✨ Add action for updating issue

Author: bitwizeshift

issues/update/action.yaml

@@ -0,0 +1,76 @@
+name: Update issue
+description: |
+  A composite action for updating an existing github issue.
+  This action will update _all_ fields of the issue, and thus should be used
+  sparingly. Consider using the `issues/add-*` or `issues/remove-*` series of
+  steps to alter the issue in-place.
+  This requires `issues: write` permissions in order to work correctly.
+
+inputs:
+  issue-number:
+    required: false
+    default: "0"
+    description: |
+      The issue number to comment on.
+      If not specified, this will attempt to retrieve the issue number from the
+      Github `context` variable.
+  title:
+    required: true
+    description: "The title to use for the issue"
+  body:
+    required: false
+    default: ""
+    description: "The body text of the github issue"
+  labels:
+    required: false
+    default: ""
+    description: "A list of labels to add, separated by newlines."
+  assignees:
+    required: false
+    default: ""
+    description: "A list of assignees to add, separated by newlines."
+  owner:
+    required: false
+    default: ""
+    description: "The repository owner"
+  repo:
+    required: false
+    default: ""
+    description: "The repository"
+  retries:
+    required: false
+    default: "3"
+    description: "The number of times to try retrying"
+  retry-exempt-status-codes:
+    required: false
+    default: "400,401,403,404,422"
+    description: "The retry exempt status codes"
+outputs:
+  issue-number:
+    value: ${{ steps.create.outputs.issue-number }}
+    description: "The number of the created issue"
+  issue-url:
+    value: ${{ steps.create.outputs.issue-url }}
+    description: "The HTTP URL of the newly created issue"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Create issue
+      id: create
+      uses: actions/github-script@v7
+      with:
+        retries: ${{ inputs.retries }}
+        retry-exempt-status-codes: ${{ inputs.retry-exempt-status-codes }}
+        script: |
+          const { data: issue } = await github.rest.issues.update({
+            owner: `${{ inputs.owner }}` || context.repo.owner,
+            repo: `${{ inputs.repo }}` || context.repo.repo,
+            issue_number: ${{ inputs.issue-number }} || context.issue.number,
+            labels: `${{ inputs.labels }}`.split(/[\n,]/).map(s => s.trim()).filter(s => s),
+            assignees: `${{ inputs.assignees }}`.split(/[\n,]/).map(s => s.trim()).filter(s => s),
+            title: `${{ inputs.title }}`,
+            body: `${{ inputs.body }}`,
+          })
+          core.setOutput('issue-number', issue.number)
+          core.setOutput('issue-url', issue.html_url)