Java has a file watch API to avoid polling. Stuart Sierra uses it to good effect in lazytest.
On Dec 2, 9:14 am, Alex Osborne <a...@meshy.org> wrote: > viksit <vik...@gmail.com> writes: > > What would you recommend as the best method to tail a file using > > Clojure? Are there any built in functions in contrib or core that > > allow a program to read the last line of a file as it is appended to? > > If not - how do people solve a problem like this? > > > My aim is simple - I've got a log file and I'd like to parse it as it > > gets appended to. > > Tail just polls the file every 1 second or whatever (it's configurable > -s option) and check's if the file's length has changed. You can do > this yourself easily enough. > > Some discussion here (it's Java, but you'd do exactly the same in Clojure): > > http://stackoverflow.com/questions/557844/java-io-implementation-of-u... > > When I've had this problem myself (on unix), I've just been lazy and > implemented it by doing: > > tail -f somefile.log | java ... > > Or shelling out to `tail' from within the program. Ugly perhaps, but I > know GNU tail behaves the way I want when the file is truncated and > such. :-P -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
