Files
prysm/third_party
Preston Van Loon 2302ef918a Vendored github.com/tyler-smith/go-bip39 (#16015)
* Vendor go-bip39 dependency locally to third_party/

The github.com/tyler-smith/go-bip39 repository has been deleted from GitHub 
but is still needed for BIP-39 mnemonic functionality in the validator wallet 
system. This change vendors v1.1.0 of the library into third_party/go-bip39/ 
to ensure continued availability.

Changes:
- Copy go-bip39 v1.1.0 source from Go module cache to third_party/go-bip39/
- Create BUILD.bazel files for main package and wordlists subpackage
- Update 5 BUILD.bazel files to reference local vendored version instead of external dependency
- Remove go-bip39 from go.mod and deps.bzl
- All builds and tests pass successfully

The vendored package includes all 9 language wordlists (English, Chinese Simplified/Traditional, 
Czech, French, Italian, Japanese, Korean, Spanish) and maintains the original import paths for 
compatibility.

* Changelog fraagment

* use go mod replace for vendored lib

* Run gazelle

---------

Co-authored-by: Kasey Kirkham <kasey@users.noreply.github.com>
2025-11-14 17:58:44 +00:00
..
2019-07-19 19:16:10 -05:00

Third Party Package Patching

This directory includes local patches to third party dependencies we use in Prysm. Sometimes, we need to make a small change to some dependency for ease of use in Prysm without wanting to maintain our own fork of the dependency ourselves. Our build tool, Bazel allows us to include patches in a seamless manner based on simple diff rules.

This README outlines how patching works in Prysm and an explanation of previously created patches.

Given maintaining a patch can be difficult and tedious, patches are NOT the recommended way of modifying dependencies in Prysm unless really needed

Table of Contents

Prerequisites

Bazel Installation:

  • The latest release of Bazel
  • A modern UNIX operating system (MacOS included)

Creating a Patch

To create a patch, we need an original version of a dependency which we will refer to as a and the patched version referred to as b.

cd /tmp
git clone https://github.com/someteam/somerepo a
git clone https://github.com/someteam/somerepo b && cd b

Then, make all your changes in b and finally create the diff of all your changes as follows:

cd ..
diff -ur --exclude=".git" a b > $GOPATH/src/github.com/prysmaticlabs/prysm/third_party/YOURPATCH.patch

Next, we need to tell the Bazel WORKSPACE to patch the specific dependency. Here's an example for a patch we use today for the Ethereum APIs dependency:

go_repository(
    name = "com_github_prysmaticlabs_ethereumapis",
    commit = "367ca574419a062ae26818f60bdeb5751a6f538",
    patch_args = ["-p1"],
    patches = [
        "//third_party:com_github_prysmaticlabs_ethereumapis-tags.patch",
    ],
    importpath = "github.com/prysmaticlabs/ethereumapis",
)

Now, when used in Prysm, the dependency you patched will have the patched modifications when you run your code.