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#!/usr/bin/env bash
#
# Checks the number of lint issues against historical values. Used in
# Travis CI builds to fail when the number increases by exploiting the
# caching mechanism.
if [[ $# != 2 || ! -f $1 ]]; then \
echo "Usage: $0 <lint.xml file> <historical.xml file>"
exit 1
fi
lint_file="$1"
historical_file="$2"
xqilla="$(which xqilla)"
if [[ ! -x $xqilla ]]; then \
echo "Error: cannot find xqilla"
exit 1
fi
if [[ ! -f $historical_file ]]; then \
# no cache history, store this one and exit
cp "$lint_file" "$historical_file"
exit 0
fi
tmp_dir="$(mktemp -d lint.XXXXXXXX)"
trap 'rm -rf $tmp_dir' ERR EXIT
lint_results="$tmp_dir/lint.txt"
hist_results="$tmp_dir/hist.txt"
run_query() {
local xqilla_script='string-join(//issue/location/(concat("file=", @file, " line=", @line, " column=", @column, " message=", ../@message)), " ")'
xqilla -i "$1" <(echo "$xqilla_script") | sed "s,$PWD/,,g" > "$2"
}
run_query "$lint_file" "$lint_results"
run_query "$historical_file" "$hist_results"
old_count=$(wc -l < "$hist_results")
new_count=$(wc -l < "$lint_results")
echo "Historical count: $old_count, new count: $new_count"
if [[ $new_count > $old_count ]]; then \
echo "FAILURE: lint issues increased from $old_count to $new_count"
diff -u "$hist_results" "$lint_results"
exit 2
fi
if [[ $TRAVIS_PULL_REQUEST == false ]]; then \
# Okay, we either stayed the same or reduced our number.
# Write it out so we can check it next build!
cp "$lint_file" "$historical_file"
fi
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