From b674becc82c15e87865d6bb8598831dd936b61a5 Mon Sep 17 00:00:00 2001
From: Dylan Araps <dylan.araps@gmail.com>
Date: Mon, 5 Jul 2021 15:10:48 +0300
Subject: [PATCH] kiss: remove subshell usage with sh256

---
 kiss | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/kiss b/kiss
index 086df22..3142e06 100755
--- a/kiss
+++ b/kiss
@@ -151,7 +151,8 @@ sh256() {
             digest -a sha256        "$1"
         ) 2>/dev/null
 
-        printf '%s\n' "${hash%% *}"
+        hash=${hash%% *}
+        printf '%s\n' "$hash"
     fi
 }
 
@@ -1083,10 +1084,10 @@ pkg_remove_files() {
     # functions allows us to stop duplicating code.
     while read -r file; do
         case $file in /etc/?*[!/])
-            sum_sys=$(sh256 "$KISS_ROOT/$file")
-            sum_old=$(grep -F "$sum_sys" "$mak_dir/c")
+            sh256 "$KISS_ROOT/$file" >/dev/null
+            sum_old=$(grep -F "$hash" "$mak_dir/c")
 
-            [ "$sum_sys" = "$sum_old" ] || {
+            [ "$hash" = "$sum_old" ] || {
                 printf 'Skipping %s (modified)\n' "$file"
                 continue
             }
@@ -1130,8 +1131,8 @@ pkg_etc() (
     find etc ! -type d | sort | while read -r file; do
         i=$((i + 1))
 
-        { sum_new=$(sh256 "$file")
-          sum_sys=$(sh256 "$KISS_ROOT/$file")
+        { sh256 "$file";            sum_new=$hash
+          sh256 "$KISS_ROOT/$file"; sum_sys=$hash
           sum_old=$(awk "NR == $i" "$mak_dir/c"); } 2>/dev/null || :
 
         log "$pkg_name" "Doing 3-way handshake for $file"