Add more useful fields to the CSV artifact, as well as configuration for artifact retention.

.prettierignore

@@ -1,3 +1,4 @@
 dist/
 node_modules/
-coverage/
+coverage/
+src/configuration.ts

src/archiver.ts

@@ -0,0 +1,56 @@
+import * as core from '@actions/core'
+import { DefaultArtifactClient } from '@actions/artifact'
+import { PullRequest } from '@octokit/webhooks-types' // eslint-disable-line import/no-unresolved
+import * as fs from 'fs'
+import * as path from 'path'
+import { Score } from 'sizeup-core'
+import { Configuration } from './configuration'
+import { OptInStatus } from './initializer'
+
+export async function createScoreArtifact(
+  pull: PullRequest,
+  score: Score,
+  optInStatus: OptInStatus,
+  config: Configuration
+): Promise<void> {
+  if (!config.archiving?.persistScoreArtifact) {
+    core.info('Skipping score artifact creation')
+    return
+  }
+
+  core.info('Creating score artifact')
+
+  const tmpDir = path.resolve(__dirname, './tmp')
+  const scoreFile = path.resolve(tmpDir, './sizeup-score/sizeup-score.csv')
+
+  fs.mkdirSync(path.dirname(scoreFile), { recursive: true })
+  fs.writeFileSync(scoreFile, scoreFileContents(pull, score, optInStatus))
+
+  const client = new DefaultArtifactClient()
+  await client.uploadArtifact('sizeup-score', [scoreFile], tmpDir, {
+    retentionDays: config.archiving?.artifactRetention
+  })
+}
+
+function scoreFileContents(
+  pull: PullRequest,
+  score: Score,
+  optInStatus: OptInStatus
+): string {
+  const fields = [
+    ['pull-request-number', `${pull.number}`],
+    ['opted-in', `${optInStatus === OptInStatus.In}`],
+    ['score', `${score.result}`],
+    ['category', score.category?.name || ''],
+    ['timestamp', `${Date.now()}`]
+  ]
+
+  const header = []
+  const data = []
+  for (const [key, value] of fields) {
+    header.push(key)
+    data.push(value)
+  }
+
+  return [header.join(','), data.join(',')].join('\n')
+}

src/config/schema.json

@@ -64,10 +64,20 @@
             "type": "boolean",
             "default": false
         },
-        "persistScoreArtifact": {
-            "description": "Whether or not to create a workflow artifact that contains details about the score",
-            "type": "boolean",
-            "default": false
+        "archiving": {
+            "description": "Configuration options for persisting the output of this workflow",
+            "type": "object",
+            "properties": {
+                "persistScoreArtifact": {
+                    "description": "Whether or not to create a workflow artifact that contains details about the score",
+                    "type": "boolean",
+                    "default": false
+                },
+                "artifactRetention": {
+                    "description": "Retention period (in days) for the artifact created by this workflow. The actual retention period used may be shorter than this in the presence of an overriding repository- or organization- level retention period setting.",
+                    "type": "number"
+                }
+            }
         },
         "sizeup": {
             "$ref": "https://raw.githubusercontent.com/lerebear/sizeup/main/src/config/schema.json"