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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, Xmake Open Source Community.
--
-- @author ruki
-- @file xmake.lua
--
rule("vala.build")
set_extensions(".vala")
-- Since vala can directly compile with C files
-- we can add C sourcekinds
-- And in the end we're going to be compiling C code
set_sourcekinds("cc")
on_load(function (target)
-- we disable to build across targets in parallel, because the source files may depend on other target modules
target:set("policy", "build.fence", true)
-- get vapi file
local vapifile = target:data("vala.vapifile")
if not vapifile then
local vapiname = target:values("vala.vapi")
if vapiname then
vapifile = path.absolute(path.join(target:targetdir(), vapiname))
else
vapifile = path.absolute(path.join(target:targetdir(), target:name() .. ".vapi"))
end
target:data_set("vala.vapifile", vapifile)
end
-- get header file
local headerfile = target:data("vala.headerfile")
if not headerfile then
local headername = target:values("vala.header")
if headername then
headerfile = path.absolute(path.join(target:targetdir(), headername))
else
headerfile = path.absolute(path.join(target:targetdir(), target:name() .. ".h"))
end
target:data_set("vala.headerfile", headerfile)
end
if headerfile then
target:add("headerfiles", headerfile)
target:add("sysincludedirs", path.directory(headerfile), {public = true})
end
end)
before_buildcmd_files(function (target, batchcmds, sourcebatch, opt)
-- Here we compile vala files into C code
-- We have to compile entire project each time
-- because otherwise valac can't resolve symbols
-- from other files, however, c files can be
-- incrementally built
-- get valac
import("lib.detect.find_tool")
local valac = assert(find_tool("valac"), "valac not found!")
local argv = {"-C", "-d", target:autogendir()}
-- add commands
local packages = target:values("vala.packages")
if packages then
for _, package in ipairs(packages) do
table.insert(argv, "--pkg")
table.insert(argv, path(package))
end
end
if target:is_binary() then
for _, dep in ipairs(target:orderdeps()) do
if dep:is_shared() or dep:is_static() then
local vapifile = dep:data("vala.vapifile")
if vapifile then
table.join2(argv, path(vapifile))
end
end
end
else
local vapifile = target:data("vala.vapifile")
if vapifile then
table.insert(argv, path(vapifile, function (p) return "--vapi=" .. p end))
end
local headerfile = target:data("vala.headerfile")
if headerfile then
table.insert(argv, "-H")
table.insert(argv, path(headerfile))
end
end
local vapidir = target:values("vala.vapidir")
if vapidir then
table.insert(argv, path(vapidir, function (p) return "--vapidir=" .. p end))
end
local valaflags = target:values("vala.flags")
if valaflags then
table.join2(argv, valaflags)
end
-- iterating through source files,
-- otherwise valac would fail when compiling multiple files
local lastmtime = 0
local sourcefiles = {}
for _, sourcefile in ipairs(sourcebatch.sourcefiles) do
-- if it's only a vala file
if path.extension(sourcefile) == ".vala" then
local sourcefile_c = target:autogenfile((sourcefile:gsub(".vala$", ".c")))
batchcmds:show_progress(opt.progress, "${color.build.object}compiling.vala %s", sourcefile)
table.insert(argv, path(sourcefile))
table.insert(sourcefiles, sourcefile)
local sourcefile_c_mtime = os.mtime(sourcefile_c)
if sourcefile_c_mtime > lastmtime then
lastmtime = sourcefile_c_mtime
end
end
end
if #sourcefiles > 0 then
batchcmds:vrunv(valac.program, argv)
batchcmds:add_depfiles(sourcefiles)
batchcmds:set_depmtime(lastmtime)
end
end)
on_buildcmd_file(function (target, batchcmds, sourcefile, opt)
-- Again, only vala files need special treatment
if path.extension(sourcefile) == ".vala" then
local sourcefile_c = target:autogenfile((sourcefile:gsub(".vala$", ".c")))
local basedir = path.directory(sourcefile_c)
batchcmds:mkdir(basedir)
local objectfile = target:objectfile(sourcefile_c)
table.insert(target:objectfiles(), objectfile)
batchcmds:show_progress(opt.progress, "${color.build.object}compiling.c %s", sourcefile_c)
batchcmds:compile(sourcefile_c, objectfile, { configs = { force = { cflags = "-w" } } })
batchcmds:add_depfiles(sourcefile)
batchcmds:set_depmtime(os.mtime(objectfile))
batchcmds:set_depcache(target:dependfile(objectfile))
end
end)
after_install(function (target)
if target:is_shared() or target:is_static() then
local vapifile = target:data("vala.vapifile")
if vapifile then
local installdir = target:installdir()
if installdir then
local sharedir = path.join(installdir, "share")
os.mkdir(sharedir)
os.vcp(vapifile, sharedir)
end
end
end
end)
after_uninstall(function (target)
if target:is_shared() or target:is_static() then
local vapifile = target:data("vala.vapifile")
if vapifile then
local installdir = target:installdir()
if installdir then
os.rm(path.join(installdir, "share", path.filename(vapifile)))
end
end
end
end)
rule("vala")
-- add build rules
add_deps("vala.build")
-- set compiler runtime, e.g. vs runtime
add_deps("utils.compiler.runtime")
-- inherit links and linkdirs of all dependent targets by default
add_deps("utils.inherit.links")
-- support `add_files("src/*.o")` and `add_files("src/*.a")` to merge object and archive files to target
add_deps("utils.merge.object", "utils.merge.archive")
-- we attempt to extract symbols to the independent file and
-- strip self-target binary if `set_symbols("debug")` and `set_strip("all")` are enabled
add_deps("utils.symbols.extract")
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