Check for correct library naming in Travis CI

[theotherjimmy]

Description

Preventative maintenance for exporters. The build tools are able to handle
incorrectly named libraries, but the exporters can't. This PR adds a CI check
in Travis CI that will prevent incorrectly named libraries from coming in.

Status

ready

Testing

• Just Travis CI is fine

[theotherjimmy]

Dang @0xc0170 That was fast!

[theotherjimmy]

@0xc0170 Apparently, I was not done yet

[theotherjimmy]

the red x on 3161cf3 was Travis auto-canceling itself.

[theotherjimmy]

@sg- Looks like it's passing. LGTM.

[theotherjimmy]

Example of what the error will look like:

$ find -name "*.a" -and -not -name "lib*" | tee BUILD/badlibs | sed -e "s/^/Bad library name found: /" && [ ! -s BUILD/badlibs ]
Bad library name found: ./targets/TARGET_Realtek/TARGET_AMEBA/TARGET_RTL8195A/device/TOOLCHAIN_IAR/rom.a
$ echo $?
1

[bridadan]

No need to fire morph on this since its just touching travis stuff. LGTM.

[bridadan]

@theotherjimmy @0xc0170 Marked as ready for merge just to prevent people from adding morph commands. Feel free to take the tag off if it's not ready yet.

[theotherjimmy]

@bridadan I need to add IAR library checking. just a sec.