[PATCH 1/2] libtraceevent: Add check for duplicate functions in man pages

[Steven Rostedt <rostedt@goodmis.org>]

From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

Update the check-manpages.sh script to make sure that there are no
functions that are described in more than one man page.

The output will look like this:

  Found tep_find_function in libtraceevent-func_find.txt and in libtraceevent-func_apis.txt
  Found tep_find_function_address in libtraceevent-func_find.txt and in libtraceevent-func_apis.txt

Link: https://lore.kernel.org/linux-trace-devel/20221224153225.ojre2c3fxktfxtj2@carbon.lan/

Reported-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 check-manpages.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/check-manpages.sh b/check-manpages.sh
index 85b3b7406864..4e9850f18c3d 100755
--- a/check-manpages.sh
+++ b/check-manpages.sh
@@ -15,12 +15,19 @@ cd $1
 MAIN=libtraceevent
 MAIN_FILE=${MAIN}.txt
 
+PROCESSED=""
+
 # Ignore man pages that do not contain functions
 IGNORE=""
 
 for man in ${MAIN}-*.txt; do
 
-	sed -ne '/^NAME/,/^SYNOP/{/^[a-z]/{s/, *$//;s/,/\n/g;s/ //g;s/-.*$/-/;/-/{s/-//p;q};p}}' $man | while read a; do
+	for a in `sed -ne '/^NAME/,/^SYNOP/{/^[a-z]/{s/, *$//;s/,/\n/g;s/ //g;s/-.*$/-/;/-/{s/-//p;q};p}}' $man`; do
+		if [ "${PROCESSED/:${a} /}" != "${PROCESSED}" ]; then
+			P="${PROCESSED/:${a} */}"
+			echo "Found ${a} in ${man} and in ${P/* /}"
+		fi
+		PROCESSED="${man}:${a} ${PROCESSED}"
 		if [ "${IGNORE/$man/}" != "${IGNORE}" ]; then
 			continue
 		fi
-- 
2.35.1