nix: inject version string in build

.gitignore

@@ -1,22 +1,9 @@
-# If you prefer the allow list template instead of the deny list, see community template:
-# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
-#
-# Binaries for programs and plugins
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
+# Built binary
+/tct
 
 # Test binary, built with `go test -c`
 *.test
 
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-# Go workspace file
-go.work
-go.work.sum
+# Nix
+/.direnv/
+/result*

nix/package.nix

@@ -5,7 +5,7 @@
   fs = lib.fileset;
   s = ../.;
 in
-  buildGoModule {
+  buildGoModule (finalAttrs: {
     pname = "tct";
     version = "0.1.0";
 
@@ -20,5 +20,9 @@ in
 
     vendorHash = "sha256-m5mBubfbXXqXKsygF5j7cHEY+bXhAMcXUts5KBKoLzM=";
 
-    ldflags = ["-s" "-w"];
-  }
+    ldflags = [
+      "-s"
+      "-w"
+      "-X main.version=${finalAttrs.version}"
+    ];
+  })