systemd-boot.bbclass: break out configuration creation

This class is useful on its own and can be used to create configuration
recipes.

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

1 files changed, 71 insertions, 0 deletions

diff --git a/meta/classes/systemd-boot-cfg.bbclass b/meta/classes/systemd-boot-cfg.bbclass
new file mode 100644
index 0000000000..46eeae126a
--- /dev/null
+++ b/meta/classes/systemd-boot-cfg.bbclass
@@ -0,0 +1,71 @@
+SYSTEMD_BOOT_CFG ?= "${S}/loader.conf"
+SYSTEMD_BOOT_ENTRIES ?= ""
+SYSTEMD_BOOT_TIMEOUT ?= "10"
+
+# Need UUID utility code.
+inherit fs-uuid
+
+python build_efi_cfg() {
+    s = d.getVar("S")
+    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('SYSTEMD_BOOT_CFG')
+    cdir = os.path.dirname(cfile)
+    if not os.path.exists(cdir):
+        os.makedirs(cdir)
+    try:
+         cfgfile = open(cfile, 'w')
+    except OSError:
+        bb.fatal('Unable to open %s' % cfile)
+
+    cfgfile.write('# Automatically created by OE\n')
+    cfgfile.write('default %s\n' % (labels.split()[0]))
+    timeout = d.getVar('SYSTEMD_BOOT_TIMEOUT')
+    if timeout:
+        cfgfile.write('timeout %s\n' % timeout)
+    else:
+        cfgfile.write('timeout 10\n')
+    cfgfile.close()
+
+    for label in labels.split():
+        localdata = d.createCopy()
+
+        overrides = localdata.getVar('OVERRIDES')
+        if not overrides:
+            bb.fatal('OVERRIDES not defined')
+
+        entryfile = "%s/%s.conf" % (s, label)
+        if not os.path.exists(s):
+            os.makedirs(s)
+        d.appendVar("SYSTEMD_BOOT_ENTRIES", " " + entryfile)
+        try:
+            entrycfg = open(entryfile, "w")
+        except OSError:
+            bb.fatal('Unable to open %s' % entryfile)
+        localdata.setVar('OVERRIDES', label + ':' + overrides)
+
+        entrycfg.write('title %s\n' % label)
+        entrycfg.write('linux /vmlinuz\n')
+
+        append = localdata.getVar('APPEND')
+        initrd = localdata.getVar('INITRD')
+
+        if initrd:
+            entrycfg.write('initrd /initrd\n')
+        lb = label
+        if label == "install":
+            lb = "install-efi"
+        entrycfg.write('options LABEL=%s ' % lb)
+        if append:
+            append = replace_rootfs_uuid(d, append)
+            entrycfg.write('%s' % append)
+        entrycfg.write('\n')
+        entrycfg.close()
+}