[gatsby-source-contentful] Image transforms still have default width

[LuudJanssen]

Description

This pull request removed the default image width for image transforms to enable you to only set a height and have the image infer the correct width automatically, just like it does with the height when setting a width.

This default still exists and can be removed in gatsby-source-contentful because this pull request for gatsby-plugin-sharp infers the defaults automatically if neither width nor height are given.

Steps to reproduce

Source an image from contentful and only set the height for the image transform with a query like:

query getImageFixedHeight {
  allContentfulImages {
    nodes {
      image {
        fixed(height: 160) {
          width
          height
        }
      }
    }
  }
}

Expected result

height should be 160 and width should be scaled according to the aspect ratio of the image.

Actual result

width is always 400.

Environment

System:
OS: Windows 10
CPU: (8) x64 Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz
Binaries:
Yarn: 1.13.0 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 6.9.0 - C:\Program Files\nodejs\npm.CMD
Languages:
Python: 2.7.15 - /c/Python27/python
Browsers:
Edge: 42.17134.1.0
npmPackages:
gatsby: ^2.4.3 => 2.4.3
gatsby-cli: ^2.5.8 => 2.5.13
gatsby-image: ^2.0.41 => 2.0.41
gatsby-plugin-material-ui: ^2.0.0-alpha.4 => 2.0.0-beta.0
gatsby-plugin-react-helmet: ^3.0.12 => 3.0.12
gatsby-plugin-sharp: ^2.0.37 => 2.0.37
gatsby-plugin-styled-components: ^3.0.7 => 3.0.7
gatsby-source-contentful: ^2.0.40 => 2.0.56
gatsby-transformer-sharp: ^2.1.19 => 2.1.19

[LuudJanssen]

I'm working on a pull request.

[gatsbot]

Hiya!

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[sidharthachatterjee]

Published in gatsby-source-contentful@2.0.69