watch mode

bin/bin/reese

@@ -1,41 +1,53 @@
 #!/bin/sh
 # clone/inspo: https://github.com/enjuus/chandler
 # I have stepbrother named chandler, who goes by reese.
-# depends on: xclip, awk, https://github.com/ericchiang/pup
+# depends on: curl, sed, awk, https://github.com/ericchiang/pup, xclip(optional)
 
 url=""
-target="$HOME/4ch/{BOARD}/{THREAD}"
+# valid templates: BOARD, THREADID, THREAD (which falls back to THREADID)
+target="$HOME/4ch/{BOARD}/{THREADID}"
+watch_mode=false
 
-while getopts "s:d:h" opt; do
+while getopts "s:d:wh" opt; do
     case ${opt} in
 	d) target="$OPTARG" ;;
 	s) url="$OPTARG" ;;
+	w) watch_mode=true ;;
 	h) echo "read it"; exit ;;
     esac
 done
 
 # fallback to clipboard if -s not specified
 [ -z "$url" ] && url="$(xclip -o -selection clipboard)"
-echo "url: $url"
+page="$(curl -s $url)"
+[ $? -ne 0 ] && echo "invalid url" && exit 1
 
 # eg http://boards.4chan.org/wg/thread/7354127
 board=$(echo "$url" | awk '{split($0,a,"/"); print a[4]}')
 thread_id=$(echo "$url" | awk '{split($0,a,"/"); print a[6]}' | sed 's/#.*//')
-page="$(curl -s $url)"
-[ $? -ne 0 ] && echo "invalid url" && exit
-
 thread="$(echo "$page" | pup '.board .subject:first-of-type text{}')"
 [ -z "$thread" ] && thread="$thread_id"
 
-target="$(echo "$target" | sed -e "s/{THREAD}/${thread}/" -e "s/{THREADID}/${thread_id}/" -e "s/{BOARD}/${board}/")"
+target="$(echo "$target" | sed -e "s/{THREAD}/${thread}/;" -e "s/{THREADID}/${thread_id}/" -e "s/{BOARD}/${board}/")"
 mkdir -p "$target"
 
-echo "$page" | pup '.board a.fileThumb attr{href}' | \
-    while read file; do
-	filename="$(basename $file)"
-	# don't duplicate downloads, but fork off every call.
-	[ -f "$target/$filename" ] || echo getting "https:$file to $target/$filename"
-	[ -f "$target/$filename" ] || curl -s "https:$file" > "$target/$filename" &
-    done
-
-wait
+get_images() {
+    echo "$page" | pup '.board a.fileThumb attr{href}' | \
+	while read file; do
+	    filename="$(basename $file)"
+	    # don't duplicate downloads, but fork off every call.
+	    [ -f "$target/$filename" ] || echo getting "https:$file to $target/$filename"
+	    [ -f "$target/$filename" ] || curl -s "https:$file" > "$target/$filename" &
+	done
+
+    wait
+}
+get_images
+
+while $watch_mode; do
+    sleep 60
+    page="$(curl -s $url)"
+    page_title="$(echo "$page" | pup 'head title text{}')"
+    [ "$page_title" = "302 Found" ] && echo "Thread died." && exit 1
+    get_images
+done