From a73600a18d5447fd7608e860e1b6fed5bd8ed0b7 Mon Sep 17 00:00:00 2001
From: Salah-Eddine Saakoun <salah-eddine.saakoun@consensys.net>
Date: Mon, 18 Aug 2025 19:47:06 +0100
Subject: [PATCH 1/2] fix(changelog-check): improve devDependencies section
 detection in git diffs

---
 src/changelog-check.ts | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/changelog-check.ts b/src/changelog-check.ts
index 10f69320..628dafd5 100644
--- a/src/changelog-check.ts
+++ b/src/changelog-check.ts
@@ -140,10 +140,7 @@ const getDevDependencyLines = (
     }
   }
 
-  if (
-    devDependencySectionStart === undefined ||
-    devDependencySectionEnd === undefined
-  ) {
+  if (devDependencySectionStart === undefined) {
     return [];
   }
 
@@ -151,10 +148,12 @@ const getDevDependencyLines = (
   for (const changeLine of nonVersionLines) {
     const lineIndex = allLines.findIndex((line) => line === changeLine);
     if (lineIndex !== -1) {
-      // Check if this line falls within any devDependencies section
+      // Check if this line falls within the devDependencies section
+      // If we don't have an end, assume everything after start is in devDependencies
       const isInDevDeps =
         lineIndex >= devDependencySectionStart &&
-        lineIndex <= devDependencySectionEnd;
+        (devDependencySectionEnd === undefined ||
+          lineIndex <= devDependencySectionEnd);
 
       if (isInDevDeps) {
         devDependencyLines.push(changeLine);

From 39fafddb003916d0fe4dc5810c6401510cb852d2 Mon Sep 17 00:00:00 2001
From: Salah-Eddine Saakoun <salah-eddine.saakoun@consensys.net>
Date: Wed, 5 Nov 2025 15:59:38 +0100
Subject: [PATCH 2/2] fix: use maximum context to ensure section headers are
 visible

---
 src/changelog-check.ts | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/changelog-check.ts b/src/changelog-check.ts
index 628dafd5..c9285ccc 100644
--- a/src/changelog-check.ts
+++ b/src/changelog-check.ts
@@ -140,7 +140,10 @@ const getDevDependencyLines = (
     }
   }
 
-  if (devDependencySectionStart === undefined) {
+  if (
+    devDependencySectionStart === undefined ||
+    devDependencySectionEnd === undefined
+  ) {
     return [];
   }
 
@@ -148,12 +151,10 @@ const getDevDependencyLines = (
   for (const changeLine of nonVersionLines) {
     const lineIndex = allLines.findIndex((line) => line === changeLine);
     if (lineIndex !== -1) {
-      // Check if this line falls within the devDependencies section
-      // If we don't have an end, assume everything after start is in devDependencies
+      // Check if this line falls within any devDependencies section
       const isInDevDeps =
         lineIndex >= devDependencySectionStart &&
-        (devDependencySectionEnd === undefined ||
-          lineIndex <= devDependencySectionEnd);
+        lineIndex <= devDependencySectionEnd;
 
       if (isInDevDeps) {
         devDependencyLines.push(changeLine);
@@ -201,7 +202,13 @@ async function analyzePackageJsonChanges(
   try {
     const { stdout } = await execa(
       'git',
-      ['diff', '-U20', `origin/${baseRef}...HEAD`, '--', filePath],
+      [
+        'diff',
+        '-U9999', // Show maximum context to ensure section headers are visible
+        `origin/${baseRef}...HEAD`,
+        '--',
+        filePath,
+      ],
       {
         cwd: repoPath,
       },