apache/beam

Globbing asterisk cannot be escaped in file reads.

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#21,140 opened on Jun 4, 2022

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Description

TextIO.read().from("*.txt") always expands, and escaping the asterisk does not help if there is a file that starts with a literal asterisk.

Imported from Jira BEAM-13231. Original Jira may contain additional context. Reported by: robertwb.

Contributor guide

Research direction
Investigate the glob pattern expansion logic in TextIO to find where the escaping mechanism fails for asterisks that are part of the file name.
Tech stack
java
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60