Overall improvements (and fix array placeholders)

src/main.ts

@@ -20,10 +20,20 @@ async function run(): Promise<void> {
     })
     if (configurationJson) {
       configJson = parseConfiguration(configurationJson)
+      if (configJson) {
+        core.info(`ℹ️ Retreived configuration via 'configurationJson'.`)
+      }
     }
     // read in the configuration from the file if possible
     const configurationFile: string = core.getInput('configuration')
     const configFile = resolveConfiguration(repositoryPath, configurationFile)
+    if (configFile) {
+      core.info(`ℹ️ Retreived configuration via 'configuration' (via file).`)
+    }
+
+    if (!configurationFile && !configFile) {
+      core.info(`ℹ️ No configuration provided. Using Defaults.`)
+    }
 
     // merge configs, use default values from DefaultConfig on missing definition
     const configuration = mergeConfiguration(configJson, configFile)

src/pullRequests.ts

@@ -47,8 +47,6 @@ type PullData = RestEndpointMethodTypes['pulls']['get']['response']['data']
 
 type PullsListData = RestEndpointMethodTypes['pulls']['list']['response']['data']
 
-type PullReviewData = RestEndpointMethodTypes['pulls']['listReviews']['response']['data']
-
 type PullReviewsData = RestEndpointMethodTypes['pulls']['listReviews']['response']['data']
 
 export class PullRequests {
@@ -143,22 +141,6 @@ export class PullRequests {
     return sortPrs(openPrs)
   }
 
-  async getReviewers(owner: string, repo: string, pr: PullRequestInfo): Promise<void> {
-    const options = this.octokit.pulls.listReviews.endpoint.merge({
-      owner,
-      repo,
-      pull_number: pr.number
-    })
-
-    for await (const response of this.octokit.paginate.iterator(options)) {
-      const reviews: PullReviewData = response.data as PullReviewData
-      pr.approvedReviewers = reviews
-        .filter(r => r.state === 'APPROVED')
-        .map(r => r.user?.login)
-        .filter(r => !!r) as string[]
-    }
-  }
-
   async getReviews(owner: string, repo: string, pr: PullRequestInfo): Promise<void> {
     const options = this.octokit.pulls.listReviews.endpoint.merge({
       owner,

src/releaseNotes.ts

@@ -165,33 +165,28 @@ export class ReleaseNotes {
     })
 
     if (baseBranches.length !== 0) {
-      core.info(`ℹ️ Retrieved ${mergedPullRequests.length} PRs for ${owner}/${repo} filtered by the 'base_branches' configuration.`)
+      core.info(`ℹ️ Retrieved ${finalPrs.length} PRs for ${owner}/${repo} filtered by the 'base_branches' configuration.`)
     }
 
-    if (fetchReviewers) {
-      core.info(`ℹ️ Fetching reviewers was enabled`)
-      // update PR information with reviewers who approved
-      for (const pr of finalPrs) {
-        await pullRequestsApi.getReviewers(owner, repo, pr)
-        if (pr.approvedReviewers.length > 0) {
-          core.info(`ℹ️ Retrieved ${pr.approvedReviewers.length} reviewer(s) for PR ${owner}/${repo}/#${pr.number}`)
-        }
-      }
-    } else {
-      core.debug(`ℹ️ Fetching reviewers was disabled`)
-    }
-
-    if (fetchReviews) {
-      core.info(`ℹ️ Fetching reviews was enabled`)
+    // fetch reviewers only if enabled (requires an additional API request per PR)
+    if (fetchReviews || fetchReviewers) {
+      core.info(`ℹ️ Fetching reviews (or reviewers) was enabled`)
       // update PR information with reviewers who approved
       for (const pr of finalPrs) {
         await pullRequestsApi.getReviews(owner, repo, pr)
-        if ((pr.reviews?.length || 0) > 0) {
-          core.info(`ℹ️ Retrieved ${pr.reviews?.length || 0} review(s) for PR ${owner}/${repo}/#${pr.number}`)
+
+        const reviews = pr.reviews
+        if (reviews && (reviews?.length || 0) > 0) {
+          core.info(`ℹ️ Retrieved ${reviews.length || 0} review(s) for PR ${owner}/${repo}/#${pr.number}`)
+
+          // backwards compatiblity
+          pr.approvedReviewers = reviews.filter(r => r.state === 'APPROVED').map(r => r.author)
+        } else {
+          core.debug(`No reviewer(s) for PR ${owner}/${repo}/#${pr.number}`)
         }
       }
     } else {
-      core.debug(`ℹ️ Fetching reviews was disabled`)
+      core.debug(`ℹ️ Fetching reviews (or reviewers) was disabled`)
     }
 
     return [diffInfo, finalPrs]

src/transform.ts

@@ -269,7 +269,7 @@ export function replaceEmptyTemplate(template: string, options: ReleaseNotesOpti
   }
   const placeholderMap = new Map<string, string>()
   fillAdditionalPlaceholders(options, placeholderMap)
-  return replacePlaceholders(template, new Map<string, string>(), placeholderMap, placeholders, undefined, options.configuration)
+  return replacePlaceholders(template, EMPTY_MAP, placeholderMap, placeholders, undefined, options.configuration)
 }
 
 function fillAdditionalPlaceholders(
@@ -394,9 +394,9 @@ function fillArrayPlaceholders(
   values: string[]
 ): void {
   for (let i = 0; i < values.length; i++) {
-    placeholderMap.set(`\${{${key}[${i}]}}`, values[i])
+    placeholderMap.set(`${key}[${i}]`, values[i])
   }
-  placeholderMap.set(`\${{${key}[*]}}`, values.join(', '))
+  placeholderMap.set(`${key}[*]`, values.join(', '))
 }
 
 function fillReviewPlaceholders(
@@ -407,10 +407,10 @@ function fillReviewPlaceholders(
   // retrieve the keys from the CommentInfo object
   for (const childKey of Object.keys(EMPTY_COMMENT_INFO)) {
     for (let i = 0; i < values.length; i++) {
-      placeholderMap.set(`\${{${parentKey}[${i}].${childKey}}}`, values[i][childKey as keyof CommentInfo]?.toLocaleString('en') || '')
+      placeholderMap.set(`${parentKey}[${i}].${childKey}`, values[i][childKey as keyof CommentInfo]?.toLocaleString('en') || '')
     }
     placeholderMap.set(
-      `\${{${parentKey}[*].${childKey}}}`,
+      `${parentKey}[*].${childKey}`,
       values.map(value => value[childKey as keyof CommentInfo]?.toLocaleString('en') || '').join(', ')
     )
   }

src/utils.ts

@@ -35,23 +35,25 @@ export function failOrError(message: string | Error, failOnError: boolean): void
 /**
  * Retrieves the configuration given the file path, if not found it will fallback to the `DefaultConfiguration`
  */
-export function resolveConfiguration(githubWorkspacePath: string, configurationFile: string): Configuration {
-  let configuration = DefaultConfiguration
+export function resolveConfiguration(githubWorkspacePath: string, configurationFile: string): Configuration | undefined {
   if (configurationFile) {
     const configurationPath = path.resolve(githubWorkspacePath, configurationFile)
     core.debug(`configurationPath = '${configurationPath}'`)
     const providedConfiguration = readConfiguration(configurationPath)
     if (providedConfiguration) {
-      configuration = providedConfiguration
+      const configuration = providedConfiguration
       core.info(`ℹ️ Configuration successfully loaded.`)
       if (core.isDebug()) {
         core.debug(`configuration = ${JSON.stringify(configuration)}`)
       }
+      return configuration
+    } else {
+      core.debug(`Configuration file could not be read.`)
     }
   } else {
-    core.info(`ℹ️ Configuration not provided. Using Defaults.`)
+    core.debug(`Configuration file not provided.`)
   }
-  return configuration
+  return undefined
 }
 
 /**