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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-present, TBOOX Open Source Group.
--
-- @author ruki
-- @file proto.lua
--
-- imports
import("core.base.option")
import("lib.detect.find_tool")
import("private.utils.batchcmds")
import("module_parser")
-- get protoc
function _get_protoc(target, sourcekind)
-- find protoc
local protoc = target:data("protobuf.protoc")
if not protoc and sourcekind == "cxx" then
protoc = find_tool("protoc")
if protoc and protoc.program then
target:data_set("protobuf.protoc", protoc.program)
end
end
-- find protoc-c
local protoc_c = target:data("protobuf.protoc-c")
if not protoc_c and sourcekind == "cc" then
protoc_c = find_tool("protoc-c") or protoc
if protoc_c and protoc_c.program then
target:data_set("protobuf.protoc-c", protoc_c.program)
end
end
-- get protoc
return assert(target:data(sourcekind == "cxx" and "protobuf.protoc" or "protobuf.protoc-c"), "protoc not found!")
end
-- we need add some configs to export includedirs to other targets in on_load
-- @see https://github.com/xmake-io/xmake/issues/2256
function load(target, sourcekind)
-- get the first sourcefile
local sourcefile_proto
local sourcebatch = target:sourcebatches()[sourcekind == "cxx" and "protobuf.cpp" or "protobuf.c"]
if sourcebatch then
sourcefile_proto = sourcebatch.sourcefiles[1]
end
if not sourcefile_proto then
return
end
-- get c/c++ source file for protobuf
local prefixdir
local public
local fileconfig = target:fileconfig(sourcefile_proto)
if fileconfig then
public = fileconfig.proto_public
prefixdir = fileconfig.proto_rootdir
end
local rootdir = path.join(target:autogendir(), "rules", "protobuf")
local filename = path.basename(sourcefile_proto) .. ".pb" .. (sourcekind == "cxx" and ".cc" or "-c.c")
local sourcefile_cx = target:autogenfile(sourcefile_proto, {rootdir = rootdir, filename = filename})
local sourcefile_dir = prefixdir and path.join(rootdir, prefixdir) or path.directory(sourcefile_cx)
-- add includedirs
target:add("includedirs", sourcefile_dir, {public = public})
end
-- generate build commands
function buildcmd(target, batchcmds, sourcefile_proto, opt, sourcekind)
-- get protoc
local protoc = _get_protoc(target, sourcekind)
-- get c/c++ source file for protobuf
local prefixdir
local public
local fileconfig = target:fileconfig(sourcefile_proto)
if fileconfig then
public = fileconfig.proto_public
prefixdir = fileconfig.proto_rootdir
end
local rootdir = path.join(target:autogendir(), "rules", "protobuf")
local filename = path.basename(sourcefile_proto) .. ".pb" .. (sourcekind == "cxx" and ".cc" or "-c.c")
local sourcefile_cx = target:autogenfile(sourcefile_proto, {rootdir = rootdir, filename = filename})
local sourcefile_dir = prefixdir and path.join(rootdir, prefixdir) or path.directory(sourcefile_cx)
-- add includedirs
target:add("includedirs", sourcefile_dir, {public = public})
-- add objectfile
local objectfile = target:objectfile(sourcefile_cx)
table.insert(target:objectfiles(), objectfile)
-- add commands
batchcmds:mkdir(sourcefile_dir)
batchcmds:show_progress(opt.progress, "${color.build.object}compiling.proto %s", sourcefile_proto)
batchcmds:vrunv(protoc, {path(sourcefile_proto),
path(prefixdir and prefixdir or path.directory(sourcefile_proto), function (p) return "-I" .. p end),
path(sourcefile_dir, function (p) return (sourcekind == "cxx" and "--cpp_out=" or "--c_out=") .. p end)})
batchcmds:compile(sourcefile_cx, objectfile, {configs = {includedirs = sourcefile_dir, languages = (sourcekind == "cxx" and "c++11")}})
-- add deps
batchcmds:add_depfiles(sourcefile_proto)
batchcmds:set_depmtime(os.mtime(objectfile))
batchcmds:set_depcache(target:dependfile(objectfile))
end
-- build batch jobs
function build_batchjobs(target, batchjobs, sourcebatch, opt, sourcekind)
-- get the root directory of protobuf
local proto_rootdir
if #sourcebatch.sourcefiles > 0 then
local sourcefile = sourcebatch.sourcefiles[1]
local fileconfig = target:fileconfig(sourcefile)
if fileconfig then
proto_rootdir = fileconfig.proto_rootdir
end
end
-- load moduledeps
opt = opt or {}
local moduledeps, moduledeps_files = module_parser.load(target, sourcebatch, table.join(opt, {proto_rootdir = proto_rootdir}))
-- generate jobs
local sourcefiles_total = #sourcebatch.sourcefiles
for i = 1, sourcefiles_total do
local sourcefile = sourcebatch.sourcefiles[i]
local moduleinfo = moduledeps_files[sourcefile] or {}
-- make build job
moduleinfo.job = batchjobs:newjob(sourcefile, function (index, total)
local batchcmds_ = batchcmds.new({target = target})
buildcmd(target, batchcmds_, sourcefile, {progress = (index * 100) / total}, sourcekind)
batchcmds_:runcmds({dryrun = option.get("dry-run")})
end)
end
-- build batchjobs
module_parser.build_batchjobs(moduledeps, batchjobs, opt.rootjob)
end
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