From 97a98c8df356ae69ad24b2bd20b7b079db66fd36 Mon Sep 17 00:00:00 2001
From: William Hirigoyen <whirigoyen+git@evolix.fr>
Date: Fri, 17 Feb 2023 10:48:30 +0100
Subject: [PATCH] Log runtime config to /var/log/evocheck.log

---
 linux/CHANGELOG   |  2 +-
 linux/evocheck.sh | 20 +++++++++++++++++---
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/linux/CHANGELOG b/linux/CHANGELOG
index 4ba4aa3..34da9ad 100644
--- a/linux/CHANGELOG
+++ b/linux/CHANGELOG
@@ -5,7 +5,7 @@ and this project **does not adhere to [Semantic Versioning](http://semver.org/sp
 
 ### Added
 
-* Log output to /var/log/evocheck.log.
+* Log output and runtime config to /var/log/evocheck.log.
 
 ### Changed
 
diff --git a/linux/evocheck.sh b/linux/evocheck.sh
index 422bc86..bb6f58f 100755
--- a/linux/evocheck.sh
+++ b/linux/evocheck.sh
@@ -101,9 +101,14 @@ is_installed(){
 # logging
 
 log() {
-    msg="${1}"
     date=$(/bin/date +"${DATE_FORMAT}")
-    printf "[%s] %s: %s\\n" "$date" "${PROGNAME}" "${msg}" >> "${LOGFILE}"
+    if [ "${1}" != '' ]; then
+        printf "[%s] %s: %s\\n" "$date" "${PROGNAME}" "${1}" >> "${LOGFILE}"
+    else
+        while read line; do
+            printf "[%s] %s: %s\\n" "$date" "${PROGNAME}" "${line}" >> "${LOGFILE}"
+        done < /dev/stdin
+    fi
 }
 
 failed() {
@@ -1514,6 +1519,9 @@ readonly ARGS
 LOGFILE="/var/log/evocheck.log"
 readonly LOGFILE
 
+CONFIGFILE="/etc/evocheck.cf"
+readonly CONFIGFILE
+
 DATE_FORMAT="%Y-%m-%d %H:%M:%S"
 # shellcheck disable=SC2034
 readonly DATEFORMAT
@@ -1528,7 +1536,7 @@ trap cleanup_temp_files 0
 
 # Source configuration file
 # shellcheck disable=SC1091
-test -f /etc/evocheck.cf && . /etc/evocheck.cf
+test -f "${CONFIGFILE}" && . "${CONFIGFILE}"
 
 # Parse options
 # based on https://gist.github.com/deshion/10d3cb5f88a21671e17a
@@ -1578,6 +1586,12 @@ done
 
 log "Running $PROGNAME $VERSION..."
 
+# Log config file content
+if [ -f "${CONFIGFILE}" ]; then
+    log "Runtime configuration (${CONFIGFILE}):"
+    sed -e '/^[[:blank:]]*#/d; s/#.*//; /^[[:blank:]]*$/d' "${CONFIGFILE}" | log
+fi
+
 # shellcheck disable=SC2086
 main ${ARGS}