feat: --async option for compiled binary (CLI)

[jjangga0214]

Hi!

When using compiled binary (by cargo install dsync, not cargo add dsync), --async option is not there.
I hope it's to be supported.

What do you think?

[hasezoey]

When using compiled binary (by cargo install dsync, not cargo add dsync), --async option is not there.

you need to compile it with the feature enabled, async is not a default feature

use cargo install dsync --features async

[jjangga0214]

Yes, but that does not mean it will create async code, in my experience.
And the freedom to choose on Runtime is still cool, IMHO.

[hasezoey]

i dont quite understand what this issue is about, so some general information:

for async code to be generated, you need to:

• enable feature async at compile time
• enable via flag --async at runtime

dsync/src/bin/main.rs

Lines 57 to 60 in 007ace8

	/// uses diesel_async for generated functions; see https://github.com/weiznich/diesel_async
	#[arg(long = "async")]
	#[cfg(feature = "async")]
	pub use_async: bool,

[jjangga0214]

Oh, I checked --help but missed reading --async.
Probably I thought I did cargo install dsync --features async but actually cargo install dsync.
Thanks for the clarification!