• kdb+

  Is there a way to load a q-script from the internet without saving it at disk?

  Posted by vivo on July 30, 2022 at 12:00 am

  Currently if I want to import a q-script, e.g. sp.q, from the internet, I need to save it to disk and then load it.

  system "wget https://raw.githubusercontent.com/KxSystems/kdb/master/sp.q";

  \l sp.q

   

  But if I want to do the l to the url directly without saving sp.q to disk, it doesn’t work:

  \l https://raw.githubusercontent.com/KxSystems/kdb/master/sp.q

   

  If I want to import the q-script without saving it, the only way I can do is to parse sp.q paragraph by paragraph manually:

  myText:system "curl https://raw.githubusercontent.com/KxSystems/kdb/master/sp.q";

  value “” sv myText[til 5]; // import the 1st paragraph
  value “” sv myText[5 _ til 10]; // import the 2nd paragraph

   

  Is there a better way to do this?

  vivo replied 8 months, 1 week ago 2 Members · 1 Reply
• 1 Reply

• 

  davidcrossey

  Member

  July 31, 2022 at 12:00 am

  Hi vivo,

  To load a q script it needs to be loaded from the local disk.

  You could also use .Q.hg to download the file directly into your process with either of the following as examples:

  q)"rn" vs .Q.hg `:https://raw.githubusercontent.com/KxSystems/kdb/master/sp.q 
  /or 
  
  q)ssr[;"rn";""] .Q.hg `:https://raw.githubusercontent.com/KxSystems/kdb/master/sp.q

  However with this approach you’d need a lot of customization per code block to execute it locally.

  If you are downloading the script to the local q process, why would you not store it on disk anyway? For example, re-loading later instead of multiple downloads.

  Kind regards,

  David

Log In to Reply