[meld] maint: Allow email/markdown helper to overwrite files

[Kai Willadsen <kaiw src gnome org>]

commit 65dd378187a6a3b6b123ae9eff0422aa85805ee5
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sat Aug 23 14:32:58 2014 +1000

    maint: Allow email/markdown helper to overwrite files

 maint.py |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/maint.py b/maint.py
index ca47a99..6c02fae 100755
--- a/maint.py
+++ b/maint.py
@@ -302,11 +302,14 @@ def news():
 
 def write_somewhere(filename, output):
     if filename and os.path.exists(filename):
-        click.echo('File "%s" already exists' % filename)
-        raise click.Abort()
+        overwrite = click.confirm(
+            'File "%s" already exists. Overwrite?' % filename, abort=True)
+        if not overwrite:
+            raise click.Abort()
     if filename:
         with open(filename, 'w') as f:
             f.write(output)
+        click.echo('Wrote %s' % filename)
     else:
         click.echo(output)