From 35f02e1fa725dc7aaf04ded1e3b93acf979d8e9d Mon Sep 17 00:00:00 2001
From: "FAREAST\\chunyu" <chunyu@microsoft.com>
Date: Thu, 24 Oct 2024 16:13:16 +0800
Subject: [PATCH 1/3] skip last line of breaking change log

---
 eng/scripts/automation/GenerateAndBuildLib.ps1 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eng/scripts/automation/GenerateAndBuildLib.ps1 b/eng/scripts/automation/GenerateAndBuildLib.ps1
index 1bec3c7e9bed5..0927f2ac7517c 100644
--- a/eng/scripts/automation/GenerateAndBuildLib.ps1
+++ b/eng/scripts/automation/GenerateAndBuildLib.ps1
@@ -856,7 +856,7 @@ function GeneratePackage()
                 $hasBreakingChange = $false
             }
             else {
-                $logFile = Get-Content -Path $logFilePath | select-object -skip 2
+                $logFile = Get-Content -Path $logFilePath | select-object -SkipLast 1
                 $breakingChanges = $logFile -join ",`n"
                 $content = "Breaking Changes: $breakingChanges"
                 $hasBreakingChange = $true

From 3a1ef6e5b41e166723ce93652e44345e17d76395 Mon Sep 17 00:00:00 2001
From: "FAREAST\\chunyu" <chunyu@microsoft.com>
Date: Fri, 25 Oct 2024 13:55:33 +0800
Subject: [PATCH 2/3] add log

---
 eng/scripts/automation/GenerateAndBuildLib.ps1 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/eng/scripts/automation/GenerateAndBuildLib.ps1 b/eng/scripts/automation/GenerateAndBuildLib.ps1
index 0927f2ac7517c..1e536173f71b7 100644
--- a/eng/scripts/automation/GenerateAndBuildLib.ps1
+++ b/eng/scripts/automation/GenerateAndBuildLib.ps1
@@ -856,6 +856,7 @@ function GeneratePackage()
                 $hasBreakingChange = $false
             }
             else {
+                Write-Host "Breaking changes detected in the build log."
                 $logFile = Get-Content -Path $logFilePath | select-object -SkipLast 1
                 $breakingChanges = $logFile -join ",`n"
                 $content = "Breaking Changes: $breakingChanges"

From 37b7cbe29684a1be107f98b37cd9168efe1b0cd7 Mon Sep 17 00:00:00 2001
From: "FAREAST\\chunyu" <chunyu@microsoft.com>
Date: Fri, 25 Oct 2024 15:59:20 +0800
Subject: [PATCH 3/3] retrieve breaking change from log

---
 eng/scripts/automation/GenerateAndBuildLib.ps1 | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/eng/scripts/automation/GenerateAndBuildLib.ps1 b/eng/scripts/automation/GenerateAndBuildLib.ps1
index 1e536173f71b7..95e094d52312d 100644
--- a/eng/scripts/automation/GenerateAndBuildLib.ps1
+++ b/eng/scripts/automation/GenerateAndBuildLib.ps1
@@ -747,6 +747,7 @@ function GeneratePackage()
     $artifacts = @()
     $apiViewArtifact = ""
     $hasBreakingChange = $false
+    $breakingChangeItems = @()
     $content = ""
     $result = "succeeded"
     $isGenerateSuccess = $true
@@ -858,7 +859,13 @@ function GeneratePackage()
             else {
                 Write-Host "Breaking changes detected in the build log."
                 $logFile = Get-Content -Path $logFilePath | select-object -SkipLast 1
-                $breakingChanges = $logFile -join ",`n"
+                $regex = "error( ?):( ?)(?<breakingChange>.*) .*\["
+                foreach ($line in $logFile) {
+                    if ($line -match $regex) {
+                        $breakingChangeItems += $matches["breakingChange"]
+                    }
+                }
+                $breakingChanges = $breakingChangeItems -join ",`n"
                 $content = "Breaking Changes: $breakingChanges"
                 $hasBreakingChange = $true
             }
@@ -872,6 +879,7 @@ function GeneratePackage()
     $changelog = [PSCustomObject]@{
         content           = $content
         hasBreakingChange = $hasBreakingChange
+        breakingChangeItems = $breakingChangeItems
     }
 
     $ciFilePath = "sdk/$service/ci.yml"