From f42cbcb86f8cd81622514f33a997d38767ae5ecb Mon Sep 17 00:00:00 2001
From: Andrey Orst <andreyorst@gmail.com>
Date: Wed, 27 Mar 2019 11:14:23 +0300
Subject: [PATCH] new filter flag, which acts like final pipe after fzf command

---
 rc/fzf.kak                | 17 +++++++++--------
 rc/modules/fzf-search.kak |  2 +-
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/rc/fzf.kak b/rc/fzf.kak
index b084391..144ba1d 100644
--- a/rc/fzf.kak
+++ b/rc/fzf.kak
@@ -105,19 +105,20 @@ Switches:
     -kak-cmd <command>: A Kakoune cmd that is applied to fzf resulting value.
     -items-cmd <items command>: A command that is used to provide list of values to fzf.
     -fzf-args <args>: Additional flags for fzf program
-    -post-action <commands>: Extra commands that are preformed after `-kak-cmd' command.
     -preview-cmd: a preview command
-    -preview: should fzf window include preview" \
+    -preview: should fzf window include preview
+    -filter <commands>: A pipe which will be applied to result provided by fzf
+    -post-action <commands>: Extra commands that are preformed after `-kak-cmd' command." \
 fzf -shell-script-completion %{echo "-kak-cmd\n-items-cmd\n-fzf-args\n-post-action\n"} -params .. %{ evaluate-commands %sh{
     while [ $# -gt 0 ]; do
         case $1 in
             -kak-cmd)     shift; kakoune_cmd="$1" ;;
-            -items-cmd)   shift; items_cmd="$1" ;;
-            -fzf-args)    shift; fzf_args="$1" ;;
-            -post-action) shift; post_action="$1" ;;
+            -items-cmd)   shift; items_cmd="$1"   ;;
+            -fzf-args)    shift; fzf_args="$1"    ;;
             -preview-cmd) shift; preview_cmd="$1" ;;
-            -preview)     preview="true" ;;
-            *) ;;
+            -preview)            preview="true"   ;;
+            -filter)      shift; filter="| $1"    ;;
+            -post-action) shift; post_action="$1" ;;
         esac
         shift
     done
@@ -149,7 +150,7 @@ fzf -shell-script-completion %{echo "-kak-cmd\n-items-cmd\n-fzf-args\n-post-acti
     result="${fzf_tmp}/result"
 
     # compose entire fzf command with all args into single file which will be executed later
-    printf "%s\n" "cd \"${PWD}\" && ${preview_position} ${items_cmd} | SHELL=$(command -v sh) ${kak_opt_fzf_implementation} ${fzf_args} ${preview_cmd} > ${result}; rm ${fzfcmd}" > ${fzfcmd}
+    printf "%s\n" "cd \"${PWD}\" && ${preview_position} ${items_cmd} | SHELL=$(command -v sh) ${kak_opt_fzf_implementation} ${fzf_args} ${preview_cmd} ${filter} > ${result}; rm ${fzfcmd}" > ${fzfcmd}
     chmod 755 ${fzfcmd}
 
     if [ -n "${kak_client_env_TMUX}" ]; then
diff --git a/rc/modules/fzf-search.kak b/rc/modules/fzf-search.kak
index 0329318..e4af11a 100644
--- a/rc/modules/fzf-search.kak
+++ b/rc/modules/fzf-search.kak
@@ -17,6 +17,6 @@ define-command -hidden fzf-buffer-search %{ evaluate-commands %sh{
     printf "%s\n" "info -title '$title' '$message'"
     buffer_content="$(mktemp ${TMPDIR:-/tmp}/fzf-buff-${kak_buffile##*/}.XXXXXX)"
     printf "%s\n" "execute-keys -draft %{%<a-|>cat<space>><space>$buffer_content<ret>;}"
-    printf "%s\n" "fzf -kak-cmd %{execute-keys} -items-cmd %{(nl -b a -n ln $buffer_content; rm $buffer_content)} -fzf-args %{--reverse | cut -f 1} -post-action %{execute-keys gx}"
+    printf "%s\n" "fzf -kak-cmd %{execute-keys} -items-cmd %{(nl -b a -n ln $buffer_content; rm $buffer_content)} -fzf-args %{--reverse} -filter %{cut -f 1} -post-action %{execute-keys gx}"
 }}