Merge pull request #47977 from charles-dyfis-net/gnupg20-1compat-fix

gnupg1compat: fix compatibility with gnupg20

pkgs/tools/security/gnupg/1compat.nix

···
   name = "gnupg1compat-${gnupg.version}";
 
   builder = writeScript "gnupg1compat-builder" ''
+    PATH=${coreutils}/bin
     # First symlink all top-level dirs
-    ${coreutils}/bin/mkdir -p $out
-    ${coreutils}/bin/ln -s "${gnupg}/"* $out
+    mkdir -p $out
+    ln -s "${gnupg}/"* $out
 
     # Replace bin with directory and symlink it contents
-    ${coreutils}/bin/rm $out/bin
-    ${coreutils}/bin/mkdir -p $out/bin
-    ${coreutils}/bin/ln -s "${gnupg}/bin/"* $out/bin
+    rm $out/bin
+    mkdir -p $out/bin
+    ln -s "${gnupg}/bin/"* $out/bin
+
+    # Add symlinks for any executables that end in 2 and lack any non-*2 version
+    for f in $out/bin/*2; do
+      [[ -x $f ]] || continue # ignore failed globs and non-executable files
+      [[ -e ''${f%2} ]] && continue # ignore commands that already have non-*2 versions
+      ln -s -- "''${f##*/}" "''${f%2}"
+    done
   '';
 
   meta = gnupg.meta // {

pkgs/tools/security/gnupg/20.nix

···
 assert guiSupport -> pinentry != null;
 
 stdenv.mkDerivation rec {
-  name = "gnupg-2.0.30";
+  name = "gnupg-${version}";
+  version = "2.0.30";
 
   src = fetchurl {
     url = "mirror://gnupg/gnupg/${name}.tar.bz2";