@atomist/yaml-updater

@atomist/yaml-updater

Node TypeScript module @atomist/yaml-updater for creating clean changes to YAML files producing reasonable diffs from the original. This module was developed for you with Rug

Using

Each function is documented using TypeDoc in the source. The tests are pretty complete and a great source of examples for what functions are available and how to use them.

In general, updating a property value adds property and value if it does not exist. If the property does exist in the original YAML, its value will be updated. If its current value is an object, the value will be recursively updated, resulting in nested properties being add/updated without affecting elements of the original YAML that do not appear in the updates.

Most functions take an optional last options parameter that is an object. Currently the only used parameter in the options object is "keepArrayIndent". If the value of that property is true, the resulting YAML will have arrays indented compared to their parent object. If the value is false, the indentation of the array will be at the same level as its parent object. For example, if keepArrayIndent: true, you will get

parent:
  - first array item
  - second array item

while if keepArrayIndent: false, you will get

parent:
- first array item
- second array item

Both are valid YAML and equivalent representation of the same data structure. Note that only arrays that are updated in some way will be modified, so we recommend you base the value for this option on the format of the original YAML document you are updating.

Support

General support questions should be discussed in the #support channel on our community Slack team at atomist-community.slack.com.

If you find a problem, please create an issue.

Development

You will need to install node to build and test this project.

Build and Test

Command	Reason
npm install	to install all the required packages
npm run lint	to run tslint against the TypeScript
npm run compile	to compile all TypeScript into JavaScript
npm test	to run tests and ensure everything is working
npm run autotest	run tests continuously (you also need to run tsc -w)

Release

To create a new release of the project, simply push a tag of the form M.N.P where M, N, and P are integers that form the next appropriate semantic version for release. The version in the package.json is replaced by the build and is totally ignored! For example:

$ git tag -a 1.2.
$ git push --tags

The Travis CI build (see badge at the top of this page) will publish the NPM module and automatically create a GitHub release using the tag name for the release and the comment provided on the annotated tag as the contents of the release notes.

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Created by Atomist. Need Help? Join our Slack team.

Changelog

0.1.0 - 2017-08-18

Added

• Clean updates to YAML