From 99267518a6f2293eee7352b72e88cac1d985ecbe Mon Sep 17 00:00:00 2001
From: Ruediger Meier
Date: Tue, 27 Jun 2017 08:25:22 +0200
Subject: tools: checkusage can dump all command output

use
$ make CU_DUMP=1 checkusage

for easily reviewing and comparing all output in
  /tmp/checkusage--help
  /tmp/checkusage--version
  /tmp/checkusage--unknownopt

This was a big help when doing all my last usage cleanup.
Actually I used it to dump the original output, edited it
how I would like it, and then changed our programs to match
the wanted output.

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>
---
 tools/checkusage.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'tools')

diff --git a/tools/checkusage.sh b/tools/checkusage.sh
index 3d573a253..6cde8fbf6 100755
--- a/tools/checkusage.sh
+++ b/tools/checkusage.sh
@@ -14,6 +14,9 @@ fi
 builddir="."
 cmds=$(echo $@ | tr ' ' '\n' | sort)
 
+# set env to dump all output to files
+test -z "$CU_DUMP" || rm -f /tmp/checkusage--{help,version,unknownopt}
+
 ## Set alternative options for --help, --version
 ## or --unknownopt. "x" means "not implemented".
 ##
@@ -32,6 +35,7 @@ function exec_option {
 	local cmdb=$1
 	local cmd=$2
 	opt=$3
+	local tofile="/tmp/checkusage$opt"
 
 	local alt="alt_${cmdb}${opt}"
 	alt=${alt//-/_}
@@ -44,6 +48,12 @@ function exec_option {
 		opt=$alt
 	fi
 
+	test -z "$CU_DUMP" || {
+		echo "##########################################################"
+		echo "#### $cmdb"
+		$cmd $opt
+	} >> "$tofile" 2>&1
+
 	out=$("$cmd" $opt 2>/dev/null)
 	err=$("$cmd" $opt 2>&1 >/dev/null)
 	ret=$?
-- 
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