0e41f07c47
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.
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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 <TAG> (from the top-level lnd directory) , where
<TAG> 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.