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