summaryrefslogtreecommitdiff
path: root/mkluatexfontdb.lua
blob: 6342d2ba19f02cfbc98d22b9c9ab759ee1388616 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
#!/usr/bin/env texlua
-- This file is copyright 2010 Elie Roux and Khaled Hosny and is under CC0
-- license (see http://creativecommons.org/publicdomain/zero/1.0/legalcode).
--
-- This file is a wrapper for the luaotfload-fonts.lua script.
-- It is part of the luaotfload bundle, please see the luaotfload documentation
-- for more info.

--[[
 first we import luaotfload-fonts.lua.
 Basically it 'exports' three usefult things: the two overwritable variables
 - luaotfload.fonts.basename: the filename of the database
 - luaotfload.fonts.directory: the directory of the database
 and the function
 - luaotfload.fonts.generate: the function to generate the database
]]

kpse.set_program_name("luatex")

require("luaextra")
require("otfl-font-nms")
require("alt_getopt")

local name = 'mkluatexfontdb'
local version = '1.07' -- same version number as luaotfload

mkluatexfontdb = { } -- just for now, elie is rewriting it anyway
local names    = fonts.names
names.basename = names.basename or "otfl-names.lua"
names.version  = names.version  or 2.004

local log      = logs.report

local function help_msg()
    texio.write_nl(string.format([[Usage: %s [OPTION]...
    
Rebuild the LuaTeX font database.

Valid options:
  -d --dbdir DIRECTORY       writes the database in the specified directory
  -f --force                 force re-indexing all fonts
  -q --quiet                 don't output anything
  -v --verbose=LEVEL         be more verbose (print the searched directories)
  -vv                        print the loaded fonts
  -vvv                       print all steps of directory searching
  -V --version               prints the version and exits
  -h --help                  prints this message
  --fc-cache                 run fc-cache before updating database
                             (default is to run it if available)
  --no-fc-cache              do not run fc-cache
  --sys                      writes the database for the whole system
                             (default is only for the user)

The output database file is named otfl-fonts.lua.
]], name))
end

local function version_msg()
    texio.write_nl(string.format(
        "%s version %s, database version %s.\n", name, version, names.version))
end

--[[
 Command-line processing.
 Here we fill cmdargs with the good values, and then analyze it, setting
 luaotfload.fonts.log_level luaotfload.fonts.directory if necessary.
]]

local long_opts = {
    dbdir    = "d",
    force    = "f",
    quiet    = "q",
    verbose  = 1,
    version  = "V",
    help     = "h",
    sys      = 0,
    ['fc-cache']    = 0,
    ['no-fc-cache'] = 0,
}

local short_opts = "d:fqvVh"

-- Function running fc-cache if needed.
-- The argument is nil for default, 0 for no fc-cache and 1 for fc-cache.
-- Default behaviour is to run fc-cache if available.
local function do_run_fc_cache(c)
    if c == 0 then return end
    if not c then
      -- TODO: detect if fc-cache is available
    end
    local toexec = 'fc-cache'
    if system == 'windows' then
        toexec = 'fc-cache.exe' -- TODO: to test on a non-cygwin Windows
    end
    log('executing %s...\n', toexec)
    os.execute(toexec)
end

-- a temporary variable, containing the command line option concerning fc-cache
local run_fc_cache = nil
local force_reload = nil

local function process_cmdline()
    local opts, optind, optarg = alt_getopt.get_ordered_opts (arg, short_opts, long_opts)
    local log_level = 1
    for i,v in ipairs(opts) do
        if     v == "q" then
            log_level = 0
        elseif v == "v" then
            if log_level > 0 then
                log_level = log_level + 1
            else
                log_level = 2
            end
        elseif v == "V" then
            version_msg()
            os.exit(0)
        elseif v == "h" then
            help_msg()
            os.exit(0)
        elseif v == "d" then
            mkluatexfontdb.directory = optarg [i]
        elseif v == "f" then
            force_reload = 1
        elseif v == "fc-cache" then
            run_fc_cache = 1
        elseif v == "no-fc-cache" then
            run_fc_cache = 0
        elseif v == "sys" then
            mkluatexfontdb.directory = kpse.expand_var("$TEXMFSYSVAR") .. mkluatexfontdb.subtexmfvardir
        end
    end
    if string.match(arg[0], '-sys') then
        mkluatexfontdb.directory = kpse.expand_var("$TEXMFSYSVAR") .. mkluatexfontdb.subtexmfvardir
    end
    names.log_level = log_level
end

process_cmdline()
do_run_fc_cache(run_fc_cache)

-- the path to add to TEXMFVAR or TEXMFSYSVAR to get the final directory in
-- normal cases
mkluatexfontdb.subtexmfvardir = "/tex/"

-- the directory in which the database will be saved, can be overwritten
mkluatexfontdb.directory = kpse.expand_var("$TEXMFVAR") .. mkluatexfontdb.subtexmfvardir


local function generate(force)
    log("generating font names database.")
    local savepath = mkluatexfontdb.directory
    if not lfs.isdir(savepath) then
        log("creating directory %s", savepath)
        lfs.mkdir(savepath)
        if not lfs.isdir(savepath) then
            texio.write_nl(string.format("Error: cannot create directory '%s', exiting.\n", savepath))
            os.exit(1)
        end
    end
    savepath = savepath .. '/' .. names.basename
    local fh = io.open(savepath, 'a+')
    if not fh then
        texio.write_nl(string.format("Error: cannot write file '%s', exiting.\n", savepath))
        os.exit(1)
    end
    fh:close()
    local fontnames
    fontnames = dofile(kpse.find_file(names.basename))
    fontnames = names.update   (fontnames, force)
    log("%s fonts in %s families saved in the database",
        #fontnames.mappings, #table.keys(fontnames.families))
    io.savedata(savepath, table.serialize(fontnames, true))
    log("saved font names database in %s\n", savepath)
end

generate(force_reload)