pgf-1.x: use github source

pkgs/tools/typesetting/tex/pgf-tikz/pgf-1.x.nix

@@ -0,0 +1,37 @@
+{ lib
+, stdenvNoCC
+, fetchFromGitHub
+}:
+
+stdenvNoCC.mkDerivation (finalAttrs: {
+  pname = "pgf";
+  version = "1.18";
+
+  src = fetchFromGitHub {
+    owner = "pgf-tikz";
+    repo = "pgf";
+    rev = "refs/tags/version-${lib.replaceChars ["."] ["-"] finalAttrs.version}";
+    hash = "sha256-WZ/191iEDd5VK1bnV9JZx2BZfACUeAUhAqrlyx+ZvA4=";
+  };
+
+  dontConfigure = true;
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/share/texmf-nix
+    cp -prd context doc generic latex plain $out/share/texmf-nix/
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/pgf-tikz/pgf";
+    description = "A Portable Graphic Format for TeX - version ${finalAttrs.version}";
+    branch = lib.versions.major version;
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = platforms.unix;
+  };
+})

pkgs/tools/typesetting/tex/pgf/1.x.nix

@@ -1,24 +0,0 @@
-{ lib, stdenv, fetchurl }:
-
-stdenv.mkDerivation rec {
-  pname = "pgf";
-  version = "1.18";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/pgf/pgf-${version}.tar.gz";
-    sha256 = "0s6b8rx9yfxcjjg18vx1mphnwbd28fl5lnq0dasjz40pp3ypwdjv";
-  };
-
-  dontBuild = true;
-
-  installPhase = "
-    mkdir -p $out/share/texmf-nix
-    cp -prd * $out/share/texmf-nix
-  ";
-
-  meta = with lib; {
-    branch = "1";
-    platforms = platforms.unix;
-    license = licenses.gpl2;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -4043,7 +4043,7 @@ with pkgs;
 
   # Keep the old PGF since some documents don't render properly with
   # the new one.
-  pgf1 = callPackage ../tools/typesetting/tex/pgf/1.x.nix { };
+  pgf1 = callPackage ../tools/typesetting/tex/pgf-tikz/pgf-1.x.nix { };
 
   pgf2 = callPackage ../tools/typesetting/tex/pgf/2.x.nix { };