You can probably use custom agenda commands for this. See the documentation for the org-agenda-custom-commands and the corresponding section in the manual [1]. You can set the org-agenda-files and org-agenda-text-search-extra-files to point to the old project for some custom search.
For instance, I use --8<---------------cut here---------------start------------->8--- #+begin_src emacs-lisp (setq org-agenda-custom-commands (quote ( ... Some custom commands ("N" . "Search in notes.org") ("Nw" search "" ((org-agenda-files '("~/org/notes.org")) (org-agenda-text-search-extra-files nil))) ("Nt" tags "" ((org-agenda-files '("~/org/notes.org")) (org-agenda-text-search-extra-files nil))) ... Some more custom commands ))) #+end_src --8<---------------cut here---------------end--------------->8--- This allows-me to perform a search only in my org/notes.org file without actually changing my org-agenda-files. -- Darlan [1] - http://orgmode.org/org.html#Custom-agenda-views At Sat, 23 Jul 2011 19:36:16 +0200, suvayu ali <fatkasuvayu+li...@gmail.com> wrote: > > Hi Orgers, > > I know that I can use `org-search-view' or `org-occur-in-agenda-files' > from the agenda to search for some string on all my agenda files. And I > can customise `org-agenda-text-search-extra-files' to include extra text > files. > > These search functions are quite powerful in general, so I was wondering > if these functions can be used to do a search restricted to say a list > of files or to org files within a directory. If I could wrap these in my > own functions, even that would be amazingly helpful. > > To illustrate a use case, I recently switched research projects[1]. I > keep all my files related to the OLDPROJ under ~/org/OLDPROJ/ and all my > files related to the NEWPROJ under ~/org/NEWPROJ/[2]. Now when I perform > a text search I want to include only the NEWPROJ along with my agenda > files (located in ~/org/). Now I would like to have an interface (either > through the agenda menu or through some interactively called function) > to perform a search _only_ on the OLDPROJ files when necessary. Is that > possible? > > Any hints as to how I can achieve this would be amazingly helpful. > Thanks. :) > > > Footnotes: > > [1] I am using the word project rather loosely to describe a > super-project with several sub-projects which are rather significant > by themselves. > > [2] These project directories have their own structure based on > sub-projects and other needs. > > -- > Suvayu > > Open source is the future. It sets us free. >