From 4873e71dd032f3f1fc00cb98f9d17ea9d3b1b390 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 21 Dec 2006 00:32:10 +0000
Subject: When a removal phase fails, tell the user where the ebuild is and
 advise them that the ebuild can be removed in order to skip the removal
 phases.

svn path=/main/trunk/; revision=5340
---
 bin/emerge     | 21 +++++++++++++++++++++
 pym/portage.py | 14 ++++++++------
 2 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/bin/emerge b/bin/emerge
index 744db7b9e..8d310da48 100755
--- a/bin/emerge
+++ b/bin/emerge
@@ -3230,11 +3230,32 @@ def unmerge(settings, myopts, vartree, unmerge_action, unmerge_files,
 				vartree=vartree, ldpath_mtimes=ldpath_mtimes)
 			if retval != os.EX_OK:
 				emergelog(xterm_titles, " !!! unmerge FAILURE: "+y)
+				ebuild = vartree.dbapi.findname(y)
+				show_unmerge_failure_message(y, ebuild, retval)
+				sys.exit(retval)
 			else:
 				clean_world(vartree.dbapi, y)
 				emergelog(xterm_titles, " >>> unmerge success: "+y)
 	return 1
 
+def show_unmerge_failure_message(pkg, ebuild, retval):
+
+	from formatter import AbstractFormatter, DumbWriter
+	f = AbstractFormatter(DumbWriter(maxcol=72))
+
+	msg = []
+	msg.append("A removal phase of the '%s' package " % pkg)
+	msg.append("has failed with exit value %s.  " % retval)
+	msg.append("The problem occurred while executing ")
+	msg.append("the ebuild located at '%s'.  " % ebuild)
+	msg.append("If necessary, manually remove the ebuild " )
+	msg.append("in order to skip the execution of removal phases.")
+
+	print
+	for x in msg:
+		f.add_flowing_data(x)
+	f.end_paragraph(1)
+
 def chk_updated_info_files(root, infodirs, prev_mtimes, retval):
 
 	print
diff --git a/pym/portage.py b/pym/portage.py
index 3de43de21..40cb23246 100644
--- a/pym/portage.py
+++ b/pym/portage.py
@@ -3581,11 +3581,12 @@ def unmerge(cat, pkg, myroot, mysettings, mytrimworld=1, vartree=None, ldpath_mt
 	try:
 		mylink.lockdb()
 		if mylink.exists():
-			mylink.unmerge(trimworld=mytrimworld, cleanup=1,
+			retval = mylink.unmerge(trimworld=mytrimworld, cleanup=1,
 				ldpath_mtimes=ldpath_mtimes)
-			mylink.delete()
-			return 0
-		return 1
+			if retval == os.EX_OK:
+				mylink.delete()
+			return retval
+		return os.EX_OK
 	finally:
 		mylink.unlockdb()
 
@@ -6380,7 +6381,7 @@ class dblink:
 				# XXX: Decide how to handle failures here.
 				if retval != os.EX_OK:
 					writemsg("!!! FAILED prerm: %s\n" % retval, noiselevel=-1)
-					sys.exit(123)
+					return retval
 
 			self._unmerge_pkgfiles(pkgfiles)
 
@@ -6395,7 +6396,7 @@ class dblink:
 				# XXX: Decide how to handle failures here.
 				if retval != os.EX_OK:
 					writemsg("!!! FAILED postrm: %s\n" % retval, noiselevel=-1)
-					sys.exit(123)
+					return retval
 				doebuild(myebuildpath, "cleanrm", self.myroot, self.settings,
 					tree="vartree", mydbapi=self.vartree.dbapi,
 					vartree=self.vartree)
@@ -6418,6 +6419,7 @@ class dblink:
 					portage_locks.unlockdir(catdir_lock)
 		env_update(target_root=self.myroot, prev_mtimes=ldpath_mtimes,
 			contents=contents)
+		return os.EX_OK
 
 	def _unmerge_pkgfiles(self, pkgfiles):
 
-- 
cgit v1.2.3-1-g7c22