golang/go

os/exec: provide better support for creating pipelines

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#11,164 opened on Jun 11, 2015

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FeatureRequesthelp wanted

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Description

Creating pipelines using os/exec is somewhat tedious. There are a couple of good external packages that provide higher-level interfaces: http://godoc.org/gopkg.in/pipe.v2 http://godoc.org/github.com/ghemawat/stream

Brad asked me to file an issue to think about making this better for Go 1.6.

Related: it's common to want the text of stderr on failure, but not as CombinedOutput. The pipe package calls this DividedOutput: http://godoc.org/gopkg.in/pipe.v2#DividedOutput

Contributor guide

Research direction
Study existing pipeline packages (pipe.v2, ghemawat/stream) and propose an improved API for os/exec.
Tech stack
go
Domain
backendcli
Issue type
Feature
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.
Half day
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.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65