[docs] Stub out structure for Sphinx-based docs.

 - Work in progress, this is just the basic structure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155132 91177308-0d34-0410-b5e6-96231b3b80d8

.gitignore

@@ -40,3 +40,5 @@ projects/*
 tools/clang
 # LLDB, which is tracked independently.
 tools/lldb
+# Sphinx build tree, if building in-source dir.
+docs/_build

docs/Makefile.sphinx

@@ -0,0 +1,155 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
+
+all:	html
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+
+clean:
+	-rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/llvm.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/llvm.qhc"
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/llvm"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/llvm"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."

docs/README.txt

@@ -0,0 +1,12 @@
+LLVM Documentation
+==================
+
+The LLVM documentation is currently written in two formats:
+
+  * Plain HTML documentation.
+
+  * reStructured Text documentation using the Sphinx documentation generator. It
+    is currently tested with Sphinx 1.1.3.
+
+    For more information, see the "Sphinx Introduction for LLVM Developers"
+    document.

docs/_templates/index.html

@@ -0,0 +1,50 @@
+{# This template defines the 'index.html' page which we currently only use as
+   the entry point to the HTML-based documentation, but later can use to provide
+   an entry point for a Sphinx based LLVM website.
+
+   Conceptually, this page is not supposed to be part of the documentation per
+   se (i.e., the content that would be rendered into a PDF, for example), but
+   rather provides entry points into the documentation and links to other
+   content which would only be part of the website. #}
+
+{% extends "layout.html" %}
+{% set title = 'lld' %}
+{% block body %}
+<h1>LLVM System Documentation</h1>
+
+<p class="doc_warning">
+  This is the front page for the Sphinx-based LLVM documentation. This is
+  currently a work in progress.
+</p>
+
+<h2>Documentation</h2>
+<table class="contentstable" align="center" style="margin-left: 30px">
+  <tr>
+    <td width="50%">
+      <p class="biglink"><a class="biglink" href="{{ pathto('contents') }}">
+          Contents</a><br/>
+        <span class="linkdescr">for a complete overview</span></p>
+      <p class="biglink"><a class="biglink" href="{{ pathto('search') }}">
+          Search page</a><br/>
+        <span class="linkdescr">search the documentation</span></p>
+      <p class="biglink"><a class="biglink" href="{{ pathto('genindex') }}">
+          General Index</a><br/>
+        <span class="linkdescr">all functions, classes, terms</span></p>
+  </td></tr>
+</table>
+
+<h2>Source</h2>
+<p>LLVM is available via public SVN repository:
+  <tt>svn co
+    <a href="http://llvm.org/svn/llvm-project/llvm/trunk">
+      http://llvm.org/svn/llvm-project/llvm/trunk</a></tt>.</p>
+
+<p>LLVM source can be browsed
+  via <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk">ViewVC</a>.</p>
+
+<p>LLVM is also available via a read-only git mirror:
+  <tt>git clone
+    <a href="http://llvm.org/git/llvm.git">
+      http://llvm.org/git/llvm.git</a></tt>.</p>
+
+{% endblock %}

docs/_templates/indexsidebar.html

@@ -0,0 +1,7 @@
+{# This template defines sidebar which can be used to provide common links on
+   all documentation pages. #}
+
+<h3>Bugs</h3>
+
+<p>LLVM bugs should be reported to
+  <a href="http://llvm.org/bugs">Bugzilla</a>.</p>

docs/_templates/layout.html

@@ -0,0 +1,13 @@
+{% extends "!layout.html" %}
+
+{% block extrahead %}
+<style type="text/css">
+  table.right { float: right; margin-left: 20px; }
+  table.right td { border: 1px solid #ccc; }
+</style>
+{% endblock %}
+
+{% block rootrellink %}
+  <li><a href="{{ pathto('index') }}">LLVM Home</a>&nbsp;|&nbsp;</li>
+  <li><a href="{{ pathto('contents') }}">Documentation</a>&raquo;</li>
+{% endblock %}