Add pylint and pytest task

task/pylint/0.1/README.md

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+# pylint
+
+The task provides linting based on [pylint](https://pypi.org/project/pylint/) for Python. The used images are based on the official Docker Hub [Python images](https://hub.docker.com/_/python). The installation of the packages is performed via a `pip install`.
+
+**It is required that `pylint` is part of the requirements file for the task. If the module is not included a warning will be printed.**
+
+## Install the Task
+
+### Workspaces
+
+* **source**: A [Workspace](https://github.com/tektoncd/pipeline/blob/master/docs/workspaces.md) volume containing the python code.
+
+### Install pylint
+
+```bash
+kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/master/task/pylint/0.1/pylint.yaml
+```
+
+## Parameters
+
+* **PYTHON**: The used Python version, more precisely the tag for the Python image (_default_: `3.6`)
+* **SOURCE_PATH**: The path to the source code (_default_: `.`)
+* **MODULE_PATH**: The path to the module which should be analysed by pylint (_default_: `.`)
+* **ARGS**: The additional arguments to be used with pylint
+* **REQUIREMENTS_FILE**: The name of the requirements file inside the source location (_default_: `requirements.txt`)
+
+## Usage
+
+This `TaskRun` runs `pylint` on a repository.
+
+```yaml
+apiVersion: tekton.dev/v1beta1
+kind: TaskRun
+metadata:
+  name: lint
+spec:
+  taskRef:
+    name: pylint
+  workspaces:
+  - name: source
+    persistentVolumeClaim:
+      claimName: my-source
+  params:
+  - name: PYTHON
+    value: "3.7"
+  - name: MODULE
+    value: "examples/custom.py"
+  - name: ARGS
+    value: "-r y"
+```

task/pylint/0.1/pylint.yaml

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+---
+apiVersion: tekton.dev/v1beta1
+kind: Task
+metadata:
+  name: pylint
+  labels:
+    app.kubernetes.io/version: "0.1"
+  annotations:
+    tekton.dev/pipelines.minVersion: "0.12.1"
+    tekton.dev/tags: python, pylint
+    tekton.dev/displayName: pylint
+
+spec:
+  description: >-
+    This task will run pylint on the provided input.
+
+  workspaces:
+    - name: source
+  params:
+    - name: PYTHON
+      description: The used Python version, more precisely the tag for the Python image
+      type: string
+      default: "3.6"
+    - name: SOURCE_PATH
+      description: The path to the source code
+      default: "."
+    - name: MODULE_PATH
+      description: The path to the module which should be analysed by pylint
+      default: "."
+    - name: ARGS
+      description: The additional arguments to be used with pylint
+      type: string
+      default: ""
+    - name: REQUIREMENTS_FILE
+      description: The name of the requirements file inside the source location
+      default: "requirements.txt"
+  steps:
+    - name: lint
+      image: docker.io/python:$(inputs.params.PYTHON)
+      workingDir: /workspace/source
+      script: |
+          pip install -r $(inputs.params.SOURCE_PATH)/$(inputs.params.REQUIREMENTS_FILE)
+          pip show pylint || echo "###\nWarning: Pylint is missing in your requirements\n###" && pip install pylint
+          pylint $(inputs.params.ARGS) $(inputs.params.MODULE_PATH)

task/pylint/0.1/tests/pre-apply-task-hook.sh

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+#!/bin/bash
+
+# Add git-clone
+kubectl -n ${tns} apply -f ./task/git-clone/0.1/git-clone.yaml

task/pylint/0.1/tests/resources.yaml

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+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: python-source-pvc
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 200Mi

task/pylint/0.1/tests/run.yaml

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+---
+apiVersion: tekton.dev/v1beta1
+kind: Pipeline
+metadata:
+  name: python-test-pipeline
+spec:
+  workspaces:
+    - name: shared-workspace
+  tasks:
+    - name: fetch-repository
+      taskRef:
+        name: git-clone
+      workspaces:
+        - name: output
+          workspace: shared-workspace
+      params:
+        - name: url
+          value: https://github.com/wumaxd/pylint-pytest-example.git
+        - name: subdirectory
+          value: ""
+        - name: deleteExisting
+          value: "true"
+
+    - name: pylint
+      taskRef:
+        name: pylint
+      runAfter:
+        - fetch-repository
+      workspaces:
+        - name: source
+          workspace: shared-workspace
+      params:
+        - name: PYTHON
+          value: "3.7"
+        - name: ARGS
+          value: "-r y"
+        - name: MODULE_PATH
+          value: "src/"
+        - name: REQUIREMENTS_FILE
+          value: "requirements.txt"
+---
+apiVersion: tekton.dev/v1beta1
+kind: PipelineRun
+metadata:
+  name: python-test-pipeline-run
+spec:
+  pipelineRef:
+    name: python-test-pipeline
+  workspaces:
+    - name: shared-workspace
+      persistentvolumeclaim:
+        claimName: python-source-pvc

task/pytest/0.1/README.md

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+# pytest
+
+The task provides test execution based on [pytest](https://pypi.org/project/pytest/) for Python. The used images are based on the official Docker Hub [Python images](https://hub.docker.com/_/python). The installation of the packages is performed via a `pip install`.
+
+**It is required that `pytest` is part of the requirements file for the task. If the module is not included a warning will be printed.**
+
+## Install the Task
+
+### Workspaces
+
+* **source**: A [Workspace](https://github.com/tektoncd/pipeline/blob/master/docs/workspaces.md) volume containing the python code.
+
+### Install pytest
+
+```bash
+kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/master/task/pytest/0.1/pytest.yaml
+```
+
+## Parameters
+
+* **PYTHON**: The used Python version, more precisely the tag for the Python image (_default_: `3.6`)
+* **ARGS**: The additional arguments to be used with pytest
+* **SOURCE_PATH**: The path to the source code (_default_: `.`)
+* **REQUIREMENTS_FILE**: The name of the requirements file inside the source location (_default_: `requirements.txt`)
+
+## Usage
+
+This `TaskRun` runs `pytest` on a repository.
+
+```yaml
+apiVersion: tekton.dev/v1beta1
+kind: TaskRun
+metadata:
+  name: pytest
+spec:
+  taskRef:
+    name: pytest
+  workspaces:
+  - name: source
+    persistentVolumeClaim:
+      claimName: my-source
+  params:
+  - name: PYTHON
+    value: "3.7"
+  - name: ARGS
+    value: "-rfs"
+```

task/pytest/0.1/pytest.yaml

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+---
+apiVersion: tekton.dev/v1beta1
+kind: Task
+metadata:
+  name: pytest
+  labels:
+    app.kubernetes.io/version: "0.1"
+  annotations:
+    tekton.dev/pipelines.minVersion: "0.12.1"
+    tekton.dev/tags: python, pytest
+    tekton.dev/displayName: pytest
+
+spec:
+  description: >-
+    This task will run pytest on the provided input.
+
+  workspaces:
+    - name: source
+  params:
+    - name: PYTHON
+      description: The used Python version, more precisely the tag for the Python image
+      type: string
+      default: "3.6"
+    - name: ARGS
+      description: The additional arguments to be used with pytest
+      type: string
+      default: ""
+    - name: SOURCE_PATH
+      description: The path to the source code
+      default: "."
+    - name: REQUIREMENTS_FILE
+      description: The name of the requirements file inside the source location
+      default: "requirements.txt"
+  steps:
+    - name: unit-test
+      image: docker.io/python:$(inputs.params.PYTHON)
+      workingDir: /workspace/source
+      script: |
+          pip install -r $(inputs.params.SOURCE_PATH)/$(inputs.params.REQUIREMENTS_FILE)
+          pip show pytest || echo "###\nWarning: Pytest is missing in your requirements\n###" && pip install pytest
+          pytest $(inputs.params.ARGS) $(inputs.params.SOURCE-PATH)

task/pytest/0.1/tests/pre-apply-task-hook.sh

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+#!/bin/bash
+
+# Add git-clone
+kubectl -n ${tns} apply -f ./task/git-clone/0.1/git-clone.yaml

task/pytest/0.1/tests/resources.yaml

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+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: python-source-pvc
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 200Mi

task/pytest/0.1/tests/run.yaml

@@ -0,0 +1,48 @@
+---
+apiVersion: tekton.dev/v1beta1
+kind: Pipeline
+metadata:
+  name: python-test-pipeline
+spec:
+  workspaces:
+    - name: shared-workspace
+  tasks:
+    - name: fetch-repository
+      taskRef:
+        name: git-clone
+      workspaces:
+        - name: output
+          workspace: shared-workspace
+      params:
+        - name: url
+          value: https://github.com/wumaxd/pylint-pytest-example.git
+        - name: subdirectory
+          value: ""
+        - name: deleteExisting
+          value: "true"
+
+    - name: pytest
+      taskRef:
+        name: pytest
+      runAfter:
+        - fetch-repository
+      workspaces:
+        - name: source
+          workspace: shared-workspace
+      params:
+        - name: PYTHON
+          value: "3.7"
+        - name: ARGS
+          value: "-rfs"
+---
+apiVersion: tekton.dev/v1beta1
+kind: PipelineRun
+metadata:
+  name: python-test-pipeline-run
+spec:
+  pipelineRef:
+    name: python-test-pipeline
+  workspaces:
+    - name: shared-workspace
+      persistentvolumeclaim:
+        claimName: python-source-pvc