Merge fort-nix/nix-bitcoin#469: lnd: Use lndinit for wallet creation

a4a5c72b01 lnd: use `lndinit` for wallet creation (Erik Arvstedt)
e793a3470c lndinit: init at 0.1.3-beta (Erik Arvstedt)

Pull request description:

ACKs for top commit:
  nixbitcoin:
    ACK a4a5c72b01
  jonasnick:
    utACK a4a5c72b01

Tree-SHA512: 5295c1014a5b7bed4b7347b2d671fd877fd719323ea5156bd3bcff6ec94004949f22a9d0698fcc1de925855d36d81d9ea0148dbf0c079ab77e5437a9f53b2bb8

pkgs/default.nix

@@ -10,6 +10,7 @@ let self = {
   clboss = pkgs.callPackage ./clboss { };
   clightning-plugins = pkgs.recurseIntoAttrs (import ./clightning-plugins pkgs self.nbPython3Packages);
   joinmarket = pkgs.callPackage ./joinmarket { inherit (self) nbPython3Packages; };
+  lndinit = pkgs.callPackage ./lndinit { };
   liquid-swap = pkgs.python3Packages.callPackage ./liquid-swap { };
   rtl = pkgs.callPackage ./rtl { };
   # The secp256k1 version used by joinmarket

pkgs/lndinit/default.nix

@@ -0,0 +1,24 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "lndinit";
+  version = "0.1.3-beta";
+
+  src = fetchFromGitHub {
+    owner = "lightninglabs";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-sO1DpbppCurxr9g9nUl9Vx82FJK1mTcUw3rY1Fm1wEU=";
+  };
+
+  vendorSha256 = "sha256-xdxxixSabcuGzwCctHrP/RV/Z8sCQDmk2PU4j1u8MX8=";
+
+  subPackages = [ "." ];
+
+  meta = with lib; {
+    description = "Wallet initializer utility for lnd";
+    homepage = "https://github.com/lightninglabs/lndinit";
+    license = licenses.mit;
+    maintainers = with maintainers; [ earvstedt ];
+  };
+}

pkgs/lndinit/get-sha256.sh

@@ -0,0 +1,26 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p git gnupg curl jq
+set -euo pipefail
+
+TMPDIR="$(mktemp -d -p /tmp)"
+trap "rm -rf $TMPDIR" EXIT
+cd $TMPDIR
+
+echo "Fetching latest release"
+repo=lightninglabs/lndinit
+latest=$(curl -s --show-error https://api.github.com/repos/$repo/releases/latest | jq -r .tag_name)
+echo "Latest release is $latest"
+git clone --depth 1 --branch $latest https://github.com/lightninglabs/lndinit 2>/dev/null
+cd lndinit
+
+# GPG verification
+export GNUPGHOME=$TMPDIR
+echo "Fetching Oliver Gugger's key"
+gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys F4FC70F07310028424EFC20A8E4256593F177720 2> /dev/null
+echo "Verifying latest release"
+git verify-tag $latest
+
+echo "tag: $latest"
+git checkout -q tags/$latest
+rm -rf .git
+nix hash path .