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Quick script to autoupdate calibre (http://calibre-ebook.com/) on OS X.
#!/bin/bash
# Script to autoupdate Calibre (http://calibre-ebook.com/)
# Author: David Hutchison
# www: http://www.devwithimagination.com/
#################################
######### CONFIGURATION #########
# These default values should work for everyone. Only change if using a non-standard install location,
# or if the download URL changes in the future.
#################################
# The download page URL.
export CALIBRE_DOWNLOAD_PAGE=http://calibre-ebook.com/download_osx
# The location of the installed application.
export CALIBRE_INSTALL_LOCATION=/Applications/calibre.app
# The download URL (TODO: Load from web page)
DOWNLOAD_URL=http://status.calibre-ebook.com/dist/osx32
#################################
##### ADDITIONAL FUNCTIONS #####
# Vercomp function by Dennis Williamson from StackOverflow answer http://stackoverflow.com/a/4025065/230449
vercomp () {
if [[ $1 == $2 ]]
then
return 0
fi
local IFS=.
local i ver1=($1) ver2=($2)
# fill empty fields in ver1 with zeros
for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
do
ver1[i]=0
done
for ((i=0; i<${#ver1[@]}; i++))
do
if [[ -z ${ver2[i]} ]]
then
# fill empty fields in ver2 with zeros
ver2[i]=0
fi
if ((10#${ver1[i]} > 10#${ver2[i]}))
then
return 1
fi
if ((10#${ver1[i]} < 10#${ver2[i]}))
then
return 2
fi
done
return 0
}
#################################
#Start Update Check script
#Extract the latest offered version number.
LATEST_VERSION=`curl -s $CALIBRE_DOWNLOAD_PAGE | grep Version: | sed 's/[^0-9.]*\([0-9.]*\).*/\1/'`
#Extract the version number of the currently installed version.
CURRENT_VERSION=`defaults read $CALIBRE_INSTALL_LOCATION/Contents/Info CFBundleShortVersionString`
vercomp $CURRENT_VERSION $LATEST_VERSION
case $? in
0)
echo "Installed Version is the latest available ($CURRENT_VERSION).";;
1)
echo "Uh Oh! Current Version is newer than the latest available! (Current: \"$CURRENT_VERSION\", Latest: \"$LATEST_VERSION\")";;
2)
echo "Update Required. (Current: \"$CURRENT_VERSION\", Latest: \"$LATEST_VERSION\")"
# Download the latest version
curl "$DOWNLOAD_URL" -L -o "$TMPDIR/LatestCalibre.dmg"
# Mount the drive
hdiutil attach -noverify "$TMPDIR/LatestCalibre.dmg"
MOUNT_POINT=/Volumes/calibre-$LATEST_VERSION
sleep 10
echo "Updating install…"
#Copy the install files, using sudo if needed. Needing to delete Contents over wise getting errors due to symlinks.
if [ -w "$CALIBRE_INSTALL_LOCATION" ]; then
echo "Can write to install location."
rm -r "$CALIBRE_INSTALL_LOCATION/Contents"
cp -Ra "$MOUNT_POINT/calibre.app" "$CALIBRE_INSTALL_LOCATION/../"
# remove the "downloaded from the internet warning"
xattr -d com.apple.quarantine $CALIBRE_INSTALL_LOCATION
else
echo "Can't write to install location, using sudo."
sudo rm -r "$CALIBRE_INSTALL_LOCATION/Contents"
sudo cp -Ra "$MOUNT_POINT/calibre.app" "$CALIBRE_INSTALL_LOCATION/../"
# remove the "downloaded from the internet warning"
sudo xattr -d com.apple.quarantine $CALIBRE_INSTALL_LOCATION
fi
#Unmount the drive
hdiutil detach "$MOUNT_POINT"
echo "Update finished."
;;
esac
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