Nick Dokos <nicholas.do...@hp.com> writes:
> (message "foo") prints to stderr in batch mode, which is an unbuffered
> stream. E.g ``emacs --batch -l foo.el'' with foo.el containing
> (message "foo")
> (sit-for 10)
> prints out ``foo'' and then sits for 10 seconds before exiting.
Hi, Nick.
It seems you are right. I initially guessed that -batch might have
Emacs to allocate an output buffer, or at least do it when output is not
directed to a terminal. But it even works as you say if I do:
emacs 2>&1 --batch -l foo.el | cat
This is more similar to my actual usage, which really is:
[...]
write = sys.stderr.write
for line in os.popen('emacs 2>&1 -batch'
' -l ~/fp/notes/publish.el'
' -f org-publish-all'):
write(repr(line) + '\n')
sys.stderr.flush()
[...]
The write(...) and the flush() are only there for debugging: I wanted to
see if the lines are delivered timely or not (and I'm seemingly getting
the Emacs output in one blow). I just do not understand why the
behavior differs between the "... | cat" line and the Python excerpt.
I'm surely missing something somewhere... Sigh!
> Also, don't you get messages for every file?
Yes, and these messages usually say: "Skipping unmodified file ..."
On the "entertaining side", this is too much noise; I would have
preferred a mere line per project. Not a big deal anyway for me. On
the "debugging side", this is sufficient indeed.
> I would recommend looking at the worg publishing mechanism in
> general. See
> http://orgmode.org/worg/worg-setup.html
> particularly the sections entitled
> - What .emacs.el file is used on the server?
> - I want it for my own server!
Hey, thanks for this pointer, Nick; there seems to be useful hints or
tricks in there. I'm saving it for later study.
I plan to progressively convert more of my previous pages to Org format,
and use it more for new pages too, as Org format and mode are so nice
for maintenance. I plan to retain a few reStructuredText sources as
such, as reST also has it virtues for publishing. I also hope that Org
publishing offers me opportunities for experimenting (OK, OK: toying!)
with new HTML/CSS avenues, I'm not familiar enough to be sure yet.
François
