Create a new branch if makePullRequest is true in git config

[nnnkkk7]

What this PR does / why we need it:
Add createPullRequest flag to event watcher config, to create new branch when commit changes in event watcher.

Which issue(s) this PR fixes:

Part of issue #4360

Does this PR introduce a user-facing change?:

Add makePullRequest option for users to choose whether or not to create a new branch when commit changes in event watcher.

[sivchari]

Looks good to me. Some nits.

[khanhtc1202]

And besides, for simplicity, I think we can make this makePullRequest setting available only in app-config eventwatcher since the EventWatcher kind manifest is deprecated and will be removed later. There is no reason to add new features to deprecated configuration.

ref: https://pipecd.dev/docs/user-guide/event-watcher/#use-the-pipe-directory

[ffjlabo]

🚀 🚀

[khanhtc1202]

👍

[ffjlabo]

I'll check the behavior 👍

[ffjlabo]

makePullRequest: true

apiVersion: pipecd.dev/v1beta1
kind: KubernetesApp
spec:
  name: canary-with-script-run
...
  eventWatcher:
    - matcher:
        name: test
      handler:
        type: GIT_UPDATE
        config:
          makePullRequest: true
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.template.spec.containers[0].image

• eventName: test

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=test \
    --data=gcr.io/pipecd/helloworld:v0.45.0

✅ created the new branch named test-

---

✅ the change is as I expected!

[ffjlabo]

makePullRequest: false

apiVersion: pipecd.dev/v1beta1
kind: KubernetesApp
spec:
  name: canary-with-script-run
...
  eventWatcher:
    - matcher:
        name: test
      handler:
        type: GIT_UPDATE
        config:
          makePullRequest: false
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.template.spec.containers[0].image

• eventName: test

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=test \
    --data=gcr.io/pipecd/helloworld:v0.45.0

✅ pushed the changes directly

✅ the change is as I expected!

[ffjlabo]

not set makePullRequest

apiVersion: pipecd.dev/v1beta1
kind: KubernetesApp
spec:
  name: canary-with-script-run
...
  eventWatcher:
    - matcher:
        name: test
      handler:
        type: GIT_UPDATE
        config:
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.template.spec.containers[0].image

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=test \
    --data=gcr.io/pipecd/helloworld:v0.44.0

✅ pushed the changes directly

✅ the change is as I expected!

[ffjlabo]

It works fine! Thank you! @nnnkkk7

[ffjlabo]

Multi events (one is true, other is false)

apiVersion: pipecd.dev/v1beta1
kind: KubernetesApp
spec:
  name: canary-with-script-run
...
  eventWatcher:
    - matcher:
        name: test
      handler:
        type: GIT_UPDATE
        config:
          makePullRequest: false
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.template.spec.containers[0].image
    - matcher:
        name: hoge
      handler:
        type: GIT_UPDATE
        config:
          makePullRequest: true
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.replicas

test: makePullRequest false
hoge: makePullRequest true

✅ Created a new branch when the event hoge happens

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=hoge \
    --data=1

The change is as I expected 👍

✅ Pushed the changes directly to the main branch when the event test happens

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=test \
    --data=gcr.io/pipecd/helloworld:v0.45.0

[ffjlabo]

Multi events (all are true)

apiVersion: pipecd.dev/v1beta1
kind: KubernetesApp
spec:
  name: canary-with-script-run
...
  eventWatcher:
    - matcher:
        name: test
      handler:
        type: GIT_UPDATE
        config:
          makePullRequest: true
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.template.spec.containers[0].image
    - matcher:
        name: hoge
      handler:
        type: GIT_UPDATE
        config:
          makePullRequest: true
          replacements:
            - file: deployment.yaml
              yamlField: $.spec.replicas

test: makePullRequest true
hoge: makePullRequest true

for event test

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=test \
    --data=gcr.io/pipecd/helloworld:v0.44.0

for event hoge

pipectl event register \
    --address=XXX \
    --api-key=XXX \
    --name=hoge \
    --data=1

---

---

✅ Created a new branch when the event test happens and also for the event hoge

✅ These changes are also OK.