48 lines
1.1 KiB
Bash
48 lines
1.1 KiB
Bash
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#!/bin/bash
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#
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# Copyright (c) 2017 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#
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# Check for new lines in diff that introduce trailing whitespace.
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# We can't run this check unless we know the commit range for the PR.
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if [ -z "${TRAVIS_COMMIT_RANGE}" ]; then
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exit 0
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fi
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showdiff() {
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if ! git diff -U0 "${TRAVIS_COMMIT_RANGE}" --; then
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echo "Failed to get a diff"
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exit 1
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fi
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}
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# Do a first pass, and if no trailing whitespace was found then exit early.
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if ! showdiff | grep -E -q '^\+.*\s+$'; then
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exit
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fi
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echo "This diff appears to have added new lines with trailing whitespace."
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echo "The following changes were suspected:"
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FILENAME=""
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SEEN=0
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while read -r line; do
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if [[ "$line" =~ ^diff ]]; then
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FILENAME="$line"
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SEEN=0
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else
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if [ "$SEEN" -eq 0 ]; then
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# The first time a file is seen with trailing whitespace, we print the
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# filename (preceded by a newline).
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echo
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echo "$FILENAME"
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SEEN=1
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fi
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echo "$line"
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fi
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done < <(showdiff | grep -E '^(diff --git |\+.*\s+$)')
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exit 1
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