From 0e41f07c477e8cb2c35d8d5504a35b9131f4130a Mon Sep 17 00:00:00 2001 From: Olaoluwa Osuntokun Date: Thu, 26 Sep 2019 16:17:45 -0700 Subject: [PATCH] build/release: create new release package for reproducible builds In this commit, we create a new `build/release` package which houses the build instructions and scripts that we need to do deterministic builds across Windows, Linux, and MacOS. With this new system, it's now possible for all `lnd` developers, as well as users to verify the posted build binaries. This wasn't possible in prior release as only in Go 1.13 did deterministic builds becomes easier/possible. See the new `README.md` for further details. --- build/release/README.md | 34 ++++++++++++++++++++++++++ release.sh => build/release/release.sh | 6 +++-- 2 files changed, 38 insertions(+), 2 deletions(-) create mode 100644 build/release/README.md rename release.sh => build/release/release.sh (79%) diff --git a/build/release/README.md b/build/release/README.md new file mode 100644 index 000000000..ca6d8f18c --- /dev/null +++ b/build/release/README.md @@ -0,0 +1,34 @@ +# lnd's Reproducible Build System + +This package contains the buidl script that the `lnd` project uses in order to +build binaries for each new release. As of Go 1.13, with some new build flags, +binaries are now reproducible, allowing developers to build the binary on +distinct machines, and end up with a byte-for-byte identical binary. However, +this wasn't _fully_ solved in Go 1.13, as the build system still includes the +directory the binary is built into the binary itself. As a result, our scripts +utilize a work around needed until Go 1.13.2. + +## Building a New Release + +### MacOS/Linux/Windows (WSL) + +No prior set up is needed on Linux or MacOS is required in order to build the +release binaries. However, on Windows, the only way to build the binaries atm +is using the Windows Subsystem Linux. One can build the release binaries from +one's `lnd` directory, no matter where it's located. One can download `lnd` to + +``` +git clone https://github.com/lightningnetwork/lnd.git +``` + +Afterwards, the release manager/verifier simply needs to run: +`./build/release/release.sh ` (from the top-level `lnd` directory) , where +`` is the name of the next release/tag. + +## Verifying a Release + +With Go 1.13, it's now possible for third parties to verify a release binary. +Before this release, one had to trust that release manager to build the proper +binary. With this new system, third parties can now _independently_ run the +release process, and verify that all the hashes in the final `manifest.txt` +match up. diff --git a/release.sh b/build/release/release.sh similarity index 79% rename from release.sh rename to build/release/release.sh index 6dbebb38b..db4f4d3b4 100755 --- a/release.sh +++ b/build/release/release.sh @@ -7,6 +7,8 @@ # Use of this source code is governed by the ISC # license. +set -e + # If no tag specified, use date + version otherwise use tag. if [[ $1x = x ]]; then DATE=`date +%Y%m%d` @@ -60,8 +62,8 @@ for i in $SYS; do cd $PACKAGE-$i-$TAG echo "Building:" $OS $ARCH $ARM - env GOOS=$OS GOARCH=$ARCH GOARM=$ARM go build -v -trimpath -ldflags "$COMMITFLAGS" -tags="autopilotrpc signrpc walletrpc chainrpc invoicesrpc routerrpc watchtowerrpc" github.com/lightningnetwork/lnd/cmd/lnd - env GOOS=$OS GOARCH=$ARCH GOARM=$ARM go build -v -trimpath -ldflags "$COMMITFLAGS" -tags="autopilotrpc invoicesrpc walletrpc routerrpc watchtowerrpc" github.com/lightningnetwork/lnd/cmd/lncli + env CGO_ENABLED=0 GOOS=$OS GOARCH=$ARCH GOARM=$ARM go build -v -trimpath -ldflags="-s -w -buildid= $COMMITFLAGS" -tags="autopilotrpc signrpc walletrpc chainrpc invoicesrpc routerrpc watchtowerrpc" github.com/lightningnetwork/lnd/cmd/lnd + env CGO_ENABLED=0 GOOS=$OS GOARCH=$ARCH GOARM=$ARM go build -v -trimpath -ldflags="-s -w -buildid= $COMMITFLAGS" -tags="autopilotrpc invoicesrpc walletrpc routerrpc watchtowerrpc" github.com/lightningnetwork/lnd/cmd/lncli cd .. if [[ $OS = "windows" ]]; then