impl rebuild and update

2 files changed, 140 insertions, 0 deletions

diff --git a/xmake/scripts/base/clean.lua b/xmake/scripts/base/clean.lua
new file mode 100644
index 000000000..3426dc41e
--- /dev/null
+++ b/xmake/scripts/base/clean.lua
@@ -0,0 +1,138 @@
+--!The Automatic Cross-platform Build Tool
+-- 
+-- XMake is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU Lesser General Public License as published by
+-- the Free Software Foundation; either version 2.1 of the License, or
+-- (at your option) any later version.
+-- 
+-- XMake is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU Lesser General Public License for more details.
+-- 
+-- You should have received a copy of the GNU Lesser General Public License
+-- along with XMake; 
+-- If not, see <a href="http://www.gnu.org/licenses/"> http://www.gnu.org/licenses/</a>
+-- 
+-- Copyright (C) 2009 - 2015, ruki All rights reserved.
+--
+-- @author      ruki
+-- @file        clean.lua
+--
+
+-- define module: clean
+local clean = clean or {}
+
+-- load modules
+local os        = require("base/os")
+local rule      = require("base/rule")
+local utils     = require("base/utils")
+local config    = require("base/config")
+local project   = require("base/project")
+
+-- remove the given files or directories
+function clean._remove(filedirs)
+
+    -- check
+    assert(filedirs)
+
+    -- wrap it first
+    filedirs = utils.wrap(filedirs)
+    for _, filedir in ipairs(filedirs) do
+ 
+        -- exists? remove it
+        if os.exists(filedir) then
+            -- remove it
+            local ok, errors = os.rm(filedir)
+            if not ok then
+                -- error
+                utils.error(errors)
+                return false
+            end  
+        end
+    end
+
+    -- ok
+    return true
+end
+
+-- remove the given target_name
+function clean._remove_target(target_name, target, target_only, buildir)
+
+    -- check
+    assert(target_name and target)
+ 
+    -- remove the target file 
+    if not clean._remove(rule.targetfile(target_name, target, buildir)) then
+        return false
+    end
+ 
+    -- not only remove target file?
+    if not target_only then
+        -- remove the object files 
+        if not clean._remove(rule.objectfiles(target_name, target, rule.sourcefiles(target), buildir)) then
+            return false
+        end
+    end
+
+    -- ok
+    return true
+end
+
+-- remove the given target and all dependent targets
+function clean._remove_target_and_deps(target_name, target_only, buildir)
+
+    -- the targets
+    local targets = project.targets()
+    assert(targets)
+
+    -- the target
+    local target = targets[target_name]
+    assert(target)
+
+    -- remove the target
+    if not clean._remove_target(target_name, target, target_only, buildir) then
+        return false 
+    end
+     
+    -- exists the dependent targets?
+    if target.deps then
+        local deps = utils.wrap(target.deps)
+        for _, dep in ipairs(deps) do
+            if not clean._remove_target_and_deps(dep, target_only, buildir) then return false end
+        end
+    end
+
+    -- ok
+    return true
+end
+
+-- remove the target and object files for the given target
+function clean.remove(target_name, target_only)
+
+    -- the build directory
+    local buildir = config.get("buildir")
+    assert(buildir)
+
+    -- the target name
+    if target_name and target_name ~= "all" then
+        -- remove target
+        if not clean._remove_target_and_deps(target_name, target_only, buildir) then return false end
+    else
+
+        -- the targets
+        local targets = project.targets()
+        assert(targets)
+
+        -- remove targets
+        for target_name, target in pairs(targets) do
+            if not clean._remove_target(target_name, target, target_only, buildir) then return false end
+        end
+    end
+ 
+    -- ok
+    return true
+end
+
+-- return module: clean
+return clean
diff --git a/xmake/scripts/base/config.lua b/xmake/scripts/base/config.lua
index 6eb0b242c..877f7d026 100644
--- a/xmake/scripts/base/config.lua
+++ b/xmake/scripts/base/config.lua
@@ -300,11 +300,13 @@ function config.loadxconf()
         -- clear configs if the host has been changed
         local target = config._target()
         if target and target.host ~= xmake._HOST then
+            -- clear configs
             config._CONFIGS = {}
         end
 
         -- clear configs if the plat has been changed
         if target and target.plat and options.plat and target.plat ~= options.plat then
+            -- clear configs
             config._CONFIGS = {}
         end
     end