# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2021-04-20 17:24:03
# Node ID 1e761c1c7411aeebaea65b802ef6e209337b9156
# Parent  8138092f8790b7efbcce66fa9c224ae87ff888de

narrow: add progress-reporting when looking for local changes in `hg tracked`

Looking for local changes (changes not on the given remote) can take a
long time, so we should have progress-reporting for it.

Differential Revision: https://phab.mercurial-scm.org/D10501

diff --git a/hgext/narrow/narrowcommands.py b/hgext/narrow/narrowcommands.py
--- a/hgext/narrow/narrowcommands.py
+++ b/hgext/narrow/narrowcommands.py
@@ -227,10 +227,17 @@ def _narrow(
     unfi = repo.unfiltered()
     outgoing = discovery.findcommonoutgoing(unfi, remote, commoninc=commoninc)
     ui.status(_(b'looking for local changes to affected paths\n'))
+    progress = ui.makeprogress(
+        topic=_(b'changesets'),
+        unit=_(b'changesets'),
+        total=len(outgoing.missing) + len(outgoing.excluded),
+    )
     localnodes = []
-    for n in itertools.chain(outgoing.missing, outgoing.excluded):
-        if any(oldmatch(f) and not newmatch(f) for f in unfi[n].files()):
-            localnodes.append(n)
+    with progress:
+        for n in itertools.chain(outgoing.missing, outgoing.excluded):
+            progress.increment()
+            if any(oldmatch(f) and not newmatch(f) for f in unfi[n].files()):
+                localnodes.append(n)
     revstostrip = unfi.revs(b'descendants(%ln)', localnodes)
     hiddenrevs = repoview.filterrevs(repo, b'visible')
     visibletostrip = list(