dhall-haskell

Maintainable configuration files

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13Mentions

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Maintainable configuration files

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This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 9:28:18 AM UTC.

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Mentions over time

HN mentions by year13 dated mentions

Observed mentions: 2016-12-05 21:15:18 UTC to 2022-11-02 17:13:44 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

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Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	2	1	1
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	3	0	3
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	1	1	0
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	1	0	1
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	0	0	0
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	2	0	2
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	4	0	4

What Hacker News says

4 sources

hither_shores·Nov 2, 2022

You shouldn't need to install any dependencies beyond `base` for hello world in Haskell: ``` module Main where main :: IO () main = putStrLn "Hello, world!" ``` If you mean installing Dhall's dependencies (https://github.com/dhall-lang/dhall-haskell/blob/master/dhal...), those aren't too crazy, but they're definitely not all "beginner level". Template Haskell in particular is quite heavyweight.

In Functional programming should be the future of software

rowanG077·Jun 8, 2022

No I didn't understand every sub-function in this function. That isn't necessary to get an idea of what a function does. All of your questions can be answered incredible quickly though using https://hoogle.haskell.org/ > What does Optics.rewriteOf do? Hoogling show this is an alias of https://hackage.haskell.org/package/lens-5.1.1/docs/Control-.... > What's the purpose of Lint.useToMap? Hoogle again shows https://hackage.haskell.org/package/dhall-1.41.1/docs/Dhall-.... If your function is not indexed you can look at what is qualified as `Lint` and look it up that way. > How about D.subExpressions ? How does that composition work with the loop function? https://hackage.haskell.org/package/dhall-1.41.1/docs/Dhall-... All nicely documented... I'm not sure what you mean by composition with the loop function. First the loop function is execute

Read the rest

d and then afterwards over the result the expression in the first argument to fmap is applied. There is no weird interaction going on here. It's just run this over the result of the loop function if it didn't produce an error. > Even better. How would you go about finding the source code containing the definition of the function `D.subExpressions` ? Use hoogle or just look at the imports at the top of the file. Just like any other programming language. Or even better, use the language server to find it for you. For example there is an import here: `import qualified Dhall.Core as D` Now you know that function is in the `Dhal.Core` module. Going to that module you see the function is not actually there but is exported from the `Dhal.Syntax` module. It took me literally 5 seconds to find it: https://github.com/dhall-lang/dhall-haskell/blob/master/dhal...

In Dhall: A Gateway Drug to Haskell

spion·Jun 7, 2022

Ok, lets be specific. Lets write a comment to explain this function: https://github.com/dhall-lang/dhall-haskell/blob/master/dhal...

In Dhall: A Gateway Drug to Haskell

infogulch·Feb 19, 2022

I haven't tried it but apparently you can compile to Nix from Dhall: > You can use this compiler to program Nix using the Dhall language. This package targets people who wish Nix had a type system. https://github.com/dhall-lang/dhall-haskell/tree/master/dhal...

In Nix: An idea whose time has come