nix-bitcoin/examples/shell.nix
Erik Arvstedt cc7149eb78
examples: improve robustness of deploy scripts
- The scripts now work within arbitrary nix-shells.
  Previously, they failed when run from nix shells other than
  `examples/shell.nix`.

- The scripts now work from arbitrary working dirs.
2021-03-16 12:46:18 +01:00

47 lines
1.5 KiB
Nix

let
# This is either a path to a local nix-bitcoin source or an attribute set to
# be used as the fetchurl argument.
nix-bitcoin-release = import ./nix-bitcoin-release.nix;
nix-bitcoin-path =
if builtins.isAttrs nix-bitcoin-release then nix-bitcoin-unpacked
else nix-bitcoin-release;
nixpkgs-path = (import "${toString nix-bitcoin-path}/pkgs/nixpkgs-pinned.nix").nixpkgs;
nixpkgs = import nixpkgs-path {};
nix-bitcoin = nixpkgs.callPackage nix-bitcoin-path {};
nix-bitcoin-unpacked = (import <nixpkgs> {}).runCommand "nix-bitcoin-src" {} ''
mkdir $out; tar xf ${builtins.fetchurl nix-bitcoin-release} -C $out
'';
in
with nixpkgs;
stdenv.mkDerivation rec {
name = "nix-bitcoin-environment";
path = lib.makeBinPath [ nix-bitcoin.extra-container figlet ];
shellHook = ''
export NIX_PATH="nixpkgs=${nixpkgs-path}:nix-bitcoin=${toString nix-bitcoin-path}:."
export PATH="${path}''${PATH:+:}$PATH"
export NIX_BITCOIN_EXAMPLES_DIR="${toString ./.}"
alias fetch-release="${toString nix-bitcoin-path}/helper/fetch-release"
krops-deploy() {
# Ensure strict permissions on secrets/ directory before rsyncing it to
# the target machine
chmod 700 ${toString ./secrets}
$(nix-build --no-out-link ${toString ./krops/deploy.nix})
}
figlet "nix-bitcoin"
(mkdir -p secrets; cd secrets; env -i ${nix-bitcoin.generate-secrets})
# Don't run this hook when another nix-shell is run inside this shell
unset shellHook
'';
}