Add year to project template variables

[jryans]

This adds the current year as a year variable for project templates. Some license files / headers include the year, so this should make it easier to include those in a template.

[rust-highfive]

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[alexcrichton]

I wonder, is there perhaps a way to learn about the current year without pulling in all of chrono/time?

[jryans]

I wonder, is there perhaps a way to learn about the current year without pulling in all of chrono/time?

Good question! (New to Rust, so I just grabbed chrono at first as suggested by the stdx repo.)

Looks like we can peel away one layer at least and use time only, with something like:

(time::now().tm_year + 1900).to_string()

@alexcrichton, would that be acceptable? I think if we try to dump time as well, we'd have to handle OS specific time formats, so keeping the time dependency seems nice to avoid that work here.

[alexcrichton]

@jryans yeah seems reasonable to me! I suspect time is the "lowest level" for now that's reasonable to start out with

[alexcrichton]

@bors: r+

Thanks!

[bors]

📌 Commit 47221e9 has been approved by alexcrichton

[bors]

⌛ Testing commit 47221e9 with merge 3bc8865...

[bors]

☀️ Test successful - status-appveyor, status-travis
Approved by: alexcrichton
Pushing 3bc8865 to master...