Add some logging

src/comment-upserter.ts

@@ -1,3 +1,4 @@
+import * as core from '@actions/core'
 import {RestEndpointMethods} from '@octokit/plugin-rest-endpoint-methods/dist-types/generated/method-types.d'
 
 import {MentionRule} from './configuration'
@@ -49,20 +50,26 @@ export class CommentUpserterImpl implements CommentUpserter {
 
     if (existingComment === undefined) {
       if (rules.length > 0) {
+        core.info('Creating a pull request comment')
         await issuesApi.createComment({
           owner: repo.owner,
           repo: repo.repo,
           issue_number: pullNumber,
           body: commentBody
         })
+      } else {
+        core.info('Not creating a pull request comment. No rules matched.')
       }
     } else if (existingComment.body !== commentBody) {
+      core.info('Updating pull request comment')
       await issuesApi.updateComment({
         owner: repo.owner,
         repo: repo.repo,
         comment_id: existingComment.id,
         body: commentBody
       })
+    } else {
+      core.info('Not updating pull request comment. Comment body matched.')
     }
   }
 

src/configuration-reader.ts

@@ -1,3 +1,4 @@
+import * as core from '@actions/core'
 import {RestEndpointMethods} from '@octokit/plugin-rest-endpoint-methods/dist-types/generated/method-types.d'
 import * as yaml from 'js-yaml'
 
@@ -26,6 +27,7 @@ export class ConfigurationReaderImpl implements ConfigurationReader {
 
   /** @override */
   async read(repo: Repo, ref: string): Promise<Configuration> {
+    core.debug(`Reading codemention.yml on ${ref}`)
     const {data} = await this.octokitRest.repos.getContent({
       owner: repo.owner,
       repo: repo.repo,

src/files-changed-reader.ts

@@ -1,3 +1,4 @@
+import * as core from '@actions/core'
 import {RestEndpointMethods} from '@octokit/plugin-rest-endpoint-methods/dist-types/generated/method-types.d'
 import parseDiff from 'parse-diff'
 
@@ -44,6 +45,8 @@ export class FilesChangedReaderImpl implements FilesChangedReader {
       }
     }
     filesChanged.delete('/dev/null')
-    return [...filesChanged]
+    const result = [...filesChanged]
+    core.debug(`Files changed: ${result}`)
+    return result
   }
 }

src/runner.ts

@@ -1,3 +1,4 @@
+import * as core from '@actions/core'
 import {Context} from '@actions/github/lib/context'
 import {PullRequestEvent} from '@octokit/webhooks-types/schema.d'
 import micromatch from 'micromatch'
@@ -31,6 +32,7 @@ export default class Runner {
     const event = context.payload as PullRequestEvent
     const pullRequest = event.pull_request
     if (pullRequest.draft) {
+      core.debug('Skipping draft pull request')
       return
     }