Question 1

How do I use dyff with kubectl diff?

Accepted Answer

Set the KUBECTL_EXTERNAL_DIFF environment variable to 'dyff between --omit-header --set-exit-code' for kubectl v1.20.0+. For older versions, you need a helper shell script to wrap the command, as dyff's arguments aren't supported directly.

Question 2

dyff vs standard diff: which is better for YAML files?

Accepted Answer

dyff is superior for YAML/JSON because it shows only changed parts with location references and preserves key order, while standard diff outputs line-by-line changes that can be cluttered. dyff's compact output is specifically designed for structured data.

Question 3

Can dyff compare remote YAML files from a URL?

Accepted Answer

Yes, dyff supports remote files via URI. You can directly compare files from sources like GitHub raw URLs, as shown in the example comparing two versions of cf-deployment YAMLs.

Question 4

How to install dyff on Windows?

Accepted Answer

The README doesn't specify native Windows installation, but pre-built binaries are available on GitHub Releases. You may need to manually download and add to PATH, or use Windows Subsystem for Linux (WSL) for easier setup with package managers.

Question 5

Does dyff support XML or other configuration formats?

Accepted Answer

No, dyff is specifically for YAML and JSON files only. The README states it's 'a diff tool for YAML files, and sometimes JSON,' so for XML or similar formats, you'll need alternative tools.

Question 6

How to integrate dyff into Git for better YAML diffs?

Accepted Answer

Configure Git with 'git config --local diff.dyff.command' to use dyff for YAML files, and add '*.yml diff=dyff' to .gitattributes. Then, use Git commands like 'git log --ext-diff -u' to see dyff-formatted diffs in commits.

dyff

What is dyff?

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