Prefer fd over rg for faster performance

[zhengpd]

It might be faster to change the workspace_scan_cmd order to try fd before rg. fd is designed to list files while rg is designed to search files.

In my computer fd cost less time than rg with the tradeoff of higher cpu usage.

# files count: 9858
# timing:
rg -.g '!.git' --files  0.10s user 0.31s system 211% cpu 0.191 total
fd -Htf  0.09s user 0.21s system 561% cpu 0.054 total

[delphinus]

I see. I also tried for 140,000 over files with hyperfine and found fd -Htf is faster than rg -.g "!.git" --files, which are the defaults in this plugin. I will set more precedence for fd over rg.

hyperfine --warmup 3 'rg -.g "!.git" --files' 'fd -Htf'

Benchmark 1: rg -.g "!.git" --files
  Time (mean ± σ):      1.035 s ±  0.048 s    [User: 0.735 s, System: 2.309 s]
  Range (min … max):    0.966 s …  1.130 s    10 runs

Benchmark 2: fd -Htf
  Time (mean ± σ):     845.0 ms ±  30.3 ms    [User: 708.9 ms, System: 2449.6 ms]
  Range (min … max):   816.9 ms … 914.6 ms    10 runs

Summary
  fd -Htf ran
    1.23 ± 0.07 times faster than rg -.g "!.git" --files