ui: pass a `ui` object to `paths.getpath`

I want to introduce more path's suboption and make it possible to use default
value for them.  Processing theses sub-options might result in warnings. We
need a `ui` object to issue such warnings.

To make things simpler, we add an helper method on the `ui` object.

Differential Revision: https://phab.mercurial-scm.org/D10162

contrib/perf.py

@@ -1407,7 +1407,7 b' def perfphasesremote(ui, repo, dest=None'
     opts = _byteskwargs(opts)
     timer, fm = gettimer(ui, opts)
 
-    path = ui.paths.getpath(dest, default=(b'default-push', b'default'))
+    path = ui.getpath(dest, default=(b'default-push', b'default'))
     if not path:
         raise error.Abort(
             b'default repository not configured!',

hgext/infinitepush/__init__.py

@@ -837,7 +837,7 b' def _push(orig, ui, repo, dest=None, *ar'
                 exchange, b'_localphasemove', _phasemove
             )
         # Copy-paste from `push` command
-        path = ui.paths.getpath(dest, default=(b'default-push', b'default'))
+        path = ui.getpath(dest, default=(b'default-push', b'default'))
         if not path:
             raise error.Abort(
                 _(b'default repository not configured!'),

mercurial/commands.py

@@ -4946,7 +4946,7 b' def outgoing(ui, repo, dest=None, **opts'
     """
     # hg._outgoing() needs to re-resolve the path in order to handle #branch
     # style URLs, so don't overwrite dest.
-    path = ui.paths.getpath(dest, default=(b'default-push', b'default'))
+    path = ui.getpath(dest, default=(b'default-push', b'default'))
     if not path:
         raise error.ConfigError(
             _(b'default repository not configured!'),
@@ -5680,7 +5680,7 b' def push(ui, repo, dest=None, **opts):'
                 # this lets simultaneous -r, -b options continue working
                 opts.setdefault(b'rev', []).append(b"null")
 
-    path = ui.paths.getpath(dest, default=(b'default-push', b'default'))
+    path = ui.getpath(dest, default=(b'default-push', b'default'))
     if not path:
         raise error.ConfigError(
             _(b'default repository not configured!'),

mercurial/hg.py

@@ -1317,7 +1317,7 b' def incoming(ui, repo, source, opts):'
 
 
 def _outgoing(ui, repo, dest, opts):
-    path = ui.paths.getpath(dest, default=(b'default-push', b'default'))
+    path = ui.getpath(dest, default=(b'default-push', b'default'))
     if not path:
         raise error.Abort(
             _(b'default repository not configured!'),

mercurial/revset.py

@@ -1826,9 +1826,9 b' def outgoing(repo, subset, x):'
         l and getstring(l[0], _(b"outgoing requires a repository path")) or b''
     )
     if not dest:
-        # ui.paths.getpath() explicitly tests for None, not just a boolean
+        # ui.getpath() explicitly tests for None, not just a boolean
         dest = None
-    path = repo.ui.paths.getpath(dest, default=(b'default-push', b'default'))
+    path = repo.ui.getpath(dest, default=(b'default-push', b'default'))
     if not path:
         raise error.Abort(
             _(b'default repository not configured!'),

mercurial/ui.py

@@ -1031,7 +1031,7 b' class ui(object):'
     def expandpath(self, loc, default=None):
         """Return repository location relative to cwd or from [paths]"""
         try:
-            p = self.paths.getpath(loc)
+            p = self.getpath(loc)
             if p:
                 return p.rawloc
         except error.RepoError:
@@ -1039,7 +1039,7 b' class ui(object):'
 
         if default:
             try:
-                p = self.paths.getpath(default)
+                p = self.getpath(default)
                 if p:
                     return p.rawloc
             except error.RepoError:
@@ -1051,6 +1051,13 b' class ui(object):'
     def paths(self):
         return paths(self)
 
+    def getpath(self, *args, **kwargs):
+        """see paths.getpath for details
+
+        This method exist as `getpath` need a ui for potential warning message.
+        """
+        return self.paths.getpath(self, *args, **kwargs)
+
     @property
     def fout(self):
         return self._fout
@@ -2190,7 +2197,7 b' class paths(dict):'
             loc, sub = ui.configsuboptions(b'paths', name)
             self[name] = path(ui, name, rawloc=loc, suboptions=sub)
 
-    def getpath(self, name, default=None):
+    def getpath(self, ui, name, default=None):
         """Return a ``path`` from a string, falling back to default.
 
         ``name`` can be a named path or locations. Locations are filesystem
@@ -2222,8 +2229,8 b' class paths(dict):'
         except KeyError:
             # Try to resolve as a local path or URI.
             try:
-                # We don't pass sub-options in, so no need to pass ui instance.
-                return path(None, None, rawloc=name)
+                # we pass the ui instance are warning might need to be issued
+                return path(ui, None, rawloc=name)
             except ValueError:
                 raise error.RepoError(_(b'repository %s does not exist') % name)