# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2021-01-18 09:24:11
# Node ID 57370e7deb7b4c9d470c542febbae30b3f40e1f7
# Parent  135056e8b5a8c6261e16fbd040f99aefec08e3f9

purge: also deal with directory with --confirm

Getting the exact number is simple (you have to project the result of previous
deletion to detect super-directory with only about-to-be-deleted content). So we
use a vaguer message.

Differential Revision: https://phab.mercurial-scm.org/D9819

diff --git a/mercurial/merge.py b/mercurial/merge.py
--- a/mercurial/merge.py
+++ b/mercurial/merge.py
@@ -2386,9 +2386,19 @@ def purge(
             elif nb_ignored:
                 msg = _(b"permanently delete %d ignored files?")
                 msg %= nb_ignored
-            else:
-                # XXX we might be missing directory there
-                return res
+            elif removeemptydirs:
+                dir_count = 0
+                for f in directories:
+                    if matcher(f) and not repo.wvfs.listdir(f):
+                        dir_count += 1
+                if dir_count:
+                    msg = _(
+                        b"permanently delete at least %d empty directories?"
+                    )
+                    msg %= dir_count
+                else:
+                    # XXX we might be missing directory there
+                    return res
             msg += b" (yN)$$ &Yes $$ &No"
             if repo.ui.promptchoice(msg, default=1) == 1:
                 raise error.CanceledError(_(b'removal cancelled'))
diff --git a/tests/test-purge.t b/tests/test-purge.t
--- a/tests/test-purge.t
+++ b/tests/test-purge.t
@@ -23,6 +23,10 @@ delete an empty directory
   $ mkdir empty_dir
   $ hg purge -p -v
   empty_dir
+  $ hg purge --confirm
+  permanently delete at least 1 empty directories? (yN) n
+  abort: removal cancelled
+  [250]
   $ hg purge -v
   removing directory empty_dir
   $ ls -A