Build ARMv7/v8 releases (#19)

.cargo/config

@@ -6,3 +6,9 @@ ar = "x86_64-apple-darwin15-ar"
 # use --no-insert-timestamp to drop PE timestamps in Windows builds for reproducibility
 # https://wiki.debian.org/ReproducibleBuilds/TimestampsInPEBinaries#building_with_mingw-w64
 rustflags = [ "-C", "link-arg=-Wl,--no-insert-timestamp" ]
+
+[target.armv7-unknown-linux-gnueabihf]
+linker = "arm-linux-gnueabihf-gcc"
+
+[target.aarch64-unknown-linux-gnu]
+linker = "aarch64-linux-gnu-gcc"

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 - Reproducible builds using Docker (#51)
 
-- Pre-built binary releases for macOS (#24)
+- Pre-built binary releases for macOS (#24) and ARMv7/v8 (#19)
 
 - Scriptable transaction broadcast command via `--tx-broadcast-cmd <cmd>` (#7)
 

Cargo.toml

@@ -38,3 +38,11 @@ thiserror = "1.0.20"
 tokio = { version = "0.2.20", features = ["macros"], optional = true }
 warp = { version = "0.2.3", optional = true }
 reqwest = { version = "0.10.6", optional = true, features = ["json", "blocking"] }
+
+
+# Statically link OpenSSL when cross-compiling to ARM
+# OpenSSL is currently disabled on ARM, see https://github.com/shesek/bwt/issues/52
+
+# [target.'cfg(any(target_arch = "arm", target_arch = "aarch64"))'.dependencies]
+# openssl = { version = "0.10", features = ["vendored"], optional = true }
+# webhooks = [ "reqwest", "openssl" ]

README.md

@@ -69,7 +69,7 @@ Get yourself a synced Bitcoin Core node (v0.19 is recommended, v0.17 is sufficie
 
 #### Signed pre-built binaries
 
-Available for download on [the releases page](https://github.com/shesek/bwt/releases) (Linux and Windows).
+Available for download on [the releases page](https://github.com/shesek/bwt/releases) (Linux, Mac, Windows and ARM).
 
 The releases are signed by Nadav Ivgi (@shesek).
 The public key can be verified on [keybase](https://keybase.io/nadav),
@@ -264,7 +264,7 @@ Download the `electrum_plugin` package from the [releases page](https://github.c
 After restarting Electrum, you should see bwt in the list of installed plugins under `Tools -> Plugins`.
 
 The supported Electrum version is 3.3.8.
-The plugin is currently available for Linux and Windows.
+The plugin is available for Linux, Mac, Windows and ARM.
 
 Note that it is not possible to install external plugins with the Electrum AppImage or standalone Windows executable.
 You will need to [run from tar.gz](https://github.com/spesmilo/electrum/#running-from-targz) on Linux, use the Windows installer, or [run from source](https://github.com/spesmilo/electrum/#development-version-git-clone).
@@ -1141,7 +1141,9 @@ Dumps the contents of the index store as a debug string.
 
 ## Web Hooks
 
-> If you're building bwt from source, you'll need to set `--features webhooks` to enable web hooks support. This will also require to `apt install libssl-dev pkg-config`. The main pre-built binary and the `shesek/bwt` docker image come with webhooks support enabled by default.
+> If you're building bwt from source, you'll need to set `--features webhooks` to enable web hooks support. This will also require to `apt install libssl-dev pkg-config`.
+>
+> The pre-built binaries ([except for ARM](https://github.com/shesek/bwt/issues/52)) and the `shesek/bwt` docker image come with webhooks support enabled by default.
 
 You can set `--webhook-url <url>` to have bwt send push notifications as a `POST` request to the provided `<url>`. Requests will be sent with a JSON-serialized *array* of one or more index updates as the body.
 
@@ -1214,7 +1216,7 @@ The builds can be reproduced in a Docker container environment as follows:
 ```
 $ git clone https://github.com/shesek/bwt && cd bwt
 
-# Linux & Windows
+# Linux, Windows & ARM
 $ docker build -t bwt-builder -f scripts/builder.Dockerfile .
 $ docker run -it --rm -v `pwd`:/usr/src/bwt bwt-builder
 

scripts/build.sh

@@ -1,8 +1,8 @@
 #!/bin/bash
 set -xeo pipefail
 
-# `osx` is also available, but requires osxcross installed (see builder-os.Dockerfile)
-TARGETS=${TARGETS:-linux,win}
+# `x86_64-osx` is also available, but requires osxcross installed (see builder-os.Dockerfile)
+TARGETS=${TARGETS:-x86_64-linux,x86_64-win,arm32v7,arm64v8}
 
 build() {
   name=$1; target=$2; features=$3
@@ -16,7 +16,10 @@ build() {
 
   mv target/$target/release/bwt$ext $dest
 
-  [[ $target == *"-apple-"* ]] || strip $dest/bwt$ext
+  if [[ $target == "x86_64-"* && $target != *"-apple-"* ]]; then
+    # doesn't work for macOS and ARM binaries
+    strip $dest/bwt$ext
+  fi
 
   cp README.md LICENSE $dest/
 
@@ -28,7 +31,7 @@ pack() {
   name=$1; dir=${2:-$1}
   pushd dist
   touch -t 1711081658 $name $name/*
-  if [[ $name == *"-linux" ]]; then
+  if [[ $name == *"-linux" || $name == *"-arm"* ]]; then
     TZ=UTC tar --mtime='2017-11-08 16:58:00' --owner=0 --sort=name -I 'gzip --no-name' -chf $name.tar.gz $dir
   else
     find -H $dir | sort | xargs zip -X -q $name.zip
@@ -38,25 +41,32 @@ pack() {
 
 version=`cat Cargo.toml | egrep '^version =' | cut -d'"' -f2`
 
-for cfg in linux,x86_64-unknown-linux-gnu \
-           win,x86_64-pc-windows-gnu \
-           osx,x86_64-apple-darwin; do
+for cfg in x86_64-linux,x86_64-unknown-linux-gnu \
+           x86_64-osx,x86_64-apple-darwin \
+           x86_64-win,x86_64-pc-windows-gnu \
+           arm32v7,armv7-unknown-linux-gnueabihf \
+           arm64v8,aarch64-unknown-linux-gnu; do
   IFS=',' read platform target <<< $cfg
   if [[ $TARGETS != *"$platform"* ]]; then continue; fi
 
-  build bwt-$version-x86_64-$platform $target http,electrum,webhooks,track-spends
-  build bwt-$version-electrum_only-x86_64-$platform $target electrum
+  # The OpenSSL dependency enabled by the webhooks feature causes the following error on ARM targets:
+  # /lib/aarch64-linux-gnu/libc.so.6: version `GLIBC_2.25' not found (required by bwt-0.1.4-arm64v8/bwt)
+  # Disable it for now on ARM, follow up at https://github.com/shesek/bwt/issues/52
+  features=http,electrum,track-spends$([[ $platform == "arm"* ]] || echo ',webhooks')
+
+  build bwt-$version-$platform $target $features
+  build bwt-$version-electrum_only-$platform $target electrum
 done
 
 echo Building electrum plugin
-for platform in linux win osx; do
+for platform in x86_64-linux x86_64-win x86_64-osx arm32v7 arm64v8; do
   if [[ $TARGETS != *"$platform"* ]]; then continue; fi
 
-  name=bwt-$version-electrum_plugin-x86_64-$platform
+  name=bwt-$version-electrum_plugin-$platform
   dest=dist/$name
   mkdir $dest
   cp contrib/electrum-plugin/*.py $dest
-  cp dist/bwt-$version-electrum_only-x86_64-$platform/* $dest
+  cp dist/bwt-$version-electrum_only-$platform/* $dest
   # needs to be inside a directory with a name that matches the plugin module name for electrum to load it,
   # create a temporary link to get tar/zip to pack it properly. (can also be done for tar.gz with --transform)
   ln -s $name dist/bwt

scripts/builder-osx.Dockerfile

@@ -14,7 +14,7 @@ RUN git clone https://github.com/tpoechtrager/osxcross /usr/src/osxcross && \
     echo "$OSX_SDK_SHASUM tarballs/MacOSX$OSX_SDK_VERSION.sdk.tar.xz" | sha256sum -c - && \
     UNATTENDED=yes OSX_VERSION_MIN=10.7 ./build.sh
 
-ENV TARGETS=osx
+ENV TARGETS=x86_64-osx
 ENV CC=x86_64-apple-darwin15-cc
 ENV AR=x86_64-apple-darwin15-ar
 ENV PATH=$PATH:/usr/src/osxcross/target/bin

scripts/builder.Dockerfile

@@ -1,8 +1,12 @@
 FROM rust:1.46-slim as builder
-RUN apt-get update && apt-get install -y pkg-config libssl-dev gcc-mingw-w64-x86-64 zip && \
-    rustup target add x86_64-pc-windows-gnu
+RUN apt-get update && apt-get install -y pkg-config make zip \
+        libssl-dev gcc-mingw-w64-x86-64 gcc-arm-linux-gnueabihf gcc-aarch64-linux-gnu && \
+    rustup target add x86_64-pc-windows-gnu && \
+    rustup target add armv7-unknown-linux-gnueabihf && \
+    rustup target add aarch64-unknown-linux-gnu
+    # macOS is built using a separate image, see builder-osx.Dockerfile
 
 WORKDIR /usr/src/bwt
 VOLUME /usr/src/bwt
-ENV TARGETS=linux,win
+ENV TARGETS=x86_64-linux,x86_64-win,arm32v7,arm64v8
 ENTRYPOINT [ "/usr/src/bwt/scripts/build.sh" ]

scripts/release-footer.md

@@ -30,6 +30,6 @@ See [more details here](https://github.com/shesek/bwt#reproducible-builds).
 
 #### Electrum plugin
 
-The [Electrum plugin](https://github.com/shesek/bwt#electrum-plugin) is available for download for Linux and Windows, as the `electrum_plugin` package.
+The [Electrum plugin](https://github.com/shesek/bwt#electrum-plugin) is available for download for Linux, Mac, Windows and ARM as the `electrum_plugin` package.
 
 > ⚠️ **NOTE:** The plugin supports watch-only wallets only and **cannot be used with hot wallets**. This is done as a security measure, which is expected to eventually be lifted. You can use the plugin with hardware wallets or with an offline Electrum setup. For hot wallets, you will need to setup a standalone server instead of using the plugin, ideally far away from your keys.