Merge #340: AuxPoW: Add lint_diff.sh script

083e202 Namecoin / AuxPoW: Add lint_diff.sh script (Jeremy Rand)

Pull request description:

  This script filters linter warnings to only find issues relative to upstream Electrum.

  Refs #339

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contrib/lint_diff.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+shopt -s failglob
+
+# Prereqs:
+# sudo apt install flake8
+# go install -v github.com/bradleyfalzon/revgrep/cmd/revgrep@master
+
+CURRENT_BRANCH="$(git branch --show-current)"
+
+if echo "${CURRENT_BRANCH}" | grep auxpow > /dev/null
+then
+	BASE_BRANCH="$(echo ${CURRENT_BRANCH} | sed s/auxpow/bitcoin/)"
+else
+	if echo "${CURRENT_BRANCH}" | grep master > /dev/null
+	then
+		BASE_BRANCH="$(echo ${CURRENT_BRANCH} | sed s/master/auxpow/)"
+	else
+		echo "Unrecognized current branch: ${CURRENT_BRANCH}"
+		exit 1
+	fi
+fi
+
+flake8 . --select E,F,W,C90 --extend-ignore E501 --extend-exclude ./electrum_nmc/electrum/null_impl |& revgrep -regexp '\./(.*?):([0-9]+):([0-9]+)?:?\s*(.*)' "${BASE_BRANCH}" "${CURRENT_BRANCH}"