# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1614706405 28800
# Node ID 6edc8800dbc3310bb2b6b4deb11cadfeaacc20fa
# Parent  2f2107c01dee8d9cd0ded70ea319a72e74738ad0
dispatch: use detailed exit code 250 for keyboard interrupt

Among our users at Google, we're still seeing several percent of
commands fail with exit code 255. I suspect keyboard interrupts is an
important remaining reason.

This is a resend of D10086 with some fixes for pager handling added
ahead of it.

Differential Revision: https://phab.mercurial-scm.org/D11628

diff -r 2f2107c01dee -r 6edc8800dbc3 mercurial/dispatch.py
--- a/mercurial/dispatch.py	Fri Oct 08 13:36:02 2021 -0700
+++ b/mercurial/dispatch.py	Tue Mar 02 09:33:25 2021 -0800
@@ -316,7 +316,10 @@
             except IOError as inst:
                 if inst.errno != errno.EPIPE:
                     raise
-            ret = -1
+            if req.ui.configbool(b'ui', b'detailed-exit-code'):
+                ret = 250
+            else:
+                ret = -1
         finally:
             duration = util.timer() - starttime
             try:
diff -r 2f2107c01dee -r 6edc8800dbc3 tests/test-chg.t
--- a/tests/test-chg.t	Fri Oct 08 13:36:02 2021 -0700
+++ b/tests/test-chg.t	Tue Mar 02 09:33:25 2021 -0800
@@ -188,12 +188,12 @@
   $ chg bulkwrite --pager=on --color no --config ui.formatted=True
   paged! 'going to write massive data\n'
   killed! (?)
-  [255]
+  [250]
 
   $ chg bulkwrite --pager=on --color no --config ui.formatted=True
   paged! 'going to write massive data\n'
   killed! (?)
-  [255]
+  [250]
 
   $ cd ..
 
diff -r 2f2107c01dee -r 6edc8800dbc3 tests/test-commandserver.t
--- a/tests/test-commandserver.t	Fri Oct 08 13:36:02 2021 -0700
+++ b/tests/test-commandserver.t	Tue Mar 02 09:33:25 2021 -0800
@@ -792,7 +792,7 @@
   *** runcommand debugsuicide
   interrupted!
   killed!
-   [255]
+   [250]
 
 #endif
 
diff -r 2f2107c01dee -r 6edc8800dbc3 tests/test-nointerrupt.t
--- a/tests/test-nointerrupt.t	Fri Oct 08 13:36:02 2021 -0700
+++ b/tests/test-nointerrupt.t	Tue Mar 02 09:33:25 2021 -0800
@@ -66,7 +66,7 @@
   $ sh -c "../send-signal.sh INT" &
   $ hg wait-signal
   interrupted!
-  [255]
+  [250]
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
@@ -77,7 +77,7 @@
   $ sh -c "../send-signal.sh INT" &
   $ hg wait-signal
   interrupted!
-  [255]
+  [250]
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
@@ -91,4 +91,4 @@
   press ^C again to terminate immediately (dangerous)
   end of unsafe operation
   interrupted!
-  [255]
+  [250]