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Proposal: Template optionalPaths property #484

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Aug 9, 2024
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Proposal: Template optionalPaths property #484

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Proposal: Template `optionalPaths` property
joshspicer Aug 1, 2024
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update spec
joshspicer Aug 9, 2024
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clarify
joshspicer Aug 9, 2024
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23 changes: 22 additions & 1 deletion docs/specs/devcontainer-templates.md
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Expand Up @@ -33,10 +33,11 @@ The properties of the file are as follows:
| `description` | string | Description of the Template. |
| `documentationURL` | string | Url that points to the documentation of the Template. |
| `licenseURL` | string | Url that points to the license of the Template. |
| `options` | object | A map of options that the supporting tools should use to populate different configuration options for the Template. |
| [`options`](#the-options-property) | object | A map of options that the supporting tools should use to populate different configuration options for the Template. |
| `platforms` | array | Languages and platforms supported by the Template. |
| `publisher` | string | Name of the publisher/maintainer of the Template. |
| `keywords` | array | List of strings relevant to a user that would search for this Template. |
| [`optionalPath`](#the-optionalpaths-property) | array | An array of files or directories that tooling may consider "optional" when applying a Template.

### The `options` property

Expand Down Expand Up @@ -66,6 +67,26 @@ The `options` property contains a map of option IDs and their related configurat

> `Note`: The `options` must be unique for every `devcontainer-template.json`

### The `optionalPaths` property

Before applying a Template, tooling must inspect the `optionalPaths` property of a Template and prompt the user on whether each file or folder should be included in the resulting output workspace folder.

An optional path is relative to the root of the Template source directory. For a directory, a trailing slash (`/`) should be appended to the path. Examples are shown below:

```json
{
"id": "cpp",
"version": "3.0.0",
"name": "C++",
"description": "Develop C++ applications",
"optionalPaths": [
"GETTING-STARTED.md",
"example-project-1/MyProject.csproj",
".github/"
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]
}
```

### Referencing a Template

The `id` format (`<oci-registry>/<namespace>/<template>[:<semantic-version>]`) dictates how a [supporting tool](https://containers.dev/supporting) will locate and download a given Template from an OCI registry. For example:
Expand Down