From ed04395d37f15fe9670df82959ccf78fda1ab844 Mon Sep 17 00:00:00 2001
From: demostanis <demostanis@protonmail.com>
Date: Sat, 17 Sep 2022 10:33:18 +0200
Subject: [PATCH] show preview even without query in kamp-grep

---
 scripts/kamp-grep | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)
 mode change 100755 => 100644 scripts/kamp-grep

diff --git a/scripts/kamp-grep b/scripts/kamp-grep
old mode 100755
new mode 100644
index 836bd6a..72ea2d3
--- a/scripts/kamp-grep
+++ b/scripts/kamp-grep
@@ -42,6 +42,11 @@ else
   export FZF_DEFAULT_COMMAND="$rg_cmd -- '$query'"
 fi
 
+preview_cmd='bat \
+  --terminal-width $FZF_PREVIEW_COLUMNS \
+  --style=numbers \
+  --color=always'
+
 fzf \
   --phony \
   --query "${query:-}" \
@@ -51,12 +56,13 @@ fzf \
   --bind 'enter:execute(kamp edit {1} +{2}:{3})+abort' \
   --preview '
       highlight_line={2}
-      line_range_begin=$((highlight_line - (FZF_PREVIEW_LINES / 2)))
-      bat \
-        --terminal-width $FZF_PREVIEW_COLUMNS \
-        --style=numbers \
-        --color=always \
-        --line-range "$((line_range_begin < 0 ? 1 : line_range_begin)):+$FZF_PREVIEW_LINES" \
-        --highlight-line {2} {1} 2> /dev/null' \
+      if [ ! -z "${highlight_line##*[!0-9]*}" ]; then
+        line_range_begin=$((highlight_line - (FZF_PREVIEW_LINES / 2)))
+        '"$preview_cmd"' \
+          --line-range "$((line_range_begin < 0 ? 1 : line_range_begin)):+$FZF_PREVIEW_LINES" \
+          --highlight-line {2} {1} 2>/dev/null
+      else
+        '"$preview_cmd"' {1} 2>/dev/null
+      fi' \
   --header 'type to grep' \
   --prompt 'grep> '