Hi Hans,
On Wed, 2026-02-18 at 22:26 +0100, Hans Hagen via ntg-context wrote:
> One of these days we have the texlive code freeze and normally we make a
> stable snapshot for that so that we have a reference. Keep in mind that
> texlive as any distribution makes choices and as a result some files
> lack and we don't want surprised. There might even be changes in the way
> things are configured. We treat it as an abstraction.
On that note, about 2 weeks ago, I added some TeX Live-specific fields
to the texmfcnf.lua file used there (full file attached). The fields are
-- These next four entries aren't used by anything (yet), but they're placed
-- here in case the core ConTeXt code wants to use it to blame me for any
-- issues :)
-- Information about who provided this installation of ConTeXt. If you
modify
-- this file (or any of the other ConTeXt files) and redistribute these
changes,
-- you should also change these values to something appropriate for your
-- distribution.
distribution_name = "TeX Live",
report_bugs_to = "https://github.com/gucci-on-fleek/context-packaging";,
-- Sometimes TeX Live needs to release more than one update for a single
-- upstream ConTeXt release, so TeX Live adds a single uppercase letter
suffix
-- to the version number for each update. A suffix of "A" indicates the
first
-- release (this is the most common case), "B" indicates the second
release, and
-- so on. If you are a downstream distributor, you can use this field for
your
-- own purposes; any string is valid, but it should be unique for each
release
-- for any given upstream version of ConTeXt.
distribution_revision = "A",
-- In case distributors have modified the above three variables, we'll add a
-- static variable here so that it's clear whether this file was based
-- directly off of the original "texmfcnf.lua" file from the upstream
-- ConTeXt Standalone Distribution, or from the TeX Live distribution's
-- modified version.
derived_from = "TeX Live (2026-02-12 13:41 A)",
The build process ensures that this information is always up-to-date, so
it might be a good idea to put some/all of this information in the log
file on every compile or in the output from "context --version".
I just arbitrarily decided on these names, so let me know if you want me
to rename any of these variables, place them in a different file, add
different information, etc. And as always, feel free to let me know if
there's anything specific you want me to change in TL.
Thanks,
-- Max
-- ConTeXt Packaging Scripts
-- https://github.com/gucci-on-fleek/context-packaging
-- SPDX-License-Identifier: GPL-2.0-or-later
-- SPDX-FileCopyrightText: 2024 Hans Hagen
-- SPDX-FileCopyrightText: 2026 Max Chernoff
-- Note that this file will be overwritten on upgrades, so users should place
-- any modifications in another location!
-- It is recommended that downstream distributors only modify the variables in
-- the following section (although you can modify any other section if you know
-- what you are doing).
--- BEGIN RECOMMENDED MODIFICATIONS SECTION ---
-- Information about who provided this installation of ConTeXt. If you modify
-- this file (or any of the other ConTeXt files) and redistribute these changes,
-- you should also change these values to something appropriate for your
-- distribution.
local distribution_name = "TeX Live"
local report_bugs_to = "https://github.com/gucci-on-fleek/context-packaging";
-- Sometimes TeX Live needs to release more than one update for a single
-- upstream ConTeXt release, so TeX Live adds a single uppercase letter suffix
-- to the version number for each update. A suffix of "A" indicates the first
-- release (this is the most common case), "B" indicates the second release, and
-- so on. If you are a downstream distributor, you can use this field for your
-- own purposes; any string is valid, but it should be unique for each release
-- for any given upstream version of ConTeXt.
local distribution_revision = "A"
-- The location of the distribution's TEXMF tree. The contents stored in this
-- path should not be modified by users.
local distribution_path = "selfautoparent:texmf-dist"
-- Where ConTeXt should store any caches.
local system_cache = "selfautoparent:"
local user_cache = "home:.texlive2025"
-- Where ConTeXt should search for custom files.
local system_data = "selfautoparent:../texmf-local"
local user_data = "home:texmf"
-- The location of non-TeX files optionally used by ConTeXt.
local nontex_fonts, nontex_colors
if os.type == "windows" then
nontex_fonts = "\z
home:AppData/Local/Microsoft/Windows/Fonts;\z
C:/Windows/Fonts;\z
"
nontex_colors = "" -- No idea where this is on Windows; patches welcome
elseif os.name == "macosx" then
nontex_fonts = "\z
home:Library/Fonts;\z
/Library/Fonts;\z
/System/Library/Fonts;\z
"
nontex_colors = "" -- No idea where this is on macOS; patches welcome
else -- Linux, BSD, etc.
nontex_fonts = "\z
home:.local/share/fonts;\z
/usr/local/share/fonts//;\z
/usr/share/fonts//;\z
"
nontex_colors = "\z
home:.local/share/icc//;\z
/usr/local/share/color/icc//;\z
/usr/share/color/icc//;\z
"
end
-- Programs that should be allowed to run in restricted mode. Note that this is
-- provided as a convenience feature only, and is **NOT** a security feature.
-- Users must not compile untrusted ConTeXt documents without using external
-- sandboxing mechanisms (Docker, Bubblewrap, systemd-run, etc.). ConTeXt runs
-- in unrestricted mode by default, meaning that this list is ignored entirely
-- and documents can freely execute arbitrary programs.
local allowed_programs = table.concat({
"bibtex",
"bibtex8",
"extractbb",
"gregorio",
"kpsewhich",
"l3sys-query",
"latexminted",
"makeindex",
"memoize-extract.pl",
"memoize-extract.py",
"r-mpost",
"repstopdf",
"texosquery-jre8",
}, ",")
--- END RECOMMENDED MODIFICATIONS SECTION ---
return {
-- Metadata about this configuration file. (Copied from the original
-- "texlivecnf.lua" file in the upstream ConTeXt Standalone Distribution.)
type = "configuration",
version = "1.1.3",
date = "2024-02-10",
time = "14:59:00",
comment = "ConTeXt MkIV and LMTX configuration file",
author = "Hans Hagen & Max Chernoff",
target = "texlive",
-- These next four entries aren't used by anything (yet), but they're placed
-- here in case the core ConTeXt code wants to use it to blame me for any
-- issues :)
distribution_name = distribution_name,
report_bugs_to = report_bugs_to,
distribution_revision = distribution_revision,
-- In case distributors have modified the above three variables, we'll add a
-- static variable here so that it's clear whether this file was based
-- directly off of the original "texmfcnf.lua" file from the upstream
-- ConTeXt Standalone Distribution, or from the TeX Live distribution's
-- modified version.
derived_from = "TeX Live (2026-02-12 13:41 A)",
-- Here are the "real" variables that affect ConTeXt's runtime behaviour.
content = {
-- File/directory locations
variables = {
-- System trees
TEXMFDIST = distribution_path,
TEXMFLOCAL = system_data,
TEXMFSYSCONFIG = system_cache .. "/texmf-config",
TEXMFSYSVAR = system_cache .. "/texmf-var",
-- User trees
TEXMFCONFIG = user_cache .. "/texmf-config",
TEXMFVAR = user_cache .. "/texmf-var",
TEXMFHOME = user_data,
-- Search paths
TEXMFCACHE = "$TEXMFSYSVAR;$TEXMFVAR",
TEXMF = "{\z
$TEXMFCONFIG,\z
$TEXMFHOME,\z
!!$TEXMFSYSCONFIG,\z
!!$TEXMFSYSVAR,\z
!!$TEXMFLOCAL,\z
!!$TEXMFDIST\z
}",
-- Input locations: TeX
TEXINPUTS = ".;$TEXMF/tex/{context,generic,luatex}//",
-- Input locations: Fonts
TTFONTS = ".;" .. nontex_fonts ..
"$TEXMF/fonts/truetype//;$OSFONTDIR",
OPENTYPEFONTS = ".;" .. nontex_fonts ..
"$TEXMF/fonts/opentype//;$OSFONTDIR",
FONTCONFIG_PATH = "$TEXMFSYSVAR/fonts/conf",
OSFONTDIR = nontex_fonts,
-- Input locations: Lua
TEXMFSCRIPTS = ".;$TEXMF/scripts/context//;$TEXINPUTS",
LUAINPUTS = ".;$TEXINPUTS;$TEXMF/scripts/context/lua//",
CLUAINPUTS = "$SELFAUTOLOC/lib/$engine//", -- No "."; insecure
-- Input locations: Other
MPINPUTS = ".;$TEXMF/metapost//",
BIBINPUTS = ".;$TEXMF/bibtex/bib//;$TEXMF/tex/context/bib//",
ICCPROFILES = ".;" .. nontex_colors ..
"$TEXMF/tex/context/colors//;$OSCOLORDIR",
},
-- Engine parameters. These were copied from the original ConTeXt file;
-- don't change these unless you know what you are doing!
directives = {
-- LuaMetaTeX engine parameters
["luametatex.errorlinesize"] = { size = 250 }, -- max = 255
["luametatex.halferrorlinesize"] = { size = 250 }, -- max = 255
["luametatex.expandsize"] = { size = 10000 }, -- max = 1000000
["luametatex.stringsize"] = { size = 500000, step = 100000 }, -- max = 2097151 -- number of strings
["luametatex.poolsize"] = { size = 10000000, step = 1000000 }, -- max = 100000000 -- chars in string
["luametatex.hashsize"] = { size = 250000, step = 100000 }, -- max = 2097151
["luametatex.nodesize"] = { size = 50000000, step = 500000 }, -- max = 50000000
["luametatex.tokensize"] = { size = 10000000, step = 250000 }, -- max = 10000000
["luametatex.buffersize"] = { size = 10000000, step = 1000000 }, -- max = 100000000
["luametatex.inputsize"] = { size = 100000, step = 10000 }, -- max = 100000 -- aka stack
["luametatex.filesize"] = { size = 2000, step = 200 }, -- max = 2000
["luametatex.nestsize"] = { size = 10000, step = 1000 }, -- max = 10000
["luametatex.parametersize"] = { size = 100000, step = 10000 }, -- max = 100000
["luametatex.savesize"] = { size = 500000, step = 10000 }, -- max = 500000
["luametatex.fontsize"] = { size = 100000, step = 250 }, -- max = 100000
["luametatex.languagesize"] = { size = 250, step = 250 }, -- max = 10000
["luametatex.marksize"] = { size = 250, step = 50 }, -- max = 10000
["luametatex.insertsize"] = { size = 250, step = 25 }, -- max = 250
-- LuaTeX engine parameters
["luatex.errorline"] = 250,
["luatex.halferrorline"] = 125,
["luatex.expanddepth"] = 10000,
["luatex.hashextra"] = 100000,
["luatex.nestsize"] = 1000,
["luatex.maxinopen"] = 500,
["luatex.maxprintline"] = 10000,
["luatex.maxstrings"] = 500000,
["luatex.paramsize"] = 25000,
["luatex.savesize"] = 100000,
["luatex.stacksize"] = 100000,
-- mtxrun parameters
["system.errorcontext"] = "10",
["system.compile.cleanup"] = "no", -- remove tma files
["system.compile.strip"] = "yes", -- strip tmc files
-- I/O restrictions
["system.outputmode"] = "restricted",
["system.inputmode"] = "any",
-- Execution restrictions
["system.commandmode"] = "list", -- none | list | all
["system.executionmode"] = "list", -- none | list | all
["system.commandlist"] = allowed_programs,
["system.executionlist"] = allowed_programs,
["system.librarymode"] = "none", -- none | list | all
-- Metapost
["mplib.texerrors"] = "yes",
},
},
}
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