Merge pull request python#643 from griiid/feature/upgrade-makefile

Upgrade Makefile, it can build single html now

Author: josix

Makefile

@@ -53,6 +53,35 @@ all: $(VENV)/bin/sphinx-build $(VENV)/bin/blurb clone ## Automatically build an
 for file in *.po */*.po; do ln -f $$file $(LC_MESSAGES)/$$file; done
 . $(VENV)/bin/activate; $(MAKE) -C $(CPYTHON_CLONE)/Doc/ SPHINXOPTS='-j$(JOBS) -D locale_dirs=locales -D language=$(LANGUAGE) -D gettext_compact=0' $(MODE)
 
+.PHONY: build
+build: $(VENV)/bin/sphinx-build $(VENV)/bin/blurb clone ## Automatically build an html local version
+@$(eval target=$(filter-out $@,$(MAKECMDGOALS)))
+@if [ -z $(target) ]; then \
+echo "\x1B[1;31m""Please provide a file argument.""\x1B[m"; \
+exit 1; \
+fi
+@if [ "$(suffix $(target))" != ".po" ]; then \
+echo "\x1B[1;31m""Incorrect file extension. Only '.po' files are allowed.""\x1B[m"; \
+exit 1; \
+fi
+@if [[ ! -f "$(target)" ]] ; then \
+echo "\x1B[1;31m""ERROR: $(target) not exist.""\x1B[m"; \
+exit 1; \
+fi
+@mkdir -p $(LC_MESSAGES)
+@$(eval dir=`echo $(target) | xargs -n1 dirname`) ## Get dir
+# If the build target is in under directory
+# We should make direcotry in $(LC_MESSAGES) and link the file.
+@if [ $(dir) != "." ]; then \
+echo "mkdir -p $(LC_MESSAGES)/$(dir)"; \
+mkdir -p $(LC_MESSAGES)/$(dir); \
+echo "ln -f ./$(target) $(LC_MESSAGES)/$(target)"; \
+ln -f ./$(target) $(LC_MESSAGES)/$(target); \
+fi
+# Build
+@echo "----"
+@. $(VENV)/bin/activate; $(MAKE) -C $(CPYTHON_CLONE)/Doc/ SPHINXOPTS='-j$(JOBS) -D language=$(LANGUAGE) -D locale_dirs=locales -D gettext_compact=0' SOURCES='$(basename $(target)).rst' html
+
 help:
 @python3 -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST)
 
@@ -133,3 +162,7 @@ rm_cpython: ## Remove cloned cpython repo
 .PHONY: lint
 lint: $(VENV)/bin/sphinx-lint ## Run sphinx-lint
 $(VENV)/bin/sphinx-lint --enable default-role
+
+# This allows us to accept extra arguments (by doing nothing when we get a job that doesn't match, rather than throwing an error)
+%:
+@: