From ebd2f77ac15156904eab1da25dc1fca692feeb23 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 1 Jul 2022 09:10:05 +0200
Subject: put tr into TR, use SED, SORT, ... everywhere

---
 crypt-expiry-check.in | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/crypt-expiry-check.in b/crypt-expiry-check.in
index 4cb78c6..2b3576e 100755
--- a/crypt-expiry-check.in
+++ b/crypt-expiry-check.in
@@ -80,6 +80,7 @@ OPENSSL=$(which openssl)
 PRINTF=$(which printf)
 SED=$(which sed)
 TEE=$(which tee)
+TR=$(which tr)
 SORT=$(which sort)
 TAIL=$(which tail)
 MKTEMP=$(which mktemp)
@@ -347,14 +348,14 @@ check_nginx_configuration() {
             read -r _ FILE
         } < <(
             printf '%s\n' "${line}" \
-            | sed '
+            | "${SED}" '
                 s/[;{}]/\0\n/g
             ' \
-            | sed -n '
+            | "${SED}" -n '
                 /^\(server_name\|ssl_certificate\)\s/p
             ' \
-            | sort \
-            | sed '
+            | "${SORT}" \
+            | "${SED}" '
                 s/;$//
             '
         )
@@ -362,16 +363,16 @@ check_nginx_configuration() {
     done < <(
         find "${CONFIGDIR}" \
             \( -type f -o -type l \) \
-            -exec sed '
+            -exec "${SED}" '
                 s/#.*$//
                 s/^\s*//
                 s/\s*$//
             ' {} \; \
-        | tr -d '\n' \
-        | sed '
+        | "${TR}" -d '\n' \
+        | "${SED}" '
             s/}server\s*{/\n\0/g
         ' \
-        | grep -wF 'ssl_certificate'
+        | "${GREP}" -wF 'ssl_certificate'
     )
 }
 
@@ -644,10 +645,10 @@ then
 fi
 
 ### Check to make sure the sed and awk binaries are available
-if [ ! -f ${SED} ] || [ ! -f ${AWK} ] || [ ! -f ${TEE} ] || [ ! -f ${SORT} ] || [ ! -f ${TAIL} ]
+if [ ! -f ${SED} ] || [ ! -f ${AWK} ] || [ ! -f ${TEE} ] || [ ! -f ${SORT} ] || [ ! -f ${TAIL} ] || [ ! -f "${TR}" ]
 then
-    >&2 echo "ERROR: Unable to locate the sed, awk, tee, sort or tail binary."
-    >&2 echo "FIX: Please modify the \${SED}, \${AWK}, \${TEE}, \${SORT}, \${TAIL} variables in the program header."
+    >&2 echo "ERROR: Unable to locate the sed, awk, tee, sort, tail or tr binary."
+    >&2 echo "FIX: Please modify the \${SED}, \${AWK}, \${TEE}, \${SORT}, \${TAIL}, \${TR} variables in the program header."
     exit 1
 fi
 
@@ -721,7 +722,7 @@ do
             check_server_status "${HOST}" "${PORT}" "${FWARNDAYS}"
         fi
     done < <(
-        sed '
+        "${SED}" '
           /^#\|^$/d
           s/^\([0-9]\+\) \+\(.*\S\) \+\(\S\+\)$/\1 \3 \2/
           t
-- 
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