linux-kernel - [PATCH v2] scripts: kconfig: merge_config: config files: add a trailing newline

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Message-ID: <20240805092234.1338866-1-anders.roxell@linaro.org>
Date: Mon,  5 Aug 2024 11:22:34 +0200
From: Anders Roxell <anders.roxell@...aro.org>
To: masahiroy@...nel.org
Cc: linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Anders Roxell <anders.roxell@...aro.org>
Subject: [PATCH v2] scripts: kconfig: merge_config: config files: add a trailing newline

When merging files without trailing newlines at the end of the file, two
config fragments end up at the same row if file1.config doens't have a
trailing newline at the end of the file.

file1.config "CONFIG_1=y"
file2.config "CONFIG_2=y"
./scripts/kconfig/merge_config.sh -m .config file1.config file2.config

This will generate a .config looking like this.
cat .config
...
CONFIG_1=yCONFIG_2=y"

Making sure so we add a newline at the end of every config file that is
passed into the script.

Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
---
 scripts/kconfig/merge_config.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 902eb429b9db..0b7952471c18 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -167,6 +167,8 @@ for ORIG_MERGE_FILE in $MERGE_LIST ; do
 			sed -i "/$CFG[ =]/d" $MERGE_FILE
 		fi
 	done
+	# In case the previous file lacks a new line at the end
+	echo >> $TMP_FILE
 	cat $MERGE_FILE >> $TMP_FILE
 done
 
-- 
2.43.0