Adds context param in golangci-lint

This adds context param to provide path to the directory to use
as context.

Signed-off-by: Shivam Mukhade <smukhade@redhat.com>

task/golangci-lint/0.1/README.md

@@ -12,6 +12,7 @@ kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/master/task/
 ### Parameters
 
 * **package**: base package under validation
+* **context**: path to the directory to use as context (default: .)
 * **flags**: flags to use for `golangci-lint` command (_default:_--verbose)
 * **version**: golangci-lint version to use (_default:_ v1.16)
 * **GOOS**: operating system target (_default:_ linux)

task/golangci-lint/0.1/golangci-lint.yaml

@@ -15,6 +15,9 @@ spec:
   params:
   - name: package
     description: base package (and its children) under validation
+  - name: context
+    description: path to the directory to use as context.
+    default: "."
   - name: flags
     description: flags to use for the test command
     default: --verbose
@@ -36,7 +39,7 @@ spec:
   steps:
   - name: lint
     image: docker.io/golangci/golangci-lint:$(params.version)
-    workingDir: $(workspaces.source.path)
+    workingDir: $(workspaces.source.path)/$(params.context)
     script: |
       golangci-lint run $(params.flags)
     env: