telescope-frecency.nvim/README.md
2021-01-14 02:39:13 +01:00

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# telescope-frecency.nvim
An implementation of Mozillas [Frecency algorithm](https://developer.mozilla.org/en-US/docs/Mozilla/Tech/Places/Frecency_algorithm) for [telescope.nvim](https://github.com/nvim-telescope/telescope.nvim).
## Frecency: sorting by "frequency" and "recency"
Frecency is a score given to each unique file loaded into a Neovim buffer.
On each load a timestamp is recorded to a database. The score is calculated using the age of each of the timestamps and the amount of times the file has been loaded:
Recency_score =
| Timestamp age | Value |
| -------- | ---------- |
| 4 hours | 100 |
| 1 day | 80 |
| 3 days | 60 |
| 1 week | 40 |
| 1 month | 20 |
| 90 days | 10 |
```
final_score = frequency * recency_score / max_number_of_timestamps
```
## WIP
TODO
- [ ] Implement sorter based on frecency score
- [ ] Check file entries are valid via async job on VimClose
<img src="https://raw.githubusercontent.com/sunjon/images/master/gh_readme_telescope_frecency.png" height="600">
## Requirements
- [telescope.nvim](https://github.com/nvim-telescope/telescope.nvim) (required)
- [sql.nvim](https://github.com/tami5/sql.nvim) (required)
Timestamps and file records are stored in an [SQLite3](https://www.sqlite.org/index.html) database for persistence and speed.
This plugin uses `sql.nvim` to perform the database transactions.
## Installation
TODO:
```
use {
"sunjon/telescope-frecency",
config = function()
require"telescope".load_extension("frecency")
end
}
```
## Configuration
Function for keymaps
```lua
lua require("telescope").extensions.frecency.frecency(opts)
```
```
:Telescope frecency
```