Fuzzy file finder (:ff)

Interactive file finder over the current working directory.

Usage

:ff             open with empty query — lists everything
:ff foo         filter to paths matching "foo"
:ff src lex     multi-token AND: paths matching BOTH "src" and "lex"
:ff!            rebuild the index, then open empty
:ff! query      rebuild the index, then filter

The popup updates live as you type. The selected row is shown inverted. Keys:

The current cursor position is pushed onto the jumplist before the new file opens, so <C-o> always brings you back to where you started the search.

Scoring

Behind the scenes:

• Walks the working directory with the ignore crate, so .gitignore, .ignore, and hidden-file rules from git config all apply automatically.
• Skips files over 50 MB and caps the index at 100k entries.
• Each query is split on whitespace into AND-tokens. Every token has to match (fuzzy, via SkimMatcherV2); the scores are summed and a small penalty proportional to path length is subtracted so shorter paths float to the top.

Indexing and :ff!

The index is built lazily on first :ff and reused for subsequent invocations within the same session. Use :ff! to bust the cache when you've added new files outside the editor and don't want to restart.

The bang takes effect once — the moment the input transitions into the banged form. Typing more characters after :ff! doesn't keep rebuilding the index; it just refines the query against the freshly rebuilt one.

Why not call it :fzf?

fzf is a separate, well-known product. :ff is rtdvi's built-in finder; it doesn't shell out and doesn't depend on fzf being installed.

Implementation

• src/fzf.rs — Index::build (the walker) and search (the scorer).
• src/mode/command.rs — the cmdline integration: parse_ff_query, ff_refresh_if_active, ff_nav, ff_accept_and_open.
• The popup itself is rendered alongside the regular completion popup in ui/cmdline.rs.