bin/comics: add script for updating xkcd, add $state_file config

xkcd is special (read: other than all others scripts) because it does not
contain a timestamp information in the comics. we have to track the last
script that was added to our mirror. so the xkcd script needs a state-file
containing the last xkcd that was mirrored. the date of the xkcd is the
day of the first discovery of a new comic.

1 files changed, 9 insertions, 1 deletions

diff --git a/etc/settings.sh b/etc/settings.sh
index d1f5486..d837e7d 100644
--- a/etc/settings.sh
+++ b/etc/settings.sh
@@ -11,7 +11,11 @@ comic=$(basename $0)
 year=$(date -d"$daysago days ago" +%Y)
 month=$(date -d"$daysago days ago" +%Y-%m)
 day=$(date -d"$daysago days ago" +%d)
-comic_dir=$(pwd)/$(dirname $0)/../../htdocs/imgs/${comic}
+
+top="$(pwd)/$(dirname $0)/../../"
+state_dir=${top}/var/state/
+state_file=${state_dir}/${comic}.state
+comic_dir=${top}/htdocs/imgs/${comic}
 image_offset=${month}/
 image_dir=${comic_dir}/${image_offset}
 
@@ -19,4 +23,8 @@ if [ ! -d "${image_dir}" ]; then
     mkdir -p "${image_dir}"
 fi
 
+if [ ! -d "${state_dir}" ]; then
+    mkdir -p "${state_dir}"
+fi
+
 wget_args="--timeout 100 --wait=1000 --no-cache"