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--!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) 2015-2020, TBOOX Open Source Group.
--
-- @author ruki
-- @file compile_commands.lua
--
-- imports
import("core.tool.compiler")
import("core.project.project")
import("core.language.language")
-- make the object
function _make_object(jsonfile, target, sourcefile, objectfile)
-- get the source file kind
local sourcekind = language.sourcekind_of(sourcefile)
-- make the object for the *.o/obj? ignore it directly
if sourcekind == "obj" or sourcekind == "lib" then
return
end
-- get compile arguments
local arguments = table.join(compiler.compargv(sourcefile, objectfile, {target = target, sourcekind = sourcekind}))
-- escape '"', '\'
local arguments_escape = {}
for _, arg in ipairs(arguments) do
table.insert(arguments_escape, (arg:gsub("[\"\\]", "\\%1")))
end
-- make body
jsonfile:printf(
[[%s{
"directory": "%s",
"arguments": ["%s"],
"file": "%s"
}]], ifelse(_g.firstline, "", ",\n"), os.args(os.projectdir()), table.concat(arguments_escape, "\", \""), os.args(sourcefile))
-- clear first line marks
_g.firstline = false
end
-- make objects
function _make_objects(jsonfile, target, sourcekind, sourcebatch)
for index, objectfile in ipairs(sourcebatch.objectfiles) do
_make_object(jsonfile, target, sourcebatch.sourcefiles[index], objectfile)
end
end
-- make target
function _make_target(jsonfile, target)
-- TODO
-- disable precompiled header first
target:set("pcheader", nil)
target:set("pcxxheader", nil)
-- build source batches
for _, sourcebatch in pairs(target:sourcebatches()) do
local sourcekind = sourcebatch.sourcekind
if sourcekind then
_make_objects(jsonfile, target, sourcekind, sourcebatch)
end
end
end
-- make all
function _make_all(jsonfile)
-- make header
jsonfile:print("[")
-- make commands
_g.firstline = true
for _, target in pairs(project.targets()) do
local isdefault = target:get("default")
if not target:isphony() and (isdefault == nil or isdefault == true) then
_make_target(jsonfile, target)
end
end
-- make tailer
jsonfile:print("]")
end
-- generate compilation databases for clang-based tools(compile_commands.json)
--
-- references:
-- - https://clang.llvm.org/docs/JSONCompilationDatabase.html
-- - https://sarcasm.github.io/notes/dev/compilation-database.html
-- - http://eli.thegreenplace.net/2014/05/21/compilation-databases-for-clang-based-tools
--
function make(outputdir)
-- enter project directory
local oldir = os.cd(os.projectdir())
-- open the jsonfile
local jsonfile = io.open(path.join(outputdir, "compile_commands.json"), "w")
-- make all
_make_all(jsonfile)
-- close the jsonfile
jsonfile:close()
-- leave project directory
os.cd(oldir)
end
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