Documentation/Makefile.sphinx

   1 # -*- makefile -*-
   2 # Makefile for Sphinx documentation
   3 #
   4
   5 # You can set these variables from the command line.
   6 SPHINXBUILD   = sphinx-build
   7 SPHINXOPTS    =
   8 SPHINXDIRS    = .
   9 _SPHINXDIRS   = $(patsubst $(srctree)/Documentation/%/conf.py,%,$(wildcard $(srctree)/Documentation/*/conf.py))
  10 SPHINX_CONF   = conf.py
  11 PAPER         =
  12 BUILDDIR      = $(obj)/output
  13 PDFLATEX      = xelatex
  14 LATEXOPTS     = -interaction=batchmode
  15
  16 # User-friendly check for sphinx-build
  17 HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
  18
  19 ifeq ($(HAVE_SPHINX),0)
  20
  21 .DEFAULT:
  22         $(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
  23         @echo "  SKIP    Sphinx $@ target."
  24
  25 else ifneq ($(DOCBOOKS),)
  26
  27 # Skip Sphinx build if the user explicitly requested DOCBOOKS.
  28 .DEFAULT:
  29         @echo "  SKIP    Sphinx $@ target (DOCBOOKS specified)."
  30
  31 else # HAVE_SPHINX
  32
  33 # User-friendly check for pdflatex
  34 HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
  35
  36 # Internal variables.
  37 PAPEROPT_a4     = -D latex_paper_size=a4
  38 PAPEROPT_letter = -D latex_paper_size=letter
  39 KERNELDOC       = $(srctree)/scripts/kernel-doc
  40 KERNELDOC_CONF  = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
  41 ALLSPHINXOPTS   =  $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
  42 # the i18n builder cannot share the environment and doctrees with the others
  43 I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
  44
  45 # commands; the 'cmd' from scripts/Kbuild.include is not *loopable*
  46 loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;
  47
  48 # $2 sphinx builder e.g. "html"
  49 # $3 name of the build subfolder / e.g. "media", used as:
  50 #    * dest folder relative to $(BUILDDIR) and
  51 #    * cache folder relative to $(BUILDDIR)/.doctrees
  52 # $4 dest subfolder e.g. "man" for man pages at media/man
  53 # $5 reST source folder relative to $(srctree)/$(src),
  54 #    e.g. "media" for the linux-tv book-set at ./Documentation/media
  55
  56 quiet_cmd_sphinx = SPHINX  $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
  57       cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media $2 && \
  58         PYTHONDONTWRITEBYTECODE=1 \
  59         BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
  60         $(SPHINXBUILD) \
  61         -b $2 \
  62         -c $(abspath $(srctree)/$(src)) \
  63         -d $(abspath $(BUILDDIR)/.doctrees/$3) \
  64         -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
  65         $(ALLSPHINXOPTS) \
  66         $(abspath $(srctree)/$(src)/$5) \
  67         $(abspath $(BUILDDIR)/$3/$4)
  68
  69 htmldocs:
  70         @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
  71
  72 linkcheckdocs:
  73         @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
  74
  75 latexdocs:
  76         @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
  77
  78 ifeq ($(HAVE_PDFLATEX),0)
  79
  80 pdfdocs:
  81         $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.)
  82         @echo "  SKIP    Sphinx $@ target."
  83
  84 else # HAVE_PDFLATEX
  85
  86 pdfdocs: latexdocs
  87         $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX=$(PDFLATEX) LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
  88
  89 endif # HAVE_PDFLATEX
  90
  91 epubdocs:
  92         @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
  93
  94 xmldocs:
  95         @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
  96
  97 endif # HAVE_SPHINX
  98
  99 # The following targets are independent of HAVE_SPHINX, and the rules should
 100 # work or silently pass without Sphinx.
 101
 102 # no-ops for the Sphinx toolchain
 103 sgmldocs:
 104         @:
 105 psdocs:
 106         @:
 107 mandocs:
 108         @:
 109 installmandocs:
 110         @:
 111
 112 cleandocs:
 113         $(Q)rm -rf $(BUILDDIR)
 114         $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
 115
 116 dochelp:
 117         @echo  ' Linux kernel internal documentation in different formats (Sphinx):'
 118         @echo  '  htmldocs        - HTML'
 119         @echo  '  latexdocs       - LaTeX'
 120         @echo  '  pdfdocs         - PDF'
 121         @echo  '  epubdocs        - EPUB'
 122         @echo  '  xmldocs         - XML'
 123         @echo  '  linkcheckdocs   - check for broken external links (will connect to external hosts)'
 124         @echo  '  cleandocs       - clean all generated files'
 125         @echo
 126         @echo  '  make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
 127         @echo  '  valid values for SPHINXDIRS are: $(_SPHINXDIRS)'
 128         @echo
 129         @echo  '  make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
 130         @echo  '  configuration. This is e.g. useful to build with nit-picking config.'