From a578ae94b703155fbebff11de1bb5bbd297b5ced Mon Sep 17 00:00:00 2001
From: Jagdish Prajapati <jagadishdrp@gmail.com>
Date: Sat, 27 Sep 2025 13:33:02 +0530
Subject: [PATCH 1/5] Add workflow for deprecated exercises

---
 .../workflows/check-deprecated-exercises.yml  | 15 ++++++
 bin/test-deprecated-exercises                 | 50 +++++++++++++++++++
 2 files changed, 65 insertions(+)
 create mode 100644 .github/workflows/check-deprecated-exercises.yml
 create mode 100644 bin/test-deprecated-exercises

diff --git a/.github/workflows/check-deprecated-exercises.yml b/.github/workflows/check-deprecated-exercises.yml
new file mode 100644
index 000000000..9e39d6af7
--- /dev/null
+++ b/.github/workflows/check-deprecated-exercises.yml
@@ -0,0 +1,15 @@
+name: Deprecated
+
+on:
+  pull_request:
+
+jobs:
+  test-deprecated:
+    name: Check for deprecated exercises
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+        with:
+          fetch-depth: 0
+      - name: Test deprecated exercises using test-deprecated-exercises
+        run: bin/test-deprecated-exercises
diff --git a/bin/test-deprecated-exercises b/bin/test-deprecated-exercises
new file mode 100644
index 000000000..85384bdd5
--- /dev/null
+++ b/bin/test-deprecated-exercises
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+# Determine the base branch of the PR
+BASE_BRANCH=${GITHUB_BASE_REF:-main}
+
+# Fetch full history for proper diff
+git fetch origin "$BASE_BRANCH"
+
+# Compute merge base
+MERGE_BASE=$(git merge-base HEAD origin/"$BASE_BRANCH")
+
+# Get changed files relative to merge base
+changed_files=$(git diff --name-only "$MERGE_BASE" HEAD)
+
+# Extract unique exercise directories
+changed_exercises=$(echo "$changed_files" | \
+  grep -E '^exercises/(practice|concept)/' | \
+  cut -d/ -f1-3 | sort -u)
+
+echo "$changed_exercises"
+
+if [ -z "$changed_exercises" ]; then
+  echo "No exercises changed!"
+  exit 0
+fi
+
+# Deprecated practice exercises
+deprecated_exercises=(
+  "exercises/practice/accumulate"
+  "exercises/practice/beer-song"
+  "exercises/practice/binary"
+  "exercises/practice/diffie-hellman"
+  "exercises/practice/hexadecimal"
+  "exercises/practice/minesweeper"
+  "exercises/practice/octal"
+  "exercises/practice/strain"
+  "exercises/practice/trinary"
+  "exercises/concept/play-your-cards"
+)
+
+# Check for deprecated ones
+for ex in $changed_exercises; do
+  if printf '%s\n' "${deprecated_exercises[@]}" | grep -qx "$ex"; then
+    echo "❌ Deprecated exercise changed: $ex"
+    exit 1
+  fi
+done
+
+echo "✅ No deprecated exercises changed!"
\ No newline at end of file

From d6337aca4bebe1a6a676ac53d7faeca9c78ffff9 Mon Sep 17 00:00:00 2001
From: Jagdish Prajapati <jagadishdrp@gmail.com>
Date: Sat, 27 Sep 2025 13:39:10 +0530
Subject: [PATCH 2/5] Mark test-deprecated-exercises as executable

---
 bin/test-deprecated-exercises | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 mode change 100644 => 100755 bin/test-deprecated-exercises

diff --git a/bin/test-deprecated-exercises b/bin/test-deprecated-exercises
old mode 100644
new mode 100755

From 2d63504ef799ec25a6a4b0f72aa6bb7d2e963e08 Mon Sep 17 00:00:00 2001
From: Jagdish Prajapati <jagadishdrp@gmail.com>
Date: Sat, 27 Sep 2025 14:07:52 +0530
Subject: [PATCH 3/5] Updating script

---
 bin/test-deprecated-exercises | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/bin/test-deprecated-exercises b/bin/test-deprecated-exercises
index 85384bdd5..16e1251e0 100755
--- a/bin/test-deprecated-exercises
+++ b/bin/test-deprecated-exercises
@@ -14,9 +14,8 @@ MERGE_BASE=$(git merge-base HEAD origin/"$BASE_BRANCH")
 changed_files=$(git diff --name-only "$MERGE_BASE" HEAD)
 
 # Extract unique exercise directories
-changed_exercises=$(echo "$changed_files" | \
-  grep -E '^exercises/(practice|concept)/' | \
-  cut -d/ -f1-3 | sort -u)
+changed_exercises=$(echo "$changed_files" | grep -E '^exercises/(practice|concept)/' || true)
+changed_exercises=$(echo "$changed_exercises" | cut -d/ -f1-3 | sort -u)
 
 echo "$changed_exercises"
 

From 214d71e1c524f9ec7f878378d7d3bbce57fb9034 Mon Sep 17 00:00:00 2001
From: Jagdish Prajapati <jagadishdrp@gmail.com>
Date: Sat, 27 Sep 2025 17:57:13 +0530
Subject: [PATCH 4/5] Dynamically load deprecated files from config.json using
 jq

---
 .../workflows/check-deprecated-exercises.yml  |  2 ++
 bin/test-deprecated-exercises                 | 27 +++++++------------
 2 files changed, 12 insertions(+), 17 deletions(-)

diff --git a/.github/workflows/check-deprecated-exercises.yml b/.github/workflows/check-deprecated-exercises.yml
index 9e39d6af7..95821cad8 100644
--- a/.github/workflows/check-deprecated-exercises.yml
+++ b/.github/workflows/check-deprecated-exercises.yml
@@ -11,5 +11,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
         with:
           fetch-depth: 0
+      - name: Install jq
+        run: sudo apt-get update && sudo apt-get install -y jq
       - name: Test deprecated exercises using test-deprecated-exercises
         run: bin/test-deprecated-exercises
diff --git a/bin/test-deprecated-exercises b/bin/test-deprecated-exercises
index 16e1251e0..5260d6b6c 100755
--- a/bin/test-deprecated-exercises
+++ b/bin/test-deprecated-exercises
@@ -17,33 +17,26 @@ changed_files=$(git diff --name-only "$MERGE_BASE" HEAD)
 changed_exercises=$(echo "$changed_files" | grep -E '^exercises/(practice|concept)/' || true)
 changed_exercises=$(echo "$changed_exercises" | cut -d/ -f1-3 | sort -u)
 
-echo "$changed_exercises"
-
+# Early exit if no exercise changed
 if [ -z "$changed_exercises" ]; then
   echo "No exercises changed!"
   exit 0
 fi
 
-# Deprecated practice exercises
-deprecated_exercises=(
-  "exercises/practice/accumulate"
-  "exercises/practice/beer-song"
-  "exercises/practice/binary"
-  "exercises/practice/diffie-hellman"
-  "exercises/practice/hexadecimal"
-  "exercises/practice/minesweeper"
-  "exercises/practice/octal"
-  "exercises/practice/strain"
-  "exercises/practice/trinary"
-  "exercises/concept/play-your-cards"
-)
+# Load deprecated exercises from config.json
+deprecated_exercises=$(jq -r '
+  [ 
+    (.exercises.concept[]? | select(.status=="deprecated") | "exercises/concept/" + .slug),
+    (.exercises.practice[]? | select(.status=="deprecated") | "exercises/practice/" + .slug)
+  ] | .[]
+' config.json)
 
 # Check for deprecated ones
 for ex in $changed_exercises; do
-  if printf '%s\n' "${deprecated_exercises[@]}" | grep -qx "$ex"; then
+  if echo "$deprecated_exercises" | grep -qx "$ex"; then
     echo "❌ Deprecated exercise changed: $ex"
     exit 1
   fi
 done
 
-echo "✅ No deprecated exercises changed!"
\ No newline at end of file
+echo "✅ No deprecated exercises changed!"

From ae1d4b48fff26881eaab99a3ae0987e9769544ae Mon Sep 17 00:00:00 2001
From: Jagdish Prajapati <jagadishdrp@gmail.com>
Date: Mon, 29 Sep 2025 13:36:07 +0530
Subject: [PATCH 5/5] Remove `install jq` step from the workflow

---
 .github/workflows/check-deprecated-exercises.yml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/.github/workflows/check-deprecated-exercises.yml b/.github/workflows/check-deprecated-exercises.yml
index 95821cad8..9e39d6af7 100644
--- a/.github/workflows/check-deprecated-exercises.yml
+++ b/.github/workflows/check-deprecated-exercises.yml
@@ -11,7 +11,5 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
         with:
           fetch-depth: 0
-      - name: Install jq
-        run: sudo apt-get update && sudo apt-get install -y jq
       - name: Test deprecated exercises using test-deprecated-exercises
         run: bin/test-deprecated-exercises