epub: support epub version

epub/en-us/Makefile

@@ -0,0 +1,51 @@
+title = 'Modern C++ Tutorial: C++11/14/17/20 On the Fly'
+filename = 'modern-cpp-tutorial'
+outputname='modern-cpp-tutorial'
+revision = $(shell git describe --always --tags)
+date = $(shell date +'%Y.%m.%d-%H:%M')
+all: revision epub
+
+revision:
+	@echo '---' >> meta.markdown
+	@echo 'title: "Modern C++ Tutorial: C++11/14/17/20 On the Fly"' >> meta.markdown
+	@echo 'author: Changkun Ou <hi@changkun.us>' >> meta.markdown
+	@echo 'subtitle: |' >> meta.markdown
+	@echo '  The content in this PDF file may outdated, please check our website <https://changkun.de/modern-cpp> or GitHub repository <https://github.com/changkun/modern-cpp-tutorial> for the latest book updates. Last update: ${date}' >> meta.markdown
+	@echo 'rights: © Ou Changkun, CC BY-NC-ND 4.0.' >> meta.markdown
+	@echo 'ibooks:' >> meta.markdown
+	@echo '  - version: ${revision}' >> meta.markdown
+	@echo '---' >> meta.markdown
+
+epub: markdown
+	@echo "Compiling PDF file..."
+	pandoc -f markdown+smart --toc -t epub -o $(filename).epub \
+		--highlight-style haddock \
+		--epub-cover-image ../../assets/cover-2nd-en.png \
+		--title-prefix $(title) \
+		meta.markdown \
+		00-preface.md.markdown \
+		01-intro.md.markdown \
+		02-usability.md.markdown \
+		03-runtime.md.markdown \
+		04-containers.md.markdown \
+		05-pointers.md.markdown \
+		06-regex.md.markdown \
+		07-thread.md.markdown \
+		08-filesystem.md.markdown \
+		09-others.md.markdown \
+		10-cpp20.md.markdown \
+		appendix1.md.markdown \
+		appendix2.md.markdown
+	@echo "Done."
+	rm -f *.md *.markdown
+
+markdown:
+	@echo "Copy markdown files..."
+	cp -r ../../book/en-us/* .
+	@echo "Aggregating markdown files..."
+	python3 filter.py
+
+clean:
+	rm -rf *.md *.markdown
+
+.PHONY: markdown epub clean