add go.build rules

3 files changed, 138 insertions, 0 deletions

diff --git a/xmake/languages/golang/xmake.lua b/xmake/languages/golang/xmake.lua
index 51612350f..ac16d97b1 100644
--- a/xmake/languages/golang/xmake.lua
+++ b/xmake/languages/golang/xmake.lua
@@ -39,6 +39,9 @@ language("golang")
     -- set mixing kinds
     set_mixingkinds("gc")
 
+    -- add rules
+    add_rules("go")
+
     -- on load
     on_load("load")
 
diff --git a/xmake/rules/go/build/object.lua b/xmake/rules/go/build/object.lua
new file mode 100644
index 000000000..5e4626d56
--- /dev/null
+++ b/xmake/rules/go/build/object.lua
@@ -0,0 +1,104 @@
+--!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 - 2019, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        object.lua
+--
+
+-- imports
+import("core.base.option")
+import("core.base.hashset")
+import("core.theme.theme")
+import("core.tool.compiler")
+import("core.project.depend")
+
+-- build the source files
+function main(target, sourcebatch, opt)
+
+    -- is verbose?
+    local verbose = option.get("verbose")
+
+    -- get progress range
+    local progress = assert(opt.progress, "no progress!")
+
+    -- get source files and kind
+    local sourcefiles = sourcebatch.sourcefiles
+    local sourcekind  = sourcebatch.sourcekind
+
+    -- get object file
+    local objectfile = target:objectfile(path.join(path.directory(sourcefiles[1]), "__go__"))
+
+    -- get depend file
+    local dependfile = target:dependfile(objectfile)
+
+    -- remove the object files in sourcebatch
+    local objectfiles_set = hashset.from(sourcebatch.objectfiles)
+    for idx, file in irpairs(target:objectfiles()) do
+        if objectfiles_set:has(file) then
+            table.remove(target:objectfiles(), idx)
+        end
+    end
+
+    -- add object file
+    table.insert(target:objectfiles(), objectfile)
+
+    -- load compiler 
+    local compinst = compiler.load(sourcekind, {target = target})
+
+    -- get compile flags
+    local compflags = compinst:compflags({target = target})
+
+    -- load dependent info 
+    local dependinfo = option.get("rebuild") and {} or (depend.load(dependfile) or {})
+    
+    -- need build this object?
+    local depvalues = {compinst:program(), compflags}
+    if not depend.is_changed(dependinfo, {lastmtime = os.mtime(objectfile), values = depvalues}) then
+        return 
+    end
+
+    -- trace progress info
+    for index, sourcefile in ipairs(sourcefiles) do
+
+        -- calculate progress
+        local progress_now = progress.start + ((index - 1) * (progress.stop - progress.start)) / #sourcefiles
+
+        -- trace progress info
+        cprintf("${color.build.progress}" .. theme.get("text.build.progress_format") .. ":${clear} ", progress_now)
+        if verbose then
+            cprint("${dim color.build.object}compiling.$(mode) %s", sourcefile)
+        else
+            cprint("${color.build.object}compiling.$(mode) %s", sourcefile)
+        end
+    end
+
+    -- trace verbose info
+    if verbose then
+        print(compinst:compcmd(sourcefiles, objectfile, {compflags = compflags}))
+    end
+
+    -- flush io buffer to update progress info
+    io.flush()
+
+    -- compile it 
+    dependinfo.files = {}
+    assert(compinst:compile(sourcefiles, objectfile, {dependinfo = dependinfo, compflags = compflags}))
+
+    -- update files and values to the dependent file
+    dependinfo.values = depvalues
+    table.join2(dependinfo.files, sourcefiles)
+    depend.save(dependinfo, dependfile)
+end
diff --git a/xmake/rules/go/xmake.lua b/xmake/rules/go/xmake.lua
new file mode 100644
index 000000000..c98ab7ed2
--- /dev/null
+++ b/xmake/rules/go/xmake.lua
@@ -0,0 +1,31 @@
+--!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 - 2019, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        xmake.lua
+--
+
+
+-- define rule: go.build
+rule("go.build")
+    set_extensions(".go")    
+    on_build_files(function (target, sourcebatch, opt)
+        import("build.object")(target, sourcebatch, opt)
+    end)
+
+-- define rule: cpp
+rule("go")
+    add_deps("go.build")