From 5dc0b850d89352cb4807f6d6da0aeba77f35175d Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Feb 2026 06:50:17 +0000
Subject: [PATCH 1/5] Initial plan


From 5711546e5a9479bd0b58ae2a9ea8d4b7bc973237 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Feb 2026 06:51:37 +0000
Subject: [PATCH 2/5] Fix grep error handling to distinguish no matches from
 real failures

Co-authored-by: liyu-ma <17180634+liyu-ma@users.noreply.github.com>
---
 .github/workflows/terraform-validation.yml | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/terraform-validation.yml b/.github/workflows/terraform-validation.yml
index fcd66e90c0..ffdd32eeb8 100644
--- a/.github/workflows/terraform-validation.yml
+++ b/.github/workflows/terraform-validation.yml
@@ -200,11 +200,26 @@ jobs:
           # Longest Azure region name: 18 (e.g., australiasoutheast)
           MAX_AKS_NAME_LENGTH=40
 
-          aks_names=$(grep -oP 'aks_name\s*=\s*"\K[^"]+' "$TERRAFORM_INPUT_FILE" || true)
-          if [ -z "$aks_names" ]; then
+          # Check if file is readable first
+          if [ ! -r "$TERRAFORM_INPUT_FILE" ]; then
+            echo "::error::Cannot read file: $TERRAFORM_INPUT_FILE"
+            exit 1
+          fi
+
+          # Run grep and capture exit code
+          aks_names=$(grep -oP 'aks_name\s*=\s*"\K[^"]+' "$TERRAFORM_INPUT_FILE") || grep_exit_code=$?
+          
+          # Exit code 1 means no matches found (skip validation)
+          if [ "${grep_exit_code:-0}" -eq 1 ]; then
             echo "No aks_name found in $TERRAFORM_INPUT_FILE, skipping validation."
             exit 0
           fi
+          
+          # Any other non-zero exit code is a real error
+          if [ "${grep_exit_code:-0}" -ne 0 ]; then
+            echo "::error::grep failed with exit code ${grep_exit_code}"
+            exit 1
+          fi
 
           failed=false
           while IFS= read -r name; do

From c3ba86b8433e5f738dea4419908ab3ce2a403584 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Feb 2026 06:52:20 +0000
Subject: [PATCH 3/5] Improve grep exit code handling with explicit
 if-elif-else structure

Co-authored-by: liyu-ma <17180634+liyu-ma@users.noreply.github.com>
---
 .github/workflows/terraform-validation.yml | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/terraform-validation.yml b/.github/workflows/terraform-validation.yml
index ffdd32eeb8..f889aa6e99 100644
--- a/.github/workflows/terraform-validation.yml
+++ b/.github/workflows/terraform-validation.yml
@@ -206,17 +206,22 @@ jobs:
             exit 1
           fi
 
-          # Run grep and capture exit code
-          aks_names=$(grep -oP 'aks_name\s*=\s*"\K[^"]+' "$TERRAFORM_INPUT_FILE") || grep_exit_code=$?
+          # Run grep and capture exit code explicitly
+          set +e
+          aks_names=$(grep -oP 'aks_name\s*=\s*"\K[^"]+' "$TERRAFORM_INPUT_FILE")
+          grep_exit_code=$?
+          set -e
           
-          # Exit code 1 means no matches found (skip validation)
-          if [ "${grep_exit_code:-0}" -eq 1 ]; then
+          # Handle grep exit codes
+          if [ "$grep_exit_code" -eq 0 ]; then
+            # Matches found, proceed with validation
+            :
+          elif [ "$grep_exit_code" -eq 1 ]; then
+            # No matches found, skip validation
             echo "No aks_name found in $TERRAFORM_INPUT_FILE, skipping validation."
             exit 0
-          fi
-          
-          # Any other non-zero exit code is a real error
-          if [ "${grep_exit_code:-0}" -ne 0 ]; then
+          else
+            # Real error (e.g., grep syntax error)
             echo "::error::grep failed with exit code ${grep_exit_code}"
             exit 1
           fi

From 33cfb3886bab37f2af59361d24430c495378a708 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Feb 2026 06:52:44 +0000
Subject: [PATCH 4/5] Clarify comment for exit code 0 case

Co-authored-by: liyu-ma <17180634+liyu-ma@users.noreply.github.com>
---
 .github/workflows/terraform-validation.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/terraform-validation.yml b/.github/workflows/terraform-validation.yml
index f889aa6e99..81698907a4 100644
--- a/.github/workflows/terraform-validation.yml
+++ b/.github/workflows/terraform-validation.yml
@@ -214,7 +214,7 @@ jobs:
           
           # Handle grep exit codes
           if [ "$grep_exit_code" -eq 0 ]; then
-            # Matches found, proceed with validation
+            # Matches found, proceed with validation below
             :
           elif [ "$grep_exit_code" -eq 1 ]; then
             # No matches found, skip validation

From 86258f23c36946a443e736a7e58a7099c6413418 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 12 Feb 2026 23:21:34 +0000
Subject: [PATCH 5/5] Revert grep error handling changes per maintainer
 feedback

Co-authored-by: liyu-ma <17180634+liyu-ma@users.noreply.github.com>
---
 .github/workflows/terraform-validation.yml | 24 ++--------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/.github/workflows/terraform-validation.yml b/.github/workflows/terraform-validation.yml
index 81698907a4..fcd66e90c0 100644
--- a/.github/workflows/terraform-validation.yml
+++ b/.github/workflows/terraform-validation.yml
@@ -200,30 +200,10 @@ jobs:
           # Longest Azure region name: 18 (e.g., australiasoutheast)
           MAX_AKS_NAME_LENGTH=40
 
-          # Check if file is readable first
-          if [ ! -r "$TERRAFORM_INPUT_FILE" ]; then
-            echo "::error::Cannot read file: $TERRAFORM_INPUT_FILE"
-            exit 1
-          fi
-
-          # Run grep and capture exit code explicitly
-          set +e
-          aks_names=$(grep -oP 'aks_name\s*=\s*"\K[^"]+' "$TERRAFORM_INPUT_FILE")
-          grep_exit_code=$?
-          set -e
-          
-          # Handle grep exit codes
-          if [ "$grep_exit_code" -eq 0 ]; then
-            # Matches found, proceed with validation below
-            :
-          elif [ "$grep_exit_code" -eq 1 ]; then
-            # No matches found, skip validation
+          aks_names=$(grep -oP 'aks_name\s*=\s*"\K[^"]+' "$TERRAFORM_INPUT_FILE" || true)
+          if [ -z "$aks_names" ]; then
             echo "No aks_name found in $TERRAFORM_INPUT_FILE, skipping validation."
             exit 0
-          else
-            # Real error (e.g., grep syntax error)
-            echo "::error::grep failed with exit code ${grep_exit_code}"
-            exit 1
           fi
 
           failed=false