file2kindle

#!/bin/bash
# Requires OS X with Homebrew

## Configuration ##
FROM_NAME=""
FROM_EMAIL=""
KINDLE_EMAIL=""

SMTP_HOST=""
SMTP_PORT="587"
SMTP_USER=""
SMTP_PASS=""

KINDLEGEN_PATH="$HOME/bin/kindlegen"
KINDLEGEN_URL="http://kindlegen.s3.amazonaws.com/KindleGen_Mac_i386_v2_9.zip"
WORK_PATH="/tmp/file2kindle"


## App ##
# Prepare environment
input=$1
file_path="$WORK_PATH"/$(basename "$input")
mkdir -p $(dirname "$KINDLEGEN_PATH")
mkdir -p "$WORK_PATH"

# Install KindleGen
if [ ! -f "$KINDLEGEN_PATH" ]; then
  kindlegen_zip="$WORK_PATH"/kindlegen.zip
  kindlegen_dir="$WORK_PATH"/kindlegen_zip
  curl -o "$kindlegen_zip" "$KINDLEGEN_URL"
  unzip -o "$kindlegen_zip" -d "$kindlegen_dir"
  cp "$kindlegen_dir/kindlegen" "$KINDLEGEN_PATH"
  chmod +x "$KINDLEGEN_PATH"
fi

# Convert file to MOBI
cp "$input" "$file_path"
if [[ $file_path == *.epub ]]; then
  "$KINDLEGEN_PATH" "$file_path" -c2 -o "$(basename "$file_path").mobi"
  file_path=$file_path.mobi
fi

# Install mutt
if ! hash mutt; then
  brew install mutt
fi

# Email MOBI to Kindle
mutt_urlencode() {
    old_lc_collate=$LC_COLLATE
    LC_COLLATE=C
    local length="${#1}"
    for (( i = 0; i < length; i++ )); do
        local c="${1:i:1}"
        case $c in
            [a-zA-Z0-9.~_-]) printf "$c" ;;
            *) printf '%%%02X' "'$c" ;;
        esac
    done
    LC_COLLATE=$old_lc_collate
}
smtp_user_urlsafe=$(mutt_urlencode $SMTP_USER)
smtp_pass_urlsafe=$(mutt_urlencode $SMTP_PASS)
cat > $HOME/.muttrc << EOL
set from = "$FROM_EMAIL"
set realname = "$FROM_NAME"
set smtp_url = "smtp://$smtp_user_urlsafe:$smtp_pass_urlsafe@$SMTP_HOST:$SMTP_PORT"
set record = ""
EOL
echo | mutt -s "New Kindle document" "$KINDLE_EMAIL" -a "$file_path"
echo > $HOME/.muttrc