The ** pattern doesn't match files starting with dot symbol

[arrowd]

I have data/.foo file as well as data/.hg directory in my Hakyll project. The following rule

match "data/**" $ do
  route idRoute
  compile copyFileCompiler

correctly copies all files and directories recursively, except .foo and .hg.

[Minoru]

I think that's the correct behaviour. Since the pattern is specified as a string literal, IsString instance applies and calls fromGlob. There is no indication in the docs, but I believe globs are a Unix concept, and those are documented to only match filenames that do not start with a dot.

In order to match both, I think you'll have to use something like "data/**" .||. "data/**/.*" (I didn't test this though).

[arrowd]

Unfortunately, data/**/.* didn't work too.

[Minoru]

How about fromRegex? Something like match (fromRegex "^data/.*") should match everything under the "data" directory, I think.

[arrowd]

Nope, the regex works the same as glob with two stars. I guess, the problem lies deeper, in the filesystem visiting code.

[Minoru]

That'd be Hakyll.Core.Provider. I don't see anything suspicious in the code: it uses System.Directory.getDirectoryContents which returns everything, and it filters out just . and ... I won't dig deeper right now, so if you take a look and discover something, please share!

[Minoru]

@arrowd Did you manage to figure out what's wrong with the Provider?

[arrowd]

Not yet, but it is on my TODO.

[arrowd]

The problem stems from the default Configuration, the ignoreFile field:

    ignoreFile' path
        | "."    `isPrefixOf` fileName = True
        | "#"    `isPrefixOf` fileName = True
        | "~"    `isSuffixOf` fileName = True
        | ".swp" `isSuffixOf` fileName = True
        | otherwise                    = False

Overriding it for my site fixes the problem. I don't think that default should be changed, as it might suddenly make VCS directories visible for users.

[Minoru]

Oh! So simple… Thank you for writing back! 👍