feat: nightly updater

[vansangpfiev]

Describe Your Changes

Support nightly updater. The binary is built with flag -DCORTEX_VARIANT="nightly"
Syntax

cortex update -v <cortex_version>

default is the latest nightly

Update logic:

• Download nightly binary, it is in tar format
• Extract binary file
• Stop the server if it is running
• Rename the current binary cortex -> /temp/cortex_temp
• Copy new binary to be the current binary
• Clean resources: remove all downloaded data
• Restore binary if encounter any issue

Fixes Issues

• Closes ci: Updater for nightly release #1170

[namchuai]

✅ looks good to me! Thank you!

[dan-menlo]

@vansangpfiev Thanks for the Updater PR:

• We need more test coverage for logic covering Nightly, Beta update download origin
• I think this is the most likely failure point a year from now

[vansangpfiev]

@vansangpfiev Thanks for the Updater PR:

• We need more test coverage for logic covering Nightly, Beta update download origin
• I think this is the most likely failure point a year from now

As I mentioned above, the logic for variants should be added in CIs, not unit tests

[dan-menlo]

@vansangpfiev Thanks for the Updater PR:

• We need more test coverage for logic covering Nightly, Beta update download origin
• I think this is the most likely failure point a year from now

As I mentioned above, the logic for variants should be added in CIs, not unit tests

I see - as long as it's covered, I agree. Lgtm

[dan-menlo]

Lgtm - pending Version tests in CI