Improve Makefiles.

Add `maintcheck' to root Makefile for automatic code sanity check.
Add `revbump' to root Makefile for revision bumping.

Author: CasperVector

Makefile

@@ -1,17 +1,23 @@
 # vim:ft=make:ts=4:sw=4
 
 TITLE = pkuthss
-VERSION = 1.4alpha1
-PROJECT = $(TITLE)-$(VERSION)
-DIST_DOC = $(PROJECT)/doc
-DOC_UTF8LF = $(DIST_DOC)/utf8lf
-DOC_GBKCRLF = $(DIST_DOC)/gbkcrlf
+MAJORVER = 1.4
+MINORVER = alpha1
 README = README
 TOLF = dos2unix -q
 TOCRLF = unix2dos -q
 # VCS directories are unwanted in packaged releases.
 FIND_VCSDIR = -type d -name '.git' -prune
-FIND_FILENOVCS = -not \( $(FIND_VCSDIR) \) -type f
+
+NUMDATE = $(shell date +%Y/%m/%d)
+CNDATE = $(shell python3 -c 'print("$(shell date +%Y年%-m月)".translate(str.maketrans("0123456789", "〇一二三四五六七八九")))')
+
+VER_GEN = $(if $(MINORVER),$(MAJORVER)$(1)$(MINORVER),$(MAJORVER))
+PROJECT = $(TITLE)-$(call VER_GEN,)
+DIST_DOC = $(PROJECT)/doc
+DOC_UTF8LF = $(DIST_DOC)/utf8lf
+DOC_GBKCRLF = $(DIST_DOC)/gbkcrlf
+FIND_FILENOVCS = -not '(' $(FIND_VCSDIR) ')' -type f
 
 dist: dist-clean
 	make dist-dir
@@ -48,5 +54,24 @@ dist-clean:
 	cd doc && make dist-clean && cd -
 	rm -rf $(PROJECT)/ $(PROJECT).zip
 
-.PHONY: dist-clean
+maintcheck:
+	@echo '========================================================================'
+	@echo '$@: keep GBK and UTF-8 files synchronised'
+	@echo '========================================================================'
+	iconv -f GBK tex/pkuthss-gbk.def | diff - tex/pkuthss-utf8.def || true
+	@echo '========================================================================'
+	@echo '$@: use "模版" instead of "模板"'
+	@echo '========================================================================'
+	grep -r '模板' . || true
+	@echo '========================================================================'
+	@echo '$@: remember to update documentation after modifications'
+	@echo '========================================================================'
+
+revbump:
+	sed -i '/\\Provides/,+1 s;\[[^ ]* [^ ]*;[$(NUMDATE) v$(call VER_GEN,-);g' tex/*
+	sed -i '/\\newcommand{\\docversion}/ s;{[^{}]\+}$$;{v$(call VER_GEN, )};g' doc/pkuthss.tex
+	sed -i '/date = / s;{[^{}]\+},$$;{$(CNDATE)},;g' doc/pkuthss.tex
+	@echo '$@: remember to update the ChangeLog'
+	@echo '$@: remember to tag the commit'
+	@echo '$@: remember to use `git push --tags'\'
 

doc/Makefile

@@ -56,5 +56,3 @@ clean:
 dist-clean: clean img-clean
 	$(RM) $(JOBNAME).pdf
 
-.PHONY: img img-clean clean dist-clean
-