amoeba/qlarrow

WIP QuickLook plugin for Apache Arrow and Parquet

QLArrow

QuickLook plugin for various Arrow file formats. Arrow is a high-performance, language-agnostic columnar memory format.

Roadmap

Parquet is the main use case here but Arrow IPC may be useful for some.

Currently, QLArrow provides QuickLook previews for:

• Parquet
• Feather
• Arrow IPC

Installation

• Download the latest release and extract the ZIP
• Run xattr -d com.apple.quarantine QLArrow.qlgenerator on QLArrow.qlgenerator
• Move to ~/Library/QuickLook

Building

0. Pre-requisites

• XCode
• Go

1. Build the Go subproject

   go build -buildmode=c-archive -o internal.a ./internal

2. Build the XCode subproject

• Open QLArrow.xcodeproj
• Build the QLArrow target

Credit

• https://github.com/toland/qlmarkdown
• https://github.com/remko/qlmka

qlarrow's Issues

Fix bug in rendering blogs example parquet file

The file https://github.com/apache/arrow-testing/blob/master/data/parquet/generated_simple_numerics/blogs.parquet shows up with extra template garbage at the end. Other files exhibit related behavior to something is off.

Update Arrow dep

Update the direct arrow dep from 10 and also remove references to arrow 9 such as:

	github.com/apache/arrow/go/v9 v9.0.0 // indirect

Update to cover new IANA media type for parquet

https://www.iana.org/assignments/media-types/application/vnd.apache.parquet