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#!/bin/bash
NAME_ROOT=electrum
# These settings probably don't need any change
export WINEPREFIX=/opt/wine64
export WINEDEBUG=-all
export PYTHONDONTWRITEBYTECODE=1
export PYTHONHASHSEED=22
PYHOME=c:/python3
PYTHON="wine $PYHOME/python.exe -OO -B"
# Let's begin!
set -e
here="$(dirname "$(readlink -e "$0")")"
. "$CONTRIB"/build_tools_util.sh
pushd $WINEPREFIX/drive_c/electrum
VERSION=`git describe --tags --dirty --always`
info "Last commit: $VERSION"
# Load electrum-locale for this release
git submodule update --init
pushd ./contrib/deterministic-build/electrum-locale
if ! which msgfmt > /dev/null 2>&1; then
fail "Please install gettext"
fi
for i in ./locale/*; do
dir=$WINEPREFIX/drive_c/electrum/electrum/$i/LC_MESSAGES
mkdir -p $dir
msgfmt --output-file=$dir/electrum.mo $i/electrum.po || true
done
popd
find -exec touch -d '2000-11-11T11:11:11+00:00' {} +
popd
# Install frozen dependencies
$PYTHON -m pip install --no-warn-script-location -r "$CONTRIB"/deterministic-build/requirements.txt
$PYTHON -m pip install --no-warn-script-location -r "$CONTRIB"/deterministic-build/requirements-hw.txt
pushd $WINEPREFIX/drive_c/electrum
# see https://github.com/pypa/pip/issues/2195 -- pip makes a copy of the entire directory
info "Pip installing Electrum. This might take a long time if the project folder is large."
$PYTHON -m pip install --no-dependencies --no-warn-script-location .
popd
rm -rf dist/
# build standalone and portable versions
info "Running pyinstaller..."
wine "$PYHOME/scripts/pyinstaller.exe" --noconfirm --ascii --clean --name $NAME_ROOT-$VERSION -w deterministic.spec
# set timestamps in dist, in order to make the installer reproducible
pushd dist
find -exec touch -d '2000-11-11T11:11:11+00:00' {} +
popd
info "building NSIS installer"
# $VERSION could be passed to the electrum.nsi script, but this would require some rewriting in the script itself.
wine "$WINEPREFIX/drive_c/Program Files (x86)/NSIS/makensis.exe" /DPRODUCT_VERSION=$VERSION electrum.nsi
cd dist
mv electrum-setup.exe $NAME_ROOT-$VERSION-setup.exe
cd ..
info "Padding binaries to 8-byte boundaries, and fixing COFF image checksum in PE header"
# note: 8-byte boundary padding is what osslsigncode uses:
# https://github.com/mtrojnar/osslsigncode/blob/6c8ec4427a0f27c145973450def818e35d4436f6/osslsigncode.c#L3047
(
cd dist
for binary_file in ./*.exe; do
info ">> fixing $binary_file..."
# code based on https://github.com/erocarrera/pefile/blob/bbf28920a71248ed5c656c81e119779c131d9bd4/pefile.py#L5877
python3 <<EOF
pe_file = "$binary_file"
with open(pe_file, "rb") as f:
binary = bytearray(f.read())
pe_offset = int.from_bytes(binary[0x3c:0x3c+4], byteorder="little")
checksum_offset = pe_offset + 88
checksum = 0
# Pad data to 8-byte boundary.
remainder = len(binary) % 8
binary += bytes(8 - remainder)
for i in range(len(binary) // 4):
if i == checksum_offset // 4: # Skip the checksum field
continue
dword = int.from_bytes(binary[i*4:i*4+4], byteorder="little")
checksum = (checksum & 0xffffffff) + dword + (checksum >> 32)
if checksum > 2 ** 32:
checksum = (checksum & 0xffffffff) + (checksum >> 32)
checksum = (checksum & 0xffff) + (checksum >> 16)
checksum = (checksum) + (checksum >> 16)
checksum = checksum & 0xffff
checksum += len(binary)
# Set the checksum
binary[checksum_offset : checksum_offset + 4] = int.to_bytes(checksum, byteorder="little", length=4)
with open(pe_file, "wb") as f:
f.write(binary)
EOF
done
)
sha256sum dist/electrum*.exe
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