add find python and python3

1 files changed, 69 insertions, 0 deletions

diff --git a/xmake/modules/detect/tools/find_python3.lua b/xmake/modules/detect/tools/find_python3.lua
new file mode 100644
index 000000000..a6c75611e
--- /dev/null
+++ b/xmake/modules/detect/tools/find_python3.lua
@@ -0,0 +1,69 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you 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 - 2018, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        find_python3.lua
+--
+
+-- imports
+import("lib.detect.find_program")
+import("lib.detect.find_programver")
+
+-- find python 
+--
+-- @param opt  the arguments, .e.g {version = true}
+--
+-- @return     program, version
+--
+-- @code 
+--
+-- local python = find_python3()
+-- local python, version = find_python3({version = true})
+-- 
+-- @endcode
+--
+function main(opt)
+
+    -- init options
+    opt = opt or {}
+    if is_host("windows") then
+        opt.pathes = opt.pathes or {}
+        table.insert(opt.pathes, "$(reg HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.7\\InstallPath;ExecutablePath)")
+        table.insert(opt.pathes, "$(reg HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.7-32\\InstallPath;ExecutablePath)")
+        table.insert(opt.pathes, "$(reg HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.6\\InstallPath;ExecutablePath)")
+        table.insert(opt.pathes, "$(reg HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.6-32\\InstallPath;ExecutablePath)")
+    end
+    
+    -- find program
+    local program = find_program(opt.program or "python3", opt)
+
+    -- find program version
+    local version = nil
+    if program and opt and opt.version then
+        opt.command = function () 
+            local outs, errs = os.iorunv(program, {"--version"}) 
+            return ((outs or "") .. (errs or "")):trim()
+        end
+        version = find_programver(program, opt)
+    end
+
+    -- ok?
+    return program, version
+end