feat(ir): add typed helper for DownloadPipelineArtifact@2

[github-actions]

Summary

Adds download_pipeline_artifact_step to src/compile/ir/tasks.rs — a typed factory function for the ADO DownloadPipelineArtifact@2 task.

Motivation

DownloadPipelineArtifact@2 is already used in src/tools/cache_memory/extension.rs via a hand-crafted TaskStep::new("DownloadPipelineArtifact@2", ...). Adding a typed helper to the central tasks.rs module makes the required/optional input boundary explicit and gives future callers a clean, self-documenting API — consistent with the other helpers already in this module.

Changes

• src/compile/ir/tasks.rs: download_pipeline_artifact_step(target_path) factory function with full doc-comment listing all optional inputs and their defaults.
• Four unit tests in the same file:
  • required input only (default display name, single input count)
  • filtering by artifact name
  • full source = "specific" with project/pipeline/branch/version inputs
  • glob pattern filtering

API

// Minimal — download all artifacts from the current run:
let step = download_pipeline_artifact_step("$(Pipeline.Workspace)/drop");

// Named artifact from the current run:
let step = download_pipeline_artifact_step("$(Agent.TempDirectory)/out")
    .with_input("artifact", "drop");

// Previous run on the same branch:
let step = download_pipeline_artifact_step("$(Agent.TempDirectory)/prev")
    .with_input("source", "specific")
    .with_input("project", "$(System.TeamProject)")
    .with_input("pipeline", "$(System.DefinitionId)")
    .with_input("runVersion", "latestFromBranch")
    .with_input("branchName", "$(Build.SourceBranch)")
    .with_input("allowPartiallySucceededBuilds", "true");

ADO Task Reference

• Task: DownloadPipelineArtifact@2
• Docs: (https://learn.microsoft.com/en-us/azure/devops/pipelines/tasks/reference/download-pipeline-artifact-v2)
• Required inputs: targetPath
• Optional inputs: artifact, patterns, source, project, pipeline, runVersion, branchName, runId, tags, allowPartiallySucceededBuilds, allowFailedBuilds, preferTriggeringPipeline, itemPattern

Validation

• cargo build --all-targets
• cargo test
• cargo clippy --all-targets --all-features --workspace -- -D warnings

---

Created by the ado-task-ir-contributor workflow.

Warning

Firewall blocked 2 domains

The following domains were blocked by the firewall during workflow execution:

• spsprodeus21.vssps.visualstudio.com
• spsprodweu4.vssps.visualstudio.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "spsprodeus21.vssps.visualstudio.com"
    - "spsprodweu4.vssps.visualstudio.com"

See Network Configuration for more information.

Generated by ADO Task IR Contributor · 581.6 AIC · ⌖ 20.1 AIC · ⊞ 36.6K · ◷