[oe-commits] [meta-openembedded] 06/08: classes/dracut.bbclass: add new bbclass

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khem pushed a commit to branch master-next
in repository meta-openembedded.

commit 0c6942b311d1b711f1e5ed862b357031838980dc
Author: Böszörményi Zoltán <zboszor at pr.hu>
AuthorDate: Tue Feb 26 10:55:00 2019 +0100

    classes/dracut.bbclass: add new bbclass
    
    dracut.bbclass can be used from kernel or other recipes, like
    custom dracut modules or plymouth boot splash themes.
    
    Signed-off-by: Böszörményi Zoltán <zboszor at pr.hu>
    Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 meta-initramfs/classes/dracut.bbclass | 82 +++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)

diff --git a/meta-initramfs/classes/dracut.bbclass b/meta-initramfs/classes/dracut.bbclass
new file mode 100644
index 0000000..58c4493
--- /dev/null
+++ b/meta-initramfs/classes/dracut.bbclass
@@ -0,0 +1,82 @@
+DRACUT_PN ??= "${PN}"
+DRACUT_OPTS ??= "--early-microcode --lzma"
+
+python __anonymous () {
+    pkg = d.getVar("DRACUT_PN", True)
+    if pkg != 'dracut':
+        d.appendVar("RDEPENDS_%s" % pkg, " dracut ")
+    if not pkg.startswith('kernel'):
+        d.appendVarFlag("do_configure", "depends", "virtual/kernel:do_shared_workdir")
+        d.appendVarFlag("do_compile", "depends", "virtual/kernel:do_compile_kernelmodules")
+}
+
+export BUILD_TIME_KERNEL_VERSION = "${@oe.utils.read_file('${STAGING_KERNEL_BUILDDIR}/kernel-abiversion')}"
+
+dracut_postinst () {
+	MY_KERNEL_VERSION=$(readlink $D/boot/bzimage | sed 's,^.*bzImage-,,')
+	if [[ -z "$MY_KERNEL_VERSION" ]]; then
+		MY_KERNEL_VERSION="${KERNEL_VERSION}"
+	fi
+	if [[ -z "$MY_KERNEL_VERSION" ]]; then
+		MY_KERNEL_VERSION="${BUILD_TIME_KERNEL_VERSION}"
+	fi
+	if [[ -z "$MY_KERNEL_VERSION" ]]; then
+		exit 1
+	fi
+
+	if [ -n "$D" ]; then
+		#DEBUGOPTS="--debug --keep"
+		DEBUGOPTS="--keep"
+
+		# We have to unset "prefix" as dracut uses it to move files around.
+		# Yocto has it set as part of the build environment.
+		$INTERCEPT_DIR/postinst_intercept execute_dracut ${PKG} mlprefix=${MLPREFIX} \
+			prefix= \
+			MY_KERNEL_VERSION=$MY_KERNEL_VERSION \
+			DEPMODOPT="\"-b $D\"" \
+			dracutsysrootdir=$D \
+			DEBUGOPTS="\"$DEBUGOPTS\"" \
+			DRACUT_OPTS="\"${DRACUT_OPTS}\"" \
+			EXTRAOPTS="\"-k $D/lib/modules/$MY_KERNEL_VERSION\"" \
+			systemdutildir=${systemd_unitdir} \
+			systemdsystemunitdir=${systemd_system_unitdir} \
+			systemdsystemconfdir=/etc/systemd/system \
+			udevdir=/usr/lib/udev \
+			DRACUT_TMPDIR=${WORKDIR}/dracut-tmpdir \
+			DRACUT_ARCH="${TUNE_ARCH}" \
+			DRACUT_TESTBIN=/bin/bash.bash \
+			DRACUT_COMPRESS_LZMA=$NATIVE_ROOT/usr/bin/lzma \
+			DRACUT_LDD="\"PATH='$PATH' ${STAGING_BINDIR_CROSS}/ldd --root $D\"" \
+			DRACUT_LDCONFIG=$NATIVE_ROOT/usr/bin/ldconfig \
+			DRACUT_INSTALL="\"$NATIVE_ROOT/usr/lib/dracut/dracut-install\"" \
+			DRACUT_INSTALL_PATH="/usr/sbin:/usr/bin:/sbin:/bin"
+	else
+		execute_dracut $MY_KERNEL_VERSION ${DRACUT_OPTS}
+	fi
+}
+
+dracut_populate_packages[vardeps] += "dracut_postinst"
+
+python dracut_populate_packages() {
+    localdata = d.createCopy()
+
+    pkg = d.getVar('DRACUT_PN', True)
+
+    postinst = d.getVar('pkg_postinst_%s' % pkg, True)
+    if not postinst:
+        postinst = '#!/bin/sh\n'
+    postinst += localdata.getVar('dracut_postinst', True)
+    d.setVar('pkg_postinst_%s' % pkg, postinst)
+}
+
+PACKAGESPLITFUNCS_prepend = "dracut_populate_packages "
+
+DRACUT_DEPENDS = " \
+			binutils-cross-${TUNE_ARCH} gcc-cross-${TUNE_ARCH} \
+			ldconfig-native coreutils-native findutils-native \
+			cpio-native util-linux-native kmod-native xz-native \
+			dracut-native pkgconfig-native cross-compiler-ldd \
+			${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'systemd', '', d)} \
+		"
+DEPENDS_append_class-target = " ${DRACUT_DEPENDS}"
+PACKAGE_WRITE_DEPS_append = " ${DRACUT_DEPENDS}"

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