Documentation: Remove unused build targets

The options in conf.py for the following build targets are either
commented out or contain example values, which suggests that there was
no interest in them recently. Their comments also seem more like
generated examples.

  * LaTeX
  * man pages
  * Texinfo

In order to clean up our configs and scripts for the documentation,
remove the configuration options from conf.py for these build targets.

Also, remove the build targets responsible for generating a PDF file
from Makefile. Don't touch Makefile.sphinx for now though as we usually
wrap around it.

We may bring these build targets back if there is real interest in
them, but it seems only the HTML target was really used.

Change-Id: I7df8ea886f94d9b25e8eeb0ccbc2a7392b96a575
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77439
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

Documentation/Makefile

@@ -4,49 +4,16 @@
 # hacked together by Stefan Reinauer <stepan@openbios.org>
 #
 
-PDFLATEX  = pdflatex -t a4
 BUILDDIR ?= _build
 SPHINXOPTS ?= -j auto
 
 export SPHINXOPTS
 
-FIGS=codeflow.pdf hypertransport.pdf
+all: sphinx
-
-all: sphinx corebootPortingGuide.pdf
-
-SVG2PDF=$(shell command -v svg2pdf)
-INKSCAPE=$(shell command -v inkscape)
-CONVERT=$(shell command -v convert)
-
-codeflow.pdf: codeflow.svg
-ifneq ($(strip $(SVG2PDF)),)
-	svg2pdf $< $@
-else ifneq ($(strip $(INKSCAPE)),)
-	inkscape $< --export-pdf=$@
-else ifneq ($(strip $(CONVERT)),)
-	convert $< $@
-endif
-
-hypertransport.pdf: hypertransport.svg
-ifneq ($(strip $(SVG2PDF)),)
-	svg2pdf $< $@
-else ifneq ($(strip $(INKSCAPE)),)
-	inkscape $< --export-pdf=$@
-else ifneq ($(strip $(CONVERT)),)
-	convert $< $@
-endif
 
 $(BUILDDIR):
 	mkdir -p $(BUILDDIR)
 
-corebootPortingGuide.toc: $(FIGS) corebootBuildingGuide.tex
-	# 2 times to make sure we have a current toc.
-	$(PDFLATEX) corebootBuildingGuide.tex
-	$(PDFLATEX) corebootBuildingGuide.tex
-
-corebootPortingGuide.pdf: $(FIGS) corebootBuildingGuide.tex corebootPortingGuide.toc
-	$(PDFLATEX) corebootBuildingGuide.tex
-
 sphinx: $(BUILDDIR)
 	$(MAKE) -f Makefile.sphinx html BUILDDIR="$(BUILDDIR)"
 
@@ -68,7 +35,7 @@ test:
 	-$(MAKE) -f Makefile.sphinx clean && $(MAKE) -K -f Makefile.sphinx doctest
 
 help:
-	@echo "all            - Builds coreboot porting guide PDF (outdated)"
+	@echo "all            - Builds all documentation targets"
 	@echo "sphinx         - Builds html documentation in _build directory"
 	@echo "clean          - Cleans intermediate files"
 	@echo "clean-sphinx   - Removes sphinx output files"

Documentation/conf.py

@@ -94,92 +94,6 @@ html_css_files = [
 # Output file base name for HTML help builder.
 htmlhelp_basename = 'corebootdoc'
 
-# -- Options for LaTeX output ---------------------------------------------
-
-latex_elements = {
-     # The paper size ('letterpaper' or 'a4paper').
-     #
-     # 'papersize': 'letterpaper',
-
-     # The font size ('10pt', '11pt' or '12pt').
-     #
-     # 'pointsize': '10pt',
-
-     # Additional stuff for the LaTeX preamble.
-     #
-     # 'preamble': '',
-
-     # Latex figure (float) alignment
-     #
-     # 'figure_align': 'htbp',
-}
-
-# Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title,
-#  author, documentclass [howto, manual, or own class]).
-latex_documents = [
-    (master_doc, 'coreboot.tex', u'coreboot Documentation',
-     u'the coreboot project', 'manual'),
-]
-
-# The name of an image file (relative to this directory) to place at the top of
-# the title page.
-#
-# latex_logo = None
-
-# For "manual" documents, if this is true, then toplevel headings are parts,
-# not chapters.
-#
-# latex_use_parts = False
-
-# If true, show page references after internal links.
-#
-# latex_show_pagerefs = False
-
-# If true, show URL addresses after external links.
-#
-# latex_show_urls = False
-
-# Documents to append as an appendix to all manuals.
-#
-# latex_appendices = []
-
-# If false, will not define \strong, \code,	itleref, \crossref ... but only
-# \sphinxstrong, ..., \sphinxtitleref, ... To help avoid clash with user added
-# packages.
-#
-# latex_keep_old_macro_names = True
-
-# If false, no module index is generated.
-#
-# latex_domain_indices = True
-
-
-# -- Options for manual page output ---------------------------------------
-
-# One entry per manual page. List of tuples
-# (source start file, name, description, authors, manual section).
-man_pages = [
-    (master_doc, 'coreboot', u'coreboot Documentation',
-     [author], 1)
-]
-
-# If true, show URL addresses after external links.
-#
-# man_show_urls = False
-
-
-# -- Options for Texinfo output -------------------------------------------
-
-# Grouping the document tree into Texinfo files. List of tuples
-# (source start file, target name, title, author,
-#  dir menu entry, description, category)
-texinfo_documents = [
-    (master_doc, 'coreboot', u'coreboot Documentation',
-     author, 'coreboot', 'One line description of project.',
-     'Miscellaneous'),
-]
-
 enable_auto_toc_tree = True
 
 class MyCommonMarkParser(CommonMarkParser):
@@ -189,23 +103,6 @@ class MyCommonMarkParser(CommonMarkParser):
         n = nodes.literal(mdnode.literal, mdnode.literal)
         self.current_node.append(n)
 
-# Documents to append as an appendix to all manuals.
-#
-# texinfo_appendices = []
-
-# If false, no module index is generated.
-#
-# texinfo_domain_indices = True
-
-# How to display URL addresses: 'footnote', 'no', or 'inline'.
-#
-# texinfo_show_urls = 'footnote'
-
-# If true, do not generate a @detailmenu in the "Top" node's menu.
-#
-# texinfo_no_detailmenu = False
-
-
 def setup(app):
     from recommonmark.transform import AutoStructify
     # Load recommonmark on old Sphinx