Add PR body generation script

Script to generate detailed PR descriptions with kselftest results.

Signed-off-by: Shreeya Patel <spatel@ciq.com>

Author: shreeya-patel98

.github/scripts/create-pr-body.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+
+# Script to create PR body
+# Arguments: build_time total_time passed failed run_id comparison_section repo commit_message_file
+
+set -euo pipefail
+
+# Check number of arguments
+if [ $# -lt 7 ] || [ $# -gt 8 ]; then
+  echo "Error: Expected 7 or 8 arguments, got $#" >&2
+  echo "Usage: $0 <build_time> <total_time> <passed> <failed> <run_id> <comparison_section> <repo> [commit_message_file]" >&2
+  exit 1
+fi
+
+BUILD_TIME="$1"
+TOTAL_TIME="$2"
+PASSED="$3"
+FAILED="$4"
+RUN_ID="$5"
+COMPARISON_SECTION="$6"
+REPO="$7"
+COMMIT_MESSAGE_FILE="${8:-/tmp/commit_message.txt}"
+
+# Validate required arguments are not empty
+if [ -z "$BUILD_TIME" ] || [ -z "$TOTAL_TIME" ] || [ -z "$PASSED" ] || [ -z "$FAILED" ] || [ -z "$RUN_ID" ] || [ -z "$COMPARISON_SECTION" ] || [ -z "$REPO" ]; then
+  echo "Error: One or more required arguments are empty" >&2
+  echo "Usage: $0 <build_time> <total_time> <passed> <failed> <run_id> <comparison_section> <repo> [commit_message_file]" >&2
+  exit 1
+fi
+
+# Check if commit message file exists
+if [ ! -f "$COMMIT_MESSAGE_FILE" ]; then
+  echo "Error: Commit message file not found: $COMMIT_MESSAGE_FILE" >&2
+  exit 1
+fi
+
+# Convert seconds to minutes for better readability
+convert_time() {
+  local seconds="${1%s}"  # Remove 's' suffix if present
+  local minutes=$((seconds / 60))
+  local remaining_seconds=$((seconds % 60))
+  echo "${minutes}m ${remaining_seconds}s"
+}
+
+BUILD_TIME_READABLE=$(convert_time "$BUILD_TIME")
+TOTAL_TIME_READABLE=$(convert_time "$TOTAL_TIME")
+
+cat << EOF
+## Summary
+This PR has been automatically created after successful completion of all CI stages.
+
+## Commit Message(s)
+\`\`\`
+EOF
+
+cat "$COMMIT_MESSAGE_FILE"
+echo ""
+
+cat << EOF
+\`\`\`
+
+## Test Results
+
+### ✅ Build Stage
+- Status: Passed
+- Build Time: ${BUILD_TIME_READABLE}
+- Total Time: ${TOTAL_TIME_READABLE}
+- [View build logs](https://github.com/${REPO}/actions/runs/${RUN_ID})
+
+### ✅ Boot Verification
+- Status: Passed
+- [View boot logs](https://github.com/${REPO}/actions/runs/${RUN_ID})
+
+### ✅ Kernel Selftests
+- **Passed:** ${PASSED}
+- **Failed:** ${FAILED}
+- [View kselftest logs](https://github.com/${REPO}/actions/runs/${RUN_ID})
+
+${COMPARISON_SECTION}
+
+---
+🤖 This PR was automatically generated by GitHub Actions
+Run ID: ${RUN_ID}
+EOF