Support for excluding certain tags

[peterhoeg]

Is your feature request related to a problem? Please describe.

When using cheat sheets made by somebody else, there might be large portions that you're not interested in. As an example, using denisidoro's cheats but not caring about concourse CI. It would be awesome to be able to simply exclude everything matching the concourse tag.

Describe the solution you'd like
Having a config file with the list of excluded tags.

Describe alternatives you've considered
An option is to either provide the excluded tags on the command line or via an env var. The former would be annoying, but the latter is perfectly fine.

[welcome]

Thanks for opening your first issue here! In case you're facing a bug, please update navi to the latest version first. Maybe the bug is already solved! :)

[denisidoro]

One solution is to use something like this:

alias n="navi --query '^concourse '"

And then call it by n

Another one is to simply delete some of the downloaded .cheat files.

I implement to add a NAVI_FILTER env var which will act like a grep when processing the input files, so I'll leave this issue open.

[peterhoeg]

Another one is to simply delete some of the downloaded .cheat files.

That's exactly what I did, but it would be great to still simply pull from 3rd party repos indiscriminately and just filter out later, so your env var sounds great, thank you!

navi is awesome!

[ngirard]

Hi @denisidoro,

what is the appropriate command-line semantics for filtering tags ? I had a look at the PR and the commit log, but couldn't figure it out.

[denisidoro]

I still need to document it. Building from master, you can use it as follows:

navi --tag-rules='git,!branch' 

This will show snippets which contain the git tag but not the branch tag

[ngirard]

Nice ! Thanks for your work !

[papanito]

If I want to exclude all related to fly I tried navi --tag-rules='!fly', but then navi shows 0/0.