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+--[[
+
+File l3build-help.lua Copyright (C) 2018 The LaTeX3 Project
+
+It may be distributed and/or modified under the conditions of the
+LaTeX Project Public License (LPPL), either version 1.3c of this
+license or (at your option) any later version. The latest version
+of this license is in the file
+
+ http://www.latex-project.org/lppl.txt
+
+This file is part of the "l3build bundle" (The Work in LPPL)
+and all files in that bundle must be distributed together.
+
+-----------------------------------------------------------------------
+
+The development version of the bundle can be found at
+
+ https://github.com/latex3/l3build
+
+for those people who are interested.
+
+--]]
+
+function version()
+ print(
+ "\n" ..
+ "l3build: A testing and building system for LaTeX\n\n" ..
+ "Release " .. release_date
+ )
+end
+
+function help()
+ print("usage: " .. arg[0] .. " <command> [<options>] [<names>]")
+ print("")
+ print("The most commonly used l3build commands are:")
+ if testfiledir ~= "" then
+ print(" check Run all automated tests")
+ end
+ print(" clean Clean out directory tree")
+ if module == "" or bundle == "" then
+ print(" ctan Create CTAN-ready archive")
+ end
+ print(" doc Typesets all documentation files")
+ print(" install Installs files into the local texmf tree")
+ if module ~= "" and testfiledir ~= "" then
+ print(" save Saves test validation log")
+ end
+ print(" tag Update release tags in files")
+ print(" uninstall Uninstalls files from the local texmf tree")
+ print(" unpack Unpacks the source files into the build tree")
+ print("")
+ print("Valid options are:")
+ local longest = 0
+ for k,v in pairs(option_list) do
+ if k:len() > longest then
+ longest = k:len()
+ end
+ end
+ -- Sort the options
+ local t = { }
+ for k,_ in pairs(option_list) do
+ table.insert(t, k)
+ end
+ table.sort(t)
+ for _,k in ipairs(t) do
+ local opt = option_list[k]
+ local filler = string.rep(" ", longest - k:len() + 1)
+ if opt["desc"] then -- Skip --help as it has no desc
+ if opt["short"] then
+ print(" --" .. k .. "|-" .. opt["short"] .. filler .. opt["desc"])
+ else
+ print(" --" .. k .. " " .. filler .. opt["desc"])
+ end
+ end
+ end
+ print("")
+ print("See l3build.pdf for further details.")
+end