From faef33addaec3d2d790fffa99ec704bf3db7073a Mon Sep 17 00:00:00 2001
From: eveeifyeve <88671402+Eveeifyeve@users.noreply.github.com>
Date: Sat, 5 Oct 2024 13:44:46 +1000
Subject: [PATCH] nim: 2.0.8 -> 2.2.0; nim: init updatescript;

nim: init updatescript

nim: updated hash

nim: fix patches
---
 pkgs/development/compilers/nim/default.nix    | 12 +++--
 .../compilers/nim/extra-mangling-2.patch      | 48 +++++++++++++++++++
 pkgs/development/compilers/nim/update.sh      | 25 ++++++++++
 3 files changed, 81 insertions(+), 4 deletions(-)
 create mode 100644 pkgs/development/compilers/nim/extra-mangling-2.patch
 create mode 100644 pkgs/development/compilers/nim/update.sh

diff --git a/pkgs/development/compilers/nim/default.nix b/pkgs/development/compilers/nim/default.nix
index 68d9eedacc8d..88d21c75a981 100644
--- a/pkgs/development/compilers/nim/default.nix
+++ b/pkgs/development/compilers/nim/default.nix
@@ -76,12 +76,12 @@ in {
 
   nim-unwrapped-2 = stdenv.mkDerivation (finalAttrs: {
     pname = "nim-unwrapped";
-    version = "2.0.8";
+    version = "2.2.0";
     strictDeps = true;
 
     src = fetchurl {
       url = "https://nim-lang.org/download/nim-${finalAttrs.version}.tar.xz";
-      hash = "sha256-VwLahEcA0xKdtzFwtcYGrb37h+grgWwNkRB+ogpl3xY=";
+      hash = "sha256-zphChJyXYOSH7N0c2t98DyhEyvrmBUAcfHKuJXZEiTw=";
     };
 
     buildInputs = [ boehmgc openssl pcre readline sqlite ]
@@ -94,7 +94,7 @@ in {
       ./nixbuild.patch
       # Load libraries at runtime by absolute path
 
-      ./extra-mangling.patch
+      ./extra-mangling-2.patch
       # Mangle store paths of modules to prevent runtime dependence.
 
       ./openssl.patch
@@ -151,12 +151,16 @@ in {
       runHook postInstall
     '';
 
+    passthru = {
+      updateScript.command = [ ./update.sh ];
+    };
+
     meta = with lib; {
       description = "Statically typed, imperative programming language";
       homepage = "https://nim-lang.org/";
       license = licenses.mit;
       mainProgram = "nim";
-      maintainers = with maintainers; [ ehmry ];
+      maintainers = with maintainers; [ ehmry eveeifyeve ];
     };
   });
 
diff --git a/pkgs/development/compilers/nim/extra-mangling-2.patch b/pkgs/development/compilers/nim/extra-mangling-2.patch
new file mode 100644
index 000000000000..dfee7d8675ce
--- /dev/null
+++ b/pkgs/development/compilers/nim/extra-mangling-2.patch
@@ -0,0 +1,48 @@
+diff --git a/compiler/modulepaths.nim b/compiler/modulepaths.nim
+index c9e6060e5..acb289498 100644
+--- a/compiler/modulepaths.nim
++++ b/compiler/modulepaths.nim
+@@ -79,6 +79,13 @@ proc checkModuleName*(conf: ConfigRef; n: PNode; doLocalError=true): FileIndex =
+   else:
+     result = fileInfoIdx(conf, fullPath)
+ 
++proc rot13(result: var string) =
++  for i, c in result:
++    case c
++    of 'a'..'m', 'A'..'M': result[i] = char(c.uint8 + 13)
++    of 'n'..'z', 'N'..'Z': result[i] = char(c.uint8 - 13)
++    else: discard
++
+ proc mangleModuleName*(conf: ConfigRef; path: AbsoluteFile): string =
+   ## Mangle a relative module path to avoid path and symbol collisions.
+   ##
+@@ -87,9 +94,11 @@ proc mangleModuleName*(conf: ConfigRef; path: AbsoluteFile): string =
+   ##
+   ## Example:
+   ## `foo-#head/../bar` becomes `@foo-@hhead@s..@sbar`
+-  "@m" & relativeTo(path, conf.projectPath).string.multiReplace(
++  result = "@m" & relativeTo(path, conf.projectPath).string.multiReplace(
+     {$os.DirSep: "@s", $os.AltSep: "@s", "#": "@h", "@": "@@", ":": "@c"})
++  rot13(result)
+ 
+ proc demangleModuleName*(path: string): string =
+   ## Demangle a relative module path.
+   result = path.multiReplace({"@@": "@", "@h": "#", "@s": "/", "@m": "", "@c": ":"})
++  rot13(result)
+diff --git a/compiler/modulegraphs.nim b/compiler/modulegraphs.nim
+index 77762d23a..59dd8903a 100644
+--- a/compiler/modulegraphs.nim
++++ b/compiler/modulegraphs.nim
+@@ -503,7 +503,11 @@ proc uniqueModuleName*(conf: ConfigRef; m: PSym): string =
+   for i in 0..<trunc:
+     let c = rel[i]
+     case c
+-    of 'a'..'z', '0'..'9':
++    of 'a'..'m':
++      result.add char(c.uint8 + 13)
++    of 'n'..'z':
++      result.add char(c.uint8 - 13)
++    of '0'..'9':
+       result.add c
+     of {os.DirSep, os.AltSep}:
+       result.add 'Z' # because it looks a bit like '/'
diff --git a/pkgs/development/compilers/nim/update.sh b/pkgs/development/compilers/nim/update.sh
new file mode 100644
index 000000000000..a611f97b259a
--- /dev/null
+++ b/pkgs/development/compilers/nim/update.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p bash nix-update curl coreutils jq
+
+set -ex
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
+
+curl_github() {
+  curl ${GITHUB_TOKEN:+" -u \":$GITHUB_TOKEN\""} "$@"
+}
+
+
+case "$UPDATE_NIX_ATTR_PATH" in
+nim)
+  latestTag=$(curl_github https://api.github.com/repos/nim-lang/Nim/releases/latest | jq -r ".tag_name")
+  latestVersion="$(expr "$latestTag" : 'v\(.*\)')"
+
+  echo "Updating Nim"
+  nix-update --version "$latestVersion" \
+    --override-filename "$SCRIPT_DIR/default.nix" \
+  nim
+*)
+  echo "Unknown attr path $UPDATE_NIX_ATTR_PATH"
+  ;;
+esac