Ability to show only head & tail of large logfiles

[jknight]

It'd be nice if buildbot had the ability to only show the first N lines, and/or last N lines of ginormous logfiles. As the error at the end is generally all you want to see, having to download 3MB of logfile first is sometimes kind of annoying. :)

[warner]

hm, how can we present this on the waterfall page cleanly? Each logfile's link turns into three. Or maybe only offer those links for files above a certain size? Like.. 1MB? Something like:

stdio (H) (T)

?

[jknight]

Both those suggestions sound good. Or perhaps make the log link just go to a single head&tail page, with then a link on that page to view the full log. I'm not sure what should happen with a log that's in progress -- I guess it should be like tail -f: show the tail, and then continue feeding the in-progress data.

[wadeb]

One option would be to automatically divide large log files into pages, with an index at the top and bottom:

<< < 1 2 3 4 5 > >> | Full Log | Tail Log | Lines Per Page [ 50]

[dustin]

Seems like this could be fixed with an AJAX-y logfile viewer?

[dustin]

This will be more easily done in the JSON frontend