Add photo/presize.sh

Author: jonaski

photo/presize.sh

@@ -0,0 +1,90 @@
+#!/bin/sh
+#
+# presize.sh
+# Copyright (C) 2019 Jonas Kvinge
+#
+# This script is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This script is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this script.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Redistributions of this script must retain the above copyright notice.
+#
+
+# Resize all JPEG's in the specific directory.
+# Always convert to progressive when progressive is set to 1.
+
+sourcedir="/run/media/jonas/MUSIC/"
+maxsize=1000
+progressive=1
+#92666.220695
+
+which sed awk convert identify >/dev/null || exit 1
+
+IFS_DEFAULT=$IFS
+IFS=$'\n'
+for fullfile in $(find $sourcedir)
+do
+
+  IFS=$IFS_DEFAULT
+
+  if [ -d "$fullfile" ] ; then
+    continue
+  fi
+
+  dir=$(dirname "$fullfile")
+  #diresc=$(echo "$dir" | sed 's/ /\\\ /g')
+  imagename=$(echo "$fullfile" | awk -F/ '{print $NF}')
+  #imagenameesc=$(echo "$imagename" | sed 's/ /\\\ /g')
+
+  image=0
+  imagenamelow=$(echo "$imagename" | tr '[:upper:]' '[:lower:]')
+  case "$imagenamelow" in
+    *.jpg ) image=1;;
+    *.jpeg ) image=1;;
+    * ) image=0;;
+  esac
+
+  if ! [ "$image" = 1 ] ; then
+    continue
+  fi
+
+  geometry=$(identify "${dir}/${imagename}" | sed 's/.*JPEG //g' | awk '{print $1}') || exit 1
+  if [ "$geometry" = "" ] ; then
+    echo "ERROR: Cannot determine format and geometry for image: \"$imagename\"."
+    exit 1
+  fi
+
+  # Geometry can be 563x144+0+0 or 75x98
+  # we need to get rid of the plus (+) and the x characters:
+  width=$(echo "$geometry" | sed 's/[^0-9]/ /g' | awk '{print $1}') || exit 1
+  if [ "$width" = "" ] ; then
+    echo "ERROR: Cannot determine width for image: \"$imagename\"."
+    exit 1
+  fi
+  height=$(echo "$geometry" | sed 's/[^0-9]/ /g' | awk '{print $2}') || exit 1
+  if [ "$height" = "" ] ; then
+    echo "ERROR: Cannot determine height for image: \"$imagename\"."
+    exit 1
+  fi
+  #echo "$imagename ${width}x${height}"
+  if [ "$height" -gt "$maxsize" ] || [ "$width" -gt "$maxsize" ]; then
+    echo "Resizing $imagename ${width}x${height}"
+    convert "$fullfile" -resize ${maxsize}x${maxsize} "$fullfile" || exit 1
+  fi
+  
+  file "$fullfile"  | grep 'progressive' >/dev/null 2>&1
+  if ! [ $? -eq 0 ] && [ "$progressive" -eq 1 ]; then
+    echo "Converting $imagename to progressive."
+    convert "$fullfile" -interlace plane "$fullfile" || exit 1
+  fi
+
+done