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#!/usr/bin/env bash

help()

{

# Display Help

echo "Usage: filter-warnings.sh [LOG_FILE]"

echo

echo "Extracts all warnings generated by the C++ compiler into warnings.log in the current "

echo "working directory. Sorts by source file and skips duplicates. Statistics about warnings "

echo "are displayed on stdout."

echo

echo "options:"

echo "h Print this Help and exit."

echo

}

o2Warnings=(

'pointer-sign'

'override-init'

'catch-value'

'pessimizing-move'

'reorder'

'delete-non-virtual-dtor'

'deprecated-copy'

'redundant-move'

'overloaded-virtual'

'address'

'bool-compare'

'bool-operation'

'char-subscripts'

'comment'

'enum-compare'

'format'

'format-overflow'

'format-truncation'

'int-in-bool-context'

'init-self'

'logical-not-parentheses'

'maybe-uninitialized'

'memset-elt-size'

'memset-transposed-args'

'misleading-indentation'

'missing-attributes'

'multistatement-macros'

'narrowing'

'nonnull'

'nonnull-compare'

'openmp-simd'

'parentheses'

'restrict'

'return-type'

'sequence-point'

'sign-compare'

'sizeof-pointer-div'

'sizeof-pointer-memaccess'

'strict-aliasing'

'strict-overflow'

'switch'

'tautological-compare'

'trigraphs'

'uninitialized'

'unused-label'

'unused-value'

'unused-variable'

'volatile-register-var'

'zero-length-bounds'

'unused-but-set-variable'

'stringop-truncation'

'clobbered'

'cast-function-type'

'empty-body'

'ignored-qualifiers'

'implicit-fallthrough'

'missing-field-initializers'

'sign-compare'

'string-compare'

'type-limits'

'uninitialized'

'shift-negative-value'

)

# Process the input options.

while getopts ":h" option; do

case $option in

h | *) # display Help

help

exit;;

esac

done

# only argument is the log file

if [ "$#" -ne 1 ]; then

help

exit

# input

logFile=${1}

# output

warningsFile="warnings.log"

# extract unique warnings and sort

grep "warning:" ${logFile} | sort -u > ${warningsFile}

# calculate and print statistics on warnings

nTotalWarnings="$(cat ${warningsFile} | grep -c "warning:")"

printf "Total warnings: ${nTotalWarnings}\n"

printf "##################################\n"

for warning in ${o2Warnings[@]}; do

nWarnings=$(cat ${warningsFile} | grep -c "${warning}")

printf '%-30s:\t%6s\t%8s\n' "${warning}" "${nWarnings}" "$(python3 -c "print(\"{:>.1%} \".format(${nWarnings} / ${nTotalWarnings}))")"

done