78 lines
1.3 KiB
Go
78 lines
1.3 KiB
Go
package pngstructure
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import (
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"fmt"
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"os"
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"path"
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)
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var (
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assetsPath = "assets"
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)
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func getModuleRootPath() (string, error) {
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moduleRootPath := os.Getenv("PNG_MODULE_ROOT_PATH")
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if moduleRootPath != "" {
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return moduleRootPath, nil
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}
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currentWd, err := os.Getwd()
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if err != nil {
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return "", err
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}
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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) {
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return "", 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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return "", fmt.Errorf("could not find module-root: %v", visited)
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}
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}
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return currentPath, nil
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}
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func getTestAssetsPath() (string, error) {
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if assetsPath == "" {
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moduleRootPath, err := getModuleRootPath()
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if err != nil {
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return "", err
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}
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assetsPath = path.Join(moduleRootPath, "assets")
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}
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return assetsPath, nil
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}
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func getTestBasicImageFilepath() (string, error) {
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assetsPath, err := getTestAssetsPath()
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if err != nil {
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return "", err
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}
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return path.Join(assetsPath, "libpng.png"), nil
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}
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func getTestExifImageFilepath() (string, error) {
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assetsPath, err := getTestAssetsPath()
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if err != nil {
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return "", err
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}
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return path.Join(assetsPath, "exif.png"), nil
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}
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