nim: 2.0.8 -> 2.2.0; nim: init updatescript;

  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 ]

      ./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

      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/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 '/'

#!/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