Clean up nix-container-demo-helper.sh

Dependencies

• [2] W2G433QU Refactor libdemo and flakeref for nix run commands

Change contents

• replacement in bash/nix-container-demo-helper.sh at line 12
  [2.726]→[2.726:1244](∅→∅)
  − if type nix >/dev/null; then

  − # Hack around missing mainProgram attribute in pygments

  − # TODO: use nixpkgs_flakeref when this fix is merged

  − COLORTERM="" TERM="" nix run github:sfrijters/nixpkgs/pygments-mainprogram#python3Packages.pygments -- "$@"

  − elif type pygmentize >/dev/null; then

  − COLORTERM="" TERM="" pygmentize "$@"

  − else

  − echo "pygmentize command not found"

  − return 1

  − fi
  [2.726]

  [2.1244]
  + # Hack around missing mainProgram attribute in pygments

  + # TODO: use nixpkgs_flakeref when this fix is merged

  + COLORTERM="" TERM="" nix run github:sfrijters/nixpkgs/pygments-mainprogram#python3Packages.pygments -- "$@"
• replacement in bash/nix-container-demo-helper.sh at line 25
  [2.1420]→[2.1420:1828](∅→∅)
  − if type nix > /dev/null; then

  − # Hack around missing imagemagick

  − # TODO: use nixpkgs_flakeref when this fix is merged

  − nix run github:sfrijters/nixpkgs/tiv-add-wrapper#tiv -- "$@"

  − elif type tiv >/dev/null; then

  − tiv "$@"

  − else

  − echo "tiv command not found"

  − return 1

  − fi
  [2.1420]

  [2.1828]
  + # Hack around missing imagemagick

  + # TODO: use nixpkgs_flakeref when this fix is merged

  + nix run github:sfrijters/nixpkgs/tiv-add-wrapper#tiv -- "$@"
• replacement in bash/nix-container-demo-helper.sh at line 34
  [2.1941]→[2.1941:2183](∅→∅)
  − if type nix > /dev/null; then

  − nix run "${NIXPKGS_FLAKEREF}#file" -- "$@"

  − elif type file >/dev/null; then

  − file "$@"

  − else

  − echo "file command not found"

  − return 1

  − fi
  [2.1941]

  [2.2183]
  + nix run "${NIXPKGS_FLAKEREF}#file" -- "$@"