Matthew Pickering

Multi-component could perform downsweep in order to discover targets

1

At the moment, each cradle has to explicitly list all the targets for that component. This is how most build tools (ie cabal-install hadrian etc) interact already with ghci but...

Read and honour .ghcid files?

1

It is common to want to configure the `--command` when using `ghcid` and the same problem applies to this extension. A simple solution is to support a subset of the...

types1 to provide Traversal1 when the traversal is non-empty

5

It is statically determined if the traversal is definitely non-empty. In this case we could generate a `Traversal1` which can then be used with `first1Of` for example.

``` Prelude Data.Generics.Product GHC.Generics> data T = T { t :: Int } deriving Generic Prelude Data.Generics.Product GHC.Generics> super @(Int, Char) @T ``` ``` :19:1: error: • Could not deduce...

Locks are not properly cleaned up when a flow is interrupted with Ctrl-C

4

I have observed several times that after interrupting a flow that restarting it will lead to no output and the process hanging. I noticed that there were still some lock...

Infinite loop with showFlow

2

Using `showFlow` on a flow which uses `mapA` causes an unproductive infinite loop. ``` showFlow (mapA (arr (+1))) > "....(unproductive loop) ```

listDirContents defeats caching?

4

The first step of my workflow produces a directory of approximately 500 job specifications. The next step then splits this directory up using `listDirContents`. The result is a list of...

Working out what has caused steps to rerun should be easier

3

I have quite a simple flow. The first step is impure as it scrapes the web to find the work that it needs to do. The output from the first...

Documentation is missing for 1.4.0 release on hackage

1

There is no documentation generated for `funflow-1.4.0` because it only builds with `ghc-8.2.2`. It would be good to upload the documentation manually. https://hackage.haskell.org/package/funflow

Some notion of garbage collection is needed. I would like to be able to delete items in the store which weren't used or created by the last run of a...