110 lines
2.7 KiB
Go
110 lines
2.7 KiB
Go
/*
|
|
* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
|
|
* Author: Alex Yatskov <alex@foosoft.net>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
|
* the Software, and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
|
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
package goldsmith
|
|
|
|
import (
|
|
"os"
|
|
"runtime"
|
|
"sync"
|
|
)
|
|
|
|
type context struct {
|
|
gs *goldsmith
|
|
plug Plugin
|
|
filters []Filter
|
|
input, output chan *file
|
|
}
|
|
|
|
func (ctx *context) chain() {
|
|
defer close(ctx.output)
|
|
|
|
var err error
|
|
var filters []Filter
|
|
if initializer, ok := ctx.plug.(Initializer); ok {
|
|
filters, err = initializer.Initialize(ctx)
|
|
if err != nil {
|
|
ctx.gs.fault(ctx.plug.Name(), nil, err)
|
|
return
|
|
}
|
|
}
|
|
|
|
if ctx.input != nil {
|
|
processor, _ := ctx.plug.(Processor)
|
|
|
|
var wg sync.WaitGroup
|
|
for i := 0; i < runtime.NumCPU(); i++ {
|
|
wg.Add(1)
|
|
go func() {
|
|
defer wg.Done()
|
|
for f := range ctx.input {
|
|
accept := processor != nil
|
|
for _, filter := range append(ctx.filters, filters...) {
|
|
if accept, err = filter.Accept(ctx, f); err != nil {
|
|
ctx.gs.fault(filter.Name(), f, err)
|
|
return
|
|
}
|
|
|
|
if !accept {
|
|
break
|
|
}
|
|
}
|
|
|
|
if accept {
|
|
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
|
|
ctx.gs.fault("core", f, err)
|
|
}
|
|
if err := processor.Process(ctx, f); err != nil {
|
|
ctx.gs.fault(ctx.plug.Name(), f, err)
|
|
}
|
|
} else {
|
|
ctx.output <- f
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
}
|
|
|
|
if finalizer, ok := ctx.plug.(Finalizer); ok {
|
|
if err := finalizer.Finalize(ctx); err != nil {
|
|
ctx.gs.fault(ctx.plug.Name(), nil, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Context Implementation
|
|
//
|
|
|
|
func (ctx *context) DispatchFile(f File) {
|
|
ctx.output <- f.(*file)
|
|
}
|
|
|
|
func (ctx *context) SrcDir() string {
|
|
return ctx.gs.srcDir
|
|
}
|
|
|
|
func (ctx *context) DstDir() string {
|
|
return ctx.gs.dstDir
|
|
}
|