dispatch: making all hg abortions be output with a specific label

This allows abortions to be highlighted specially and separately
from warnings - for instance, red is a reasonable color for when hg
aborts, but is overly dramatic for most warnings produced elsewhere.

Differential Revision: https://phab.mercurial-scm.org/D3967

mercurial/color.py

@@ -117,6 +117,7 b' except ImportError:'
     'formatvariant.config.default': 'green',
     'formatvariant.default': '',
     'histedit.remaining': 'red bold',
+    'ui.error': 'red',
     'ui.prompt': 'yellow',
     'log.changeset': 'yellow',
     'patchbomb.finalsummary': '',

mercurial/commandserver.py

@@ -353,7 +353,7 b' def _serverequest(ui, repo, conn, create'
         # handle exceptions that may be raised by command server. most of
         # known exceptions are caught by dispatch.
         except error.Abort as inst:
-            ui.warn(_('abort: %s\n') % inst)
+            ui.error(_('abort: %s\n') % inst)
         except IOError as inst:
             if inst.errno != errno.EPIPE:
                 raise

mercurial/dispatch.py

@@ -212,9 +212,9 b' def dispatch(req):'
     try:
         ret = _runcatch(req) or 0
     except error.ProgrammingError as inst:
-        req.ui.warn(_('** ProgrammingError: %s\n') % inst)
+        req.ui.error(_('** ProgrammingError: %s\n') % inst)
         if inst.hint:
-            req.ui.warn(_('** (%s)\n') % inst.hint)
+            req.ui.error(_('** (%s)\n') % inst.hint)
         raise
     except KeyboardInterrupt as inst:
         try:
@@ -222,7 +222,7 b' def dispatch(req):'
                 msg = _("killed!\n")
             else:
                 msg = _("interrupted!\n")
-            req.ui.warn(msg)
+            req.ui.error(msg)
         except error.SignalInterrupt:
             # maybe pager would quit without consuming all the output, and
             # SIGPIPE was raised. we cannot print anything in this case.

mercurial/scmutil.py

@@ -169,12 +169,12 b' def callcatch(ui, func):'
             reason = _('timed out waiting for lock held by %r') % inst.locker
         else:
             reason = _('lock held by %r') % inst.locker
-        ui.warn(_("abort: %s: %s\n")
-                % (inst.desc or stringutil.forcebytestr(inst.filename), reason))
+        ui.error(_("abort: %s: %s\n") % (
+            inst.desc or stringutil.forcebytestr(inst.filename), reason))
         if not inst.locker:
-            ui.warn(_("(lock might be very busy)\n"))
+            ui.error(_("(lock might be very busy)\n"))
     except error.LockUnavailable as inst:
-        ui.warn(_("abort: could not lock %s: %s\n") %
+        ui.error(_("abort: could not lock %s: %s\n") %
                 (inst.desc or stringutil.forcebytestr(inst.filename),
                  encoding.strtolocal(inst.strerror)))
     except error.OutOfBandError as inst:
@@ -182,51 +182,51 b' def callcatch(ui, func):'
             msg = _("abort: remote error:\n")
         else:
             msg = _("abort: remote error\n")
-        ui.warn(msg)
+        ui.error(msg)
         if inst.args:
-            ui.warn(''.join(inst.args))
+            ui.error(''.join(inst.args))
         if inst.hint:
-            ui.warn('(%s)\n' % inst.hint)
+            ui.error('(%s)\n' % inst.hint)
     except error.RepoError as inst:
-        ui.warn(_("abort: %s!\n") % inst)
+        ui.error(_("abort: %s!\n") % inst)
         if inst.hint:
-            ui.warn(_("(%s)\n") % inst.hint)
+            ui.error(_("(%s)\n") % inst.hint)
     except error.ResponseError as inst:
-        ui.warn(_("abort: %s") % inst.args[0])
+        ui.error(_("abort: %s") % inst.args[0])
         msg = inst.args[1]
         if isinstance(msg, type(u'')):
             msg = pycompat.sysbytes(msg)
         if not isinstance(msg, bytes):
-            ui.warn(" %r\n" % (msg,))
+            ui.error(" %r\n" % (msg,))
         elif not msg:
-            ui.warn(_(" empty string\n"))
+            ui.error(_(" empty string\n"))
         else:
-            ui.warn("\n%r\n" % pycompat.bytestr(stringutil.ellipsis(msg)))
+            ui.error("\n%r\n" % pycompat.bytestr(stringutil.ellipsis(msg)))
     except error.CensoredNodeError as inst:
-        ui.warn(_("abort: file censored %s!\n") % inst)
+        ui.error(_("abort: file censored %s!\n") % inst)
     except error.RevlogError as inst:
-        ui.warn(_("abort: %s!\n") % inst)
+        ui.error(_("abort: %s!\n") % inst)
     except error.InterventionRequired as inst:
-        ui.warn("%s\n" % inst)
+        ui.error("%s\n" % inst)
         if inst.hint:
-            ui.warn(_("(%s)\n") % inst.hint)
+            ui.error(_("(%s)\n") % inst.hint)
         return 1
     except error.WdirUnsupported:
-        ui.warn(_("abort: working directory revision cannot be specified\n"))
+        ui.error(_("abort: working directory revision cannot be specified\n"))
     except error.Abort as inst:
-        ui.warn(_("abort: %s\n") % inst)
+        ui.error(_("abort: %s\n") % inst)
         if inst.hint:
-            ui.warn(_("(%s)\n") % inst.hint)
+            ui.error(_("(%s)\n") % inst.hint)
     except ImportError as inst:
-        ui.warn(_("abort: %s!\n") % stringutil.forcebytestr(inst))
+        ui.error(_("abort: %s!\n") % stringutil.forcebytestr(inst))
         m = stringutil.forcebytestr(inst).split()[-1]
         if m in "mpatch bdiff".split():
-            ui.warn(_("(did you forget to compile extensions?)\n"))
+            ui.error(_("(did you forget to compile extensions?)\n"))
         elif m in "zlib".split():
-            ui.warn(_("(is your Python install correct?)\n"))
+            ui.error(_("(is your Python install correct?)\n"))
     except IOError as inst:
         if util.safehasattr(inst, "code"):
-            ui.warn(_("abort: %s\n") % stringutil.forcebytestr(inst))
+            ui.error(_("abort: %s\n") % stringutil.forcebytestr(inst))
         elif util.safehasattr(inst, "reason"):
             try: # usually it is in the form (errno, strerror)
                 reason = inst.reason.args[1]
@@ -236,34 +236,34 b' def callcatch(ui, func):'
             if isinstance(reason, pycompat.unicode):
                 # SSLError of Python 2.7.9 contains a unicode
                 reason = encoding.unitolocal(reason)
-            ui.warn(_("abort: error: %s\n") % reason)
+            ui.error(_("abort: error: %s\n") % reason)
         elif (util.safehasattr(inst, "args")
               and inst.args and inst.args[0] == errno.EPIPE):
             pass
         elif getattr(inst, "strerror", None):
             if getattr(inst, "filename", None):
-                ui.warn(_("abort: %s: %s\n") % (
+                ui.error(_("abort: %s: %s\n") % (
                     encoding.strtolocal(inst.strerror),
                     stringutil.forcebytestr(inst.filename)))
             else:
-                ui.warn(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
+                ui.error(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
         else:
             raise
     except OSError as inst:
         if getattr(inst, "filename", None) is not None:
-            ui.warn(_("abort: %s: '%s'\n") % (
+            ui.error(_("abort: %s: '%s'\n") % (
                 encoding.strtolocal(inst.strerror),
                 stringutil.forcebytestr(inst.filename)))
         else:
-            ui.warn(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
+            ui.error(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
     except MemoryError:
-        ui.warn(_("abort: out of memory\n"))
+        ui.error(_("abort: out of memory\n"))
     except SystemExit as inst:
         # Commands shouldn't sys.exit directly, but give a return code.
         # Just in case catch this and and pass exit code to caller.
         return inst.code
     except socket.error as inst:
-        ui.warn(_("abort: %s\n") % stringutil.forcebytestr(inst.args[-1]))
+        ui.error(_("abort: %s\n") % stringutil.forcebytestr(inst.args[-1]))
 
     return -1
 

mercurial/ui.py

@@ -1420,6 +1420,7 b' class ui(object):'
                     return getpass.getpass('')
         except EOFError:
             raise error.ResponseExpected()
+
     def status(self, *msg, **opts):
         '''write status message to output (if ui.quiet is False)
 
@@ -1428,6 +1429,7 b' class ui(object):'
         if not self.quiet:
             opts[r'label'] = opts.get(r'label', '') + ' ui.status'
             self.write(*msg, **opts)
+
     def warn(self, *msg, **opts):
         '''write warning message to output (stderr)
 
@@ -1435,6 +1437,15 b' class ui(object):'
         '''
         opts[r'label'] = opts.get(r'label', '') + ' ui.warning'
         self.write_err(*msg, **opts)
+
+    def error(self, *msg, **opts):
+        '''write error message to output (stderr)
+
+        This adds an output label of "ui.error".
+        '''
+        opts[r'label'] = opts.get(r'label', '') + ' ui.error'
+        self.write_err(*msg, **opts)
+
     def note(self, *msg, **opts):
         '''write note to output (if ui.verbose is True)
 
@@ -1443,6 +1454,7 b' class ui(object):'
         if self.verbose:
             opts[r'label'] = opts.get(r'label', '') + ' ui.note'
             self.write(*msg, **opts)
+
     def debug(self, *msg, **opts):
         '''write debug message to output (if ui.debugflag is True)