121 lines
2.8 KiB
Go
121 lines
2.8 KiB
Go
/*
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* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package goldsmith
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import (
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"io/ioutil"
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"os"
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"path"
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"path/filepath"
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"github.com/bmatcuk/doublestar"
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)
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type stage struct {
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input, output chan File
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}
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type goldsmith struct {
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stages []stage
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files chan File
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}
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func NewGoldsmith(src string) Goldsmith {
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gs := new(goldsmith)
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gs.scan(src)
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return gs
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}
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func (gs *goldsmith) scan(srcDir string) error {
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matches, err := doublestar.Glob(filepath.Join(srcDir, "**"))
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if err != nil {
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return err
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}
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s := stage{
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input: nil,
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output: make(chan File, len(matches)),
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}
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for _, match := range matches {
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relPath, err := filepath.Rel(srcDir, match)
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if err != nil {
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return err
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}
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s.output <- &file{relPath: relPath, srcPath: match}
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}
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close(s.output)
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gs.stages = append(gs.stages, s)
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return nil
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}
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func (gs *goldsmith) makeStage() stage {
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s := stage{
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input: gs.stages[len(gs.stages)-1].output,
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output: make(chan File),
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}
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gs.stages = append(gs.stages, s)
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return s
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}
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func (gs *goldsmith) NewFile(relPath string) File {
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return &file{relPath: relPath}
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}
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func (gs *goldsmith) Apply(p Processor) Goldsmith {
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s := gs.makeStage()
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go p.Process(gs, s.input, s.output)
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return gs
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}
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func (gs *goldsmith) Complete(dstDir string) []File {
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s := gs.stages[len(gs.stages)-1]
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var files []File
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for file := range s.output {
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data := file.Data()
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if data == nil {
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continue
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}
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absPath := filepath.Join(dstDir, file.Path())
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if err := os.MkdirAll(path.Dir(absPath), 0755); err != nil {
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file.SetError(err)
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continue
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}
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if err := ioutil.WriteFile(absPath, data.Bytes(), 0644); err != nil {
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file.SetError(err)
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continue
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}
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files = append(files, file)
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}
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return files
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}
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