Nope. That's not it.
I think that's what Ctrl+J is doing anyway, b/c on a 100k js file, ~3500 lines, both take the same amount of time, over 10 seconds, and peg ST3 CPU at 25% for me. (Win7, 3ghz, 6gb). It must be re-writing the whole string every time, after every line.
Nope, pretty sure you're gonna have to make yourself a "StringBuilder". That's the fastest way I know of to do it.
For instance, the following simple demo code reads in the 100k file, splits it on linesep, and re-joins it with empty strings, and writes it out.
It runs in about .5 seconds.
Running as a plugin would be even faster, b/c you'd have no device I/O time. You'd just be using the buffer contents.
Here's the code (Python 3.3.3):
f = open('C:/NodeJS/Apps/xxx_ServerX/build/xxServer/xxServer.js', 'r')
fil = f.read()
#As a plugin, just get the active window buffer contents into a string variable...
filSplit = fil.splitlines() #<--- These 2 lines are what you need.
filJoined = ''.join(filSplit) #<--- ( '' ) is 2 single-quotes, not a double-quote
#then write it back to the buffer
f = open('jointest.txt', 'w')
I did a package search for something that would do this and did not find anything, but I did find this:
If you're not up on writing plugins, (and I'm not, at the moment - been too long), then you might be able to just install that utility and then kludge the 2-line "StringBuilder" code into it, (by copying one of the other functions in the utility), and have yourself a quick out.
(Unless anyone else knows of one.)
All that being said, you do know there are components/libraries like combo-izers and minifiers that already do this kind of thing for you, right?
For instance, I use "shifter" to minify JS files... https://github.com/yui/shifter
That sort of thing.
Hope this helps.