electrum-full-rbf.sh

#!/usr/bin/env bash


set -euo pipefail

# Get last release from RELEASE-NOTES
LAST_RELEASE=$(curl -s https://raw.githubusercontent.com/spesmilo/electrum/master/RELEASE-NOTES | sed -n '1s/^# Release \(\S*\) .*$/\1/p')

if ! [[ -x electrum-"$LAST_RELEASE"-full-rbf-x86_64.AppImage ]]; then
	TMPDIR=$(mktemp -d)

	trap 'rm -rf "$TMPDIR"' EXIT

	pushd "$TMPDIR"

	# Download and import gpg keys
	curl -s https://raw.githubusercontent.com/spesmilo/electrum/master/pubkeys/ThomasV.asc https://raw.githubusercontent.com/spesmilo/electrum/master/pubkeys/sombernight_releasekey.asc https://raw.githubusercontent.com/spesmilo/electrum/master/pubkeys/Emzy.asc | gpg --import -

	# Download last electrum AppImage and gpg signature
	curl -fOL "https://download.electrum.org/$LAST_RELEASE/electrum-$LAST_RELEASE-x86_64.AppImage"
	curl -fOL "https://download.electrum.org/$LAST_RELEASE/electrum-$LAST_RELEASE-x86_64.AppImage.asc"

	# Verify last electrum AppImage with gpg keys
	gpg --verify electrum-"$LAST_RELEASE"-x86_64.AppImage.asc

	# Download appimagetool
	curl -fOL "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage"
	chmod +x "appimagetool-x86_64.AppImage" electrum-"$LAST_RELEASE"-x86_64.AppImage

	# Extract electrum appimage
	./electrum-"$LAST_RELEASE"-x86_64.AppImage --appimage-extract

	# Apply "patch" for Full RBF
	sed -i 's/^\(\s*\)"""Whether RBF is disabled."""/&\n\1return False/' squashfs-root/usr/lib/python3.*/site-packages/electrum/transaction.py

	# Repack AppImage to local directory
	./appimagetool-x86_64.AppImage squashfs-root "$OLDPWD/electrum-$LAST_RELEASE-full-rbf-x86_64.AppImage"

	popd

	rm -rf "$TMPDIR"
fi

# Run it
exec ./electrum-"$LAST_RELEASE"-full-rbf-x86_64.AppImage "$@"