goldsmith/file.go

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/*
* 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 (
"bytes"
"os"
)
type file struct {
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relPath, srcPath string
meta map[string]interface{}
buff *bytes.Buffer
err error
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}
func (f *file) Path() string {
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return f.relPath
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}
func (f *file) SetPath(path string) {
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f.relPath = path
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}
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func (f *file) Property(key, def string) interface{} {
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value, ok := f.meta[key]
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if ok {
return value
}
return def
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}
func (f *file) SetProperty(key string, value interface{}) {
f.meta[key] = value
}
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func (f *file) Error() error {
return f.err
}
func (f *file) SetError(err error) {
f.err = err
}
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func (f *file) Data() *bytes.Buffer {
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if f.buff != nil {
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return f.buff
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}
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var buff bytes.Buffer
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if len(f.srcPath) > 0 {
file, err := os.Open(f.srcPath)
if err != nil {
f.SetError(err)
return nil
}
defer file.Close()
if _, err := buff.ReadFrom(file); err != nil {
f.SetError(err)
return nil
}
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}
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f.buff = &buff
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return f.buff
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}