blockstream-electrs: init at 0.4.1-unstable-2024-11-25

[phlip9]

Description of changes

This PR packages Blockstream/electrs, an efficient BTC chain indexer. It forms part of the backend for https://blockstream.info, but many others also use it.

Blockstream/electrs is actually a fork of romanz/electrs, though the two projects diverged several years ago. romanz/electrs is also packaged in nixpkgs as electrs

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[phlip9]

Looks like some of the upstream's dev-dependencies (electrumd, elementsd) fail to compile on anything not- x86_64-linux even when *_SKIP_DOWNLOAD=1, so I've disabled tests on all other platforms.

[phlip9]

@FliegendeWurst Thanks for the review! I also took the opportunity to update the package, since it was broken with the current bitcoind version in nixpkgs.

[phlip9]

Rebased on master and removed the vendored Cargo.lock in favor of useFetchCargoVendor

[phlip9]

Removed buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [darwin.apple_sdk.frameworks.Security];

[phlip9]

Anything else blocking this from landing?

[phlip9]

• Update 0.4.1-unstable-2024-09-30 -> 0.4.1-unstable-2024-11-25
• Remove bitcoind-v28.patch since my PR landed
• Gate preCheck on doCheck so non-x86_64-linux doesn't accidentally break when it can't build the bitcoind and electrum integration test dependencies.

-  preCheck = ''
+  preCheck = lib.optionalString doCheck ''
     export BITCOIND_EXE=${bitcoind}/bin/bitcoind
     export ELECTRUMD_EXE=${electrum}/bin/electrum
   '';