dyoder
f0ce5a4042
- Created a new `platform` package to handle OS-specific hosts file paths. - Added implementations for macOS, Linux, and Windows to retrieve the hosts file path. - Introduced tests for the `GetHostsFilePath` function to ensure correct behavior across platforms. feat: Add DNS resolver for IP lookups - Implemented a `resolver` package for performing DNS lookups. - Created a `DNSResolver` struct with a `LookupIP` method to handle A-record lookups and CNAME resolution. - Added comprehensive tests for various DNS scenarios, including CNAME chains and error handling. chore: Refactor project structure and update dependencies - Restructured the project to follow Go's standard package layout. - Updated `go.mod` to Go 1.20 and added `golang.org/x/net` dependency. - Removed old source files and ensured a clean build with all tests passing.
32 lines
1.2 KiB
Go
32 lines
1.2 KiB
Go
package hostfile
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import "os"
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// FileSystem abstracts filesystem operations for testability.
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type FileSystem interface {
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ReadFile(path string) ([]byte, error)
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WriteFile(path string, data []byte, perm os.FileMode) error
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Stat(path string) (os.FileInfo, error)
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CreateTemp(dir, pattern string) (*os.File, error)
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Rename(oldpath, newpath string) error
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Remove(path string) error
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Chmod(path string, mode os.FileMode) error
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}
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// OSFileSystem implements FileSystem using real OS calls.
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type OSFileSystem struct{}
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func (OSFileSystem) ReadFile(path string) ([]byte, error) { return os.ReadFile(path) }
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func (OSFileSystem) WriteFile(path string, data []byte, perm os.FileMode) error {
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return os.WriteFile(path, data, perm)
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}
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func (OSFileSystem) Stat(path string) (os.FileInfo, error) { return os.Stat(path) }
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func (OSFileSystem) CreateTemp(dir, pattern string) (*os.File, error) {
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return os.CreateTemp(dir, pattern)
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}
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func (OSFileSystem) Rename(oldpath, newpath string) error { return os.Rename(oldpath, newpath) }
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func (OSFileSystem) Remove(path string) error { return os.Remove(path) }
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func (OSFileSystem) Chmod(path string, mode os.FileMode) error {
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return os.Chmod(path, mode)
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}
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