nitter: patch source version/rev/url into about

pkgs/servers/nitter/default.nix

···
 , fetchFromGitHub
 , nimPackages
 , nixosTests
+, substituteAll
 }:
 
 nimPackages.buildNimPackage rec {
···
     rev = "138826fb4fbdec73fc6fee2e025fda88f7f2fb49";
     hash = "sha256-fdzVfzmEFIej6Kb/K9MQyvbN8aN3hO7RetHL53cD59k=";
   };
+
+  patches = [
+    (substituteAll {
+      src = ./nitter-version.patch;
+      inherit version;
+      inherit (src) rev;
+      url = builtins.replaceStrings [ "archive" ".tar.gz" ] [ "commit" "" ] src.url;
+    })
+  ];
 
   buildInputs = with nimPackages; [
     flatty

pkgs/servers/nitter/nitter-version.patch

···
+diff --git a/src/views/about.nim b/src/views/about.nim
+index e7e8de9..54a6050 100644
+--- a/src/views/about.nim
++++ b/src/views/about.nim
+@@ -3,10 +3,8 @@ import os, strformat
+ import karax/[karaxdsl, vdom]
+ 
+ const
+-  date = staticExec("git show -s --format=\"%cd\" --date=format:\"%Y.%m.%d\"")
+-  hash = staticExec("git show -s --format=\"%h\"")
+-  link = "https://github.com/zedeus/nitter/commit/" & hash
+-  version = &"{date}-{hash}"
++  link = "@url@"
++  version = "@version@-@rev@"
+ 
+ var aboutHtml: string
+