From 0e622a638fe059aafde079eb552ab8e433510d41 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 28 Jul 2010 08:14:34 -0700
Subject: [PATCH] Add a --package-moves[=n] option that can be used to control
 the "Performing Global Updates" routine. This option is enabled by default.

---
 man/emerge.1           |  4 ++++
 pym/_emerge/actions.py |  3 ++-
 pym/_emerge/help.py    |  6 ++++++
 pym/_emerge/main.py    | 23 +++++++++++++++++------
 4 files changed, 29 insertions(+), 7 deletions(-)

diff --git a/man/emerge.1 b/man/emerge.1
index fbf668d71..15d7fcac5 100644
--- a/man/emerge.1
+++ b/man/emerge.1
@@ -468,6 +468,10 @@ for later updating.
 Only merge (or pretend to merge) the dependencies of the packages
 specified, not the packages themselves.
 .TP
+.BR "\-\-package\-moves[=n]"
+Perform package moves when necessary. This option
+is enabled by default.
+.TP
 .BR "\-\-pretend " (\fB\-p\fR)
 Instead of actually performing the merge, simply display what *would*
 have been installed if \fB\-\-pretend\fR weren't used.  Using \fB\-\-pretend\fR
diff --git a/pym/_emerge/actions.py b/pym/_emerge/actions.py
index e014b16d4..16c329bbe 100644
--- a/pym/_emerge/actions.py
+++ b/pym/_emerge/actions.py
@@ -2289,7 +2289,8 @@ def action_sync(settings, trees, mtimedb, myopts, myaction):
 		# the only one that's been synced here.
 		action_metadata(settings, portdb, myopts, porttrees=[myportdir])
 
-	if _global_updates(trees, mtimedb["updates"]):
+	if myopts.get('--package-moves') != 'n' and \
+		_global_updates(trees, mtimedb["updates"]):
 		mtimedb.commit()
 		# Reload the whole config from scratch.
 		settings, trees, mtimedb = load_emerge_config(trees=trees)
diff --git a/pym/_emerge/help.py b/pym/_emerge/help.py
index fe616ca95..9834c5c54 100644
--- a/pym/_emerge/help.py
+++ b/pym/_emerge/help.py
@@ -515,6 +515,12 @@ def help(myopts, havecolor=1):
 		print("              Only merge (or pretend to merge) the dependencies of the")
 		print("              specified packages, not the packages themselves.")
 		print()
+		print("       " + green("--package-moves") + "[=%s]" % turquoise("n"))
+		desc = "Perform package moves when necessary. This option " + \
+			"is enabled by default."
+		for line in wrap(desc, desc_width):
+			print(desc_indent + line)
+		print()
 		print("       "+green("--pretend")+" ("+green("-p")+" short option)")
 		print("              Instead of actually performing the merge, simply display what")
 		print("              ebuilds and tbz2s *would* have been installed if --pretend")
diff --git a/pym/_emerge/main.py b/pym/_emerge/main.py
index e4449e805..5f0a7663a 100644
--- a/pym/_emerge/main.py
+++ b/pym/_emerge/main.py
@@ -398,6 +398,7 @@ def insert_optional_args(args):
 		'--getbinpkgonly'        : ('n',),
 		'--jobs'       : valid_integers,
 		'--keep-going'           : ('n',),
+		'--package-moves'        : ('n',),
 		'--rebuilt-binaries'     : ('n',),
 		'--root-deps'  : ('rdeps',),
 		'--select'               : ('n',),
@@ -638,6 +639,12 @@ def parse_opts(tmpcmdline, silent=False):
 			"choices"  : ("True", "n")
 		},
 
+		"--package-moves": {
+			"help"     : "perform package moves when necessary",
+			"type"     : "choice",
+			"choices"  : ("True", "n")
+		},
+
 		"--rebuilt-binaries": {
 			"help"     : "replace installed packages with binary " + \
 			             "packages that have been rebuilt",
@@ -791,6 +798,9 @@ def parse_opts(tmpcmdline, silent=False):
 	else:
 		myoptions.keep_going = None
 
+	if myoptions.package_moves in ("True",):
+		myoptions.package_moves = True
+
 	if myoptions.rebuilt_binaries in ("True",):
 		myoptions.rebuilt_binaries = True
 
@@ -1247,7 +1257,14 @@ def emerge_main():
 	if rval != os.EX_OK:
 		return rval
 
+	tmpcmdline = []
+	if "--ignore-default-opts" not in myopts:
+		tmpcmdline.extend(settings["EMERGE_DEFAULT_OPTS"].split())
+	tmpcmdline.extend(sys.argv[1:])
+	myaction, myopts, myfiles = parse_opts(tmpcmdline)
+
 	if myaction not in ('help', 'info', 'version') and \
+		myopts.get('--package-moves') != 'n' and \
 		_global_updates(trees, mtimedb["updates"]):
 		mtimedb.commit()
 		# Reload the whole config from scratch.
@@ -1258,12 +1275,6 @@ def emerge_main():
 	if xterm_titles:
 		xtermTitle("emerge")
 
-	tmpcmdline = []
-	if "--ignore-default-opts" not in myopts:
-		tmpcmdline.extend(settings["EMERGE_DEFAULT_OPTS"].split())
-	tmpcmdline.extend(sys.argv[1:])
-	myaction, myopts, myfiles = parse_opts(tmpcmdline)
-
 	if "--digest" in myopts:
 		os.environ["FEATURES"] = os.environ.get("FEATURES","") + " digest"
 		# Reload the whole config from scratch so that the portdbapi internal
-- 
2.26.2