From 96729e414e0835eadcadb78906114b4c3548b0d3 Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Fri, 13 Mar 2026 06:12:44 +0100
Subject: [PATCH] Support URLs pointing to a zip file

---
 icscheck/icscheck.conf.dist | 8 +++++---
 icscheck/icscheck.sh        | 8 ++++++++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/icscheck/icscheck.conf.dist b/icscheck/icscheck.conf.dist
index 33a2db0..080c16d 100644
--- a/icscheck/icscheck.conf.dist
+++ b/icscheck/icscheck.conf.dist
@@ -3,9 +3,11 @@
 # Configuration file for icscheck.sh
 # https://winklerfamilie.eu/git/SmallThings/icsutils.git
 
-local icsconf_url="https://somethi.ng"
-local icsconf_output="${HOME}/my.ics"
-local icsconf_useragent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0"
+readonly icsconf_url="https://somethi.ng"
+# Only set icsconf_zip if the url points to a zip file
+readonly icsconf_zip="ics_name_inside_zip_$(date +%Y).ics"
+readonly icsconf_output="${HOME}/my.ics"
+readonly icsconf_useragent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0"
 
 # icsError
 # Called if the download from ${icsconf_url} failed
diff --git a/icscheck/icscheck.sh b/icscheck/icscheck.sh
index 271770d..09cd0f4 100755
--- a/icscheck/icscheck.sh
+++ b/icscheck/icscheck.sh
@@ -53,6 +53,8 @@ icscheck() {
 
   for arg in "${@}" ; do
     case "${1:-}" in
+      --debug|-d)
+        set -o xtrace && shift ;;
       --help|-h)
         icsusage && return 0 ;; 
       --renew|-r)
@@ -79,6 +81,11 @@ icscheck() {
 
   curl -L "${ics_url}" -H "User-Agent: ${icsconf_useragent:?}" -o "${ics_down_file}" >/dev/null 2>&1
 
+  if [ -n "${icsconf_zip:-}" ]; then
+    unzip -oqq "${ics_down_file}" "${icsconf_zip}" -d "${ics_temp_dir}"
+    mv -f "${ics_temp_dir}/${icsconf_zip}" "${ics_down_file}"
+  fi
+
   # -s : exists and size greater zero
   if [ ! -s "$ics_down_file" ] || [ ! -r "$ics_down_file" ]; then
     icsError 
@@ -105,3 +112,4 @@ icscheck() {
 }
 
 icscheck "${@}"
+