psbanka / go-time

time for go

State of our code:

• We have 4 branches. What do they do?
• main, gia-main, wild-west, 21Jul20-implement-basic-db-save

Useful commands:

Packages!

• We see that we have a package main at the top of some files. What is that about?
• How would you make another module and import it? would it also have package main? at what point would it become package kitties does package main also need func main()?
• what is the work of package what is the work of main
• Does every project have to have one and only one func main() ?

TODOs:

• Look at some kind of "real" projects:

  • look at IAM's thing as an API!
  • Go look at snit code!

• How does configuration within a library work? How do we do config/secrets management (e.g. root database passwords)

• How do we install dependencies?

• How does "github.com/go-sql-drive/mysql" get there? What did we have to do?

• How does package mgmt work in go?

• namespaces: when I import fmt, what did I get?

• what's the difference between

  • import "database/sql"
  • import "github.com/go-sql-driver/mysql"

Uncategorized musings:

- // Question: how do you define constants? can you have immutable constants?

- // TODO: Weird smell: Could this exist outside the main function?
- // Could this be declared in another module and imported?

- defer rows.Close() // how does defer generally work?

// WHat is this? How does it get set? Why do we care?
err = rows.Err()

• Type definitions: can types be declared outside the file they're used?

• how do we run stuff/ compile, etc?

• How do we lint stuff?