unshelve: don't commit unknown files during unshelve (
issue4113)
Previously, unshelve would temporarily commit unknown files (via addremove) in
an attempt to allow unshelving into unknown files. This produced unexpected
results, like the file time stamp changing and a .i file being created.
This change makes it no longer use addremove. It ignores unknown files
completely. If an unshelve would overwrite an unknown file, the unknown file is
moved to *.orig
The shelve continue/abort format is changed, but it just removes stuff from the
end of the file, so it can still read the old format.
$ hg init
$ touch a
$ hg add a
$ hg ci -m "a"
$ echo 123 > b
$ hg add b
$ hg diff --nodates
diff -r 3903775176ed b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+123
$ hg diff --nodates -r tip
diff -r 3903775176ed b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+123
$ echo foo > a
$ hg diff --nodates
diff -r 3903775176ed a
--- a/a
+++ b/a
@@ -0,0 +1,1 @@
+foo
diff -r 3903775176ed b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+123
$ hg diff -r ""
hg: parse error: empty query
[255]
$ hg diff -r tip -r ""
hg: parse error: empty query
[255]