feat: add file-based API for local archives#5
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Add convenience types and functions for working with local file-based blob archives: - BlobFile: wraps *Blob with file handle management - OpenFile: opens existing archive from index and data file paths - CreateBlob: creates archive in a directory and returns open BlobFile - Blob.Stream: returns io.Reader for streaming the data blob - Blob.Save: writes archive to specified index and data paths Default file names are "index.blob" and "data.blob" with options to override via CreateBlobWithIndexName and CreateBlobWithDataName. Also updates documentation with examples for the new API. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
BlobFiletype that wraps*Blobwith file handle managementOpenFile()function to open existing archives from local filesCreateBlob()function to create archives in a directoryBlob.Stream()method returningio.Readerfor data blobBlob.Save()method to write archives to specified pathsCreateBlobOptionfor customizingCreateBlobbehaviorDefault file names are
index.blobanddata.blobwith options to override.Test plan
file_test.gocovering:TestFileSource- verifies ReadAt and Size on wrapped os.FileTestOpenFile- opens existing archive filesTestBlobStream- streams data blob contentsTestBlobSave- saves archive to specified pathsTestCreateBlob- creates archive and returns BlobFileTestCreateBlobCustomNames- custom names via optionsTestCreateBlobWithCompression- compression passthroughTestBlobFileClose- proper file handle cleanupjust ci)🤖 Generated with Claude Code