Add find command

[Theodus]

using the Cloudsmith package querying API. This command should return a limited set of the results from Cloudsmith.

[rhagenson]

I propose this command work in the following manner.

ponyc and Markdown table formatting used for example. This should work the same for any core Pony tool on Cloudsmith and precise formatting at CLI may change (i.e., no header, tab separated, command separated, whatever makes the most sense following discussion).

ponyup find <tool>

Return the most recent versions in each channel for current default platform.

Options

Name	Argument	Function
a	N/a	Returns versions for all platforms
n	U8	Returns the latest n versions
platform	String	Overrides the default platform

Minimal return: ponyup find ponyc

Tool	Channel	Version	Platform
ponyc	release	0.35.1	x86_64-linux-gnu
ponyc	nightly	20200722	x86_64-linux-gnu

Note it is sorted release first.

W/ --platform option: ponyup find --platform=x86-64-apple-darwin ponyc

Tool	Channel	Version	Platform
ponyc	release	0.35.1	x86-64-apple-darwin
ponyc	nightly	20200722	x86-64-apple-darwin

Note it is sorted release first.

W/ -a option: ponyup find -a ponyc

Tool	Channel	Version	Platform
ponyc	release	0.35.1	unknown-linux-musl
ponyc	nightly	20200722	unknown-linux-musl
ponyc	release	0.35.1	x86-64-apple-darwin
ponyc	nightly	20200722	x86-64-apple-darwin
ponyc	release	0.35.1	x86_64-linux-gnu
ponyc	nightly	20200722	x86_64-linux-gnu
...	...	...	...

Note that it is sorted by platform.

W/ -n option: ponyup find -n 2 ponyc

Tool	Channel	Version	Platform
ponyc	release	0.35.1	x86_64-linux-gnu
ponyc	release	0.35.0	x86_64-linux-gnu
ponyc	nightly	20200722	x86_64-linux-gnu
ponyc	nightly	20200721	x86_64-linux-gnu

Note it is sorted from newest to oldest version.

W/ -n and -a: ponyup find -a -n 2 ponyc

Tool	Channel	Version	Platform
ponyc	release	0.35.1	unknown-linux-musl
ponyc	release	0.35.0	unknown-linux-musl
ponyc	nightly	20200722	unknown-linux-musl
ponyc	nightly	20200721	unknown-linux-musl
ponyc	release	0.35.1	x86-64-apple-darwin
ponyc	release	0.35.0	x86-64-apple-darwin
ponyc	nightly	20200722	x86-64-apple-darwin
ponyc	nightly	20200721	x86-64-apple-darwin
ponyc	release	0.35.1	x86_64-linux-gnu
ponyc	release	0.35.0	x86_64-linux-gnu
ponyc	nightly	20200722	x86_64-linux-gnu
ponyc	nightly	20200721	x86_64-linux-gnu
...	...	...	...

Note it is sorted by platform then newest to oldest version.

---

[Theodus]

@rhagenson that seems good to me.