improve examples/shell.nix
The user's local node configuration directory usually contains a copy of examples/shell.nix. 1. Move the shell implementation from shell.nix to nix-bitcoin/helper/makeShell.nix Because the shell is no longer defined locally in the user's config directory, we can now ship new shell features via nix-bitcoin updates. 2. Simplify examples/nix-bitcoin-release.nix nix-bitcoin-release.nix, as generated via `fetch-release`, now contains a simple fetchTarball statement which can be directly imported. This allows us to get rid of the extra `nix-bitcoin-unpacked` derivation which adds a dependency on the user's local nixpkgs. To keep `fetch-release` as simple as possible for easy auditing, we just fetch and verify a `nar-hash.txt` file that is now uploaded via `push-release.sh`. A migration guide for updating the user's local `shell.nix` is automatically printed when the user starts a new shell after updating nix-bitcoin. This is achieved by throwing an error in `generate-secrets`, which is called on shell startup. This commit is required to deploy the new extensible `generate-secrets` mechanism introduced in the next commit.
This commit is contained in:
Erik Arvstedt
parent
8a757e0486
commit
24fd1e9bdc
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@ -1,53 +1,8 @@
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let
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# This is either a path to a local nix-bitcoin source or an attribute set to
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# be used as the fetchurl argument.
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nix-bitcoin-release = import ./nix-bitcoin-release.nix;
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nix-bitcoin-path =
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if builtins.isAttrs nix-bitcoin-release then nix-bitcoin-unpacked
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else nix-bitcoin-release;
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nixpkgs-path = (import "${toString nix-bitcoin-path}/pkgs/nixpkgs-pinned.nix").nixpkgs;
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pkgs = import nixpkgs-path {};
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nix-bitcoin = pkgs.callPackage nix-bitcoin-path {};
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nix-bitcoin-unpacked = (import <nixpkgs> {}).runCommand "nix-bitcoin-src" {} ''
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mkdir $out; tar xf ${builtins.fetchurl nix-bitcoin-release} -C $out
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'';
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nix-bitcoin = toString (import ./nix-bitcoin-release.nix);
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in
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with pkgs;
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stdenv.mkDerivation rec {
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name = "nix-bitcoin-environment";
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path = lib.makeBinPath [ nix-bitcoin.extra-container ];
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shellHook = ''
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export NIX_PATH="nixpkgs=${nixpkgs-path}:nix-bitcoin=${toString nix-bitcoin-path}:."
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export PATH="${path}''${PATH:+:}$PATH"
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export NIX_BITCOIN_EXAMPLES_DIR="${toString ./.}"
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fetch-release() {
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${toString nix-bitcoin-path}/helper/fetch-release
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}
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krops-deploy() {
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# Ensure strict permissions on secrets/ directory before rsyncing it to
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# the target machine
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chmod 700 ${toString ./secrets}
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$(nix-build --no-out-link ${toString ./krops/deploy.nix})
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}
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# Print logo if
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# 1. stdout is a TTY, i.e. we're not piping the output
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# 2. the shell is interactive
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if [[ -t 1 && $- == *i* ]]; then
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${figlet}/bin/figlet "nix-bitcoin"
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fi
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(mkdir -p secrets; cd secrets; env -i ${nix-bitcoin.generate-secrets})
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# Don't run this hook when another nix-shell is run inside this shell
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unset shellHook
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'';
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import "${nix-bitcoin}/helper/makeShell.nix" {
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configDir = ./.;
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# Set this to modify your shell
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# extraShellInitCmds = (pkgs: ''<my bash code>'');
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}
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@ -62,7 +62,7 @@
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nbPkgs = self.mkNbPkgs { inherit system pkgs; };
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packages = flake-utils.lib.flattenTree (removeAttrs nbPkgs [
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"pinned" "modulesPkgs" "nixops19_09" "krops"
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"pinned" "modulesPkgs" "nixops19_09" "krops" "generate-secrets"
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]) // {
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runVM = mkVMScript packages.vm;
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@ -15,26 +15,28 @@ trap "rm -rf $TMPDIR" EXIT
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GPG_HOME=$TMPDIR/gpg-home
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mkdir -p -m 700 "$GPG_HOME"
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cd $TMPDIR
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baseUrl=https://github.com/$repo/releases/download/v$version
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curl --silent -L -O $baseUrl/SHA256SUMS.txt
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curl --silent -L -O $baseUrl/SHA256SUMS.txt.asc
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# Import key
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gpg --homedir $GPG_HOME --import "$scriptDir/key-jonasnick.bin" &> /dev/null
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# Verify key fingerprint
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gpg --homedir $GPG_HOME --list-keys 36C71A37C9D988BDE82508D9B1A70E4F8DCD0366 > /dev/null
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# Verify signature for SHA256SUMS.txt
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gpg --homedir $GPG_HOME --verify SHA256SUMS.txt.asc &> /dev/null || {
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# Fetch nar-hash of release
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cd $TMPDIR
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baseUrl=https://github.com/$repo/releases/download/v$version
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curl --silent -L -O $baseUrl/nar-hash.txt
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curl --silent -L -O $baseUrl/nar-hash.txt.asc
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# Verify signature for nar-hash
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gpg --homedir $GPG_HOME --verify nar-hash.txt.asc &> /dev/null || {
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echo "Error: Signature verification failed. Please open an issue in the project repository."
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exit 1
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}
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sha256=$(cat SHA256SUMS.txt | cut -d\ -f1)
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>&2 echo "Fetched and verified release $version"
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cat <<EOF
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{
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url = "$baseUrl/nix-bitcoin-$version.tar.gz";
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sha256 = "$sha256";
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builtins.fetchTarball {
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url = "https://github.com/$repo/archive/v$version.tar.gz";
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sha256 = "$(cat nar-hash.txt)";
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}
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EOF
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43
helper/makeShell.nix
Normal file
43
helper/makeShell.nix
Normal file
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@ -0,0 +1,43 @@
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{ configDir, extraShellInitCmds ? (pkgs: "") }:
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let
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nixpkgs = (import ../pkgs/nixpkgs-pinned.nix).nixpkgs;
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pkgs = import nixpkgs {};
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nbPkgs = import ../pkgs { inherit pkgs; };
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cfgDir = toString configDir;
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in
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with pkgs;
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stdenv.mkDerivation rec {
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name = "nix-bitcoin-environment";
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path = lib.makeBinPath [ nbPkgs.extra-container ];
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shellHook = ''
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export NIX_PATH="nixpkgs=${nixpkgs}:nix-bitcoin=${toString ../.}:."
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export PATH="${path}''${PATH:+:}$PATH"
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export NIX_BITCOIN_EXAMPLES_DIR="${cfgDir}"
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fetch-release() {
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${toString ./fetch-release}
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}
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krops-deploy() {
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# Ensure strict permissions on secrets/ directory before rsyncing it to
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# the target machine
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chmod 700 "${cfgDir}/secrets"
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$(nix-build --no-out-link "${cfgDir}/krops/deploy.nix")
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}
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# Print logo if
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# 1. stdout is a TTY, i.e. we're not piping the output
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# 2. the shell is interactive
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if [[ -t 1 && $- == *i* ]]; then
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${figlet}/bin/figlet "nix-bitcoin"
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fi
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# Don't run this hook when another nix-shell is run inside this shell
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unset shellHook
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${extraShellInitCmds pkgs}
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'';
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}
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@ -59,6 +59,10 @@ SHA256SUMS=$TMPDIR/SHA256SUMS.txt
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(cd $TMPDIR; sha256sum $ARCHIVE_NAME > $SHA256SUMS)
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gpg -o $SHA256SUMS.asc -a --detach-sig $SHA256SUMS
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cd $TMPDIR
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nix hash to-sri --type sha256 $(nix-prefetch-url --unpack file://$ARCHIVE 2> /dev/null) > nar-hash.txt
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gpg -o nar-hash.txt.asc -a --detach-sig nar-hash.txt
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if [[ $DRY_RUN ]]; then
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echo "Created v$TAG_NAME in $TMPDIR"
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exit 0
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@ -77,6 +81,10 @@ post_asset() {
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curl -H "Authorization: token $OAUTH_TOKEN" --data-binary "@$1" -H "Content-Type: application/octet-stream" \
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$GH_ASSET/$(basename $1) &> /dev/null
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}
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post_asset nar-hash.txt
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post_asset nar-hash.txt.asc
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# Post additional assets for backwards compatibility.
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# This allows older nix-bitcoin installations to upgrade via `fetch-release`.
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post_asset $ARCHIVE
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post_asset $SHA256SUMS
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post_asset $SHA256SUMS.asc
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@ -9,7 +9,7 @@ let self = {
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spark-wallet = pkgs.callPackage ./spark-wallet { };
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liquid-swap = pkgs.python3Packages.callPackage ./liquid-swap { };
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joinmarket = pkgs.callPackage ./joinmarket { inherit (self) nbPython3Packages; };
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generate-secrets = pkgs.callPackage ./generate-secrets { };
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generate-secrets = import ./generate-secrets-deprecated.nix;
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nixops19_09 = pkgs.callPackage ./nixops { };
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krops = import ./krops { };
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netns-exec = pkgs.callPackage ./netns-exec { };
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14
pkgs/generate-secrets-deprecated.nix
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14
pkgs/generate-secrets-deprecated.nix
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@ -0,0 +1,14 @@
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throw ''
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Please update the `shell.nix` of your node configuration.
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To update, do the following:
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1. Switch to the directory containing your `configuration.nix` and `shell.nix`.
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2. Run the following Bash expression (Warning: This overwrites your `shell.nix`):
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# Only update nix-bitcoin-release.nix if it contains a release hash
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if grep -q sha256 nix-bitcoin-release.nix; then
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${toString ../helper/fetch-release} > nix-bitcoin-release.nix && cp ${toString ../examples/shell.nix} .
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else
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cp ${toString ../examples/shell.nix} .
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fi
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''
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