1 files changed, 112 insertions, 0 deletions
diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
new file mode 100644
index 000000000..a626162ff
--- /dev/null
+++ b/meta/classes/sanity.bbclass
@@ -0,0 +1,112 @@
+#
+# Sanity check the users setup for common misconfigurations
+#
+
+def raise_sanity_error(msg):
+	import bb
+	bb.fatal(""" Openembedded's config sanity checker detected a potential misconfiguration.
+	Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
+	Following is the list of potential problems / advisories:
+	
+	%s""" % msg)
+
+def check_conf_exists(fn, data):
+	import bb, os
+
+	bbpath = []
+	fn = bb.data.expand(fn, data)
+	vbbpath = bb.data.getVar("BBPATH", data)
+	if vbbpath:
+		bbpath += vbbpath.split(":")
+	for p in bbpath:
+		currname = os.path.join(bb.data.expand(p, data), fn)
+		if os.access(currname, os.R_OK):
+			return True
+	return False
+
+def check_app_exists(app, d):
+	from bb import which, data
+
+	app = data.expand(app, d)
+	path = data.getVar('PATH', d)
+	return len(which(path, app)) != 0
+
+
+def check_sanity(e):
+	from bb import note, error, data, __version__
+	from bb.event import Handled, NotHandled, getName
+	try:
+		from distutils.version import LooseVersion
+	except ImportError:
+		def LooseVersion(v): print "WARNING: sanity.bbclass can't compare versions without python-distutils"; return 1
+	import os
+
+	# Check the bitbake version meets minimum requirements
+	minversion = data.getVar('BB_MIN_VERSION', e.data , True)
+	if not minversion:
+		# Hack: BB_MIN_VERSION hasn't been parsed yet so return 
+		# and wait for the next call
+		print "Foo %s" % minversion
+		return
+
+	if (LooseVersion(__version__) < LooseVersion(minversion)):
+		raise_sanity_error('Bitbake version %s is required and version %s was found' % (minversion, __version__))
+
+	# Check TARGET_ARCH is set
+	if data.getVar('TARGET_ARCH', e.data, True) == 'INVALID':
+		raise_sanity_error('Please set TARGET_ARCH directly, or choose a MACHINE or DISTRO that does so.')
+	
+	# Check TARGET_OS is set
+	if data.getVar('TARGET_OS', e.data, True) == 'INVALID':
+		raise_sanity_error('Please set TARGET_OS directly, or choose a MACHINE or DISTRO that does so.')
+
+	# Check user doesn't have ASSUME_PROVIDED = instead of += in local.conf
+	if "diffstat-native" not in data.getVar('ASSUME_PROVIDED', e.data, True).split():
+		raise_sanity_error('Please use ASSUME_PROVIDED +=, not ASSUME_PROVIDED = in your local.conf')
+	
+	# Check the MACHINE is valid
+	if not check_conf_exists("conf/machine/${MACHINE}.conf", e.data):
+		raise_sanity_error('Please set a valid MACHINE in your local.conf')
+	
+	# Check the distro is valid
+	if not check_conf_exists("conf/distro/${DISTRO}.conf", e.data):
+		raise_sanity_error('Please set a valid DISTRO in your local.conf')
+
+	if not check_app_exists("${MAKE}", e.data):
+		raise_sanity_error('GNU make missing. Please install GNU make')
+
+	if not check_app_exists('${BUILD_PREFIX}gcc', e.data):
+		raise_sanity_error('C Host-Compiler is missing, please install one' )
+
+	if not check_app_exists('${BUILD_PREFIX}g++', e.data):
+		raise_sanity_error('C++ Host-Compiler is missing, please install one' )
+
+	if not check_app_exists('patch', e.data):
+		raise_sanity_error('Please install the patch utility, preferable GNU patch.')
+
+	if not check_app_exists('diffstat', e.data):
+		raise_sanity_error('Please install the diffstat utility')
+
+	if not check_app_exists('texi2html', e.data):
+		raise_sanity_error('Please install the texi2html binary')
+
+	if not check_app_exists('cvs', e.data):
+		raise_sanity_error('Please install the cvs utility')
+
+	if not check_app_exists('svn', e.data):
+		raise_sanity_error('Please install the svn utility')
+
+	oes_bb_conf = data.getVar( 'OES_BITBAKE_CONF', e.data, True )
+	if not oes_bb_conf:
+		raise_sanity_error('You do not include OpenEmbeddeds version of conf/bitbake.conf')
+
+addhandler check_sanity_eventhandler
+python check_sanity_eventhandler() {
+    from bb import note, error, data, __version__
+    from bb.event import getName
+
+    if getName(e) == "BuildStarted":
+        check_sanity(e)
+
+    return NotHandled
+}