[gentoo-portage-dev] [PATCH 2/2] emerge: default --backtrack=10 (bug 540562)

[Zac Medico]

Since the default behavior is now for emerge to terminate early for
autounmask changes (unless either --autounmask-backtrack=y or
--autounmask-continue is enabled), it is much less likely that time
will be wasted by fruitless backtracking. Therefore, raise the default
backtrack value from 3 to 10, restoring it to the value it had prior
to commit 1891388ea0ae0dd58903a71a3adc779731523601 (see bug 536926).
This will allow many users to avoid having to manually raise the
--backtrack value.

X-Gentoo-bug: 540562
X-Gentoo-bug-url: https://bugs.gentoo.org/show_bug.cgi?id=540562
---
 man/emerge.1            | 2 +-
 pym/_emerge/depgraph.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/man/emerge.1 b/man/emerge.1
index 94edc90..240d4de 100644
--- a/man/emerge.1
+++ b/man/emerge.1
@@ -412,7 +412,7 @@ precedence over existing changes. This option is automatically enabled with
 .BR \-\-backtrack=COUNT
 Specifies an integer number of times to backtrack if
 dependency calculation fails due to a conflict or an
-unsatisfied dependency (default: \'3\').
+unsatisfied dependency (default: \'10\').
 .TP
 .BR "\-\-binpkg\-changed\-deps [ y | n ]"
 Tells emerge to ignore binary packages for which the corresponding
diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 53910dd..cda497b 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -9460,7 +9460,7 @@ def _backtrack_depgraph(settings, trees, myopts, myparams, myaction, myfiles, sp
 
 	debug = "--debug" in myopts
 	mydepgraph = None
-	max_retries = myopts.get('--backtrack', 3)
+	max_retries = myopts.get('--backtrack', 10)
 	max_depth = max(1, (max_retries + 1) // 2)
 	allow_backtracking = max_retries > 0
 	backtracker = Backtracker(max_depth)
-- 
2.10.2