Merge remote-tracking branch 'upstream/master'

1 files changed, 182 insertions, 0 deletions

diff --git a/xmake/modules/lib/detect/pkgconfig.lua b/xmake/modules/lib/detect/pkgconfig.lua
new file mode 100644
index 000000000..9cd07a1e7
--- /dev/null
+++ b/xmake/modules/lib/detect/pkgconfig.lua
@@ -0,0 +1,182 @@
+--!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        pkgconfig.lua
+--
+
+-- imports
+import("core.base.global")
+import("core.project.target")
+import("core.project.config")
+import("lib.detect.find_file")
+import("lib.detect.find_library")
+import("detect.tools.find_pkg_config")
+
+-- get version
+--
+-- @param name      the package name
+-- @param opt       the argument options, {configdirs = {"/xxxx/pkgconfig/"}}
+--
+function version(name, opt)
+
+    -- attempt to add search paths from pkg-config
+    local pkgconfig = find_pkg_config()
+    if not pkgconfig then
+        return
+    end
+
+    -- init options
+    opt = opt or {}
+
+    -- init PKG_CONFIG_PATH
+    local configdirs_old = os.getenv("PKG_CONFIG_PATH")
+    local configdirs = table.wrap(opt.configdirs)
+    if #configdirs > 0 then
+        os.setenv("PKG_CONFIG_PATH", unpack(configdirs))
+    end
+
+    -- get version
+    local version = try { function() return os.iorunv(pkgconfig, {"--modversion", name}) end }
+    if version then
+        version = version:trim()
+    end
+
+    -- restore PKG_CONFIG_PATH
+    if configdirs_old then
+        os.setenv("PKG_CONFIG_PATH", configdirs_old)
+    end
+
+    -- ok?
+    return version
+end
+
+-- get variables
+--
+-- @param name      the package name
+-- @param variables the variables
+-- @param opt       the argument options, {configdirs = {"/xxxx/pkgconfig/"}}
+--
+function variables(name, variables, opt)
+
+    -- attempt to add search paths from pkg-config
+    local pkgconfig = find_pkg_config()
+    if not pkgconfig then
+        return
+    end
+
+    -- init options
+    opt = opt or {}
+
+    -- init PKG_CONFIG_PATH
+    local configdirs_old = os.getenv("PKG_CONFIG_PATH")
+    local configdirs = table.wrap(opt.configdirs)
+    if #configdirs > 0 then
+        os.setenv("PKG_CONFIG_PATH", unpack(configdirs))
+    end
+
+    -- get variable value
+    local result = nil
+    if variables then
+        for _, variable in ipairs(table.wrap(variables)) do
+            local value = try { function () return os.iorunv(pkgconfig, {"--variable=" .. variable, name}) end }
+            if value ~= nil then
+                result = result or {}
+                result[variable] = value:trim()
+            end
+        end
+    end
+
+    -- restore PKG_CONFIG_PATH
+    if configdirs_old then
+        os.setenv("PKG_CONFIG_PATH", configdirs_old)
+    end
+
+    -- ok?
+    return result
+end
+
+-- get library info
+--
+-- @param name  the package name
+-- @param opt   the argument options, {version = true, variables = "includedir", configdirs = {"/xxxx/pkgconfig/"}}
+--
+-- @return      {links = {"ssl", "crypto", "z"}, linkdirs = {""}, includedirs = {""}, version = ""}
+--
+-- @code
+--
+-- local libinfo = pkgconfig.libinfo("openssl")
+--
+-- @endcode
+--
+function libinfo(name, opt)
+
+    -- attempt to add search paths from pkg-config
+    local pkgconfig = find_pkg_config()
+    if not pkgconfig then
+        return
+    end
+
+    -- init options
+    opt = opt or {}
+
+    -- init PKG_CONFIG_PATH
+    local envs = {}
+    local configdirs = table.wrap(opt.configdirs)
+    if #configdirs > 0 then
+        envs.PKG_CONFIG_PATH = path.joinenv(configdirs)
+    end
+
+    -- get libs and cflags
+    local result = nil
+    local flags = try { function () return os.iorunv(pkgconfig, {"--libs", "--cflags", name}, {envs = envs}) end }
+    if flags then
+
+        -- init result
+        result = {}
+        for _, flag in ipairs(os.argv(flags)) do
+            if flag:startswith("-L") and #flag > 2 then
+                -- get linkdirs
+                local linkdir = flag:sub(3)
+                if linkdir and os.isdir(linkdir) then
+                    result.linkdirs = result.linkdirs or {}
+                    table.insert(result.linkdirs, linkdir)
+                end
+            elseif flag:startswith("-I") and #flag > 2 then
+                -- get includedirs
+                local includedir = flag:sub(3)
+                if includedir and os.isdir(includedir) then
+                    result.includedirs = result.includedirs or {}
+                    table.insert(result.includedirs, includedir)
+                end
+            elseif flag:startswith("-l") and #flag > 2 then
+                -- get links
+                local link = flag:sub(3)
+                result.links = result.links or {}
+                table.insert(result.links, link)
+            end
+        end
+    end
+
+    -- get version
+    local version = try { function() return os.iorunv(pkgconfig, {"--modversion", name}, {envs = envs}) end }
+    if version then
+        result = result or {}
+        result.version = version:trim()
+    end
+    return result
+end
+