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04b7091172
As we use redirection to create the SVG file, even a failed conversion
will create the file and 'make' will consider it up-to-date if the
build is retried. We should delete it in case of failure.
Fixes: ec868e4ee2 ("docs-rst: media: build SVG from graphviz files")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
112 lines
3.0 KiB
Makefile
112 lines
3.0 KiB
Makefile
# Rules to convert DOT and SVG to Sphinx images
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SRC_DIR=$(srctree)/Documentation/media
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DOTS = \
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uapi/v4l/pipeline.dot \
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IMAGES = \
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typical_media_device.svg \
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uapi/dvb/dvbstb.svg \
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uapi/v4l/bayer.svg \
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uapi/v4l/constraints.svg \
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uapi/v4l/crop.svg \
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uapi/v4l/fieldseq_bt.svg \
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uapi/v4l/fieldseq_tb.svg \
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uapi/v4l/nv12mt.svg \
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uapi/v4l/nv12mt_example.svg \
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uapi/v4l/pipeline.svg \
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uapi/v4l/selection.svg \
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uapi/v4l/subdev-image-processing-full.svg \
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uapi/v4l/subdev-image-processing-scaling-multi-source.svg \
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uapi/v4l/subdev-image-processing-crop.svg \
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uapi/v4l/vbi_525.svg \
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uapi/v4l/vbi_625.svg \
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uapi/v4l/vbi_hsync.svg \
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DOTTGT := $(patsubst %.dot,%.svg,$(DOTS))
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IMGDOT := $(patsubst %,$(SRC_DIR)/%,$(DOTTGT))
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IMGTGT := $(patsubst %.svg,%.pdf,$(IMAGES))
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IMGPDF := $(patsubst %,$(SRC_DIR)/%,$(IMGTGT))
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cmd = $(echo-cmd) $(cmd_$(1))
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quiet_cmd_genpdf = GENPDF $2
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cmd_genpdf = convert $2 $3
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quiet_cmd_gendot = DOT $2
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cmd_gendot = dot -Tsvg $2 > $3 || { rm -f $3; exit 1; }
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%.pdf: %.svg
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@$(call cmd,genpdf,$<,$@)
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%.svg: %.dot
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@$(call cmd,gendot,$<,$@)
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# Rules to convert a .h file to inline RST documentation
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PARSER = $(srctree)/Documentation/sphinx/parse-headers.pl
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UAPI = $(srctree)/include/uapi/linux
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KAPI = $(srctree)/include/linux
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FILES = audio.h.rst ca.h.rst dmx.h.rst frontend.h.rst net.h.rst video.h.rst \
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videodev2.h.rst media.h.rst cec.h.rst lirc.h.rst
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TARGETS := $(addprefix $(BUILDDIR)/, $(FILES))
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gen_rst = \
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echo ${PARSER} $< $@ $(SRC_DIR)/$(notdir $@).exceptions; \
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${PARSER} $< $@ $(SRC_DIR)/$(notdir $@).exceptions
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quiet_gen_rst = echo ' PARSE $(patsubst $(srctree)/%,%,$<)'; \
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${PARSER} $< $@ $(SRC_DIR)/$(notdir $@).exceptions
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silent_gen_rst = ${gen_rst}
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$(BUILDDIR)/audio.h.rst: ${UAPI}/dvb/audio.h ${PARSER} $(SRC_DIR)/audio.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/ca.h.rst: ${UAPI}/dvb/ca.h ${PARSER} $(SRC_DIR)/ca.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/dmx.h.rst: ${UAPI}/dvb/dmx.h ${PARSER} $(SRC_DIR)/dmx.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/frontend.h.rst: ${UAPI}/dvb/frontend.h ${PARSER} $(SRC_DIR)/frontend.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/net.h.rst: ${UAPI}/dvb/net.h ${PARSER} $(SRC_DIR)/net.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/video.h.rst: ${UAPI}/dvb/video.h ${PARSER} $(SRC_DIR)/video.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/videodev2.h.rst: ${UAPI}/videodev2.h ${PARSER} $(SRC_DIR)/videodev2.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/media.h.rst: ${UAPI}/media.h ${PARSER} $(SRC_DIR)/media.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/cec.h.rst: ${UAPI}/cec.h ${PARSER} $(SRC_DIR)/cec.h.rst.exceptions
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@$($(quiet)gen_rst)
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$(BUILDDIR)/lirc.h.rst: ${UAPI}/lirc.h ${PARSER} $(SRC_DIR)/lirc.h.rst.exceptions
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@$($(quiet)gen_rst)
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# Media build rules
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.PHONY: all html epub xml latex
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all: $(IMGDOT) $(BUILDDIR) ${TARGETS}
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html: all
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epub: all
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xml: all
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latex: $(IMGPDF) all
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clean:
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-rm -f $(DOTTGT) $(IMGTGT) ${TARGETS} 2>/dev/null
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$(BUILDDIR):
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$(Q)mkdir -p $@
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