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30 lines
1 KiB
Go
30 lines
1 KiB
Go
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package filesystems
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import (
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"io/fs"
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"os"
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"path/filepath"
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)
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// OsFS is a simple fs.FS implementation that uses the local
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// file system. (We do not use os.DirFS because we do our own
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// rooting or path prefixing without being constrained to a single
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// root folder. The standard os.DirFS implementation is problematic
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// since roots can be dynamic in our application.)
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//
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// OsFS also implements fs.StatFS, fs.GlobFS, fs.ReadDirFS, and fs.ReadFileFS.
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type OsFS struct{}
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func (OsFS) Open(name string) (fs.File, error) { return os.Open(name) }
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func (OsFS) Stat(name string) (fs.FileInfo, error) { return os.Stat(name) }
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func (OsFS) Glob(pattern string) ([]string, error) { return filepath.Glob(pattern) }
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func (OsFS) ReadDir(name string) ([]fs.DirEntry, error) { return os.ReadDir(name) }
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func (OsFS) ReadFile(name string) ([]byte, error) { return os.ReadFile(name) }
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var (
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_ fs.StatFS = (*OsFS)(nil)
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_ fs.GlobFS = (*OsFS)(nil)
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_ fs.ReadDirFS = (*OsFS)(nil)
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_ fs.ReadFileFS = (*OsFS)(nil)
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)
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