Specifying org-babel or org-export output path

Question

I'd like my exports to go into a specific directory. Right now everything is output in the same path as the source file.

There's a very old post with sample code that seems get me part way there:

 (defun org-export-output-file-name-modified (orig-fun extension &optional subtreep pub-dir)
    (unless pub-dir
      (setq pub-dir "exported-org-files")
      (unless (file-directory-p pub-dir)
        (make-directory pub-dir)))
    (apply orig-fun extension subtreep pub-dir nil))

 (advice-add 'org-export-output-file-name :around #'org-export-output-file-name-modified)

However HTML exports don't include images, either static ones or inserted via PlantUML. Latex/PDF export works fine though.

Is there a better option?

Edit:

I tried the following org-export code:

    (require 'ox-publish)
    (setq org-publish-project-alist
          '(("org-notes"
             :base-directory "~/Dropbox/orgmode/"
             :publishing-directory "~/export"
             :publishing-function org-html-publish-to-html
            )

            ("org-static"
             :base-extension "png"
             :base-directory "~/Dropbox/orgmode/"
             :publishing-directory "~/export"
             :publishing-function org-publish-attachment
             )

            ("org" :components ("org-notes" "org-static"))

            )
          )

The images are not being moved to ~/export though.

Edit 2:

Apologies for the paths; I fixed them now. So the issue seems to be Babel and plantuml. I have the following org-file:

#+title: org-export-test

* Meta                                                            :noexport:

Meta section. We don't expect to see it exported due to the ~noexport~ tag.

* Intro

This is an intro section.



* Plantuml section

What we store.

#+begin_src plantuml :file plantuml_dirgram.png

  @startuml
  hide circle
  skinparam linetype ortho

  entity "Table" as EventLog {
          id : number <<generated>>
          --
  }
  @enduml
#+end_src

The PlantUML section contains a directive to output to plantuml_diagram.png in the same path as the org file.

However when I run org-publish-current-file, the HTML file is generated, but the png is not. If I generate the png file manually into ~/Dropbox/orgmode, it's still not copied into ~/export.

Answer 1

I figured it out. I was using M-x org-publish-current-file which does not respect project settings. As soon as I switched to M-x org-publish-current-project or C-e P x the export worked as expected.