Commit 45653c84 authored by sayli karnik's avatar sayli karnik Committed by Jonathan Corbet

scripts: Add a script to find unused documentation

Add a script that finds files with kernel-doc comments for imported functions
that are not included anywhere in documentation.
Signed-off-by: default avatarsayli karnik <karniksayli1995@gmail.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 0d694234
#!/bin/bash
# (c) 2017, Jonathan Corbet <corbet@lwn.net>
# sayli karnik <karniksayli1995@gmail.com>
#
# This script detects files with kernel-doc comments for exported functions
# that are not included in documentation.
#
# usage: Run 'scripts/find-unused-docs.sh directory' from top level of kernel
# tree.
#
# example: $scripts/find-unused-docs.sh drivers/scsi
#
# Licensed under the terms of the GNU GPL License
if ! [ -d "Documentation" ]; then
echo "Run from top level of kernel tree"
exit 1
fi
if [ "$#" -ne 1 ]; then
echo "Usage: scripts/find-unused-docs.sh directory"
exit 1
fi
if ! [ -d "$1" ]; then
echo "Directory $1 doesn't exist"
exit 1
fi
cd "$( dirname "${BASH_SOURCE[0]}" )"
cd ..
cd Documentation/
echo "The following files contain kerneldoc comments for exported functions \
that are not used in the formatted documentation"
# FILES INCLUDED
files_included=($(grep -rHR ".. kernel-doc" --include \*.rst | cut -d " " -f 3))
declare -A FILES_INCLUDED
for each in "${files_included[@]}"; do
FILES_INCLUDED[$each]="$each"
done
cd ..
# FILES NOT INCLUDED
for file in `find $1 -name '*.c'`; do
if [[ ${FILES_INCLUDED[$file]+_} ]]; then
continue;
fi
str=$(scripts/kernel-doc -text -export "$file" 2>/dev/null)
if [[ -n "$str" ]]; then
echo "$file"
fi
done
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