bcsave for directory

1 files changed, 86 insertions, 0 deletions

diff --git a/xmake/modules/private/utils/bcsave.lua b/xmake/modules/private/utils/bcsave.lua
new file mode 100644
index 000000000..591626127
--- /dev/null
+++ b/xmake/modules/private/utils/bcsave.lua
@@ -0,0 +1,86 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Copyright (C) 2015 - 2019, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        bcsave.lua
+--
+
+-- imports
+import("core.base.option")
+import("lib.luajit.bcsave")
+
+-- the options
+local options =
+{
+    {'s', "strip",      "k",  false,            "Strip the debug info."                      }
+,   {'o', "outputdir",  "kv", nil,              "Set the output directory of bitcode files." }
+,   {nil, "sourcedir",  "v",  os.programdir(),  "Set the directory of lua source files."     }
+}
+
+-- save lua files to bitcode files in the given directory
+function save(sourcedir, outputdir, opt)
+
+    -- check
+    assert(outputdir, "no output directory!")
+
+    -- init source directory and options
+    opt = opt or {}
+    sourcedir = sourcedir or os.programdir()
+    assert(os.isdir(sourcedir), "%s not found!", sourcedir)
+
+    -- trace
+    print("generating bitcode files from %s ..", sourcedir)
+
+    -- save all lua files to bitcode files
+    local oldir = os.cd(sourcedir)
+    for _, luafile in ipairs(os.files(path.join(sourcedir, "**.lua"))) do
+
+        -- get relative lua file path to decrease bitcode file size (without strip)
+        luafile = path.relative(luafile, sourcedir)
+
+        -- trace
+        vprint("generating %s ..", luafile)
+
+        -- get bitcode file path
+        local bcfile = path.join(outputdir, luafile)
+        
+        -- generate bitcode file
+        bcsave(luafile, bcfile, {strip = opt.strip})
+    end
+    os.cd(oldir)
+
+    -- trace
+    cprint("${bright}bitcode files have been generated in %s", outputdir)
+end
+
+-- main entry
+function main(...)
+
+    -- parse arguments
+    local argv = {...}
+    local opt  = option.parse(argv, options, "Save all lua files to bitcode files."
+                                           , ""
+                                           , "Usage: xmake l private.utils.bcsave [options]")
+
+    -- check outputdir
+    if not opt.outputdir then
+        opt.help() 
+        raise("please set output directory!")
+    end
+
+    -- save bitcode files
+    save(opt.sourcedir, opt.outputdir, opt)
+end