grub-efi.bbclass: split out configuration portion

This part is useful on its own, whereas the whole class together is
specific for image-live.

Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 119 insertions, 0 deletions

diff --git a/meta/classes/grub-efi-cfg.bbclass b/meta/classes/grub-efi-cfg.bbclass
new file mode 100644
index 0000000000..730323c72e
--- /dev/null
+++ b/meta/classes/grub-efi-cfg.bbclass
@@ -0,0 +1,119 @@
+# grub-efi.bbclass
+# Copyright (c) 2011, Intel Corporation.
+# All rights reserved.
+#
+# Released under the MIT license (see packages/COPYING)
+
+# Provide grub-efi specific functions for building bootable images.
+
+# External variables
+# ${INITRD} - indicates a list of filesystem images to concatenate and use as an initrd (optional)
+# ${ROOTFS} - indicates a filesystem image to include as the root filesystem (optional)
+# ${GRUB_GFXSERIAL} - set this to 1 to have graphics and serial in the boot menu
+# ${LABELS} - a list of targets for the automatic config
+# ${APPEND} - an override list of append strings for each label
+# ${GRUB_OPTS} - additional options to add to the config, ';' delimited # (optional)
+# ${GRUB_TIMEOUT} - timeout before executing the deault label (optional)
+# ${GRUB_ROOT} - grub's root device.
+
+GRUB_SERIAL ?= "console=ttyS0,115200"
+GRUB_CFG_VM = "${S}/grub_vm.cfg"
+GRUB_CFG_LIVE = "${S}/grub_live.cfg"
+GRUB_TIMEOUT ?= "10"
+#FIXME: build this from the machine config
+GRUB_OPTS ?= "serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1"
+
+EFIDIR = "/EFI/BOOT"
+GRUB_ROOT ?= "${ROOT}"
+APPEND ?= ""
+
+# Need UUID utility code.
+inherit fs-uuid
+
+python build_efi_cfg() {
+    import sys
+
+    workdir = d.getVar('WORKDIR')
+    if not workdir:
+        bb.error("WORKDIR not defined, unable to package")
+        return
+
+    gfxserial = d.getVar('GRUB_GFXSERIAL') or ""
+
+    labels = d.getVar('LABELS')
+    if not labels:
+        bb.debug(1, "LABELS not defined, nothing to do")
+        return
+
+    if labels == []:
+        bb.debug(1, "No labels, nothing to do")
+        return
+
+    cfile = d.getVar('GRUB_CFG')
+    if not cfile:
+        bb.fatal('Unable to read GRUB_CFG')
+
+    try:
+         cfgfile = open(cfile, 'w')
+    except OSError:
+        bb.fatal('Unable to open %s' % cfile)
+
+    cfgfile.write('# Automatically created by OE\n')
+
+    opts = d.getVar('GRUB_OPTS')
+    if opts:
+        for opt in opts.split(';'):
+            cfgfile.write('%s\n' % opt)
+
+    cfgfile.write('default=%s\n' % (labels.split()[0]))
+
+    timeout = d.getVar('GRUB_TIMEOUT')
+    if timeout:
+        cfgfile.write('timeout=%s\n' % timeout)
+    else:
+        cfgfile.write('timeout=50\n')
+
+    root = d.getVar('GRUB_ROOT')
+    if not root:
+        bb.fatal('GRUB_ROOT not defined')
+
+    if gfxserial == "1":
+        btypes = [ [ " graphics console", "" ],
+            [ " serial console", d.getVar('GRUB_SERIAL') or "" ] ]
+    else:
+        btypes = [ [ "", "" ] ]
+
+    for label in labels.split():
+        localdata = d.createCopy()
+
+        overrides = localdata.getVar('OVERRIDES')
+        if not overrides:
+            bb.fatal('OVERRIDES not defined')
+
+        for btype in btypes:
+            localdata.setVar('OVERRIDES', label + ':' + overrides)
+
+            cfgfile.write('\nmenuentry \'%s%s\'{\n' % (label, btype[0]))
+            lb = label
+            if label == "install":
+                lb = "install-efi"
+            cfgfile.write('linux /vmlinuz LABEL=%s' % (lb))
+
+            cfgfile.write(' %s' % replace_rootfs_uuid(d, root))
+
+            append = localdata.getVar('APPEND')
+            initrd = localdata.getVar('INITRD')
+
+            if append:
+                append = replace_rootfs_uuid(d, append)
+                cfgfile.write(' %s' % (append))
+
+            cfgfile.write(' %s' % btype[1])
+            cfgfile.write('\n')
+
+            if initrd:
+                cfgfile.write('initrd /initrd')
+            cfgfile.write('\n}\n')
+
+    cfgfile.close()
+}