added meetup date generation script

1 files changed, 47 insertions, 8 deletions

diff --git a/meetup/gen_dates.sh b/meetup/gen_dates.sh
index 0457a39..d198c94 100755
--- a/meetup/gen_dates.sh
+++ b/meetup/gen_dates.sh
@@ -1,13 +1,52 @@
 #!/bin/sh
 
-DOW=`date --date="next monday" +"%d"`
-DOW_TS=`date --date="next monday" +"%s"`
+# how far in the future
+LIMIT=3
+#DEBUG=1
+NEXT_FILE="next.html"
+AFTER_FILE="after.html"
 
-echo $DOW
-echo $DOW_TS
+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
 
-NEXT_DOW_TS=$((DOW_TS + (7 * 24 * 3600)))
-NEXT_DOW=`date --date="@$NEXT_DOW_TS" +"%d"`
+MEETUPS=""
+CNT=0
+while true; do
+  if [ -n "$DEBUG" ]; then echo -n "check day($TS): "`date --date="@$TS" +"%d.%m.%Y"`; fi
 
-echo $NEXT_DOW
-echo $NEXT_DOW_TS
+  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
\ No newline at end of file