Alex Yatskov
e408fa9335
commit 106991bfd59bb95977045399f7b4e5f4e7addc56
Author: Alex Yatskov <alex@foosoft.net>
Date: Sat Jan 8 11:19:21 2022 -0800
Rename property functions
commit 07f6033d4e86df257806af16de002ce8fad3d67f
Author: Alex Yatskov <alex@foosoft.net>
Date: Sat Jan 8 11:16:46 2022 -0800
Update rewrite
commit ea2dc0b4d223d54832752f0efd3eb46d81d17b50
Author: Alex Yatskov <alex@foosoft.net>
Date: Fri Jan 7 22:47:17 2022 -0800
Add more property methods
commit e2f7f8dc7ebc5b668539e8233e323a7c256eced2
Author: Alex Yatskov <alex@foosoft.net>
Date: Fri Jan 7 22:39:23 2022 -0800
Add step indexing
commit a7ed2a0b1c95ed9fbb0bbd87c779cf51a92f0b5f
Author: Alex Yatskov <alex@foosoft.net>
Date: Fri Jan 7 20:50:19 2022 -0800
Use self
commit 7ecc01e508c06680dcb6b6ecd4265a7f72e2c933
Author: Alex Yatskov <alex@foosoft.net>
Date: Sun Aug 22 12:33:09 2021 -0700
Cleanup
commit 87dd28a4c14b88bea061ca913f68e272cca787f9
Author: Alex Yatskov <alex@foosoft.net>
Date: Sun Aug 22 12:09:41 2021 -0700
Cleanup
commit 129130128d2a50f119c46f70e7cb70ef421892ff
Merge: 629fce0 e751d70
Author: Alex Yatskov <alex@foosoft.net>
Date: Sat Aug 21 12:18:09 2021 -0700
Merge branch 'master' into dev
commit 629fce06a8fca6810ec772f558d9ffabda016d01
Author: Alex Yatskov <alex@foosoft.net>
Date: Sun Jun 27 19:34:53 2021 -0700
Abstract metadata
91 lines
1.8 KiB
Go
91 lines
1.8 KiB
Go
package goldsmith
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import (
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"encoding/binary"
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"fmt"
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"hash/crc32"
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"os"
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"path/filepath"
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"sort"
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)
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type cache struct {
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baseDir string
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}
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func (self *cache) retrieveFile(context *Context, outputPath string, inputFiles []*File) (*File, error) {
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cachePath, err := self.buildCachePath(context, outputPath, inputFiles)
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if err != nil {
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return nil, err
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}
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outputFile, err := context.CreateFileFromAsset(outputPath, cachePath)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, nil
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}
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return nil, err
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}
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return outputFile, nil
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}
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func (self *cache) storeFile(context *Context, outputFile *File, inputFiles []*File) error {
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cachePath, err := self.buildCachePath(context, outputFile.Path(), inputFiles)
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if err != nil {
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return err
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}
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if err := os.MkdirAll(self.baseDir, 0755); err != nil {
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return err
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}
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fp, err := os.Create(cachePath)
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if err != nil {
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return err
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}
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defer fp.Close()
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offset, err := outputFile.Seek(0, os.SEEK_CUR)
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if err != nil {
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return err
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}
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if _, err := outputFile.Seek(0, os.SEEK_SET); err != nil {
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return err
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}
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if _, err := outputFile.WriteTo(fp); err != nil {
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return err
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}
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if _, err := outputFile.Seek(offset, os.SEEK_SET); err != nil {
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return err
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}
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return nil
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}
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func (self *cache) buildCachePath(context *Context, outputPath string, inputFiles []*File) (string, error) {
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hasher := crc32.NewIEEE()
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hasher.Write([]byte(outputPath))
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sort.Sort(filesByPath(inputFiles))
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for _, inputFile := range inputFiles {
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modTimeBuff := make([]byte, 8)
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binary.LittleEndian.PutUint64(modTimeBuff, uint64(inputFile.ModTime().UnixNano()))
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hasher.Write([]byte(inputFile.Path()))
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hasher.Write(modTimeBuff)
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}
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cachePath := filepath.Join(self.baseDir, fmt.Sprintf(
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"gs_%.8x%s",
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hasher.Sum32(),
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filepath.Ext(outputPath),
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))
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return cachePath, nil
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}
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