termtosvg: init at 0.3.0 (#43069)

`termtosvg` makes screencasts and writes them into a SVG file. The app
can be used on CLI entirely.

Closes #42921

pkgs/tools/misc/termtosvg/default.nix

@@ -0,0 +1,27 @@
+{ lib, python3, fetchFromGitHub }:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "termtosvg";
+  version = "0.3.0";
+
+  # tests are not available when fetching from pypi
+  src = fetchFromGitHub {
+    owner = "nbedos";
+    repo = pname;
+    rev = version;
+    sha256 = "09hw0467pyfj5gwn3768b3rvs5ch3wb1kaax7zsqjd7mw2qh0cjw";
+  };
+
+  propagatedBuildInputs = with python3.pkgs; [ svgwrite pyte ];
+
+  checkInputs = [ python3.pkgs.mock ];
+  preCheck = "export HOME=$(mktemp -d)";
+  postCheck = "unset HOME";
+
+  meta = with lib; {
+    homepage = https://github.com/nbedos/termtosvg;
+    description = "Record terminal sessions as SVG animations";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ ma27 ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -18423,6 +18423,8 @@ with pkgs;
     vte = gnome3.vte-ng;
   };
 
+  termtosvg = callPackage ../tools/misc/termtosvg { };
+
   tesseract = callPackage ../applications/graphics/tesseract { };
   tesseract_4 = lowPrio (callPackage ../applications/graphics/tesseract/4.x.nix { });