diff options
Diffstat (limited to 'luaotfload.dtx')
-rw-r--r-- | luaotfload.dtx | 106 |
1 files changed, 42 insertions, 64 deletions
diff --git a/luaotfload.dtx b/luaotfload.dtx index 1c21460..af43615 100644 --- a/luaotfload.dtx +++ b/luaotfload.dtx @@ -1451,18 +1451,23 @@ luaotfload.module = { license = "GPL v2.0" } -local luatexbase = luatexbase +local luatexbase = luatexbase -local type, next = type, next +local getmetatable = getmetatable +local rawset = rawset local setmetatable = setmetatable -local kpsefind_file = kpse.find_file +local type, next = type, next + + local kpseexpand_path = kpse.expand_path local kpseexpand_var = kpse.expand_var -local lfsisfile = lfs.isfile +local kpsefind_file = kpse.find_file local lfsisdir = lfs.isdir +local lfsisfile = lfs.isfile local lfsmkdir = lfs.mkdir local stringexplode = string.explode local stringgmatch = string.gmatch +local stringsub = string.sub local add_to_callback, create_callback = luatexbase.add_to_callback, luatexbase.create_callback @@ -1511,77 +1516,50 @@ if tex.luatexversion < luatex_version then end % \end{macrocode} -% Create \verb|$TEXMFCACHE| if not present. This is necessary due to -% two bugs in Luatex-Fonts that surface simultaneously if none -% of the possible cache directories exists. We add a fixed version -% of \verb|lfs.mkdirs()| first. +% Create $TEXMFCACHE if not present. This is necessary due to a bug +% in Luatex-Fonts that surfaces if none of the possible cache +% directories exists. We add a fixed version of lfs.mkdirs() first +% that will be installed as soon as l-file.lua tries to insert its +% buggy version. % % \begin{macrocode} -local ostype = os.type - +local ostype = os.type local mkdirs = function (path) - local full - for sub in stringgmatch(path, "([^\\/]+)") do - if full then - full = full .. "/" .. sub - else - if ostype == "windows" then - full = sub - else - full = "/" .. sub - end - end - if not lfsisdir(full) then - lfsmkdir(full) - end + local full + if ostype ~= "windows" and stringsub(path, 1, 1) == "/" then + --- absolute path, force initial backslash + full = "" + end + for sub in stringgmatch(path,"([^\\/]+)") do + if full then + full = full .. "/" .. sub + else + full = sub + end + if not lfsisdir(full) then + lfsmkdir(full) end + end end ---- <hack> +--- <hack version="2"> -local phantom_kpse, normal_expand_path -do --- take care of writable path - local cachepath = kpseexpand_path"$TEXMFCACHE" - if cachepath == "" then - cachepath = kpseexpand_path"$TEXMFVAR" - end - if cachepath == "" then --- dir missing, create - texio.write_nl("term and log", - "(luaotfload: cache directory inaccessible)") - local cachedest = kpseexpand_var"$TEXMFCACHE" - local pathsep = ostype == "windows" and ";" or ":" - if cachedest then - cachedest = stringexplode(cachedest, pathsep) - end - for _, path in next, cachedest do - if not lfsisdir(path) then - texio.write_nl("term and log", - "(luaotfload: creating path " .. path) - mkdirs(path) - if lfsisdir(path) then - local writable = kpseexpand_path("$TEXMFCACHE", true) - texio.write("term and log", " -- success)") - phantom_kpse = kpse.new "luatex" - goto writable_cache - end - texio.write("term and log", " FAILED!)") - end - end - end -end +local backup_mkdirs -- just in case -::writable_cache:: -if phantom_kpse ~= nil then - normal_expand_path = kpseexpand_path - kpse.expand_path = function (spec) - --- the second kpse instance is needed because kpathsea - --- doesn’t update variables - --- http://www.ntg.nl/pipermail/dev-luatex/2007-December/001172.html - return phantom_kpse:expand_path(spec) - end +local lfs_mt = getmetatable(lfs) or { } --- should be empty + +lfs_mt.__newindex = function (t, k, v) + if k == "mkdirs" then + backup_mkdirs = v --> backup + rawset(t, "mkdirs", mkdirs) --> ours + else -- insert normally + t[k] = v + end end +setmetatable(lfs, lfs_mt) + --- </hack> % \end{macrocode} |