Add pulumi.com devcontainer feature

[Copilot]

Adds a new community devcontainer feature to install the Pulumi CLI.

What's added

• src/pulumi.com/devcontainer-feature.json — feature manifest with a version option (default: latest)
• src/pulumi.com/install.sh — downloads and installs the pulumi binary from GitHub releases (pulumi/pulumi); supports amd64/arm64; extracts only the pulumi binary from the archive to /usr/local/bin
• src/pulumi.com/README.md — auto-generated docs
• test/pulumi.com/test.sh — smoke test verifying pulumi version exits successfully
• .github/workflows/test.yaml — pulumi.com added to both test-autogenerated and test-scenarios CI matrices

Usage

"features": {
    "ghcr.io/devcontainer-community/devcontainer-features/pulumi.com:1": {}
}

Pinning a specific version:

"features": {
    "ghcr.io/devcontainer-community/devcontainer-features/pulumi.com:1": {
        "version": "3.160.0"
    }
}

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add feature pulumi.com</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add feature pulumi.com #30

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[Copilot]

Pull request overview

Adds a new pulumi.com devcontainer Feature to install the Pulumi CLI in this devcontainer-features repo, along with generated documentation and a basic smoke test.

Changes:

• Introduces src/pulumi.com feature definition (devcontainer-feature.json) and installer (install.sh) for Pulumi.
• Adds generated feature README for usage/options.
• Adds a devcontainer feature test script that validates pulumi version runs.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
test/pulumi.com/test.sh	Adds a smoke test to confirm the Pulumi CLI executes.
src/pulumi.com/README.md	Adds the generated feature README (usage/options).
src/pulumi.com/install.sh	Adds the Pulumi download/install logic from GitHub releases.
src/pulumi.com/devcontainer-feature.json	Defines the feature metadata and version option.

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[sebst]

@copilot New features need to be added to .github/workflows/test.yaml

[Copilot]

@copilot New features need to be added to .github/workflows/test.yaml

Done in 06122fa — added pulumi.com to both the test-autogenerated and test-scenarios matrix lists in .github/workflows/test.yaml. Also took the opportunity to fix the tar extraction in install.sh to use the existing curl_download_untar helper and target only the pulumi binary from the archive (consistent with starship.rs/chezmoi.io).

[sebst]

tests are failing

[Copilot]

tests are failing

Fixed in 064db2d — the curl_download_untar helper function was being called but never defined in install.sh. Each feature's script is self-contained, so the definition needs to be included inline (as starship.rs and others do). Added the missing function definition.