[SOLVED] Replace version inside YAML file

Issue

I have this YAML file:

openapi: 3.0.0
info:
  title: Test
  description: >-
    This is the official REST API documentation for all available routes
    provided by the **Test** plugin.
  version: 2.0.0
servers:
  - url: https://entwicklungsumgebung
components:
  securitySchemes:
    basicAuth:
      type: http

Inside my CI pipeline, I'm trying to modify the version at line 7. At the middle of the file, there are multiple keys named test_version or prod_version which should not be replaced. For this, I've written this sed command:

sed -i '' 's/^version: .*/version: 3.0.0/' test.yml

Initially, I've not used ^ after s/ but this matched also everything before version. Now, nothing gets replaced. Any idea what I'm doing wrong?

Solution

You have to preserve the whitespace, so you either have to match the entire line and use a capture group:

sed -i '' 's/^\([[:blank:]]*version:\) .*/\1 3.0.0/' test.yml

Or you could match only version, with the risk of matching where it shouldn't:

sed -i '' 's/\(version:\) .*/\1 3.0.0/' test.yml

A more robust solution would be to use a tool what can parse YAML, such as yq:

yq -i '.info.version = "3.0.0"' test.yml

Answered By - Benjamin W.

Answer Checked By - Mary Flores (WPSolving Volunteer)