65 lines
2.0 KiB
Markdown
65 lines
2.0 KiB
Markdown
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[](https://godoc.org/github.com/dsoprea/go-utility/filesystem)
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[](https://travis-ci.org/dsoprea/go-utility)
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[](https://coveralls.io/github/dsoprea/go-utility?branch=master)
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[](https://goreportcard.com/report/github.com/dsoprea/go-utility)
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# bounceback
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An `io.ReadSeeker` and `io.WriteSeeker` that returns to the right place before
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reading or writing. Useful when the same file resource is being reused for reads
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or writes throughout that file.
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# list_files
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A recursive path walker that supports filters.
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# seekable_buffer
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A memory structure that satisfies `io.ReadWriteSeeker`.
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# copy_bytes_between_positions
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Given an `io.ReadWriteSeeker`, copy N bytes from one position to an earlier
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position.
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# read_counter, write_counter
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Wrap `io.Reader` and `io.Writer` structs in order to report how many bytes were
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transferred.
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# readseekwritecloser
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Provides the ReadWriteSeekCloser interface that combines a RWS and a Closer.
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Also provides a no-op wrapper to augment a plain RWS with a closer.
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# boundedreadwriteseek
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Wraps a ReadWriteSeeker such that no seeks can be at an offset less than a
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specific-offset.
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# calculateseek
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Provides a reusable function with which to calculate seek offsets.
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# progress_wrapper
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Provides `io.Reader` and `io.Writer` wrappers that also trigger callbacks after
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each call. The reader wrapper also invokes the callback upon EOF.
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# does_exist
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Check whether a file/directory exists using a file-path.
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# graceful_copy
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Do a copy but correctly handle short-writes and reads that might return a non-
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zero read count *and* EOF.
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# readseeker_to_readerat
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A wrapper that allows an `io.ReadSeeker` to be used as a `io.ReaderAt`.
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# simplefileinfo
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An implementation of `os.FileInfo` to support testing.
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