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Message-ID: <20190924070819.0a7b6658@coco.lan>
Date: Tue, 24 Sep 2019 07:08:19 -0300
From: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
To: Kees Cook <keescook@...omium.org>
Cc: Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] docs: Programmatically render MAINTAINERS into
ReST
Em Mon, 23 Sep 2019 15:43:45 -0700
Kees Cook <keescook@...omium.org> escreveu:
> In order to have the MAINTAINERS file visible in the rendered ReST
> output, this makes some small changes to the existing MAINTAINERS file
> to allow for better machine processing, and adds a tool to perform the
> rendering.
>
> Features include:
> - Per-subsystem reference links: subsystem maintainer entries can be
> trivially linked to both internally and external. For example:
> https://www.kernel.org/doc/html/latest/process/maintainers.html#secure-computing
>
> - Internally referenced .rst files are linked so they can be followed
> when browsing the resulting rendering. This allows, for example, the
> future addition of maintainer profiles to be automatically linked.
>
> - Field name expansion: instead of the short fields (e.g. "M", "F",
> "K"), use the indicated inline "full names" for the fields (which are
> marked with "*"s in MAINTAINERS) so that a rendered subsystem entry
> is more human readable. For example:
>
> SECURE COMPUTING
> Mail: Kees Cook <keescook@...omium.org>
> Reviewer: Andy Lutomirski <luto@...capital.net>
> Will Drewry <wad@...omium.org>
> SCM: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git seccomp
> Status: Supported
> Files: kernel/seccomp.c include/uapi/linux/seccomp.h
> include/linux/seccomp.h tools/testing/selftests/seccomp/*
> tools/testing/selftests/kselftest_harness.h
> userspace-api/seccomp_filter
> Content regex: \bsecure_computing \bTIF_SECCOMP\b
Output looks almost OK on my eyes.
It probably makes sense to change some things there, as, right now, it
is considering multiple lines as continuation. So, for example, if
it has multiple M: entries, it will produce this at MAINTAINERS.rst
output:
:Mail:
Juergen Gross <jgross@...e.com>
Thomas Hellstrom <thellstrom@...are.com>
"VMware, Inc." <pv-drivers@...are.com>
With would be displayed as:
Mail
Juergen Gross <jgross@...e.com> Thomas Hellstrom <thellstrom@...are.com> “VMware, Inc.” <pv-drivers@...are.com>
It would probably be better to output it as:
:Mail:
- Juergen Gross <jgross@...e.com>
- Thomas Hellstrom <thellstrom@...are.com>
- "VMware, Inc." <pv-drivers@...are.com>
or:
:Mail:
Juergen Gross <jgross@...e.com>
Thomas Hellstrom <thellstrom@...are.com>
"VMware, Inc." <pv-drivers@...are.com>
or, eventually:
:Mail:
Juergen Gross <jgross@...e.com>,
Thomas Hellstrom <thellstrom@...are.com>,
"VMware, Inc." <pv-drivers@...are.com>
(Using commas is probably a bad idea, as DT file names may have a
comma in the middle)
Same applies to other fields.
>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
> Documentation/Makefile | 18 ++--
> Documentation/process/index.rst | 1 +
> Documentation/process/maintainers.rst | 1 +
> .../sphinx-static/theme_overrides.css | 10 ++
> Documentation/sphinx/convert-maintainers.py | 92 +++++++++++++++++++
> MAINTAINERS | 59 ++++++------
> 6 files changed, 146 insertions(+), 35 deletions(-)
> create mode 100644 Documentation/process/maintainers.rst
> create mode 100644 Documentation/sphinx/convert-maintainers.py
>
> diff --git a/Documentation/Makefile b/Documentation/Makefile
> index 16116d038161..6ebe99edfbad 100644
> --- a/Documentation/Makefile
> +++ b/Documentation/Makefile
> @@ -9,6 +9,8 @@ ifeq ($(CONFIG_WARN_MISSING_DOCUMENTS),y)
> $(shell $(srctree)/scripts/documentation-file-ref-check --warn)
> endif
>
> +DOC_DEPS = $(BUILDDIR)/MAINTAINERS.rst
> +
> # You can set these variables from the command line.
> SPHINXBUILD = sphinx-build
> SPHINXOPTS =
> @@ -77,14 +79,14 @@ quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
> $(abspath $(srctree)/$(src)/$5) \
> $(abspath $(BUILDDIR)/$3/$4)
>
> -htmldocs:
> +htmldocs: $(DOC_DEPS)
> @$(srctree)/scripts/sphinx-pre-install --version-check
> @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
>
> -linkcheckdocs:
> +linkcheckdocs: $(DOC_DEPS)
> @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
>
> -latexdocs:
> +latexdocs: $(DOC_DEPS)
> @$(srctree)/scripts/sphinx-pre-install --version-check
> @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
>
> @@ -102,11 +104,11 @@ pdfdocs: latexdocs
>
> endif # HAVE_PDFLATEX
>
> -epubdocs:
> +epubdocs: $(DOC_DEPS)
> @$(srctree)/scripts/sphinx-pre-install --version-check
> @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
>
> -xmldocs:
> +xmldocs: $(DOC_DEPS)
> @$(srctree)/scripts/sphinx-pre-install --version-check
> @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
>
> @@ -115,7 +117,11 @@ endif # HAVE_SPHINX
> # The following targets are independent of HAVE_SPHINX, and the rules should
> # work or silently pass without Sphinx.
>
> -refcheckdocs:
> +$(BUILDDIR)/MAINTAINERS.rst: $(srctree)/MAINTAINERS $(srctree)/Documentation/sphinx/convert-maintainers.py
> + $(Q)mkdir -p $(BUILDDIR)
> + $(Q)$(shell python3 $(srctree)/Documentation/sphinx/convert-maintainers.py $< > $@ || rm -f $@)
> +
No need to use "python3" here, as the script has a shebang markup. Just
ensure that it has 755 permission, and call it directly.
> +refcheckdocs: $(DOC_DEPS)
> $(Q)cd $(srctree);scripts/documentation-file-ref-check
>
> cleandocs:
> diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
> index e2c9ffc682c5..e2fb0c9652ac 100644
> --- a/Documentation/process/index.rst
> +++ b/Documentation/process/index.rst
> @@ -46,6 +46,7 @@ Other guides to the community that are of interest to most developers are:
> kernel-docs
> deprecated
> embargoed-hardware-issues
> + maintainers
>
> These are some overall technical guides that have been put here for now for
> lack of a better place.
> diff --git a/Documentation/process/maintainers.rst b/Documentation/process/maintainers.rst
> new file mode 100644
> index 000000000000..32267a1666ff
> --- /dev/null
> +++ b/Documentation/process/maintainers.rst
> @@ -0,0 +1 @@
> +.. kernel-include:: $BUILDDIR/MAINTAINERS.rst
> diff --git a/Documentation/sphinx-static/theme_overrides.css b/Documentation/sphinx-static/theme_overrides.css
> index e21e36cd6761..459ec5b29d68 100644
> --- a/Documentation/sphinx-static/theme_overrides.css
> +++ b/Documentation/sphinx-static/theme_overrides.css
> @@ -53,6 +53,16 @@ div[class^="highlight"] pre {
> line-height: normal;
> }
>
> +/* Keep fields from being strangely far apart due to inheirited table CSS. */
> +.rst-content table.field-list th.field-name {
> + padding-top: 1px;
> + padding-bottom: 1px;
> +}
> +.rst-content table.field-list td.field-body {
> + padding-top: 1px;
> + padding-bottom: 1px;
> +}
> +
> @media screen {
>
> /* content column
I would place this on a separate patch, as this is a layout change that
may affect other files.
Btw, what does this change?
> diff --git a/Documentation/sphinx/convert-maintainers.py b/Documentation/sphinx/convert-maintainers.py
> new file mode 100644
> index 000000000000..86cfce7b70c7
> --- /dev/null
> +++ b/Documentation/sphinx/convert-maintainers.py
> @@ -0,0 +1,92 @@
> +#!/usr/bin/env python3
While using python3 is actually OK from my side, as Jon pointed on another
e-mail, we're still discussing if we should either force python3 or not.
So, I would change:
python3 -> python
but that's just my 2 cents.
> +# SPDX-License-Identifier: GPL-2.0
> +import os, sys, re
> +
> +print(".. _maintainers:\n")
> +
> +# Poor man's state machine.
> +descriptions = False
> +maintainers = False
> +subsystems = False
> +
> +# Field letter to field name mapping.
> +field_letter = None
> +fields = dict()
> +
> +prev = None
> +for line in open(sys.argv[1]):
> + # Have we reached the end of the preformatted Descriptions text?
> + if descriptions and line.startswith('Maintainers'):
> + descriptions = False
> + # Ensure a blank line following the last "|"-prefixed line.
> + print("")
> +
> + # Start subsystem processing? This is to skip processing the text
> + # between the Maintainers heading and the first subsystem name.
> + if maintainers and not subsystems:
> + if re.search('^[A-Z0-9]', line):
> + subsystems = True
> +
> + # Drop needless input whitespace.
> + line = line.rstrip()
> +
> + # Linkify all non-wildcard references to ReST files in Documentation/.
> + pat = '(Documentation/([^\s\?\*]*)\.rst)'
> + m = re.search(pat, line)
> + if m:
> + # maintainers.rst is in a subdirectory, so include "../".
> + line = re.sub(pat, ':doc:`%s <../%s>`' % (m.group(2), m.group(2)), line)
> +
> + # Check state machine for output rendering behavior.
> + output = ""
> + if descriptions:
> + output = "| %s" % (line)
> + # Look for and record field letter to field name mappings:
> + # R: Designated *reviewer*: FullName <address@...ain>
> + m = re.search("\s(\S):\s", line)
> + if m:
> + field_letter = m.group(1)
> + if field_letter and not field_letter in fields:
> + m = re.search("\*([^\*]+)\*", line)
> + if m:
> + fields[field_letter] = m.group(1)
> + elif subsystems and len(line) > 1:
> + if line[1] != ':':
> + # Render a subsystem entry as:
> + # SUBSYSTEM NAME
> + # ~~~~~~~~~~~~~~
> + heading = re.sub("\s+", " ", line)
> + output = "%s\n%s" % (heading, "~" * len(heading))
> + field_prev = ""
> + else:
> + # Render a subsystem field as:
> + # :Field: entry
> + # entry...
> + field, details = line.split(':', 1)
> + details = details.strip()
> +
> + # Mark paths as literal text for readability.
> + if field in ['F', 'N', 'X', 'K']:
> + # But only if not already marked :)
> + if not ':doc:' in details:
> + details = '``%s``' % (details)
> +
> + # Do not repeat field names, so that field entries
> + # will be collapsed together.
> + if field != field_prev:
> + output = ":%s:\n" % (fields.get(field, field))
> + output = output + "\t%s" % (details)
> + field_prev = field
> + else:
> + output = line
> + print(output)
> +
> + # Update the state machine when we find heading separators.
> + if line.startswith('----------'):
> + if prev.startswith('Descriptions'):
> + descriptions = True
> + if prev.startswith('Maintainers'):
> + maintainers = True
> +
> + # Retain previous line for state machine transitions.
> + prev = line
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 2b6f10ea1573..fbaf09210647 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1,12 +1,14 @@
> -
> -
> - List of maintainers and how to submit kernel changes
> +List of maintainers and how to submit kernel changes
> +====================================================
>
> Please try to follow the guidelines below. This will make things
> easier on the maintainers. Not all of these guidelines matter for every
> trivial patch so apply some common sense.
>
> -1. Always _test_ your changes, however small, on at least 4 or
> +Tips for patch submitters
> +-------------------------
> +
> +1. Always *test* your changes, however small, on at least 4 or
> 5 people, preferably many more.
>
> 2. Try to release a few ALPHA test versions to the net. Announce
> @@ -25,7 +27,7 @@ trivial patch so apply some common sense.
> testing and await feedback.
>
> 5. Make a patch available to the relevant maintainer in the list. Use
> - 'diff -u' to make the patch easy to merge. Be prepared to get your
> + ``diff -u`` to make the patch easy to merge. Be prepared to get your
> changes sent back with seemingly silly requests about formatting
> and variable names. These aren't as silly as they seem. One
> job the maintainers (and especially Linus) do is to keep things
> @@ -38,7 +40,7 @@ trivial patch so apply some common sense.
> See Documentation/process/coding-style.rst for guidance here.
>
> PLEASE CC: the maintainers and mailing lists that are generated
> - by scripts/get_maintainer.pl. The results returned by the
> + by ``scripts/get_maintainer.pl.`` The results returned by the
> script will be best if you have git installed and are making
> your changes in a branch derived from Linus' latest git tree.
> See Documentation/process/submitting-patches.rst for details.
> @@ -74,22 +76,22 @@ trivial patch so apply some common sense.
>
> 8. Happy hacking.
>
> -Descriptions of section entries:
> +Descriptions of section entries
> +-------------------------------
>
> - P: Person (obsolete)
> - M: Mail patches to: FullName <address@...ain>
> - R: Designated reviewer: FullName <address@...ain>
> + M: *Mail* patches to: FullName <address@...ain>
> + R: Designated *Reviewer*: FullName <address@...ain>
> These reviewers should be CCed on patches.
> - L: Mailing list that is relevant to this area
> - W: Web-page with status/info
> - B: URI for where to file bugs. A web-page with detailed bug
> + L: *Mailing list* that is relevant to this area
> + W: *Web-page* with status/info
> + B: URI for where to file *bugs*. A web-page with detailed bug
> filing info, a direct bug tracker link, or a mailto: URI.
> - C: URI for chat protocol, server and channel where developers
> + C: URI for *chat* protocol, server and channel where developers
> usually hang out, for example irc://server/channel.
> - Q: Patchwork web based patch tracking system site
> - T: SCM tree type and location.
> + Q: *Patchwork* web based patch tracking system site
> + T: *SCM* tree type and location.
> Type is one of: git, hg, quilt, stgit, topgit
> - S: Status, one of the following:
> + S: *Status*, one of the following:
> Supported: Someone is actually paid to look after this.
> Maintained: Someone actually looks after it.
> Odd Fixes: It has a maintainer but they don't have time to do
> @@ -99,13 +101,13 @@ Descriptions of section entries:
> Obsolete: Old code. Something tagged obsolete generally means
> it has been replaced by a better system and you
> should be using that.
> - F: Files and directories with wildcard patterns.
> + F: *Files* and directories wildcard patterns.
> A trailing slash includes all files and subdirectory files.
> F: drivers/net/ all files in and below drivers/net
> F: drivers/net/* all files in drivers/net, but not below
> F: */net/* all files in "any top level directory"/net
> One pattern per line. Multiple F: lines acceptable.
> - N: Files and directories with regex patterns.
> + N: Files and directories *Regex* patterns.
> N: [^a-z]tegra all files whose path contains the word tegra
> One pattern per line. Multiple N: lines acceptable.
> scripts/get_maintainer.pl has different behavior for files that
> @@ -113,14 +115,14 @@ Descriptions of section entries:
> get_maintainer will not look at git log history when an F: pattern
> match occurs. When an N: match occurs, git log history is used
> to also notify the people that have git commit signatures.
> - X: Files and directories that are NOT maintained, same rules as F:
> - Files exclusions are tested before file matches.
> + X: *Excluded* files and directories that are NOT maintained, same
> + rules as F:. Files exclusions are tested before file matches.
> Can be useful for excluding a specific subdirectory, for instance:
> F: net/
> X: net/ipv6/
> matches all files in and below net excluding net/ipv6/
> - K: Keyword perl extended regex pattern to match content in a
> - patch or file. For instance:
> + K: *Content regex* (perl extended) pattern match in a patch or file.
> + For instance:
> K: of_get_profile
> matches patches or files that contain "of_get_profile"
> K: \b(printk|pr_(info|err))\b
> @@ -128,13 +130,12 @@ Descriptions of section entries:
> printk, pr_info or pr_err
> One regex pattern per line. Multiple K: lines acceptable.
>
> -Note: For the hard of thinking, this list is meant to remain in alphabetical
> -order. If you could add yourselves to it in alphabetical order that would be
> -so much easier [Ed]
> -
> -Maintainers List (try to look for most precise areas first)
> +Maintainers List
> +----------------
>
> - -----------------------------------
> +.. note:: When reading this list, please look for the most precise areas
> + first. When adding to this list, please keep the entries in
> + alphabetical order.
>
> 3C59X NETWORK DRIVER
> M: Steffen Klassert <klassert@...nel.org>
Thanks,
Mauro
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