Support `git-grep` with a base path argument

[bernardassan]

My first idea

• Change the rg and grep to include the pattern in the grep-cmd
• Then use printf to interpolate fzf's {q} to interpolate the query back into the grep-cmd

archsway/config/elvish/lib/rgf.elv

Lines 29 to 43 in 967ca23

	} elif ?(e:git rev-parse --is-inside-work-tree stdout>$os:dev-null stderr>&stdout) {
	# TODO: git doesn't support having `pattern` at the end when path is
	# specified .ie `git grep directory/ "pattern"`
	set cmd = [
	env
	LC_ALL=C
	git
	grep
	--untracked
	--perl-regexp
	--color=always
	--line-number
	--column
	--ignore-case
	]

archsway/config/elvish/lib/rgf.elv

Lines 94 to 95 in 967ca23

	--bind "start:reload("$rg-prefix" {q})+unbind(ctrl-r)" ^
	--bind "change:reload:"$rg-prefix" {q}" ^

[bernardassan]

Also look at

archsway/config/river/launcher.elv

Line 61 in 967ca23

var default-command = 'all '(print $desktop-names)' | peach {|file| printf "%s\n" $file}'

for assistance on string interpolation with printf output execution in fzf

[bernardassan]

Remember git grep using the 'pattern' directory/ or -e '{q}' -- directory