Create –ignore-path

Users have been dissatisfied with --ignore-dir and --ignore-file. Here are some common “bug reports”

• --ignore-dir=foo/bar doesn’t ignore foo/bar at all (GH ack2#291)
• --ignore-dir=foo ignores all directories named foo, not just the one at the root of the search (GH ack2#216)
• --ignore-dir=foo foo -f doesn’t search foo/ (GH ack2#492)
• No way to ignore a file in a folder (GH ack2#479)
• --ignore-dir doesn’t implement all filters (GH ack2#42)
• What’s the right behavior for --ignore-dir=foo, --noignore-dir=bar, --ignore-dir=baz, wrt. foo/bar/baz/file.txt

Also consider GH ack2#330, and consider that you could be anywhere in a project but still source the --ignore-dir=./foo rule from an ackrc a few directories above. Are we preparing to teach ack about the notion of a project root? Also, consider --noignore-dir

Questions to consider

• --ignore-path will ignore paths as well as directories. But then relative to what? Current directory? That means an –ignore-path` in an .ackrc isn’t useful.

• Do we make the relativeness based on where the directive is? Is an --ignore-path in a project-level .ackrc relative to that file? And an --ignore-path from the command-line is relative to Cwd?

• If I have --ignore-dir=test in my .ackrc, and I do ack $term test, what happens?