add grep command inspired by https://discuss.kakoune.com/t/how-to-search-for-text-in-all-files-in-a-directory/785

rc/modules/fzf-grep.kak

@@ -0,0 +1,51 @@
+# ╭─────────────╥────────────────────────╮
+# │ Author:     ║ File:                  │
+# │ Andrey Orst ║ sk-grep.kak            │
+# ╞═════════════╩════════════════════════╡
+# │ Module running interactive grep with │
+# │ ski for fzf.kak                      │
+# ╞══════════════════════════════════════╡
+# │ GitHub.com/andreyorst/fzf.kak        │
+# ╰──────────────────────────────────────╯
+
+hook global ModuleLoaded fzf %§
+
+declare-option -docstring "what command to use to provide list of grep search matches.
+Grep output must follow the format of 'filename:line-number:text'
+
+Default value:
+    grep -RHn" \
+str fzf_grep_command 'grep'
+
+map -docstring 'grep file contents recursively' global fzf g ': fzf-grep<ret>'
+
+define-command -hidden fzf-grep %{ evaluate-commands %sh{
+    if [ -z "$(command -v $kak_opt_fzf_grep_command)" ]; then
+        printf "%s\n" "echo -markup '{Information}''$kak_opt_fzf_grep_command'' is not installed. Falling back to ''grep'''"
+        kak_opt_fzf_grep_command="grep"
+    fi
+    case $kak_opt_fzf_grep_command in
+        (grep)      cmd="grep -RHn '' ." ;;
+        (rg)        cmd="rg --line-number --no-column --no-heading --color=never ''" ;;
+        (grep*|rg*) cmd=$kak_opt_fzf_grep_command ;;
+        (*)         items_executable=$(printf "%s\n" "$kak_opt_fzf_grep_command" | grep -o -E "[[:alpha:]]+" | head -1)
+                    printf "%s\n" "echo -markup %{{Information}Warning: '$executable' is not supported by fzf.kak.}"
+                    cmd=$kak_opt_fzf_grep_command ;;
+    esac
+
+    cmd="$cmd 2>/dev/null"
+
+    title="fzf grep"
+    message="grep through contents of all files recursively.
+<ret>: open search result in new buffer.
+$kak_opt_fzf_window_map: open search result in new terminal"
+    [ ! -z "${kak_client_env_TMUX}" ] && tmux_keybindings="
+$kak_opt_fzf_horizontal_map: open search result in horizontal split
+$kak_opt_fzf_vertical_map: open search result in vertical split"
+
+    printf "%s\n" "info -title '${title}' '${message}${tmux_keybindings}'"
+    [ ! -z "${kak_client_env_TMUX}" ] && additional_flags="--expect $kak_opt_fzf_vertical_map --expect $kak_opt_fzf_horizontal_map"
+    printf "%s\n" "fzf -kak-cmd %{evaluate-commands} -fzf-args %{--expect $kak_opt_fzf_window_map $additional_flags} -items-cmd %{$cmd} -filter %{sed -E 's/([^:]+):([^:]+):.*/edit -existing \1; execute-keys \2gvc/'}"
+}}
+
+§

rc/modules/sk-grep.kak

@@ -21,7 +21,7 @@ declare-option -hidden str fzf_sk_first_file ''
 
 evaluate-commands %sh{
     if [ -n "$(command -v sk)" ]; then
-        printf "%s\n" "map global fzf -docstring %{Interactive grep with skim} 'g' '<esc>: fzf-sk-grep<ret>'"
+        printf "%s\n" "map global fzf -docstring %{Interactive grep with skim} '<a-g>' '<esc>: fzf-sk-grep<ret>'"
     fi
 }