Add generate_tarball.sh

Author: bmastbergen

SOURCES/generate_tarball.sh

@@ -0,0 +1,75 @@
+#!/bin/sh
+
+# This script should be run from the kernel-src-tree directory
+# It reads the tarfile name from the spec file and creates the tarball
+
+# Determine dist-git directory paths
+# Assuming this script is in dist-git/SOURCES/
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+DISTGIT_ROOT="$(dirname "$SCRIPT_DIR")"
+SOURCE_DIR="$DISTGIT_ROOT/SOURCES"
+SPEC_FILE="$DISTGIT_ROOT/SPECS/kernel.spec"
+
+# Extract version information from spec file
+TARFILE_RELEASE=$(grep '^%define tarfile_release' "$SPEC_FILE" | awk '{print $3}')
+SPEC_VERSION=$(grep '^%define specversion' "$SPEC_FILE" | awk '{print $3}')
+
+if [ -z "$TARFILE_RELEASE" ]; then
+    echo "Error: Could not extract tarfile_release from $SPEC_FILE"
+    exit 1
+fi
+
+if [ -z "$SPEC_VERSION" ]; then
+    echo "Error: Could not extract specversion from $SPEC_FILE"
+    exit 1
+fi
+
+# Get current git tag and extract version
+CURRENT_TAG=$(git describe --tags --abbrev=0 2>/dev/null)
+if [ -z "$CURRENT_TAG" ]; then
+    echo "Error: Could not determine current git tag"
+    exit 1
+fi
+
+TAG_VERSION=${CURRENT_TAG/ciq_kernel-/}
+GIT_VERSION=${TAG_VERSION%%-*}
+
+# Verify that git version matches spec version
+if [ "$GIT_VERSION" != "$SPEC_VERSION" ]; then
+    echo "Error: Version mismatch!"
+    echo "  Git version:  $GIT_VERSION (from tag: $CURRENT_TAG)"
+    echo "  Spec version: $SPEC_VERSION"
+    echo ""
+    echo "Please either:"
+    echo "  1. Run update_spec.sh to update the spec to match current git checkout, or"
+    echo "  2. Check out the correct git tag that matches the spec version"
+    exit 1
+fi
+
+TARBALL="$SOURCE_DIR/linux-$TARFILE_RELEASE.tar.xz"
+XZ_THREADS="--threads 4"
+ARCH=$(arch)
+XZ_OPTIONS=""
+
+if [ "$ARCH" != "x86_64" ]
+then
+        XZ_OPTIONS="-M 3G"
+fi
+
+# convert from shortened git sha to standard 40 digit git sha
+_GITID="$(git rev-parse HEAD)"
+
+if [ -f "$TARBALL" ]; then
+	TARID=$(xzcat -qq "$TARBALL" | git get-tar-commit-id 2>/dev/null)
+	if [ "$_GITID" = "$TARID" ]; then
+		echo "$(basename "$TARBALL") unchanged..."
+		exit 0
+	fi
+	rm -f "$TARBALL"
+fi
+
+echo "Creating $(basename "$TARBALL")..."
+trap 'rm -vf "$TARBALL"' INT
+git archive --prefix="linux-$TARFILE_RELEASE"/ --format=tar "$_GITID" | xz $XZ_OPTIONS $XZ_THREADS > "$TARBALL";
+
+echo "Tarball created: $TARBALL"