replace Makefile with a Nix package

Makefile

@@ -1,57 +0,0 @@
-PREFIX ?= /usr/local
-GOFLAGS = -tags='fts5,libsqlite3' -ldflags="-s -w -X main.compiledOn=$(SOURCE_DATE_EPOCH)"
-
-.PHONY: all
-all: bin/magneticod bin/magneticow
-
-bin/magneticod:
-	go install $(GOFLAGS) ./cmd/magneticod
-
-bin/magneticow:
-	# TODO: minify /data/* files!
-	go install $(GOFLAGS) ./cmd/magneticow
-
-.PHONY: vet
-vet:
-	go vet ./...
-
-.PHONY: check
-check:
-	go test $(GOFLAGS) ./...
-
-.PHONY: install
-install: bin/magneticod bin/magneticow
-	install -m 555 -Dt "$(PREFIX)/bin/" bin/magnetico{w,d}
-
-.PHONY: format
-format:
-	gofmt -w ./cmd/
-	gofmt -w ./pkg/
-
-# Formatting Errors
-#     Since gofmt returns zero even if there are files to be formatted, we use:
-#
-#       ! gofmt -d ${GOPATH}/path/ 2>&1 | read
-#
-#     to return 1 if there are files to be formatted, and 0 if not.
-#     https://groups.google.com/forum/#!topic/Golang-Nuts/pdrN4zleUio
-#
-# How can I use Bash syntax in Makefile targets?
-#     Because `read` is a bash command.
-#     https://stackoverflow.com/a/589300/4466589
-#
-# How to ignore bindata.go
-#     Due to irrational insistence of some Go developers, gofmt, like many
-#     other tools of Go ecosystem, does not have flags for common scenarios
-#     such as ignoring certain files by pattern etc. Thus we use `go list`
-#     and grep together to achieve the desired result.
-#
-#     The original query is this:
-#         gofmt -l $(go list -f $'{{range .GoFiles}}{{$.Dir}}/{{.}}\n{{end}}' ./... | grep -v bindata.go)
-#
-#     The original query is then escaped for Makefile (by repeating dollar signs $ -> $$).
-.PHONY: check-formatting
-check-formatting: SHELL:=/bin/bash   # HERE: this is setting the shell for check-formatting only
-check-formatting:
-	! gofmt -l $$(go list -f $$'{{range .GoFiles}}{{$$.Dir}}/{{.}}\n{{end}}' ./... | grep -v bindata.go) 2>&1 | tee /dev/fd/2 | read
-	! gofmt -l $$(go list -f $$'{{range .GoFiles}}{{$$.Dir}}/{{.}}\n{{end}}' ./... | grep -v bindata.go) 2>&1 | tee /dev/fd/2 | read

default.nix

@@ -0,0 +1,35 @@
+let
+
+  nixpkgs = builtins.fetchTarball
+    { url = "https://github.com/NixOS/nixpkgs/archive/f12ee5f64c6a.tar.gz";
+      sha256 = "14afxk35w3kbqimxcp39ngv9cqpc24glss1727ymk4napfg5v7hm";
+    };
+
+  pkgs = import <nixpkgs> { };
+
+  magnetico = { lib, buildGoModule, nixosTests, sqlite }:
+    buildGoModule {
+      pname = "magnetico";
+      version = "0.12.1";
+
+      src = lib.cleanSource ./.;
+
+      vendorHash = "sha256-jIVMQtPCq9RYaYsH4LSZJFspH6TpCbgzHN0GX8cM/CI=";
+
+      buildInputs = [ sqlite ];
+
+      tags = [ "fts5" "libsqlite3" ];
+      ldflags = [ "-s" "-w" ];
+
+      passthru.tests = { inherit (nixosTests) magnetico; };
+
+      meta = with lib; {
+        description  = "Autonomous (self-hosted) BitTorrent DHT search engine suite";
+        homepage     = "https://maxwell.ydns.eu/git/rnhmjoj/magnetico";
+        license      = licenses.agpl3Only;
+        badPlatforms = platforms.darwin;
+        maintainers  = with maintainers; [ rnhmjoj ];
+      };
+    };
+
+in pkgs.callPackage magnetico { }