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commands.update() now works properly with a revision of 0
authorMark Drago <markdrago@gmail.com>
Tue, 08 Mar 2011 08:41:39 -0500
changeset 13568 0b79cf616e65
parent 13567 cc27c31ebc28
child 13569 3ab3b892d223
commands.update() now works properly with a revision of 0 Without this change commands.update() treats an integer 0 as if no revision was passed and updates to the branch head. This fix allows an integer 0 to be detected as a revision number so the working directory is correctly changed to revision 0 rather than the branch head.
mercurial/commands.py file | annotate | diff | comparison | revisions
tests/test-basic.t file | annotate | diff | comparison | revisions 
--- a/mercurial/commands.py	Tue Mar 08 14:55:31 2011 -0600
+++ b/mercurial/commands.py	Tue Mar 08 08:41:39 2011 -0500
@@ -4053,7 +4053,7 @@
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
-    if not rev:
+    if rev is None or rev == '':
         rev = node
 
     # if we defined a bookmark, we have to remember the original bookmark name
--- a/tests/test-basic.t	Tue Mar 08 14:55:31 2011 -0600
+++ b/tests/test-basic.t	Tue Mar 08 08:41:39 2011 -0500
@@ -20,6 +20,22 @@
   summary:     test
   
 
+Verify that updating to revision 0 via commands.update() works properly
+
+  $ cat <<EOF > update_to_rev0.py
+  > from mercurial import ui, hg, commands
+  > myui = ui.ui()
+  > repo = hg.repository(myui, path='.')
+  > commands.update(myui, repo, rev=0)
+  > EOF
+  $ hg up null
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ python ./update_to_rev0.py
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg identify -n
+  0
+ 
+
 Poke around at hashes:
 
   $ hg manifest --debug
mercurial