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Diffstat (limited to 'tex/context/base/luat-tmp.lua')
| -rw-r--r-- | tex/context/base/luat-tmp.lua | 433 |
1 files changed, 0 insertions, 433 deletions
diff --git a/tex/context/base/luat-tmp.lua b/tex/context/base/luat-tmp.lua deleted file mode 100644 index 1e3f55380..000000000 --- a/tex/context/base/luat-tmp.lua +++ /dev/null @@ -1,433 +0,0 @@ -if not modules then modules = { } end modules ['luat-tmp'] = { - version = 1.001, - comment = "companion to luat-lib.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - ---[[ldx-- -<p>This module deals with caching data. It sets up the paths and -implements loaders and savers for tables. Best is to set the -following variable. When not set, the usual paths will be -checked. Personally I prefer the (users) temporary path.</p> - -</code> -TEXMFCACHE=$TMP;$TEMP;$TMPDIR;$TEMPDIR;$HOME;$TEXMFVAR;$VARTEXMF;. -</code> - -<p>Currently we do no locking when we write files. This is no real -problem because most caching involves fonts and the chance of them -being written at the same time is small. We also need to extend -luatools with a recache feature.</p> ---ldx]]-- - -local format = string.format - -caches = caches or { } -dir = dir or { } -texmf = texmf or { } - -caches.path = caches.path or nil -caches.base = caches.base or "luatex-cache" -caches.more = caches.more or "context" -caches.direct = false -- true is faster but may need huge amounts of memory -caches.trace = false -caches.tree = false -caches.paths = caches.paths or nil -caches.force = false -caches.defaults = { "TEXMFCACHE", "TMPDIR", "TEMPDIR", "TMP", "TEMP", "HOME", "HOMEPATH" } - -function caches.temp() - local cachepath = nil - local function check(list,isenv) - if not cachepath then - for _, v in ipairs(list) do - cachepath = (isenv and (os.env[v] or "")) or v or "" - if cachepath == "" then - -- next - else - cachepath = input.clean_path(cachepath) - if lfs.isdir(cachepath) and file.iswritable(cachepath) then -- lfs.attributes(cachepath,"mode") == "directory" - break - elseif caches.force or io.ask(format("\nShould I create the cache path %s?",cachepath), "no", { "yes", "no" }) == "yes" then - dir.mkdirs(cachepath) - if lfs.isdir(cachepath) and file.iswritable(cachepath) then - break - end - end - end - cachepath = nil - end - end - end - check(input.clean_path_list("TEXMFCACHE") or { }) - check(caches.defaults,true) - if not cachepath then - print("\nfatal error: there is no valid (writable) cache path defined\n") - os.exit() - elseif not lfs.isdir(cachepath) then -- lfs.attributes(cachepath,"mode") ~= "directory" - print(format("\nfatal error: cache path %s is not a directory\n",cachepath)) - os.exit() - end - cachepath = input.normalize_name(cachepath) - function caches.temp() - return cachepath - end - return cachepath -end - -function caches.configpath() - return table.concat(input.instance.cnffiles,";") -end - -function caches.hashed(tree) - return md5.hex((tree:lower()):gsub("[\\\/]+","/")) -end - ---~ tracing: - ---~ function caches.hashed(tree) ---~ tree = (tree:lower()):gsub("[\\\/]+","/") ---~ local hash = md5.hex(tree) ---~ if input.verbose then -- temp message ---~ input.report("hashing %s => %s",tree,hash) ---~ end ---~ return hash ---~ end - -function caches.treehash() - local tree = caches.configpath() - if not tree or tree == "" then - return false - else - return caches.hashed(tree) - end -end - -function caches.setpath(...) - if not caches.path then - if not caches.path then - caches.path = caches.temp() - end - caches.path = input.clean_path(caches.path) -- to be sure - if lfs then - caches.tree = caches.tree or caches.treehash() - if caches.tree then - caches.path = dir.mkdirs(caches.path,caches.base,caches.more,caches.tree) - else - caches.path = dir.mkdirs(caches.path,caches.base,caches.more) - end - end - end - if not caches.path then - caches.path = '.' - end - caches.path = input.clean_path(caches.path) - if lfs and not table.is_empty({...}) then - local pth = dir.mkdirs(caches.path,...) - return pth - end - caches.path = dir.expand_name(caches.path) - return caches.path -end - -function caches.definepath(category,subcategory) - return function() - return caches.setpath(category,subcategory) - end -end - -function caches.setluanames(path,name) - return path .. "/" .. name .. ".tma", path .. "/" .. name .. ".tmc" -end - -function caches.loaddata(path,name) - local tmaname, tmcname = caches.setluanames(path,name) - local loader = loadfile(tmcname) or loadfile(tmaname) - if loader then - return loader() - else - return false - end -end - -function caches.is_writable(filepath,filename) - local tmaname, tmcname = caches.setluanames(filepath,filename) - return file.is_writable(tmaname) -end - -function caches.savedata(filepath,filename,data,raw) - local tmaname, tmcname = caches.setluanames(filepath,filename) - local reduce, simplify = true, true - if raw then - reduce, simplify = false, false - end - if caches.direct then - file.savedata(tmaname, table.serialize(data,'return',true,true,false)) -- no hex - else - table.tofile(tmaname, data,'return',true,true,false) -- maybe not the last true - end - local cleanup = input.boolean_variable("PURGECACHE", false) - local strip = input.boolean_variable("LUACSTRIP", true) - utils.lua.compile(tmaname, tmcname, cleanup, strip) -end - --- here we use the cache for format loading (texconfig.[formatname|jobname]) - ---~ if tex and texconfig and texconfig.formatname and texconfig.formatname == "" then -if tex and texconfig and (not texconfig.formatname or texconfig.formatname == "") and input and input.instance then - if not texconfig.luaname then texconfig.luaname = "cont-en.lua" end -- or luc - texconfig.formatname = caches.setpath("formats") .. "/" .. texconfig.luaname:gsub("%.lu.$",".fmt") -end - ---[[ldx-- -<p>Once we found ourselves defining similar cache constructs -several times, containers were introduced. Containers are used -to collect tables in memory and reuse them when possible based -on (unique) hashes (to be provided by the calling function).</p> - -<p>Caching to disk is disabled by default. Version numbers are -stored in the saved table which makes it possible to change the -table structures without bothering about the disk cache.</p> - -<p>Examples of usage can be found in the font related code.</p> ---ldx]]-- - -containers = { } -containers.trace = false - -do -- local report - - local function report(container,tag,name) - if caches.trace or containers.trace or container.trace then - logs.report(format("%s cache",container.subcategory),"%s: %s",tag,name or 'invalid') - end - end - - local allocated = { } - - -- tracing - - function containers.define(category, subcategory, version, enabled) - return function() - if category and subcategory then - local c = allocated[category] - if not c then - c = { } - allocated[category] = c - end - local s = c[subcategory] - if not s then - s = { - category = category, - subcategory = subcategory, - storage = { }, - enabled = enabled, - version = version or 1.000, - trace = false, - path = caches.setpath(category,subcategory), - } - c[subcategory] = s - end - return s - else - return nil - end - end - end - - function containers.is_usable(container, name) - return container.enabled and caches.is_writable(container.path, name) - end - - function containers.is_valid(container, name) - if name and name ~= "" then - local storage = container.storage[name] - return storage and not table.is_empty(storage) and storage.cache_version == container.version - else - return false - end - end - - function containers.read(container,name) - if container.enabled and not container.storage[name] then - container.storage[name] = caches.loaddata(container.path,name) - if containers.is_valid(container,name) then - report(container,"loaded",name) - else - container.storage[name] = nil - end - end - if container.storage[name] then - report(container,"reusing",name) - end - return container.storage[name] - end - - function containers.write(container, name, data) - if data then - data.cache_version = container.version - if container.enabled then - local unique, shared = data.unique, data.shared - data.unique, data.shared = nil, nil - caches.savedata(container.path, name, data) - report(container,"saved",name) - data.unique, data.shared = unique, shared - end - report(container,"stored",name) - container.storage[name] = data - end - return data - end - - function containers.content(container,name) - return container.storage[name] - end - -end - --- since we want to use the cache instead of the tree, we will now --- reimplement the saver. - -local save_data = input.aux.save_data -local load_data = input.aux.load_data - -input.cachepath = nil -- public, for tracing -input.usecache = true -- public, for tracing - -function input.aux.save_data(dataname, check) - save_data(dataname, check, function(cachename,dataname) - input.usecache = not toboolean(input.expansion("CACHEINTDS") or "false",true) - if input.usecache then - input.cachepath = input.cachepath or caches.definepath("trees") - return file.join(input.cachepath(),caches.hashed(cachename)) - else - return file.join(cachename,dataname) - end - end) -end - -function input.aux.load_data(pathname,dataname,filename) - load_data(pathname,dataname,filename,function(dataname,filename) - input.usecache = not toboolean(input.expansion("CACHEINTDS") or "false",true) - if input.usecache then - input.cachepath = input.cachepath or caches.definepath("trees") - return file.join(input.cachepath(),caches.hashed(pathname)) - else - if not filename or (filename == "") then - filename = dataname - end - return file.join(pathname,filename) - end - end) -end - --- we will make a better format, maybe something xml or just text or lua - -input.automounted = input.automounted or { } - -function input.automount(usecache) - local mountpaths = input.clean_path_list(input.expansion('TEXMFMOUNT')) - if table.is_empty(mountpaths) and usecache then - mountpaths = { caches.setpath("mount") } - end - if not table.is_empty(mountpaths) then - input.starttiming(input.instance) - for k, root in pairs(mountpaths) do - local f = io.open(root.."/url.tmi") - if f then - for line in f:lines() do - if line then - if line:find("^[%%#%-]") then -- or %W - -- skip - elseif line:find("^zip://") then - input.report("mounting %s",line) - table.insert(input.automounted,line) - input.usezipfile(line) - end - end - end - f:close() - end - end - input.stoptiming(input.instance) - end -end - --- store info in format - -input.storage = { } -input.storage.data = { } -input.storage.min = 0 -- 500 -input.storage.max = input.storage.min - 1 -input.storage.trace = false -- true -input.storage.done = input.storage.done or 0 -input.storage.evaluators = { } --- (evaluate,message,names) - -function input.storage.register(...) - input.storage.data[#input.storage.data+1] = { ... } -end - -function input.storage.evaluate(name) - input.storage.evaluators[#input.storage.evaluators+1] = name -end - -function input.storage.finalize() -- we can prepend the string with "evaluate:" - for _, t in ipairs(input.storage.evaluators) do - for i, v in pairs(t) do - if type(v) == "string" then - t[i] = loadstring(v)() - elseif type(v) == "table" then - for _, vv in pairs(v) do - if type(vv) == "string" then - t[i] = loadstring(vv)() - end - end - end - end - end -end - -function input.storage.dump() - for name, data in ipairs(input.storage.data) do - local evaluate, message, original, target = data[1], data[2], data[3] ,data[4] - local name, initialize, finalize, code = nil, "", "", "" - for str in target:gmatch("([^%.]+)") do - if name then - name = name .. "." .. str - else - name = str - end - initialize = format("%s %s = %s or {} ", initialize, name, name) - end - if evaluate then - finalize = "input.storage.evaluate(" .. name .. ")" - end - input.storage.max = input.storage.max + 1 - if input.storage.trace then - logs.report('storage','saving %s in slot %s',message,input.storage.max) - code = - initialize .. - format("logs.report('storage','restoring %s from slot %s') ",message,input.storage.max) .. - table.serialize(original,name) .. - finalize - else - code = initialize .. table.serialize(original,name) .. finalize - end - lua.bytecode[input.storage.max] = loadstring(code) - end -end - --- we also need to count at generation time (nicer for message) - -if lua.bytecode then -- from 0 upwards - local i = input.storage.min - while lua.bytecode[i] do - lua.bytecode[i]() - lua.bytecode[i] = nil - i = i + 1 - end - input.storage.done = i -end |