[lltx] new tlmgr action

[Elie Roux]

Hello,

In the version of luaotfload that will be shipped with TeXLive 2010 
(http://github.com/khaledhosny/luaotfload) there is a script called 
mkluatexfontdb.lua that explores and analyses the fonts in TEXMF and 
OSFONTDIR (or through fc-list if OSFONTDIR is empty) and writes a 
database (a lua table) in 
TEXMFVAR/luatex/generic/luaotfload/names/otfl-names.lua. The info 
contained in the database are important and allow the user to choose a 
font with its name, as under XeTeX, through fontspec for example. The 
first pass is quite heavy (~30s) as all fonts need to be analyzed with 
the fontforge library of LuaTeX, but the other pass analyze only the new 
fonts and remove the old ones without parsing everything, so the 
execution is fast (~0.5s). The script is made to be executed with 
texlua; a recent one if possible, as an old one will produce huge 
memleaks. By default the script outputs a progression bar, but output 
can be disabled with the -q switch. The script makes active use of the 
file otfl-font-names.lua, which uses the files luaextra-file.lua, 
luaextra-table.lua of the luatextra package. It uses also alt-getopt.lua 
which is distributed on the ctan.

Would it be possible to:
 - execute the script at the end of the installation with tlmgr?
 - add a button or something in the menu to execute it? Or integrate it 
in another tlmgr update button?
 - have the scripts mkluatexfontdb and mkluatexfontdb-sys in the 
binaries of TeXLive? (the program automatically switches to TEXMFSYSVAR 
if called with a filename containing "-sys")

Thank you,
-- 
Elie