From bada1f5013789909c2339b6d1c71caaf3414fe82 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrgen=20Schweizer?= <oe6jue@oevsv.at>
Date: Fri, 30 Mar 2018 23:44:28 +0200
Subject: no easter meetup

---
 meetup/gen_dates_tech.sh | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100755 meetup/gen_dates_tech.sh

(limited to 'meetup/gen_dates_tech.sh')

diff --git a/meetup/gen_dates_tech.sh b/meetup/gen_dates_tech.sh
new file mode 100755
index 0000000..0bc4479
--- /dev/null
+++ b/meetup/gen_dates_tech.sh
@@ -0,0 +1,58 @@
+#!/bin/sh
+# generates the upcoming meetups for Funkfeuer Graz Homepage
+#
+# this script should be called by cron every day (night)
+# how far in the future should i go?
+LIMIT=3
+
+# uncomment to enable debug
+#DEBUG=1
+
+# where to put the output files?
+NEXT_FILE="next.html"
+AFTER_FILE="after.html"
+
+DOW=`date +"%u"`
+if [ $DOW -eq 1 ]; then
+  DOM=`date +"%e"`
+  TS=`date +"%s"`
+else
+  DOM=`date --date="next monday" +"%e"`
+  TS=`date --date="next monday" +"%s"`
+fi
+
+MEETUPS=""
+CNT=0
+while true; do
+  if [ -n "$DEBUG" ]; then echo -n "check day($TS): "`date --date="@$TS" +"%d.%m.%Y"`; fi
+
+  if [ $DOM -le 7 ] || ([ $DOM -ge 15 ] && [ $DOM -le 21 ]); then
+    if [ -n "$DEBUG" ]; then echo " -> ok"; fi
+    MEETUPS="$MEETUPS $TS"
+    CNT=$((CNT + 1))
+    if [ $CNT -ge $LIMIT ]; then
+      break;
+    fi
+  else
+    if [ -n "$DEBUG" ]; then echo ""; fi
+  fi
+  TS=$((TS + (7 * 24 * 3600)))
+  DOM=`date --date="@$TS" +"%e"`
+done
+
+set -- $MEETUPS
+NEXT=$1
+shift
+FUTURE=$@
+
+date --date="@$NEXT" +"%d.%m.%Y" > "$NEXT_FILE.new"
+echo "<ul>" > "$AFTER_FILE.new"
+for meetup in $FUTURE; do
+  echo "  <li>"`date --date="@$meetup" +"%d.%m.%Y"`"</li>" >> "$AFTER_FILE.new"
+
+done
+echo "</ul>" >> "$AFTER_FILE.new"
+mv "$NEXT_FILE.new" "$NEXT_FILE"
+mv "$AFTER_FILE.new" "$AFTER_FILE"
+
+exit 0
-- 
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