Should show filename for one file with vimgrep

[ericbn]

With vim configured with:

set grepprg=rg\ --vimgrep
set grepformat^=%f:%l:%c:%m

and running the command :grep 'vimgrep' doc/rg.1, the output should be:

doc/rg.1:446:8:.B \-\-vimgrep

but the actual output was:

446:8:.B \-\-vimgrep

Same issue would happen if results only match one file. Ag behaves as expected.

[BurntSushi]

Hmm, I think my original intention was that you'd want to pass --with-filename for this, but I'm guessing that the output of --vimgrep is completely useless if there's no file name, right?

[ericbn]

The grep command for vim should be only configured as set grepprg=rg\ --vimgrep, right?

Now, the default grep format in vim is (see :help grepformat) "%f:%l:%m,%f:%l%m,%f %l%m", meaning <filename>:<linenumber>:<text> or the variations that follow. Both %f and %l are the minimal elements required for a useful output.

Ag introduced the column number on it's --vimgrep output, requiring the extra set grepformat^=%f:%l:%c:%m configuration (the ^= prepends to the existing default comma-separated list). Vim supports even more configurable elements (see :help errorformat), and having the column number better positions the cursor when browsing the results.

TL;DR yeah, the --vimgrep output is useless without the file names.

[BurntSushi]

The grep command for vim should be only configured as set grepprg=rg\ --vimgrep, right?

I don't know. I don't use ripgrep inside of vim.

But I buy it! Thanks!