added a help function to create_thumbnails script

[photo-tags.git] / create_thumbnails.sh

diff --git a/create_thumbnails.sh b/create_thumbnails.sh
index 61745386e441d6e4c2c9047388be5776c6cd6877..b652cb30f067678256f044c9c4b1facacf81fa7f 100755 (executable)
--- a/create_thumbnails.sh
+++ b/create_thumbnails.sh
@@ -1,9 +1,11 @@
 #!/bin/bash
 
+NICE="nice -19"
+
 # init some variables
 removemeta=0
 
-# parse ini file 
+# parse ini file
 CONFIG_FILE="config.ini"
 
 # copied and modified from http://mark.aufflick.com/blog/2007/11/08/parsing-ini-files-with-sed
@@ -17,15 +19,37 @@ eval `sed -e 's/[[:space:]]*\=[[:space:]]*/=/g' \
 
 LOCALDB=$fspotdb
 dbprefix=${dbprefix//\//\\\/}
+limit=`$NICE sqlite3 $LOCALDB "select count(*) from photos"`
+
+
+function usage()
+{
+  echo "Usage: $0 [OPTIONS]"
+  echo " Options:"
+  echo "          -r          remove metadata from pictures"
+  echo "          -l NUMBER   only process NUMBER pictures"
+}
 
 # parse command line
-while getopts ":r" opt; do
+while getopts ":rl:h" opt; do
   case $opt in
     r)
       removemeta=1
       ;;
+    l)
+      limit=$OPTARG
+      ;;
+    h)
+      usage
+      exit 0
+      ;;
     \?)
       echo "Invalid option: -$OPTARG" >&2
+      exit 1
+      ;;
+    :)
+      echo "Option -$OPTARG requires an argument." >&2
+      exit 1
       ;;
   esac
 done
@@ -54,11 +78,11 @@ done=0
 offset=0
 FILES=""
 
-while [ $done -lt 200 ] ; do
-   echo "skipping $offset pics, getting 100 new pics to work on..."
+while [ $done -lt $limit ] ; do
+   echo "skipping $offset pics, getting $limit new pics to work on..."
    # handle white space in filename correctly
-   FILES=`sqlite3 $LOCALDB "select replace(base_uri||'/'||filename,' ','%20') from photos limit $offset,100"`
-   
+   FILES=`$NICE sqlite3 $LOCALDB "select replace(base_uri||'/'||filename,' ','%20') from photos limit $offset,$limit"`
+
    if [ "x$FILES" != "x" ] ; then
      #found some files, process them
      for file in $FILES; do
@@ -67,29 +91,29 @@ while [ $done -lt 200 ] ; do
         file=${file//\%20/ }
         dir=`dirname "$file"`
         base=`basename "$file"`
-        
+
         if [ ! -s "Photos-tiny/$dir/$base" ] ; then
             mkdir -p Photos-tiny/$dir
-            nice -19 convert "$dirprefix/$file" -auto-orient -resize x100 -quality 80% "Photos-tiny/$dir/$base"
+            $NICE convert "$dirprefix/$file" -auto-orient -resize x100 -quality 80% "Photos-tiny/$dir/$base"
             if [ $removemeta=1 ]; then
-                jhead -q -se -purejpg "Photos-tiny/$dir/$base"
-                jhead -q -se -dt "Photos-tiny/$dir/$base"
-                jhead -q -se -mkexif "Photos-tiny/$dir/$base"
-                jhead -q -se -cl "This photo belongs to $admin and was taken from $webbase. If you want to use this photo, please contact him." "Photos-tiny/$dir/$base"
+                $NICE jhead -q -se -purejpg "Photos-tiny/$dir/$base"
+                $NICE jhead -q -se -dt "Photos-tiny/$dir/$base"
+                $NICE jhead -q -se -mkexif "Photos-tiny/$dir/$base"
+                $NICE jhead -q -se -cl "This photo belongs to $admin and was taken from $webbase. If you want to use this photo, please contact him." "Photos-tiny/$dir/$base"
             fi
             done=$((done+1))
-        fi 
+        fi
         if [ ! -s "Photos-small/$dir/$base" ] ; then
             mkdir -p Photos-small/$dir
-            nice -19 convert "$dirprefix/$file" -auto-orient -resize x600 -quality 80% "Photos-small/$dir/$base"
+            $NICE convert "$dirprefix/$file" -auto-orient -resize x600 -quality 80% "Photos-small/$dir/$base"
             if [ $removemeta=1 ]; then
-                jhead -q -se -purejpg "Photos-small/$dir/$base"
-                jhead -q -se -dt "Photos-small/$dir/$base"
-                jhead -q -se -mkexif "Photos-small/$dir/$base"
-                jhead -q -se -cl "This photo belongs to $admin and was taken from $webbase. If you want to use this photo, please contact him." "Photos-small/$dir/$base"
+                $NICE jhead -q -se -purejpg "Photos-small/$dir/$base"
+                $NICE jhead -q -se -dt "Photos-small/$dir/$base"
+                $NICE jhead -q -se -mkexif "Photos-small/$dir/$base"
+                $NICE jhead -q -se -cl "This photo belongs to $admin and was taken from $webbase. If you want to use this photo, please contact him." "Photos-small/$dir/$base"
             fi
             done=$((done+1))
-        fi 
+        fi
 
         echo -n -e "$((done/2))       \r"
      done
@@ -97,6 +121,6 @@ while [ $done -lt 200 ] ; do
        break;
    fi
 
-   #get ready to get the next 100
-   offset=$((offset+100))
+   #get ready to get the next photos
+   offset=$((offset+$limit))
 done