Print a warning message if a user requests a package from package.provided (since it won't be merged).

svn path=/main/trunk/; revision=5106

1 files changed, 22 insertions, 0 deletions

diff --git a/bin/emerge b/bin/emerge
index f20c5724b..b99d897da 100755
--- a/bin/emerge
+++ b/bin/emerge
@@ -756,6 +756,7 @@ class depgraph:
 		self.blocker_digraph = digraph()
 		self.blocker_parents = {}
 		self._altlist_cache = {}
+		self._pprovided_args = []
 
 	def create(self, mybigkey, myparent=None, addme=1, myuse=None,
 		priority=DepPriority(), rev_dep=False, arg=None):
@@ -1195,6 +1196,12 @@ class depgraph:
 			return 0
 		mymerge = mycheck[1]
 
+		if not mymerge and arg and \
+			portage.best_match_to_list(depstring, self.args_keys):
+			# A provided package has been specified on the command line.  The
+			# package will not be merged and a warning will be displayed.
+			self._pprovided_args.append(arg)
+
 		if myparent:
 			# The parent is added after it's own dep_check call so that it
 			# isn't allowed to satisfy a direct bootstrap dependency on itself
@@ -2160,6 +2167,21 @@ class depgraph:
 				print bold('*'+revision)
 				sys.stdout.write(text)
 
+		if self._pprovided_args:
+			msg = []
+			msg.append(bad("\nWARNING: "))
+			if len(self._pprovided_args) > 1:
+				msg.append("Requested packages will not be " + \
+					"merged because they are listed in\n")
+			else:
+				msg.append("A requested package will not be " + \
+					"merged because it is listed in\n")
+			msg.append("         package.provided:\n\n")
+			for arg in self._pprovided_args:
+				msg.append("             " + arg + "\n")
+			msg.append("\n")
+			sys.stderr.write("".join(msg))
+
 	def calc_changelog(self,ebuildpath,current,next):
 		current = '-'.join(portage.catpkgsplit(current)[1:])
 		if current.endswith('-r0'): current = current[:-3]