scripts/week

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) 2024 - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#
# cve_update - Update all existing CVE entries based on the latest information
#	       pulled from the git tree(s).
#
# Will look through the list of all published cve ids and run 'bippy' on them
# to update the mbox and json files.  It is recommended that after this
# happens, submit the json files to CVE again, if version numbers have changed.
#
# This is good to do after older stable kernels have been released as often
# CVEs are included in older stable kernels AFTER they show up in newer ones,
# and this keeps the database at CVE more up to date and friendly for others to
# rely on.  The mbox files generally shouldn't be resent, as that's just noise
# that no one wants to see.
#
# Usage:
#	cve_update
#
# Requires:
#  bippy

# Colors are good!
if [[ -t 1 ]]; then
	txtred=$(tput setaf 1)		# Red
	txtgrn=$(tput setaf 2)		# Green
	txtblu=$(tput setaf 4)		# Blue
	txtcyn=$(tput setaf 6)		# Cyan
	txtrst=$(tput sgr0)		# Text reset
else
	txtred=""
	txtgrn=""
	txtblu=""
	txtcyn=""
	txtrst=""
fi

# Colors are good!
txtred=$(tput setaf 1)		# Red
txtgrn=$(tput setaf 2)		# Green
txtblu=$(tput setaf 4)		# Blue
txtcyn=$(tput setaf 6)		# Cyan
txtrst=$(tput sgr0)		# Text reset

# set where the tool was run from,
# the name of our script,
# and the git version of it
DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
SCRIPT=${0##*/}

help() {
	echo "${SCRIPT}"
	echo "	Note, CVE_USER must be set to your CVE_USER email address"
	exit 1
}

if [[ "${TMPDIR}" == "" ]]; then
	echo "TMPDIR environment variable must be set, exiting ${SCRIPT}"
	exit 1
fi

YEAR=$1

# don't use unset variables
set -o nounset

cd "${DIR}"/../ || exit 1

cve_to_week() {
	local c=$1

	cve=${c%.sha1}
	sha=$(git log --oneline ${cve} | tail -n 1 | cut -f 1 -d ' ')
	date=$(git show --pretty=format:%ai -s "${sha}" | cut -f 1 -d ' ')
	week=$(scripts/to_week.pl "${date}")
	#echo "sha=${sha} date=${date} week=${week}"
	echo "${week}"


}

cve_year() {
	local year=$1
	local threads=$(nproc)

	# get a count of ids for this year
	count=$(ls cve/published/${year}/*.sha1 | wc -l)

	echo "Counting ${txtcyn}${count}${txtrst} CVE ids for ${txtgrn}${year}${txtrst} with ${txtcyn}${threads}${txtrst} processes..."
	for cve in cve/published/${year}/*.sha1 ; do
		while :
		do
			if [[ $(jobs -p | wc -l) -lt ${threads} ]]; then
				#echo "cve=${cve}"
				cve_to_week "${cve}" &
				# cve_to_week "${cve}" &
				break
			else
				sleep 1
			fi
		done
	done
	wait
}

if [[ "${YEAR}" == "" ]]; then
	echo "Must provide a year"
	exit 1
fi

cve_year ${YEAR}
exit 0