hack3ric / abel Goto Github PK

Current service updating model requires removing original service first, which is not ideal when error occurs and the original service cannot be recovered.

This problem may be solved by attempting to create service first and then replace the original one.

Provides three interfaces: Stream, Sink and Transform. These enable cryptography, compression and many other use cases.

local stream = {
  read = function(self)
    return "some bytes"
  end
}

local sink = {
  write = function(self, bytes)
    -- write `bytes` to some place
    return how_many_bytes_read
  end
}

local transform = {
  transform = function(self, bytes)
    return "some transformed bytes"
  end
}

• Replace current concrete type Stream with abstract interface and concrete implementations
  • Define implementation rules
• Allow using stream as body
  • Rust side: use Body::channel, return the body, and then spawn a new task to drain the stream
• Helper functions
  • Pipe stream into sink, wrap stream or sink with transform, etc.

Allows requireing modules over HTTP.

local baaz = require "foo.bar.baaz @https://getabel.org/x/mymodule/0.1.0"
local mymodule = require "@https://getabel.org/x/mymodule/0.1.0"

• Implement MVP
  • You can use it right now, but not guaranteed to work as you would expect
• Caching
• Repository
  • Basically a file server, but need to specify the file structure
• URI alias
  • Specify in service's config file?

Env Info

• Operating System: Arch Linux x86_64 with 5.17.1-zen1-1-zen
• rustc Version: 1.59.0
• hive Version: master branch, commit ba132f1

Error

To reproduce, upload a lua script via curl:

curl localhost:3000/services/hello -X PUT -F [email protected] | jq

Server returns:

{
  "error": "I/O error",
  "detail": {
    "msg": "Invalid cross-device link (os error 18)"
  }
}

And the log of server shows:

 ERROR hive_server::handle > Invalid cross-device link (os error 18)