From e242a7580bc70bb9c5ea8fd773c58a49c11773cc Mon Sep 17 00:00:00 2001
From: Shantanu Jain <hauntsaninja@gmail.com>
Date: Wed, 8 Jan 2025 16:00:31 -0800
Subject: [PATCH] Fix mypy_primer comment workflow

---
 .github/workflows/mypy_primer_comment.yml | 25 +++++++++++++++--------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/mypy_primer_comment.yml b/.github/workflows/mypy_primer_comment.yml
index e484589ad446..be0dda7f7dec 100644
--- a/.github/workflows/mypy_primer_comment.yml
+++ b/.github/workflows/mypy_primer_comment.yml
@@ -17,12 +17,6 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
-      - name: Hide old comments
-        uses: kanga333/comment-hider@c12bb20b48aeb8fc098e35967de8d4f8018fffdf  # v0.4.0
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          issue_number: ${{ steps.post-comment.outputs.result }}
-
       - name: Download diffs
         uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea  # v7.0.1
         with:
@@ -45,8 +39,22 @@ jobs:
             fs.writeFileSync("diff.zip", Buffer.from(download.data));
 
       - run: unzip diff.zip
-      - run: |
-          cat diff_*.txt | tee fulldiff.txt
+
+      - name: Get PR number
+        id: get-pr-number
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea  # v7.0.1
+        with:
+          script: |
+            const fs = require('fs');
+            return parseInt(fs.readFileSync("pr_number.txt", { encoding: "utf8" }))
+
+      - name: Hide old comments
+        uses: kanga333/comment-hider@c12bb20b48aeb8fc098e35967de8d4f8018fffdf  # v0.4.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          issue_number: ${{ steps.get-pr-number.outputs.result }}
+
+      - run: cat diff_*.txt | tee fulldiff.txt
 
       - name: Post comment
         id: post-comment
@@ -93,4 +101,3 @@ jobs:
                 body
               })
             }
-            return prNumber