I want to create a bash script that will log into my google drive account and backup my main folder. I've done a bit of research and I know we need some sort of OAuth for using the Google Drive API but I'm still fairly new so I thought I can get some solid guidance from the stack community.
I guess you don't need to re-invent the wheel, use gdrive and you're good to go
SETUP:
wget -O drive "https://drive.google.com/uc?id=0B3X9GlR6EmbnMHBMVWtKaEZXdDg"
mv drive /usr/sbin/drive
chmod 755 /usr/sbin/drive
Now, simply run drive
to start the authentication process. You'll get a link like this to paste and browse to in to your web browser:
Go to the following link in your browser:
https://accounts.google.com/o/oauth2/auth?client_id=123456789123-7n0vf5akeru7on6o2fjinrecpdoe99eg.apps.googleusercontent.com&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&response_type=code&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdrive&state=state
Authenticate and provide permission for the application to access your Google Drive, and then you'll be provided a verification code to copy and paste back in to your shell:
Enter verification code: 4/9gKYAFAJ326XIP6JJHAEhs342t35LPiA5QGW0935GHWHy9
USAGE:
drive upload --file "/some/path/somefile.ext"
SRC:
Backing up a Directory to Google Drive on CentOS 7
NOTE:
If you really want to build a bash script take a look at this gist , i.e.:
curl_args="--limit-rate 500K"
to $HOME/.gdrive.conf
#!/bin/bash
# based on https://gist.github.com/deanet/3427090
#
# useful $HOME/.gdrive.conf options:
# curl_args="--limit-rate 500K --progress-bar"
browser="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36"
destination_folder_id=${@: -1}
if expr "$destination_folder_id" : '^[A-Za-z0-9]\{28\}$' > /dev/null
then
# all but last word
set -- "${@:0:$#}"
else
# upload to root
unset destination_folder_id
fi
if [ -e $HOME/.gdrive.conf ]
then
. $HOME/.gdrive.conf
fi
old_umask=`umask`
umask 0077
if [ -z "$username" ]
then
read -p "username: " username
unset token
echo "username=$username" >> $HOME/.gdrive.conf
fi
if [ -z "$account_type" ]
then
if expr "$username" : '^[^@]*$' > /dev/null || expr "$username" : '.*@gmail.com$' > /dev/null
then
account_type=GOOGLE
else
account_type=HOSTED
fi
fi
if [ -z "$password$token" ]
then
read -s -p "password: " password
unset token
echo
fi
if [ -z "$token" ]
then
token=`curl --silent --data-urlencode Email=$username --data-urlencode Passwd="$password" --data accountType=$account_type --data service=writely --data source=cURL "https://www.google.com/accounts/ClientLogin" | sed -ne s/Auth=//p`
sed -ie '/^token=/d' $HOME/.gdrive.conf
echo "token=$token" >> $HOME/.gdrive.conf
fi
umask $old_umask
for file in "$@"
do
slug=`basename "$file"`
mime_type=`file --brief --mime-type "$file"`
upload_link=`curl --silent --show-error --insecure --request POST --header "Content-Length: 0" --header "Authorization: GoogleLogin auth=${token}" --header "GData-Version: 3.0" --header "Content-Type: $mime_type" --header "Slug: $slug" "https://docs.google.com/feeds/upload/create-session/default/private/full${destination_folder_id+/folder:$destination_folder_id/contents}?convert=false" --dump-header - | sed -ne s/"Location: "//p`
echo "$file:"
curl --request POST --output /dev/null --data-binary "@$file" --header "Authorization: GoogleLogin auth=${token}" --header "GData-Version: 3.0" --header "Content-Type: $mime_type" --header "Slug: $slug" "$upload_link" $curl_args
done