Coverage for mcp/resources/infra.py: 93%

1"""Infrastructure config resources (infra:// scheme) for the GCO MCP server.""" 

2 

3from pathlib import Path 

4 

5from server import mcp 

6 

7PROJECT_ROOT = Path(__file__).parent.parent.parent 

8DOCKERFILES_DIR = PROJECT_ROOT / "dockerfiles" 

9HELM_CHARTS_FILE = PROJECT_ROOT / "lambda" / "helm-installer" / "charts.yaml" 

10 

11 

12@mcp.resource("infra://gco/index") 

13def infra_index() -> str: 

14 """List infrastructure configuration files — Dockerfiles, Helm charts, CI/CD.""" 

15 lines = ["# Infrastructure Configuration\n"] 

16 lines.append("## Dockerfiles") 

17 readme = DOCKERFILES_DIR / "README.md" 

18 if readme.is_file(): 18 ↛ 20line 18 didn't jump to line 20 because the condition on line 18 was always true

19 lines.append("- `infra://gco/dockerfiles/README.md` — Dockerfiles overview") 

20 for f in sorted(DOCKERFILES_DIR.iterdir()): 

21 if f.is_file() and not f.name.startswith(".") and f.name != "README.md": 

22 lines.append(f"- `infra://gco/dockerfiles/{f.name}`") 

23 lines.append("\n## Helm Charts") 

24 if HELM_CHARTS_FILE.is_file(): 24 ↛ 26line 24 didn't jump to line 26 because the condition on line 24 was always true

25 lines.append("- `infra://gco/helm/charts.yaml` — Helm chart versions and config") 

26 lines.append("\n## CI/CD") 

27 lines.append("- `ci://gco/index` — GitHub Actions workflows, composite actions, scripts") 

28 lines.append("- `source://gco/config/.gitlab-ci.yml` — GitLab CI pipeline (frozen reference)") 

29 lines.append("- `source://gco/config/.pre-commit-config.yaml` — Pre-commit hooks") 

30 lines.append("\n## Security & Linting") 

31 for name in ( 

32 ".checkov.yaml", 

33 ".kics.yaml", 

34 ".gitleaks.toml", 

35 ".semgrepignore", 

36 ".yamllint.yml", 

37 ): 

38 lines.append(f"- `source://gco/config/{name}` — {name}") 

39 lines.append("\n## CDK Configuration") 

40 lines.append("- `source://gco/config/cdk.json` — CDK deployment configuration") 

41 lines.append("- `source://gco/config/app.py` — CDK app entry point") 

42 lines.append( 

43 "- `source://gco/config/pyproject.toml` — Python project metadata and dependencies" 

44 ) 

45 lines.append("\n## Related Resources") 

46 lines.append("- `scripts://gco/index` — Utility scripts for operations") 

47 lines.append("- `demos://gco/index` — Demo walkthroughs and scripts") 

48 return "\n".join(lines) 

49 

50 

51@mcp.resource("infra://gco/dockerfiles/{filename}") 

52def dockerfile_resource(filename: str) -> str: 

53 """Read a Dockerfile, requirements file, or README for a GCO service.""" 

54 path = DOCKERFILES_DIR / filename 

55 if not path.is_file(): 

56 available = sorted(f.name for f in DOCKERFILES_DIR.iterdir() if f.is_file()) 

57 return f"File '{filename}' not found. Available:\n" + "\n".join(available) 

58 return path.read_text() 

59 

60 

61@mcp.resource("infra://gco/helm/charts.yaml") 

62def helm_charts_resource() -> str: 

63 """Read the Helm charts configuration (chart names, versions, values).""" 

64 if not HELM_CHARTS_FILE.is_file(): 64 ↛ 65line 64 didn't jump to line 65 because the condition on line 64 was never true

65 return "charts.yaml not found." 

66 return HELM_CHARTS_FILE.read_text()