git2cl: modernize & unstable-2008-08-27 -> 3.0 (#471600)

pkgs/by-name/gi/git2cl/package.nix

@@ -1,24 +1,25 @@
 {
-  fetchgit,
+  fetchFromGitLab,
   lib,
-  stdenv,
   perl,
+  stdenv,
 }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation (finalAttrs: {
   pname = "git2cl";
-  version = "unstable-2008-08-27";
+  version = "3.0";
 
-  src = fetchgit {
-    url = "git://repo.or.cz/git2cl.git";
-    rev = "8373c9f74993e218a08819cbcdbab3f3564bbeba";
-    sha256 = "b0d39379640c8a12821442431e2121f7908ce1cc88ec8ec6bede218ea8c21f2f";
+  src = fetchFromGitLab {
+    owner = "jas";
+    repo = "git2cl";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-KEEUKSP7+05VIb/EhuCy0t1qP/UU0iqNzU4AacbdpTg=";
   };
 
   buildInputs = [ perl ];
   installPhase = ''
     install -D -m755 git2cl $out/bin/git2cl
-    install -D -m644 README $out/share/doc/git2cl/README
+    install -D -m644 README.md $out/share/doc/git2cl/README.md
   '';
 
   meta = {
@@ -27,4 +28,4 @@ stdenv.mkDerivation {
     platforms = lib.platforms.unix;
     mainProgram = "git2cl";
   };
-}
+})