Add dired-hide-dotfiles recipe

[mattiasb]

Brief summary of what the package does

Hide dotfiles in dired.

Direct link to the package repository

https://github.com/mattiasb/dired-hide-dotfiles

Your association with the package

I'm the maintainer.

Relevant communications with the upstream package maintainer

None needed

Checklist

• [ ✓ ] I've read CONTRIBUTING.md
• [ ✓ ] I've used package-lint to check for packaging issues, and addressed its feedback
• [ ✓ ] I've built and installed the package using the instructions in the README

[syohex]

I think dired-filter provides same feature and more features about filtering. How about ?

Review memo

• This package does not use any Emacs 25.1 features, it works on Emacs 24.1

[mattiasb]

Are there an easy way to check what version is required for your code?

Yeah I tried dired-filter before writing this. It has a rather advanced concept of filtering that felt interesting but kind of got in the way for me. All i wanted was a simple toggle-mode, similar to dired-omit but for dot-files.

[mattiasb]

Pushed a 25.1 → 24.1 Requires-fix.

[purcell]

Are there an easy way to check what version is required for your code?

You'd really need to test with other versions to be sure. But package-lint will at least warn you about uses of functions/libraries added in Emacs versions newer than the one in your Package-Requires header.

[mattiasb]

Yeah that's what I gathered. I don't have easy access to older versions of Emacs though. Personally I'd prefer just going back to the 25.1 require, since that's what I've tested for, but either is fine with me.

[purcell]

Cool, then we're good to merge, but I'd ask you to first remove the redundant :files spec in the recipe entirely please.

[mattiasb]

Ok, so basically:

1. Fix the recipe
2. Go back to 25.1?

[mattiasb]

Done in the package here and force-pushed an updated recipe.

[syohex]

https://github.com/mattiasb/dired-hide-dotfiles/blob/8e5946573b765fc90f3a9d4f7e98572b8b540ee0/dired-hide-dotfiles.el#L62

Is this line regexp "^\\.", not "^\\\." ?

[mattiasb]

I believe you have to escape both the backslash and the dot. That is \\ → \ and \. → ..

[xuchunyang]

@mattiasb The regexp is ^\., in Elisp string, it is written as "^\\.", though "^\\\." is the same, but you don't need (and should not) to escape . in Elisp string, since it is confusing.

(string= "^\\." "^\\\.")
     => t

[mattiasb]

You are correct of course. :)

Fixed!

[syohex]

Merged

[mattiasb]

Thanks! :)

[Boruch-Baum]

@syohex wrote: #4614 (comment)

I think dired-filter provides same feature and more features about filtering. How about ?

This package can result in a TRIPLE over-do, because emacs itself has dired-omit-mode built-in, so a user could potentially end up being confused by the three packages. Package dired-filter does warn that its own omit-mode filter should not be used in conjunction with dired-omit-mode itself.