summaryrefslogtreecommitdiff
path: root/scripts/mkimport
blob: 1ee695b3c706cf5b782242bc27a28564786ba809 (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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
#!/usr/bin/env texlua
-------------------------------------------------------------------------------
--         FILE:  mkimport.lua
--        USAGE:  ./mkimport.lua
--  DESCRIPTION:  check luaotfload imports against Context
-- REQUIREMENTS:  luatex, the lualibs package, Context MkIV
--       AUTHOR:  Philipp Gesang (Phg), <phg@phi-gamma.net>
--      VERSION:  42
--      CREATED:  2014-12-08 22:36:15+0100
-------------------------------------------------------------------------------
--

-------------------------------------------------------------------------------
--- PURPOSE
--- 
---  - Facilitate detecting changes in the fontloader source.
---  - Assist in updating source code and (partially) automate importing.
---  - Account for files in the plain fontloader distribution, alert in case of
---    additions or deletions.
---    
-------------------------------------------------------------------------------

kpse.set_program_name "luatex"

local lfs = require "lfs"
local md5 = require "md5"

require "lualibs"

local ioloaddata   = io.loaddata
local iowrite      = io.write
local md5sumhexa   = md5.sumhexa
local stringformat = string.format

-------------------------------------------------------------------------------
-- config
-------------------------------------------------------------------------------

local context_root      = "/home/phg/context/tex/texmf-context"
local our_prefix        = "fontloader"
local fontloader_subdir = "src/fontloader"

local paths = {
  context    = "tex/context/base",
  fontloader = "tex/generic/context/luatex",
}

local prefixes = {
  context    = nil,
  fontloader = "luatex",
}

-------------------------------------------------------------------------------
-- helpers
-------------------------------------------------------------------------------

local die = function (...)
  io.stderr:write "[\x1b[1;30;41mfatal error\x1b[0m]: "
  io.stderr:write (stringformat (...))
  io.stderr:write "\naborting.\n"
  os.exit (1)
end

local emphasis = function (txt)
  return stringformat("\x1b[1m%s\x1b[0m", txt)
end

local msg = function (...)
  iowrite (stringformat (...))
  iowrite "\n"
end

local good_tag   = stringformat("[\x1b[1;30;%dmgood\x1b[0m]   · ", 42)
local bad_tag    = stringformat("[\x1b[1;30;%dmBAD\x1b[0m]    · ", 41)
local alert_tag  = stringformat("[\x1b[1;%dmalert\x1b[0m]  · "   , 36)
local status_tag = stringformat("[\x1b[0;%dmstatus\x1b[0m] · "   , 36)

local good = function (...)
  local msg = (stringformat (...))
  iowrite (good_tag)
  iowrite (msg)
  iowrite "\n"
end

local bad = function (...)
  local msg = (stringformat (...))
  iowrite (bad_tag)
  iowrite (msg)
  iowrite "\n"
end

local attention = function (...)
  local msg = (stringformat (...))
  iowrite (alert_tag)
  iowrite (msg)
  iowrite "\n"
end

local status = function (...)
  local msg = (stringformat (...))
  iowrite (status_tag)
  iowrite (msg)
  iowrite "\n"
end

-------------------------------------------------------------------------------
-- definitions
-------------------------------------------------------------------------------

--- Accounting of upstream files. There are different categories:
---
---   · *essential*: Files required at runtime.
---   · *merged*:    Files merged into the fontloader package.
---   · *ignored*:   Lua files not merged, but part of the format.
---   · *tex*:       TeX code, i.e. format and examples.
---   · *lualibs*:   Files merged, but also provided by the Lualibs package.

local kind_essential = 0
local kind_merged    = 1
local kind_tex       = 2
local kind_ignored   = 3
local kind_lualibs   = 4

local imports = {

  fontloader = {
    { name = "basics-gen"        , ours = nil          , kind = kind_essential },
    { name = "basics-nod"        , ours = nil          , kind = kind_merged    },
    { name = "basics"            , ours = nil          , kind = kind_tex       },
    { name = "fonts-cbk"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-def"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-demo-vf-1"   , ours = nil          , kind = kind_ignored   },
    { name = "fonts-enc"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-ext"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-inj"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-lua"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-merged"      , ours = "fontloader" , kind = kind_essential },
    { name = "fonts-ota"         , ours = nil          , kind = kind_merged    },
    { name = "fonts-otn"         , ours = nil          , kind = kind_merged    },
    { name = "fonts"             , ours = nil          , kind = kind_merged    },
    { name = "fonts"             , ours = nil          , kind = kind_tex       },
    { name = "fonts-syn"         , ours = nil          , kind = kind_ignored   },
    { name = "fonts-tfm"         , ours = nil          , kind = kind_merged    },
    { name = "languages"         , ours = nil          , kind = kind_ignored   },
    { name = "languages"         , ours = nil          , kind = kind_tex       },
    { name = "math"              , ours = nil          , kind = kind_ignored   },
    { name = "math"              , ours = nil          , kind = kind_tex       },
    { name = "mplib"             , ours = nil          , kind = kind_ignored   },
    { name = "mplib"             , ours = nil          , kind = kind_tex       },
    { name = "plain"             , ours = nil          , kind = kind_tex       },
    { name = "preprocessor"      , ours = nil          , kind = kind_ignored   },
    { name = "preprocessor"      , ours = nil          , kind = kind_tex       },
    { name = "preprocessor-test" , ours = nil          , kind = kind_tex       },
    { name = "swiglib"           , ours = nil          , kind = kind_ignored   },
    { name = "swiglib"           , ours = nil          , kind = kind_tex       },
    { name = "swiglib-test"      , ours = nil          , kind = kind_ignored   },
    { name = "swiglib-test"      , ours = nil          , kind = kind_tex       },
    { name = "test"              , ours = nil          , kind = kind_tex       },
  }, --[[ [fontloader] ]]

  context = { --=> all merged
    { name = "data-con"          , ours = "data-con"          , kind = kind_merged    },
    { name = "font-afk"          , ours = "font-afk"          , kind = kind_merged    },
    { name = "font-afm"          , ours = "font-afm"          , kind = kind_merged    },
    { name = "font-cid"          , ours = "font-cid"          , kind = kind_merged    },
    { name = "font-con"          , ours = "font-con"          , kind = kind_merged    },
    { name = "font-def"          , ours = "font-def"          , kind = kind_merged    },
    { name = "font-ini"          , ours = "font-ini"          , kind = kind_merged    },
    { name = "font-map"          , ours = "font-map"          , kind = kind_merged    },
    { name = "font-otb"          , ours = "font-otb"          , kind = kind_merged    },
    { name = "font-otf"          , ours = "font-otf"          , kind = kind_merged    },
    { name = "font-oti"          , ours = "font-oti"          , kind = kind_merged    },
    { name = "font-otp"          , ours = "font-otp"          , kind = kind_merged    },
    { name = "font-tfm"          , ours = "font-tfm"          , kind = kind_merged    },
    { name = "l-boolean"         , ours = "l-boolean"         , kind = kind_lualibs   },
    { name = "l-file"            , ours = "l-file"            , kind = kind_lualibs   },
    { name = "l-function"        , ours = "l-function"        , kind = kind_lualibs   },
    { name = "l-io"              , ours = "l-io"              , kind = kind_lualibs   },
    { name = "l-lpeg"            , ours = "l-lpeg"            , kind = kind_lualibs   },
    { name = "l-lua"             , ours = "l-lua"             , kind = kind_lualibs   },
    { name = "l-math"            , ours = "l-math"            , kind = kind_lualibs   },
    { name = "l-string"          , ours = "l-string"          , kind = kind_lualibs   },
    { name = "l-table"           , ours = "l-table"           , kind = kind_lualibs   },
    { name = "util-str"          , ours = "util-str"          , kind = kind_lualibs   },
  }, --[[ [context] ]]
} --[[ [imports] ]]

local hash_file = function (fname)
  if not lfs.isfile (fname) then
    die ("cannot find %s.", fname)
  end
  local raw = ioloaddata (fname)
  if not raw then
    die ("cannot read from %s.", fname)
  end
  return md5sumhexa (raw)
end

local derive_category_path = function (cat)
  local subpath  = paths[cat] or die ("category " .. cat .. " unknown")
  local location = file.join (context_root, subpath)
  if not lfs.isdir (location) then
    die ("invalid base path defined for category "
         .. cat .. " at " .. location)
  end
  return location
end

local derive_fullname = function (cat, name, kind)
  local tmp = prefixes[cat]
  tmp = tmp and tmp .. "-" .. name or name
  return tmp .. (kind == kind_tex and ".tex" or ".lua")
end

local derive_ourname = function (name, kind)
  local suffix = kind == kind_tex and ".tex" or ".lua"
  return our_prefix .. "-" .. name .. suffix
end

local is_readable = function (f)
  local fh = io.open (f, "r")
  if fh then
    fh:close()
    return true
  end
  return false
end

local summarize_news = function (status)
  local ni = #status.import
  local nc = #status.create
  local ng = #status.good
  local nm = #status.missing

  msg "-----------------------------------------------------------------"
  msg ("Summary: Inspected %d files.", ni + nc + ng + nm)
  msg "-----------------------------------------------------------------"
  if ng > 0 then good      ("%d are up to date", ng) end
  if ni > 0 then attention ("%d changed"       , ni) end
  if nc > 0 then attention ("%d new"           , nc) end
  if nm > 0 then bad       ("%d missing"       , nm) end
  msg "-----------------------------------------------------------------"

  if nm == 0 and nc == 0 and ni == 0 then
    return 0
  end

  return -1
end

local news = function ()
  local status = {
    import  = { },
    good    = { },
    create  = { },
    missing = { },
  }

  for cat, entries in next, imports do
    local location = derive_category_path (cat)
    local nfiles = #entries

    for i = 1, nfiles do
      local def  = entries[i]
      local name = def.name
      local ours = def.ours
      local kind = def.kind
      local fullname = derive_fullname (cat, name, kind)
      local fullpath = file.join (location, fullname)
      local ourname  = derive_ourname (ours or name)
      local ourpath  = file.join (fontloader_subdir, ourname) -- relative
      local imported = false

      if not is_readable (fullpath) then
        bad ("source for file %s not found at %s",
             emphasis (ourname),
             emphasis (fullpath))
        status.missing[#status.missing + 1] = ourname
      else
        --- Source file exists and is readable.
        if not lfs.isdir (fontloader_subdir) then
          die ("path for fontloader tree ("
              .. fontloader_subdir .. ") is not a directory")
        end
        if is_readable (ourpath) then imported = true end
        local src_hash = hash_file (fullpath)
        local dst_hash = imported and hash_file (ourpath)
        local same     = src_hash == dst_hash -- same!

        if same then
          good ("file %s unchanged", emphasis (ourname))
          status.good[#status.good + 1] = ourname
        elseif not dst_hash then
          attention ("new file %s requires import from %s",
                    emphasis (ourname),
                    emphasis (fullpath))
          status.create[#status.create + 1] = ourname
        else --- src and dst exist but differ
          attention ("file %s requires import", emphasis (ourname))
          status.import[#status.import + 1] = ourname
        end
      end

    end
  end

  return summarize_news (status)
end --[[ [local news = function ()] ]]

local get_file_definition = function (name, ourname, kind)
  kind = kind or "lua"
  for cat, defs in next, imports do
    local fullname = derive_fullname (cat, name, kind)
    local ndefs = #defs
    for i = 1, ndefs do
      local def = defs[i]
      local dname = def.name
      local dours = def.ours or def.name
      local dkind = def.kind

      --- test properties
      if       derive_ourname (dours, dkind) == ourname  then return def, cat end
      if derive_fullname (cat, dname, dkind) == fullname then return def, cat end
      if                               dours == ourname  then return def, cat end
      if                               dname == fullname then return def, cat end
    end
  end
  --- search unsuccessful
end --[[ [local get_file_definition = function (name, ourname, kind)] ]]

local import_imported = 0
local import_skipped  = 1
local import_failed   = 2
local import_created  = 3

local import_status = {
  [import_imported] = "imported",
  [import_skipped ] = "skipped",
  [import_failed  ] = "failed",
  [import_created ] = "created",
}

local summarize_status = function (counters)
  local imported = counters[import_imported] or 0
  local skipped  = counters[import_skipped ] or 0
  local created  = counters[import_created ] or 0
  local failed   = counters[import_failed  ] or 0
  local sum = imported + skipped + created + failed
  if sum < 1 then die ("garbage total of imported files: %s", sum) end
  status ("-----------------------------------------------------------------")
  status (" RESULT: %d files processed", sum)
  status ("-----------------------------------------------------------------")
  if created  > 0 then status ("created:  %d (%d %%)", created , created  * 100 / sum) end
  if imported > 0 then status ("imported: %d (%d %%)", imported, imported * 100 / sum) end
  if skipped  > 0 then status ("skipped:  %d (%d %%)", skipped , skipped  * 100 / sum) end
  status ("-----------------------------------------------------------------")
end

local import_file = function (name, kind, def, cat)
  local expected_ourname = derive_ourname (name)
  if not def or not cat then
    def, cat = get_file_definition (name, expected_ourname, kind)
  end

  if not def then die ("unable to find a definition matching " .. name) end
  if not cat then die ("missing category for file " .. name .. " -- WTF‽") end

  local dname    = def.name
  local dours    = def.ours
  local dkind    = def.kind
  local srcdir   = derive_category_path (cat)
  local fullname = derive_fullname (cat, dname, kind)
  local ourname  = derive_ourname (dname, kind)
  local src      = file.join (srcdir, fullname)
  local dst      = file.join (fontloader_subdir, ourname)
  local new      = not lfs.isfile (dst)
  if not new and hash_file (src) == hash_file (dst) then
    status ("file %s is unchanged, skipping", fullname)
    return import_skipped
  end
  status ("importing file %s", fullname)
  file.copy (src, dst)
  if hash_file (src) == hash_file (dst) then
    if new then return import_created end
    return import_imported end
  return import_failed
end --[[ [local import_file = function (name, kind)] ]]

local import = function (arg)
  if #arg > 1 then
    local name = arg[2] or die ("invalid filename " .. tostring (arg[2]))
    local stat = import_file (name)
    if stat == import_failed then
      die ("failed to import file " .. name)
    end
    status ("import status for file %s: %s", name, import_status[stat])
  end
  --- Multiple files
  local statcount = { } -- import status codes -> size_t
  for cat, defs in next, imports do
    local ndefs = #defs
    for i = 1, ndefs do
      local def  = defs[i]
      local stat = import_file (def.name, def.kind, def, cat)
      if stat == import_failed then
        die (stringformat ("import failed at file %d of %d (%s)",
                           i, ndefs, def.name))
      end
      statcount[stat] = statcount[stat] or 0
      statcount[stat] = statcount[stat] + 1
    end
  end
  summarize_status (statcount)
  return 0
end --[[ [local import = function (arg)] ]]

local job_kind = table.mirrored {
  news   = news,
  import = import,
  tell   = function () end,
}

-------------------------------------------------------------------------------
-- functionality
-------------------------------------------------------------------------------

--- job_kind -> bool
local check_job = function (j)
  return job_kind[j] or die ("invalid job type “" .. job .. "”.")
end

-------------------------------------------------------------------------------
-- entry point
-------------------------------------------------------------------------------

local main = function ()
  local job = arg[1] or "news"
  local runner = check_job (job)
  return runner(arg)
end

os.exit (main ())

--- vim:ft=lua:ts=2:et:sw=2