_print_cb(const char *msg) {
-    ul_log(UL_LOG_LEVEL_VERBOSE, "%s\n", msg);
+    ul_log(UL_LOG_LEVEL_VERBOSE, msg);
 }
diff --git a/log.h b/log.h
index 9cbec01..4f2c415 100644
--- a/log.h
+++ b/log.h
@@ -41,7 +41,7 @@ typedef enum {
 void ul_log_set_level(ul_log_level level);
 
 /**
- * Log a message.
+ * Log a message. A newline character is appended unless the message ends in one.
  * 
  * @param level log level of the message
  * @param format message format string