Cleanup: move scripts to subdirectory

[deliverable/lttng-modules.git] / scripts / abi-debian-version.sh

diff --git a/scripts/abi-debian-version.sh b/scripts/abi-debian-version.sh
new file mode 100755 (executable)
index 0000000..ee8dbd8
--- /dev/null
+++ b/scripts/abi-debian-version.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+# SPDX-License-Identifier: (GPL-2.0 OR LGPL-2.1)
+
+# First argument is the path to the kernel headers.
+KPATH="$1"
+
+if [ ! -f "${KPATH}/include/generated/package.h" ]; then
+       echo 0
+       exit 0
+fi
+
+# Debian snippet courtesy of Ben Hutchings
+
+# Assuming KPATH is the target kernel headers directory
+DEB_PACKAGE_VERSION=$(sed -rn 's/^#define LINUX_PACKAGE_ID " Debian (.*)"/\1/p' "${KPATH}/include/generated/package.h")
+
+# Ignore backports part
+DEB_PACKAGE_VERSION=$(echo "${DEB_PACKAGE_VERSION}" | sed -r 's/~(bpo|deb).*//')
+
+# ckt (Canonical Kernel Team) kernels were used for a while during the jessie
+# cycle, their versionning is a bit different. They track the upstream vanilla
+# stable updates but they don't update the minor version number and instead add
+# an additionnal -cktX. They were all 3.16.7-cktX and after a while the version
+# switched back to upstream style at 3.16.36.
+
+# Get -ckt update number, if present
+KERNEL_CKT_UPDATE=$(echo "${DEB_PACKAGE_VERSION}" | sed -rn 's/^[0-9]+\.[0-9]+\.[0-9]+-ckt([0-9]+).*/\1/p')
+test -n "${KERNEL_CKT_UPDATE}" || KERNEL_CKT_UPDATE=0
+
+# Get package revision
+DEB_PACKAGE_REVISION=$(echo "${DEB_PACKAGE_VERSION}" | sed -r 's/.*-([^-]+)$/\1/')
+# Get non-sec update number
+DEB_PACKAGE_REVISION_BASE=$(echo "${DEB_PACKAGE_REVISION}" | sed -r 's/^([0-9]+).*/\1/')
+# Get security update number, if present
+DEB_PACKAGE_REVISION_SECURITY=$(echo "${DEB_PACKAGE_REVISION}" | sed -rn 's/.*\+(squeeze|deb[0-9]+)+u([0-9]+)$/\2/p')
+test -n "${DEB_PACKAGE_REVISION_SECURITY}" || DEB_PACKAGE_REVISION_SECURITY=0
+# Combine all update numbers into one
+DEB_API_VERSION=$((KERNEL_CKT_UPDATE * 10000 + DEB_PACKAGE_REVISION_BASE * 100 + DEB_PACKAGE_REVISION_SECURITY))
+
+echo ${DEB_API_VERSION}