XML Lint Action

This action validates an XML files with a given XML schema using xmllint.

Inputs

xml-file

Required The name of the source (.xml) file.

xml-schema-file

Required The name of the schema (.xsd) file.

xml-schema-type

Optional The type of schema to use (schema, relaxng, schematron). Default is schema.

Basic Usage Example

This basic example validates specified XML file specified using: xml-file using the schema file specified using: xml-schema-file.

name: Lint

on: [push]

jobs:
  xml-linters:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Download schema
      run: wget https://apps.nextcloud.com/schema/apps/info.xsd
    - name: Validate info.xml using XML schema info.xsd
      uses: ChristophWurst/xmllint-action@v1
      with:
        xml-file: ./appinfo/info.xml
        xml-schema-file: ./info.xsd

Using alternate schema formats

To use an alternate schema format supported by xmllint (i.e. relaxng or schematron), you should specify the format of your schema using the optional xml-schema-type parameter.

Extended Usage Example Enabling Annotations

This example does the same as the above example, in addition it configures the use of korelstar/xmllint-problem-matcher@v1, which matches any problems found by xmllint and present these as annotations with both errors and warnings emitted from xmllint, which are a nice alternative to digging through the log files.

name: Lint

on: [push]

jobs:
  xml-linters:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Download schema
      run: wget https://apps.nextcloud.com/schema/apps/info.xsd
    - name: Enable annotations for validation errors and warnings
      uses: korelstar/xmllint-problem-matcher@v1
    - name: Validate info.xml using XML schema info.xsd
      uses: ChristophWurst/xmllint-action@v1
      with:
        xml-file: ./appinfo/info.xml
        xml-schema-file: ./info.xsd

Referenes

• xmllint comes from libxml
• GitHub: korelstar/xmllint-problem-matcher