system-design-primer/generate-epub.sh

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#! /usr/bin/env bash
generate_from_stdin() {
outfile=$1
language=$2
echo "Generating '$language' ..."
pandoc --metadata-file=epub-metadata.yaml --metadata=lang:$2 --from=markdown -o $1 <&0
echo "Done! You can find the '$language' book at ./$outfile"
}
generate_with_solutions () {
tmpfile=$(mktemp /tmp/sytem-design-primer-epub-generator.XXX)
cat ./README.md >> $tmpfile
for dir in ./solutions/system_design/*; do
case $dir in *template*) continue;; esac
case $dir in *__init__.py*) continue;; esac
: [[ -d "$dir" ]] && ( cd "$dir" && cat ./README.md >> $tmpfile && echo "" >> $tmpfile )
done
cat $tmpfile | generate_from_stdin 'README.epub' 'en'
rm "$tmpfile"
}
generate () {
name=$1
language=$2
cat $name.md | generate_from_stdin $name.epub $language
}
# Check if depencies exist
check_dependencies () {
ITER=-1
for dependency in "${dependencies[@]}"
do
ITER=$(expr $ITER + 1)
if ! [ -x "$(command -v $dependency)" ]; then
echo "Error: $dependency is not installed." >&2
exit 1
else
requiredver="${dependencies_minimun_version[ITER]}"
currentver=$($dependency --version | head -1 | cut -d " " -f 2)
if [ "$(printf '%s\n' "$requiredver" "$currentver" | sort -V | head -n1)" != "$requiredver" ]; then
echo "$dependency verion must be >= ${requiredver}"
exit 1
fi
fi
done
}
dependencies=("pandoc")
dependencies_minimun_version=("2.3")
check_dependencies
generate_with_solutions
generate README-ja ja
generate README-zh-Hans zh-Hans
generate README-zh-TW zh-TW