feat(go): add go as a template

add go as a template when i need to

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1723400035,
+        "narHash": "sha256-WoKZDlBEdMhP+hjquBAh0BhUJbcH2+U8g2mHOr1mv8I=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "a731b45590a5169542990c36ffcde6cebd9a3356",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "release-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -1,12 +1,20 @@
 {
   description = "Flake Template Hell";
   
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/release-24.05";
+  };
+
   outputs = _: {    
     templates = {
       "python" = {
         path = ./templates/python;
         description = "python flake template";
       };
+      "go" = {
+        path = ./templates/go;
+        description = "go flake template";
+      };
     };
   };
 }

templates/go/flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1723400035,
+        "narHash": "sha256-WoKZDlBEdMhP+hjquBAh0BhUJbcH2+U8g2mHOr1mv8I=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "a731b45590a5169542990c36ffcde6cebd9a3356",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "release-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

templates/go/flake.nix

@@ -0,0 +1,29 @@
+{
+  description = "Go flake template";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/release-24.05";
+  };
+
+  outputs = { self, nixpkgs }:
+  let
+    allSystems = [
+      "x86_64-linux"
+      "aarch64-linux"
+    ];
+    forAllSystems = f: nixpkgs.lib.genAttrs allSystems (system: f {
+      pkgs = import nixpkgs { inherit system; };
+      inherit system;
+    });
+  in
+  {
+    packages = forAllSystems ({ pkgs, system }: {
+      default = pkgs.callPackage ./nix/package.nix { };
+      go-app = self.packages.${system}.default;
+    });
+
+    devShells = forAllSystems ({ pkgs, system }: {
+      default = pkgs.callPackage ./nix/shell.nix { inherit (self.packages.${system}) go-app; };
+    });
+  };
+}

templates/go/go.mod

@@ -0,0 +1,3 @@
+module codeberg.org/amadaimbra/flake-template-hell
+
+go 1.22.5

templates/go/main.go

@@ -0,0 +1,108 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"time"
+)
+
+type Quote struct {
+	Quote  string `json:"quote"`
+	Author string `json:"author"`
+}
+
+func (q Quote) PrintQuote() {
+	fmt.Printf("\"%s\" - %s\n", q.Quote, q.Author)
+}
+
+func GetResponse() (*http.Response, error) {
+	var url string = "https://dummyjson.com/quotes/random"
+	var res *http.Response
+	var err error
+	var attempts int = 4
+
+	for attempts != 0 {
+		res, err = http.Get(url)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, "Error encountered... trying again...")
+			time.Sleep(2 * time.Second)
+			attempts--
+			continue
+		}
+
+		if res.StatusCode != 200 {
+			fmt.Fprintf(os.Stderr, "API returned but a 200, so I will be running this again in a few seconds.")
+			time.Sleep(2 * time.Second)
+			attempts--
+			continue
+		}
+
+		if res.StatusCode == 200 {
+			return res, nil
+		}
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	if res.StatusCode != 200 {
+		return nil, errors.New("Gave up attempting to get 200.")
+	}
+
+	return res, nil
+}
+
+func GetBodyFromResponse(res *http.Response) ([]byte, error) {
+	var body []byte
+	var err error
+
+	defer res.Body.Close()
+	body, err = io.ReadAll(res.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return body, nil
+}
+
+func NewQuoteFromBody(body []byte) (Quote, error) {
+	var quote Quote
+	var err error
+
+	err = json.Unmarshal(body, &quote)
+	if err != nil {
+		return Quote{}, err
+	}
+
+	return quote, nil
+}
+
+func main() {
+	var err error
+	var res *http.Response
+
+	res, err = GetResponse()
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	var body []byte
+	body, err = GetBodyFromResponse(res)
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	var quote Quote
+	quote, err = NewQuoteFromBody(body)
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	quote.PrintQuote()
+}

templates/go/nix/package.nix

@@ -0,0 +1,10 @@
+{ buildGoModule, lib }:
+let
+  pname = "go-app";
+  version = "0.1.0";
+in
+buildGoModule {
+  inherit pname version;
+  src = ../.;
+  vendorHash = null;
+}

templates/go/nix/shell.nix

@@ -0,0 +1,11 @@
+{ mkShell, go, go-app, gopls, go-tools, gotools }:
+mkShell {
+  name = "Go Development Shell";
+  inputsFrom = [ go-app ];
+  buildInputs = [
+    go
+    gopls
+    go-tools
+    gotools
+  ];
+}