support vcpkg for lib.detect.find_package

2 files changed, 177 insertions, 3 deletions

diff --git a/xmake/modules/lib/detect/pkg_config.lua b/xmake/modules/lib/detect/pkg_config.lua
index 11782b250..fc991393d 100644
--- a/xmake/modules/lib/detect/pkg_config.lua
+++ b/xmake/modules/lib/detect/pkg_config.lua
@@ -54,8 +54,8 @@ function info(name, opt)
 
     -- get it from cache first
     local result = _g._INFO[name]
-    if result then
-        return result
+    if result ~= nil then
+        return result and result or nil
     end
 
     -- get pkg-config path from brew
@@ -132,7 +132,7 @@ function info(name, opt)
     end
 
     -- save result to cache
-    _g._INFO[name] = result
+    _g._INFO[name] = result and result or false
 
     -- ok?
     return result
diff --git a/xmake/modules/lib/detect/vcpkg.lua b/xmake/modules/lib/detect/vcpkg.lua
new file mode 100644
index 000000000..156b9f7a9
--- /dev/null
+++ b/xmake/modules/lib/detect/vcpkg.lua
@@ -0,0 +1,174 @@
+--!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        vcpkg.lua
+--
+
+-- imports
+import("lib.detect.find_file")
+import("lib.detect.find_library")
+import("detect.sdks.find_vcpkgdir")
+import("core.project.config")
+
+-- get package info
+--
+-- @param name  the package name
+-- @param opt   the argument options, {version = true, arch = "", plat = "", mode = "", vcpkgdir = ""}
+--
+-- @return      {links = {"ssl", "crypto", "z"}, linkdirs = {""}, includedirs = {""}, version = ""}
+--
+-- @code 
+--
+-- local pkginfo = vcpkg.info("openssl")
+-- 
+-- @endcode
+--
+function info(name, opt)
+
+    -- init options
+    opt = opt or {}
+    
+    -- attempt to find the vcpkg root directory
+    local vcpkgdir = find_vcpkgdir(opt.vcpkgdir)
+    if not vcpkgdir then
+        return 
+    end
+
+    -- get arch, plat and mode
+    local arch = opt.arch or config.arch() or os.arch()
+    local plat = opt.plat or config.plat() or os.host()
+    local mode = opt.mode or config.mode() or "release"
+
+    -- init cache
+    _g._INFO = _g._INFO or {}
+
+    -- get it from cache first
+    local key = name .. "_" .. arch .. "_" .. plat .. "_" .. mode
+    local result = _g._INFO[key]
+    if result ~= nil then
+        return result and result or nil
+    end
+
+    -- get the vcpkg installed directory
+    local installdir = path.join(vcpkgdir, "installed")
+
+    -- get the vcpkg info directory
+    local infodir = path.join(installdir, "vcpkg", "info")
+
+    -- find the package info file, .e.g zlib_1.2.11-3_x86-windows.list
+    local infofile = find_file(vformat("%s_*_%s-%s.list", name, arch, plat), infodir)
+
+    -- save includedirs, linkdirs and links
+    local info = infofile and io.readfile(infofile) or nil
+    if info then
+        for _, line in ipairs(info:split('\n')) do
+            line = line:trim()
+
+            -- get includedirs
+            if line:endswith("/include/") then
+                result = result or {}
+                result.includedirs = result.includedirs or {}
+                table.insert(result.includedirs, path.join(installdir, line))
+            end
+
+            -- get linkdirs and links
+            if (plat == "windows" and line:endswith(".lib")) or line:endswith(".a") then
+                if line:find(plat .. (mode == "debug" and "/debug" or "") .. "/lib/", 1, true) then
+                    result = result or {}
+                    result.links = result.links or {}
+                    result.linkdirs = result.linkdirs or {}
+                    table.insert(result.linkdirs, path.join(installdir, path.directory(line)))
+                    table.insert(result.links, path.basename(line))
+                end
+            end
+        end
+    end
+
+    -- save version
+    if opt.version then
+        local infoname = path.basename(infofile)
+        result.version = infoname:match(name .. "_(%d+%.?%d*%.?%d*.-)_" .. arch)
+        if not result.version then
+            result.version = infoname:match(name .. "_(%d+%.?%d*%.-)_" .. arch)
+        end
+    end
+
+    -- save result to cache
+    _g._INFO[key] = result and result or false
+
+    -- ok?
+    return result
+end
+
+-- find package 
+--
+-- @param name  the package name
+-- @param opt   the argument options, {plat = "", arch = "", mode = "", version = "1.0.1", links = {...}, vcpkgdir = ""}
+--
+-- @return      {links = {"ssl", "crypto", "z"}, linkdirs = {""}, includedirs = {""}}
+--
+-- @code 
+--
+-- local pkginfo = vcpkg.find("openssl")
+-- 
+-- @endcode
+--
+function find(name, opt)
+
+    -- get package info
+    local pkginfo = info(name, opt)
+    if not pkginfo then
+        return 
+    end
+
+    -- match version?
+    opt = opt or {}
+    if opt.version and pkginfo.version ~= opt.version then
+        return 
+    end
+
+    -- get links
+    local links = pkginfo.links
+    if not links or #links == 0 then
+        links = opt.links
+    end
+
+    -- find library 
+    local result = nil
+    for _, link in ipairs(table.wrap(links)) do
+        local libinfo = find_library(link, pkginfo.linkdirs)
+        if libinfo then
+            result          = result or {}
+            result.links    = table.join(result.links or {}, libinfo.link)
+            result.linkdirs = table.join(result.linkdirs or {}, libinfo.linkdir)
+        end
+    end
+
+    -- found?
+    if result and result.links then
+        result.linkdirs     = table.unique(result.linkdirs)
+        result.includedirs  = table.join(result.includedirs or {}, pkginfo.includedirs)
+    end
+
+    -- ok?
+    return result
+end
+