Created
August 27, 2017 18:59
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Unzip epub file, then check for version number
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| #! /bin/bash | |
| # ======================================================================= | |
| # | |
| # Unzips epub file, then checks version number | |
| # | |
| # To invoke, type: | |
| # $ epubversion.sh filename.epub | |
| # | |
| # ======================================================================= | |
| # Changelog | |
| #---------------------------------------------------------------------- | |
| # | |
| # v.0.1 (2017-08-27) by milkfarm | |
| # - original version | |
| # Binaries and Defaults | |
| # ----------------------------------------------------------------------- | |
| EPUBOPEN="epubopen.sh" | |
| # Functions | |
| # ----------------------------------------------------------------------- | |
| error () { | |
| echo "! Error: $*" | |
| exit 1 | |
| } | |
| check_command () { | |
| type "$1" &> /dev/null ; | |
| } | |
| # Process parameters | |
| #---------------------------------------------------------------------- | |
| source=`basename $1` | |
| target=${source%%.*} | |
| # Test | |
| #---------------------------------------------------------------------- | |
| # Source file | |
| if [ ! -f "$@" ]; then | |
| error "File does not exist: $@" | |
| fi | |
| # Target directory | |
| if [ -d "$target" ]; then | |
| error "Directory already exists: $target" | |
| fi | |
| # Command | |
| if [ ! check_command $EPUBOPEN ] ; then | |
| error "Command does not exist: $EPUBOPEN" | |
| fi | |
| # Main | |
| #---------------------------------------------------------------------- | |
| $EPUBOPEN "$@" | |
| result=$(grep 'version="3.0"' ${target}/OEBPS/content.opf) | |
| if [ -z "$result" ] ; then | |
| error "Version flag not found" | |
| fi | |
| echo | |
| echo $result | |
| version=$(echo $result | sed 's/^.* version=[\x27"]//' | sed 's/[\x27"].*$//') | |
| if [ -z "$version" ] ; then | |
| error "Version definition not wrapped in quotes" | |
| fi | |
| echo | |
| echo "=> Epub version: ${version}" | |
| # Cleanup | |
| rm -rf ${target} |
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