Don't check for port presence for "upload using programmer" unless it's used.

[damellis]

Some programmers (e.g. the USBtiny) don't use a serial port (or network port) but upload via native USB communication. If you do an "upload using programmer", this will cause a problem because Sketch.upload() always checks for the presence of the currently selected port, even if it's not needed for the upload to work. (This isn't a problem when burning the boot loader, because there's no explicit check for the presence of the serial port.)

I tried with 1.5.6 and the ide-1.5.x branch, on Mac OS X (10.9.2).

BTW, this bug is a problem for me because it breaks uploading to the ATtiny using the Tiny AVR Programmer. I'm not using a boot loader, so upload using programmer is the only way to get a sketch onto the microcontroller.

[matthijskooijman]

I ran into this problem with my JTAGICE3 as well.

Seems like we could use the communication attribute from programmers.txt to detect this case:

avrisp.communication=serial
usbasp.communication=usb

[Lauszus]

Please also see: #1791.

[matthijskooijman]

Ah, this issue is a complete duplicate of that one, so this issue should probably be closed.

[damellis]

Okay, closing as a duplicate of #1791.