Feature request: Support non-binary AUR package using crates.io as source about cargo-aur

[fosskers]

This is a good idea. Let's move forward with it.

The current default is to produce a -bin package after compiling everything, so we'd either have to:

• Add a new flag to do what you're suggesting
• Change the default behaviour to do what you're suggesting, and have the -bin behaviour behind a flag (a breaking change).
• Completely overhaul the CLI to give no preference to one style or the other (e.g. cargo aur bin, cargo aur ?) (also a breaking change)

[nick42d]

I see what you mean about the commands. I see no need to change the existing defaults from what you've set, am happy for this to be a new flag. In terms of an overhall, this could also be a good opportunity to upgrade to clap from gumdrop. Guessing this is possible without a breaking change to the flags.

[fosskers]

Now then: what should the new flag be callled? Off the top of my head:

• --plain
• --source
• --from-crate
• --no-bin

[nick42d]

Took some time to think about this. Combining the two suggestions of --source and --no-bin, we could do;

New flag --source [SourceType] where [SourceType] is project or crates-io. (Default: project = current behaviour)

• This flag would determine where the source code is sourced from.

New flag --no-bin. (Default: false = current behaviour)

• This flag prevents binary build and creates a PKGBUILD that builds from a tarball.

This would allow two new combination --source crates-io which would pull the crates.io version and build it into a binary, --source project --no-bin which would publish based off a github/gitlab tarball. This would also allow for different --source options in future e.g url if we are hosting somewhere other than github/gitlab.

I also wanted to note that to calculate the checksums for the crates.io build, we'll need to actually download the crate. Do you have a preference on how this is implemented, we could use curl, makepkg itself but it's a bit awkward since it needs a pkgbuild first, or a rust library like libcurl or reqwest.

[fosskers]

These are good suggestions. Let's move forward with both of them.

I also wanted to note that to calculate the checksums for the crates.io build, we'll need to actually download the crate. Do you have a preference on how this is implemented

Let's be a good Unix tool and just call curl (or wget) via Rust's Command type. That will minimize Rust dependencies within cargo-aur itself.