Quote variables, use $@ and $array[@] instead of $*, typeset some integers, remove unneccesasary binary invocation, use shell features when possible, remove `eval`, &c.
* lib/helpers: use `$OSTYPE` instead of `$(uname)`
* plugins/osx: use `$OSTYPE` instead of `$(uname)`
* plugins/boot2docker: use `$OSTYPE` instead of `$(uname)`
* plugins/python: use `$OSTYPE` instead of `$(uname)`
* plugins/base: use `$OSTYPE` instead of `$(uname)`
Alsö, use `[[` instead of `[` as the former has less insane argument handling being shell syntax rather than a builtin command that must emulate being a real binary
* completion/brew: use `$OSTYPE` instead of `$(uname)`
* completion/git: use `$OSTYPE` instead of `$(uname)`
Alsö, use `[[` instead of `[`.
* completion/fabric: use `$OSTYPE` instead of `uname`
* theme/demula: use `$OSTYPE` instead of `$(uname)`
* theme/rana: use `$OSTYPE` instead of `$(uname)`
Out of the box, `curl` reports success (via exit code) even if the
server returns an error, e.g. _429 Too Many Requests_ which was
sometimes the case with `http://myip.dnsomatic.com`. So, errors went
undetected.
There is the `--fail` switch which enables us to use the exit code the
way we need:
> -f, --fail
> (HTTP) Fail silently (no output at all) on server
> errors. This is mostly done to better enable scripts etc
> to better deal with failed attempts. In normal cases
> when an HTTP server fails to deliver a document, it
> returns an HTML document stating so (which often also
> describes why and more). This flag will prevent curl
> from outputting that and return error 22.
Use it to make the `myip()` deliver results reliably.
Some functions were specific to OS X, but were defined in the `base` plugin. I have moved them to the `osx` plugin:
* pman
* pcurl
* pri
As for `pcurl`, the `osx` plugin already had an existing `prevcurl` function, which was doing the same thing. I've aliased `pcurl` to simply call `prevcurl` to avoid breaking existing installations.
As far as I know the `open -fa $PREVIEW` thing only works on OS X, which means that these functions have only worked on OS X anyway.