vscode-utils/vscodeEnv: add vscodeWithConfiguration, vscodeExts2nix and vscodeEnv

move mktplcExtRefToFetchArgs to file in order to be shared with the new derivations(privately)

pkgs/misc/vscode-extensions/vscodeExts2nix.nix

@@ -0,0 +1,44 @@
+# based on the passed vscode will stdout a nix expression with the installed vscode extensions 
+{ pkgs                ? import <nixpkgs>{}
+, lib                 ? pkgs.lib
+, vscode              ? pkgs.vscode
+, writeShellScriptBin ? pkgs.writeShellScriptBin
+
+##User input
+
+, extensionsToIgnore  ? []
+# will use those extensions to get sha256 if still exists when executed.
+, extensions          ? [] 
+}:
+let 
+  mktplcExtRefToFetchArgs = import ./mktplcExtRefToFetchArgs.nix;
+in
+writeShellScriptBin "vscodeExts2nix" ''
+  echo '[' 
+
+  for line in $(${vscode}/bin/code --list-extensions --show-versions \
+    ${lib.optionalString (extensionsToIgnore != []) ''
+      | grep -v -i '^\(${lib.concatMapStringsSep "\\|" (e : ''${e.publisher}.${e.name}'') extensionsToIgnore}\)' 
+    ''}
+  ) ; do
+    [[ $line =~ ([^.]*)\.([^@]*)@(.*) ]]
+    name=''${BASH_REMATCH[2]}
+    publisher=''${BASH_REMATCH[1]}
+    version=''${BASH_REMATCH[3]}
+
+    extensions="${lib.concatMapStringsSep "." (e : ''${e.publisher}${e.name}@${e.sha256}'') extensions}"
+    reCurrentExt=$publisher$name"@([^.]*)"
+    if [[ $extensions =~ $reCurrentExt ]]; then
+      sha256=''${BASH_REMATCH[1]}
+    else
+      sha256=$(
+        nix-prefetch-url "${(mktplcExtRefToFetchArgs {publisher = ''"$publisher"''; name = ''"$name"''; version = ''"$version"'';}).url}" 2> /dev/null
+      )
+    fi
+
+    echo "{ name = \"''${name}\"; publisher = \"''${publisher}\"; version = \"''${version}\"; sha256 = \"''${sha256}\";  }"
+  done
+
+
+  echo ']'
+''