Create GIFs from Android devices (pronounced "gif cap")

My machine is Mac OS 10.12.2 with Homebrew installed, in particular, the coreutils package, which provides the GNU mktemp. When I execute gifcap, the mktemp call fails, but I get the following:

$ gifcap
mktemp: too few X's in template ‘screencap’
mv: missing destination file operand after '.mp4'
Try 'mv --help' for more information.
mktemp: too few X's in template ‘palette’
mv: missing destination file operand after '.png'
Try 'mv --help' for more information.
basename: missing operand
Try 'basename --help' for more information.
Recording, end with CTRL+C
Unable to open '/sdcard/': Is a directory
[  0%] /sdcard/Download/f3de0bee-7693-4018-ac0e-66b2adf52e2e.apk: 36%^C

This ends up executing:

adb pull /sdcard

which starts to pull everything off your device!

I recently tried to install Wine with Homebrew but at the end of it it gave me this error:

==> ./configure --prefix=/usr/local/Cellar/sane-backends/1.0.25_1 --localstatedi ==> make Last 15 lines from /Users/SelzAt/Library/Logs/Homebrew/sane-backends/02.make: tail: /Users/SelzAt/Library/Logs/Homebrew/sane-backends/02.make: No such file or directory Error: No such file or directory - /Users/SelzAt/Library/Logs/Homebrew/sane-backends/config.log

Can someone tell me what the problem is or how I can solve it?

On my Mac with Homebrew coreutils installed, the script fails when calling mktemp because the GNU version requires the XXX characters in its template. From its manpage:

Create a temporary file or directory, safely, and print its name. TEMPLATE must contain at least 3 consecutive 'X's in last component.

However, the OS X version of mktemp seems to treat the -t argument as a prefix. See https://unix.stackexchange.com/questions/30091/fix-or-alternative-for-mktemp-in-os-x for more information.

In any case, I think appending XXX to the end of the argument, allows compatibility with both GNU and OS X versions of mktemp

When using this line to install ffmpeg I get the following two warnings:

Warning: ffmpeg: --with-ffplay was deprecated; using --with-sdl2 instead!
Warning: ffmpeg: this formula has no --with-libquvi option so it will be ignored!

And an additional question, do we really need all these codecs? I don't see them being used explicitly and am especially wondering about x265 and the audio codecs recommended.

Especially since neither the README nor the homebrew formula mention that you need to install it in that way.

PS: Thanks for the script, really makes it a lot easier to share via Slack etc!