sqlite{,-analyzer}: add archiveVersion function

pkgs/development/libraries/sqlite/analyzer.nix

@@ -1,11 +1,15 @@
 { stdenv, fetchurl, unzip, sqlite, tcl }:
 
+let
+  archiveVersion = import ./archive-version.nix stdenv.lib;
+in
+
 stdenv.mkDerivation rec {
   name = "sqlite-analyzer-${version}";
   version = "3.23.1";
 
   src = assert version == sqlite.version; fetchurl {
-    url = https://sqlite.org/2018/sqlite-src-3230100.zip;
+    url = "https://sqlite.org/2018/sqlite-src-${archiveVersion version}.zip";
     sha256 = "1z3xr8d8ds4l8ndkg34cii13d0w790nlxdkrw6virinqi7wmmd1d";
   };
 

pkgs/development/libraries/sqlite/archive-version.nix

@@ -0,0 +1,11 @@
+lib: version:
+
+with lib;
+  
+let
+  fragments = splitString "." version;
+  major = head fragments;
+  minor = concatMapStrings (fixedWidthNumber 2) (tail fragments);
+in
+
+major + minor + "00"

pkgs/development/libraries/sqlite/default.nix

@@ -4,13 +4,17 @@ assert interactive -> readline != null && ncurses != null;
 
 with stdenv.lib;
 
+let
+  archiveVersion = import ./archive-version.nix stdenv.lib;
+in
+
 stdenv.mkDerivation rec {
   name = "sqlite-${version}";
   version = "3.23.1";
 
   # NB! Make sure to update analyzer.nix src (in the same directory).
   src = fetchurl {
-    url = https://sqlite.org/2018/sqlite-autoconf-3230100.tar.gz;
+    url = "https://sqlite.org/2018/sqlite-autoconf-${archiveVersion version}.tar.gz";
     sha256 = "09ggapjhqjb2pzk0wkfczil77plijg3d77m2bpzlwx2y7ql2p14j";
   };