myers difference to git format

output

  # Account settings
- put("/account/meta", MetaController, :update)
- post("/account/avatar", MetaController, :upload_avatar)
  post("/account/cover", MetaController, :upload_cover)
+ put("/account/settings", SettingController, :update)
+ post("/account/reset_pass", UserController, :reset_pass)
  
  # Mod specific routes
  # TODO move to an admin protected scope
  post("/moderation/ban", ModerationController, :ban_user)
  post("/moderation/post/update_tags", ModerationController, :update_tags)
  
+ 
+ 
  post("/friends", FriendController, :create)
- delete("/friends/:id", FriendController, :destroy)
- delete("/friends/name/:name", FriendController, :destroy_by_name)
+ post("/friends/name", FriendController, :create_by_name)

test.exs

original = """
# Account settings
put("/account/meta", MetaController, :update)
post("/account/avatar", MetaController, :upload_avatar)
post("/account/cover", MetaController, :upload_cover)

# Mod specific routes
# TODO move to an admin protected scope
post("/moderation/ban", ModerationController, :ban_user)
post("/moderation/post/update_tags", ModerationController, :update_tags)

post("/friends", FriendController, :create)
delete("/friends/:id", FriendController, :destroy)
delete("/friends/name/:name", FriendController, :destroy_by_name)
"""

modified = """
# Account settings
post("/account/cover", MetaController, :upload_cover)
put("/account/settings", SettingController, :update)
post("/account/reset_pass", UserController, :reset_pass)

# Mod specific routes
# TODO move to an admin protected scope
post("/moderation/ban", ModerationController, :ban_user)
post("/moderation/post/update_tags", ModerationController, :update_tags)



post("/friends", FriendController, :create)
post("/friends/name", FriendController, :create_by_name)
"""


split_text = fn text -> String.split(text, "\n") end

rebuild_text = fn diff ->
  Enum.reduce(diff, "", fn {type, lines}, text ->
    case type do
      :eq -> text <> "\n  " <> Enum.join(lines, "\n  ")
      :ins -> text <> "\n+ " <> Enum.join(lines, "\n+ ")
      :del -> text <> "\n- " <> Enum.join(lines, "\n- ")
    end
  end)
end

List.myers_difference(split_text.(original), split_text.(modified))
|> rebuild_text.()
|> IO.puts()