Add the build date to the reported version. #21957

[brson]

rustc --version says

rustc 1.0.0-dev (d0e82a68a 2015-02-05 14:38:56 -0800) (built 2015-02-11)

[brson]

cc rust-lang/cargo#1292

[rust-highfive]

r? @nick29581

(rust_highfive has picked a reviewer for you, use r? to override)

[brson]

This is my attempt to solve the confusion around the date reported by --version. Open to other ideas. Needs to be merged with the corresponding Cargo PR.

[nrc]

lgtm, you can take that as r+ if you like or wait to see if anyone has a better idea...

[brson]

I'd like to get rid of the useless '14:38:56 -0800' part of the commit date but git doesn't seem to support printing just the date.

[iKevinY]

It seems like you can print just the date using git log -1 --date=short --pretty=format:'%cd'.

[brson]

@iKevinY Thanks for the tip!

[brson]

I've updated the PR to not put the time and tz offset in the version.

[brson]

@bors: r=nick29581 rollup

[bors]

🙀 You have the wrong number! Please try again with effad62.

[brson]

@bors: r=nick29581 effad62 rollup