ml
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
package world
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import (
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"path/filepath"
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"strings"
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)
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// FileLocation describes the path and name of a file.
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type FileLocation struct {
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DirPath string
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Name string
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}
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// FileLocationFrom returns an instance for given filename.
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func FileLocationFrom(filename string) FileLocation {
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return FileLocation{
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DirPath: filepath.Dir(filename),
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Name: filepath.Base(filename),
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}
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}
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// AbsolutePathFrom returns the complete path, based on given base, of the location.
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func (loc FileLocation) AbsolutePathFrom(base string) string {
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rel, err := filepath.Rel(base, loc.DirPath)
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if err != nil {
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if filepath.IsAbs(loc.DirPath) {
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return filepath.Join(loc.DirPath, loc.Name)
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}
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return filepath.Join(base, loc.DirPath, loc.Name)
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}
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return filepath.Join(base, rel, loc.Name)
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}
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// NestedRelativeTo returns a string that describes the relative nested location to given base - if possible.
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func (loc FileLocation) NestedRelativeTo(base string) string {
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absoluteDir := loc.DirPath
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if !filepath.IsAbs(absoluteDir) {
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absoluteDir = filepath.Clean(filepath.Join(base, loc.DirPath))
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}
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if !strings.HasPrefix(absoluteDir+string(filepath.Separator), base+string(filepath.Separator)) {
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return filepath.Join(absoluteDir, loc.Name)
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}
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rel, err := filepath.Rel(base, absoluteDir)
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if err != nil {
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return filepath.Join(base, loc.Name)
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}
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return filepath.Join(".", rel, loc.Name)
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}
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