89 lines
1.6 KiB
Go
89 lines
1.6 KiB
Go
package exifcommon
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import (
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"os"
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"path"
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"encoding/binary"
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"io/ioutil"
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"github.com/dsoprea/go-logging"
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)
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var (
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moduleRootPath = ""
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testExifData []byte = nil
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// EncodeDefaultByteOrder is the default byte-order for encoding operations.
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EncodeDefaultByteOrder = binary.BigEndian
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// Default byte order for tests.
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TestDefaultByteOrder = binary.BigEndian
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)
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func GetModuleRootPath() string {
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if moduleRootPath == "" {
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moduleRootPath = os.Getenv("EXIF_MODULE_ROOT_PATH")
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if moduleRootPath != "" {
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return moduleRootPath
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}
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currentWd, err := os.Getwd()
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log.PanicIf(err)
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currentPath := currentWd
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visited := make([]string, 0)
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for {
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tryStampFilepath := path.Join(currentPath, ".MODULE_ROOT")
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_, err := os.Stat(tryStampFilepath)
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if err != nil && os.IsNotExist(err) != true {
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log.Panic(err)
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} else if err == nil {
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break
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}
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visited = append(visited, tryStampFilepath)
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currentPath = path.Dir(currentPath)
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if currentPath == "/" {
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log.Panicf("could not find module-root: %v", visited)
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}
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}
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moduleRootPath = currentPath
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}
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return moduleRootPath
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}
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func GetTestAssetsPath() string {
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moduleRootPath := GetModuleRootPath()
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assetsPath := path.Join(moduleRootPath, "assets")
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return assetsPath
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}
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func getTestImageFilepath() string {
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assetsPath := GetTestAssetsPath()
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testImageFilepath := path.Join(assetsPath, "NDM_8901.jpg")
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return testImageFilepath
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}
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func getTestExifData() []byte {
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if testExifData == nil {
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assetsPath := GetTestAssetsPath()
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filepath := path.Join(assetsPath, "NDM_8901.jpg.exif")
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var err error
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testExifData, err = ioutil.ReadFile(filepath)
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log.PanicIf(err)
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}
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return testExifData
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}
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