Add download stats and release dates to mix hex.info

[s3cur3]

This adds download counts and release dates (provided by hex.pm/api/packages/[package_name]) to the mix hex.info [package_name] and mix hex.info [package_name] [version] commands.

Download counts for the overall package info include yesterday, last 7 days, and all-time.

Two decisions I'm not entirely sure of, but happy to revisit:

• Showing the download numbers for the current version (like the Hex.pm website does) would require a second HTTP request, which seemed iffy.
• I wasn't clear on what the "recent" key in the downloads meant (it looks like it might be the last 8 releases?), so I left that out of the download output since I was unable to give a more concrete label for it.

(The formatting on the before/after table below is a little weird... GitHub seems to be adding additional spaces between "paragraphs.")

Resolves #1128

Before	After
$ mix hex.info jason A blazing fast JSON parser and generator in pure Elixir. Config: {:jason, "~> 1.4"} Locked version: 1.4.4 Releases: 1.5.0-alpha.2, 1.5.0-alpha.1, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0, 1.3.0, ... Licenses: Apache-2.0 Links:   GitHub: https://github.com/michalmuskala/jason	$ mix hex.info jason A blazing fast JSON parser and generator in pure Elixir. Config: {:jason, "~> 1.4"} Recent releases:   1.5.0-alpha.2 (2023-07-07)   1.5.0-alpha.1 (2022-10-16)   1.4.4 (2024-07-26)   1.4.3 (2024-06-29)   1.4.2 (2024-06-29)   1.4.1 (2023-07-07)   1.4.0 (2022-09-12)   1.3.0 (2021-12-21)   ... Downloads:   Yesterday: 66 791   Last 7 days: 332 386   All time: 197 507 648 Licenses: Apache-2.0 Links:   GitHub: https://github.com/michalmuskala/jason
$ mix hex.info jason 1.5.0-alpha.2 Config: {:jason, "~> 1.5.0-alpha.2"} Documentation at: https://hexdocs.pm/jason/1.5.0-alpha.2 Dependencies:   decimal ~> 1.0 or ~> 2.0 (optional)   jason_native >= 0.0.0 (optional) Published by: michalmuskala (michal@muskala.eu)	$ mix hex.info jason 1.5.0-alpha.2 Config: {:jason, "~> 1.5.0-alpha.2"} Released: 2023-07-07 Documentation at: https://hexdocs.pm/jason/1.5.0-alpha.2 Downloads: 26 130 Dependencies:   decimal ~> 1.0 or ~> 2.0 (optional)   jason_native >= 0.0.0 (optional) Published by: michalmuskala (michal@muskala.eu)

[ericmj]

This is a great improvement!

What do you think about something like this to format it nicer:

$ mix hex.info jason
A blazing fast JSON parser and generator in pure Elixir.
Config: {:jason, "~> 1.4"}
Recent releases:
  1.5.0-alpha.2 (2023-07-07)
  1.5.0-alpha.1 (2022-10-16), 1.4.4 (2024-07-26)
  1.4.3 (2024-06-29)
  1.4.2 (2024-06-29)
  1.4.1 (2023-07-07)
  ...


Downloads:
  Yesterday: 20 120
  Last 7 days: 362 042
  All time: 196 976 983


Licenses: Apache-2.0
Links:
  GitHub: https://github.com/michalmuskala/jason

[s3cur3]

@ericmj, done! In 4479112, I've:

• added a thousands separator for both the list and specific releases, and
• moved the "recent releases" to each print on their own line.

One thing I'm having trouble with is stubbing out the downloads in test. Ideally I'd do so in test/mix/tasks/hex.info_test.exs:16 (test "package"), but I can't figure out how I'd call into Hexpm to simulate thousands of downloads. It does seem to work as-is when I test manually against the real API, though.

[ericmj]

You can use bypass to mock a hexpm response, there are existing examples of that in the tests.

[s3cur3]

Ah, wonderful! Added a couple tests in 67f6180 👍

[ericmj]

This is great, thank you! 💜