- introduce new flag to include open PRs into the changelog

- only fetch open with this flag
- expand pull request spec with
  - status, created at timestamp
- expand definition for placeholder patterns in the changelog

src/transform.ts

@@ -95,6 +95,7 @@ export function buildChangelog(
 
   const categorizedPrs: string[] = []
   const ignoredPrs: string[] = []
+  const openPrs: string[] = []
   const uncategorizedPrs: string[] = []
 
   // bring elements in order
@@ -109,6 +110,10 @@ export function buildChangelog(
       continue
     }
 
+    if (pr.status === 'open') {
+      openPrs.push(body)
+    }
+
     let matched = false
     for (const [category, pullRequests] of categorized) {
       // check if any exclude label matches
@@ -206,6 +211,20 @@ export function buildChangelog(
   }
   core.setOutput('uncategorized_prs', uncategorizedPrs.length)
 
+  let changelogOpen = ''
+  if (openPrs.length > 0) {
+    for (const pr of openPrs) {
+      changelogOpen = `${changelogOpen + pr}\n`
+    }
+    core.info(`✒️ Wrote ${openPrs.length} open pull requests down`)
+    if (core.isDebug()) {
+      for (const pr of openPrs) {
+        core.debug(`    ${pr}`)
+      }
+    }
+    core.setOutput('open_prs', openPrs.length)
+  }
+
   let changelogIgnored = ''
   for (const pr of ignoredPrs) {
     changelogIgnored = `${changelogIgnored + pr}\n`
@@ -227,6 +246,10 @@ export function buildChangelog(
     /\${{UNCATEGORIZED}}/g,
     changelogUncategorized
   )
+  transformedChangelog = transformedChangelog.replace(
+    /\${{OPEN}}/g,
+    changelogOpen
+  )
   transformedChangelog = transformedChangelog.replace(
     /\${{IGNORED}}/g,
     changelogIgnored
@@ -241,6 +264,10 @@ export function buildChangelog(
     /\${{UNCATEGORIZED_COUNT}}/g,
     uncategorizedPrs.length.toString()
   )
+  transformedChangelog = transformedChangelog.replace(
+    /\${{OPEN_COUNT}}/g,
+    openPrs.length.toString()
+  )
   transformedChangelog = transformedChangelog.replace(
     /\${{IGNORED_COUNT}}/g,
     ignoredPrs.length.toString()
@@ -283,15 +310,20 @@ function fillTemplate(pr: PullRequestInfo, template: string): string {
   transformed = transformed.replace(/\${{NUMBER}}/g, pr.number.toString())
   transformed = transformed.replace(/\${{TITLE}}/g, pr.title)
   transformed = transformed.replace(/\${{URL}}/g, pr.htmlURL)
+  transformed = transformed.replace(/\${{STATUS}}/g, pr.status)
+  transformed = transformed.replace(
+    /\${{CREATED_AT}}/g,
+    pr.createdAt.toISOString()
+  )
   transformed = transformed.replace(
     /\${{MERGED_AT}}/g,
-    pr.mergedAt.toISOString()
+    pr.mergedAt?.toISOString() || ''
   )
   transformed = transformed.replace(/\${{MERGE_SHA}}/g, pr.mergeCommitSha)
   transformed = transformed.replace(/\${{AUTHOR}}/g, pr.author)
   transformed = transformed.replace(
     /\${{LABELS}}/g,
-    [...pr.labels]?.join(', ') || ''
+    [...pr.labels]?.filter(l => !l.startsWith('##rcba-'))?.join(', ') || ''
   )
   transformed = transformed.replace(/\${{MILESTONE}}/g, pr.milestone || '')
   transformed = transformed.replace(/\${{BODY}}/g, pr.body)
@@ -384,7 +416,7 @@ function extractValues(
 
   if (extractor.onProperty !== undefined) {
     let results: string[] = []
-    const list: ('title' | 'author' | 'milestone' | 'body')[] =
+    const list: ('title' | 'author' | 'milestone' | 'body' | 'status')[] =
       extractor.onProperty
     // eslint-disable-next-line @typescript-eslint/prefer-for-of
     for (let i = 0; i < list.length; i++) {