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pmd.sh
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pmd.sh
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#!/usr/bin/env bash
# The MIT License (MIT)
#
# Copyright (c) 2021-2024 Yegor Bugayenko
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
set -e
set -o pipefail
java=$1
output=$2
tmp=$(mktemp -d)
mkdir -p "${tmp}"
cat <<EOT > "${tmp}/config.xml"
<?xml version="1.0"?>
<ruleset name="cam" xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">
<description>Only CoCo</description>
<rule ref="category/java/design.xml/CognitiveComplexity">
<properties>
<property name="reportLevel" value="1" />
</properties>
</rule>
</ruleset>
EOT
cp "${java}" "${tmp}/foo.java"
export PMD_JAVA_OPTS=${JVM_OPTS}
# We don't use --cache here, because it becomes too big and leads to "Out Of Memory" error
pmd pmd -R "${tmp}/config.xml" -d "${tmp}" --format xml --fail-on-violation false > "${tmp}/result.xml" 2> "${tmp}/stderr.txt" || (cat "${tmp}/stderr.txt"; exit 1)
tail='\\href{https://en.wikipedia.org/wiki/Cognitive_complexity}{Cognitive Complexity} values for all methods in a class'
sed 's/xmlns=".*"//g' "${tmp}/result.xml" | \
(xmllint --xpath '//violation[@rule="CognitiveComplexity"]/text()' - 2>/dev/null || echo '') | \
sed -E "s/.*complexity of ([0-9]+).*/\1/" | \
sed '/^[[:space:]]*$/d' | \
ruby -e "
a = STDIN.read.split(' ').map(&:to_i)
sum = a.inject(&:+)
puts \"coco #{a.empty? ? 0 : sum} Summary of ${tail}\"
puts \"acoco #{a.empty? ? 0 : sum / a.count} Average of ${tail}\"
puts \"mxcoco #{a.empty? ? 0 : a.max} Maximum ${tail}\"
puts \"mncoco #{a.empty? ? 0 : a.min} Minimum ${tail}\"
" > "${output}"
rm -rf "${tmp}"