add find_platform

1 files changed, 146 insertions, 0 deletions

diff --git a/xmake/modules/private/detect/find_platform.lua b/xmake/modules/private/detect/find_platform.lua
new file mode 100644
index 000000000..a18849b82
--- /dev/null
+++ b/xmake/modules/private/detect/find_platform.lua
@@ -0,0 +1,146 @@
+--!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        find_platform.lua
+--
+
+-- imports
+import("core.project.config")
+import("detect.sdks.find_cross_toolchain")
+
+-- find platform
+function _find_plat(plat)
+    plat = plat or config.get("plat")
+    if not plat then
+        plat = os.subhost()
+        if plat == "msys" then
+            local msystem = os.getenv("MSYSTEM")
+            if msystem and msystem:lower():find("mingw", 1, true) then
+                plat = "mingw"
+            end
+        end
+    end
+    return plat
+end
+
+-- find architecture for cross platform
+function _find_arch_from_cross()
+    local cross  = config.get("cross")
+    if not cross then
+        local cross_toolchain = find_cross_toolchain(config.get("sdk"), {bindir = config.get("bin")})
+        if cross_toolchain then
+            cross = cross_toolchain.cross
+        end
+    end
+    local arch = "none"
+    if cross then
+        if cross:find("aarch64", 1, true) then
+            arch = "arm64"
+        elseif cross:find("arm", 1, true) then
+            arch = "arm"
+        elseif cross:find("mips64", 1, true) then
+            arch = "mips64"
+        elseif cross:find("mips", 1, true) then
+            arch = "mips"
+        elseif cross:find("riscv64", 1, true) then
+            arch = "riscv64"
+        elseif cross:find("riscv", 1, true) then
+            arch = "riscv"
+        elseif cross:find("s390x", 1, true) then
+            arch = "s390x"
+        elseif cross:find("powerpc64", 1, true) then
+            arch = "ppc64"
+        elseif cross:find("powerpc", 1, true) then
+            arch = "ppc"
+        elseif cross:find("sh4", 1, true) then
+            arch = "sh4"
+        elseif cross:find("x86_64", 1, true) then
+            arch = "x86_64"
+        elseif cross:find("i386", 1, true) or cross:find("i686", 1, true) then
+            arch = "i386"
+        end
+    end
+    return arch
+end
+
+-- find architecture
+function _find_arch(plat, arch)
+    arch = arch or config.get("arch")
+    if not arch then
+        if plat == "android" then
+            arch = "armeabi-v7a"
+        elseif plat == "iphoneos" then
+            arch = "arm64"
+        elseif plat == "watchos" then
+            arch = "armv7k"
+        elseif plat == "wasm" then
+            arch = "wasm32"
+        elseif plat == "mingw" then
+            local mingw_chost = nil
+            if is_subhost("msys") then
+                mingw_chost = os.getenv("MINGW_CHOST")
+            end
+            if mingw_chost == "i686-w64-mingw32" then
+                arch = "i386"
+            else
+                arch = "x86_64"
+            end
+        elseif plat == "cross" then
+            arch = _find_arch_from_cross()
+        else
+            arch = os.subarch()
+        end
+    end
+    return arch
+end
+
+-- find default platform and architecture
+--
+-- @param       opt        the argument options, e.g. {plat = "", arch = "", global = true}
+--
+-- @return      {plat = "", arch = ""}
+--
+-- @code
+--
+-- find the default platform:
+--   local result = find_platform()
+--
+-- find the default architecture from the given platform:
+--   local result = find_platform({plat = "iphoneos"})
+--
+-- @endcode
+--
+function main(opt)
+
+    -- find plat and arch
+    opt = opt or {}
+    local plat = _find_plat(opt.plat)
+    local arch = _find_arch(plat, opt.arch)
+
+    -- save the local configuration if be global
+    if opt.global then
+        if not opt.plat and not config.get("plat") then
+            config.set("plat", plat)
+            cprint("checking for platform ... ${color.success}%s", plat)
+        end
+        if not opt.arch and not config.get("arch") then
+            config.set("arch", arch)
+            cprint("checking for architecture ... ${color.success}%s", plat)
+        end
+    end
+    return {plat = plat, arch = arch}
+end