Fix compliance issues for RPM and DEB packages

As an Apache incubating project, convenience binaries
must include LICENSE, NOTICE, and DISCLAIMER files.
This commit adds these mandatory compliance files into
the spec and rules definitions to ensure they are properly
distributed with the binary RPM and DEB packages.

Additionally, this commit:
- Automates the cp of the .spec file into the ~/rpmbuild
  tree to prevent build failures for new users.
- Dynamically locates debian metadata from OS-specific
  directories and copies to project root for dpkg-buildpackage.
- Generates debian/copyright file by combining LICENSE
  and NOTICE to meet Debian policy requirements.

Author: tuhaihe

devops/build/packaging/deb/build-deb.sh

@@ -139,10 +139,29 @@ export CBDB_PKG_VERSION=${CBDB_FULL_VERSION}-${BUILD_NUMBER}-${OS_DISTRO}
 # Check if required commands are available
 check_commands
 
-# Define the control file path
-CONTROL_FILE=debian/control
+# Find project root (assumed to be four levels up from scripts directory: devops/build/packaging/deb/)
+PROJECT_ROOT="$(cd "$(dirname "$0")/../../../../" && pwd)"
+
+# Define where the debian metadata is located
+DEBIAN_SRC_DIR="$(dirname "$0")/${OS_DISTRO}"
+
+# Prepare the debian directory at the project root (required by dpkg-buildpackage)
+if [ -d "$DEBIAN_SRC_DIR" ]; then
+    echo "Preparing debian directory from $DEBIAN_SRC_DIR..."
+    mkdir -p "$PROJECT_ROOT/debian"
+    # Use /. to copy directory contents if target exists instead of nested directories
+    cp -rf "$DEBIAN_SRC_DIR"/. "$PROJECT_ROOT/debian/"
+else
+    if [ ! -d "$PROJECT_ROOT/debian" ]; then
+        echo "Error: Debian metadata not found at $DEBIAN_SRC_DIR and no debian/ directory exists at root."
+        exit 1
+    fi
+fi
+
+# Define the control file path (at the project root)
+CONTROL_FILE="$PROJECT_ROOT/debian/control"
 
-# Check if the spec file exists
+# Check if the control file exists
 if [ ! -f "$CONTROL_FILE" ]; then
   echo "Error: Control file not found at $CONTROL_FILE."
   exit 1
@@ -160,10 +179,15 @@ if [ "${DRY_RUN:-false}" = true ]; then
   exit 0
 fi
 
-# Run debbuild with the provided options
-echo "Building DEB with Version $CBDB_FULL_VERSION ..."
+# Run debbuild from the project root
+echo "Building DEB with Version $CBDB_FULL_VERSION in $PROJECT_ROOT ..."
 
-print_changelog > debian/changelog
+print_changelog > "$PROJECT_ROOT/debian/changelog"
+
+# Only cd if we are not already at the project root
+if [ "$(pwd)" != "$PROJECT_ROOT" ]; then
+    cd "$PROJECT_ROOT"
+fi
 
 if ! eval "$DEBBUILD_CMD"; then
   echo "Error: deb build failed."

devops/build/packaging/deb/ubuntu22.04/rules

@@ -19,7 +19,22 @@ include /usr/share/dpkg/default.mk
 	dh $@ --parallel
 
 gpinstall:
-	make install DESTDIR=${DEBIAN_DESTINATION} prefix=
+	# If the build staging directory is empty, copy from the pre-installed location.
+	# In CI, BUILD_DESTINATION already points here so it will be populated.
+	# For local manual packaging, copy from the installed Cloudberry path.
+	@mkdir -p ${DEBIAN_DESTINATION}
+	@if [ -z "$$(ls -A ${DEBIAN_DESTINATION} 2>/dev/null)" ]; then \
+		echo "Copying pre-built binaries from ${CBDB_BIN_PATH} to ${DEBIAN_DESTINATION}..."; \
+		cp -a ${CBDB_BIN_PATH}/* ${DEBIAN_DESTINATION}/; \
+	else \
+		echo "Build staging directory already populated, skipping copy."; \
+	fi
+	# Copy Apache compliance files into the build staging directory
+	cp -a LICENSE NOTICE DISCLAIMER ${DEBIAN_DESTINATION}/
+	cp -a licenses ${DEBIAN_DESTINATION}/
+	# Create debian/copyright for Debian policy compliance
+	mkdir -p $(shell pwd)/debian
+	cat LICENSE NOTICE > $(shell pwd)/debian/copyright
 
 override_dh_auto_install: gpinstall
 	# the staging directory for creating a debian is NOT the right GPHOME.

devops/build/packaging/rpm/apache-cloudberry-db-incubating.spec

@@ -152,15 +152,19 @@ mkdir -p %{buildroot}%{cloudberry_install_dir}-%{version}
 
 cp -R %{cloudberry_install_dir}/* %{buildroot}%{cloudberry_install_dir}-%{version}
 
+# Copy Apache mandatory compliance files from the SOURCES directory into the installation directory
+cp %{_sourcedir}/LICENSE %{buildroot}%{cloudberry_install_dir}-%{version}/
+cp %{_sourcedir}/NOTICE %{buildroot}%{cloudberry_install_dir}-%{version}/
+cp %{_sourcedir}/DISCLAIMER %{buildroot}%{cloudberry_install_dir}-%{version}/
+cp -R %{_sourcedir}/licenses %{buildroot}%{cloudberry_install_dir}-%{version}/
+
 # Create the symbolic link
 ln -sfn %{cloudberry_install_dir}-%{version} %{buildroot}%{cloudberry_install_dir}
 
 %files
 %{prefix}-%{version}
 %{prefix}
 
-%license %{cloudberry_install_dir}-%{version}/LICENSE
-
 %debug_package
 
 %post

devops/build/packaging/rpm/build-rpm.sh

@@ -118,10 +118,46 @@ fi
 # Check if required commands are available
 check_commands
 
-# Define the spec file path
+# Define the source spec file path (assuming it is in the same directory as the script)
+SOURCE_SPEC_FILE="$(dirname "$0")/apache-cloudberry-db-incubating.spec"
+
+# Ensure rpmbuild SPECS and SOURCES directories exist
+mkdir -p ~/rpmbuild/SPECS
+mkdir -p ~/rpmbuild/SOURCES
+
+# Find project root (assumed to be four levels up from scripts directory: devops/build/packaging/rpm/)
+PROJECT_ROOT="$(cd "$(dirname "$0")/../../../../" && pwd)"
+
+# Define the target spec file path
 SPEC_FILE=~/rpmbuild/SPECS/apache-cloudberry-db-incubating.spec
 
-# Check if the spec file exists
+# Copy the spec file to rpmbuild/SPECS if the source exists and is different
+if [ -f "$SOURCE_SPEC_FILE" ]; then
+  # Avoid copying if SPEC_FILE is already a symlink/file pointing to SOURCE_SPEC_FILE (common in CI)
+  if [ ! "$SOURCE_SPEC_FILE" -ef "$SPEC_FILE" ]; then
+    cp -f "$SOURCE_SPEC_FILE" "$SPEC_FILE"
+  fi
+else
+  echo "Warning: Source spec file not found at $SOURCE_SPEC_FILE, assuming it is already in ~/rpmbuild/SPECS/"
+fi
+
+# Copy Apache mandatory compliance files to rpmbuild/SOURCES
+echo "Copying compliance files from $PROJECT_ROOT to ~/rpmbuild/SOURCES..."
+for f in LICENSE NOTICE DISCLAIMER; do
+    if [ -f "$PROJECT_ROOT/$f" ]; then
+        cp -af "$PROJECT_ROOT/$f" ~/rpmbuild/SOURCES/
+    else
+        echo "Warning: $f not found in $PROJECT_ROOT"
+    fi
+done
+
+if [ -d "$PROJECT_ROOT/licenses" ]; then
+    cp -af "$PROJECT_ROOT/licenses" ~/rpmbuild/SOURCES/
+else
+    echo "Warning: licenses directory not found in $PROJECT_ROOT"
+fi
+
+# Check if the spec file exists at the target location before proceeding
 if [ ! -f "$SPEC_FILE" ]; then
   echo "Error: Spec file not found at $SPEC_FILE."
   exit 1