[PATCH] pager: backed out changeset aaa751585325

[Jun Wu]

# HG changeset patch
# User Jun Wu <quark at fb.com>
# Date 1486495380 28800
#      Tue Feb 07 11:23:00 2017 -0800
# Node ID 8cfbd33c54779d1bbd50412e99f8256eea954401
# Parent  a68510b69f413545722c086eaeb840dd5e8305b4
# Available At https://bitbucket.org/quark-zju/hg-draft
#              hg pull https://bitbucket.org/quark-zju/hg-draft -r 8cfbd33c5477
pager: backed out changeset aaa751585325

When a command needs a long time (ex. "hg log" on a big repo), and the user
exits the pager, they expect the hg command to exit immediately.

To be able to do that, terminating on SIGPIPE is important. Therefore revert
the change that ignores SIGPIPE.

diff --git a/hgext/pager.py b/hgext/pager.py
--- a/hgext/pager.py
+++ b/hgext/pager.py
@@ -145,4 +145,6 @@ def uisetup(ui):
             ui.setconfig('ui', 'formatted', ui.formatted(), 'pager')
             ui.setconfig('ui', 'interactive', False, 'pager')
+            if util.safehasattr(signal, "SIGPIPE"):
+                signal.signal(signal.SIGPIPE, signal.SIG_DFL)
             ui._runpager(p)
         return orig(ui, options, cmd, cmdfunc)