Add Source to Workspace

[ctrombley]

Description

This PR adds Source field to Workspace struct, originally by @jpadrianoGo (#1124).

Testing plan

1. Generate the required environment variables for go test, TFE_ADDRESS and TFE_TOKEN
2. Run TFE_ADDRESS="https://example" TFE_TOKEN="example" go test ./... -v -run TestWorkspacesReadSource. The new tests should pass.
3. Source is read for Workspaces.

{
  "data": {
    "id": "ws-***",
    "type": "workspaces",
    "attributes": {
      "allow-destroy-plan": true,
      "auto-apply": false,
      "auto-apply-run-trigger": false,
      "auto-destroy-activity-duration": null,
      "auto-destroy-at": null,
      "auto-destroy-status": null,
      "inherits-project-auto-destroy": true,
      "created-at": "2025-06-03T08:42:47.572Z",
      "environment": "default",
      "locked": false,
      "name": "wsTest",
      "queue-all-runs": false,
      "speculative-enabled": true,
      "structured-run-output-enabled": true,
      "terraform-version": "1.12.1",
      "working-directory": null,
      "global-remote-state": false,
      "updated-at": "2025-06-03T08:42:47.572Z",
      "resource-count": 0,
      "apply-duration-average": null,
      "plan-duration-average": null,
      "policy-check-failures": null,
      "run-failures": null,
      "workspace-kpis-runs-count": null,
      "unarchived-workspace-change-requests-count": 0,
      "latest-change-at": "2025-06-03T08:42:47.572Z",
      "operations": true,
      "execution-mode": "remote",
      "vcs-repo": null,
      "vcs-repo-identifier": null,
      "permissions": {
        "can-update": true,
        "can-destroy": true,
        "can-queue-run": true,
        "can-read-run": true,
        "can-read-variable": true,
        "can-update-variable": true,
        "can-read-state-versions": true,
        "can-read-state-outputs": true,
        "can-create-state-versions": true,
        "can-queue-apply": true,
        "can-lock": true,
        "can-unlock": true,
        "can-force-unlock": true,
        "can-read-settings": true,
        "can-manage-tags": true,
        "can-manage-run-tasks": true,
        "can-force-delete": true,
        "can-manage-assessments": true,
        "can-manage-ephemeral-workspaces": false,
        "can-read-assessment-results": true,
        "can-read-change-requests": false,
        "can-update-change-requests": false,
        "can-queue-destroy": true
      },
      "actions": {
        "is-destroyable": true
      },
      "description": null,
      "file-triggers-enabled": true,
      "trigger-prefixes": [],
      "trigger-patterns": [],
      "assessments-enabled": false,
      "last-assessment-result-at": null,
      "locked-reason": "",
      "source": "tfe-api",
      "source-name": null,
      "tag-names": [],
      "setting-overwrites": {
        "execution-mode": false,
        "agent-pool": false
      }
    },
    "relationships": {
      "organization": {
        "data": {
          "id": "orgTest",
          "type": "organizations"
        }
      },
      "current-run": {
        "data": null
      },
      "latest-run": {
        "data": null
      },
      "outputs": {
        "data": []
      },
      "remote-state-consumers": {
        "links": {
          "related": "/api/v2/workspaces/ws-***/relationships/remote-state-consumers"
        }
      },
      "current-state-version": {
        "data": null
      },
      "current-configuration-version": {
        "data": null
      },
      "agent-pool": {
        "data": null
      },
      "readme": {
        "data": null
      },
      "project": {
        "data": {
          "id": "prj-***",
          "type": "projects"
        }
      },
      "current-assessment-result": {
        "data": null
      },
      "vars": {
        "data": []
      }
    },
    "links": {
      "self": "/api/v2/organizations/orgTest/workspaces/wsTest",
      "self-html": "/app/orgTest/workspaces/wsTest"
    }
  }
}

External links

Output from tests

Including output from tests may require access to a TFE instance. Ignore this section if you have no environment to test against.

$ TFE_ADDRESS="https://example" TFE_TOKEN="example"go test ./... -v -run TestWorkspacesReadSource

=== RUN   TestWorkspacesReadSource
--- PASS: TestWorkspacesReadSource (3.86s)
PASS
ok      github.com/hashicorp/go-tfe     3.910s

[Maed223]

Looking good! Didn't know about the no code module source, but it checks out 💯

[github-actions]

Reminder to the contributor that merged this PR: if your changes have added important functionality or fixed a relevant bug, open a follow-up PR to update CHANGELOG.md with a note on your changes.