Added libc docs to SphinxDocsBuilder.

[andreil99]

Summary

Expand SphinxDocsBuilder to build and publish libc Sphinx docs.

[gkistanova]

LGTM.

[aaron.ballman]

This isn't working as expected -- our sphinx publish bot has been failing for a while now: https://lab.llvm.org/buildbot/#/builders/89/builds/44024

Can this be reverted so that docs get published again?

[MaskRay]

In D126156#4449911, @aaron.ballman wrote:

This isn't working as expected -- our sphinx publish bot has been failing for a while now: https://lab.llvm.org/buildbot/#/builders/89/builds/44024

Can this be reverted so that docs get published again?

It seems that adding libc to _depends_on_projects has the problem.

This patch works with LLVM_ENABLE_PROJECTS=libc but not with LLVM_ENABLE_RUNTIMES=libc.

https://reviews.llvm.org/D153803 shall hopefully fix it.

zorg/buildbot/builders/SphinxDocsBuilder.py

 from collections import OrderedDict
 
 from buildbot.steps.shell import ShellCommand
 
 from zorg.buildbot.builders import UnifiedTreeBuilder
 from zorg.buildbot.commands.CmakeCommand import CmakeCommand
 from zorg.buildbot.commands.NinjaCommand import NinjaCommand
 
 llvm_docs = OrderedDict([
   # Project              Build target             Local path                            Remote path
   ("llvm",              ("docs-llvm-html",        "docs/html/",                         "llvm")),
   ("clang",             ("docs-clang-html",       "tools/clang/docs/html/",             "cfe")),
   ("clang-tools-extra", ("docs-clang-tools-html", "tools/clang/tools/extra/docs/html/", "clang-tools-extra")),
+  ("libc",              ("docs-libc-html",        "projects/libc/docs/html/",           "libc")),
   ("libcxx",            ("docs-libcxx-html",      "projects/libcxx/docs/html/",         "libcxx")),
   ("libunwind",         ("docs-libunwind-html",   "projects/libunwind/docs/html/",      "libunwind")),
   ("lld",               ("docs-lld-html",         "tools/lld/docs/html/",               "lld")),
   ("lldb",              ("docs-lldb-html",        "tools/lldb/docs/html/",              "lldb")),
   ('flang',             ("docs-flang-html",       "tools/flang/docs/html/",             "flang")),
   ("openmp",            ("docs-openmp-html",      "projects/openmp/docs/html/",         "openmp")),
   ("polly",             ("docs-polly-html",       "tools/polly/docs/html/",             "polly")),
 ])
def getLLVMDocsBuildFactory(
         **kwargs):
 
     if depends_on_projects is None:
         # All the projects by default.
         _depends_on_projects=[
             "llvm",
             "clang",
             "clang-tools-extra",
+            "libc",
             "libcxx",
             "libcxxabi",
             "libunwind",
             "lld",
             "lldb",
             "flang",
             "openmp",
             "polly",