+ repo=repo
+ file=repo/readme.txt
+ hg=hg -R repo
+ rm -rf repo
+ hg init repo
+ cat
+ cat
+ hg -R repo add repo/readme.txt
+ hg -R repo ci -m Birth.
+ cat
+ hg -R repo ci -m Life.
+ cat
+ hg -R repo ci -m Death. --amend
+ hg -R repo glog
@  changeset:   3:6beb1647b809
|  tag:         tip
|  parent:      0:9134909c2dbf
|  user:        Glenn Hutchings <zondo42@gmail.com>
|  date:        Tue Dec 22 20:11:10 2015 +0000
|  summary:     Death.
|
o  changeset:   0:9134909c2dbf
   user:        Glenn Hutchings <zondo42@gmail.com>
   date:        Tue Dec 22 20:11:10 2015 +0000
   summary:     Birth.

+ hg -R repo --hidden glog
@  changeset:   3:6beb1647b809
|  tag:         tip
|  parent:      0:9134909c2dbf
|  user:        Glenn Hutchings <zondo42@gmail.com>
|  date:        Tue Dec 22 20:11:10 2015 +0000
|  summary:     Death.
|
| x  changeset:   2:9964f5fac22b
| |  user:        Glenn Hutchings <zondo42@gmail.com>
| |  date:        Tue Dec 22 20:11:10 2015 +0000
| |  summary:     temporary amend commit for 16e951eccb81
| |
| x  changeset:   1:16e951eccb81
|/   user:        Glenn Hutchings <zondo42@gmail.com>
|    date:        Tue Dec 22 20:11:10 2015 +0000
|    summary:     Life.
|
o  changeset:   0:9134909c2dbf
   user:        Glenn Hutchings <zondo42@gmail.com>
   date:        Tue Dec 22 20:11:10 2015 +0000
   summary:     Birth.

+ hg -R repo id -n -r tip
+ tip=3
+ expr 3 - 1
+ hg -R repo id -n -r 2
abort: hidden revision '2'!
(use --hidden to access hidden revisions)
+ hg -R repo id -n -r 3^
0
+ hg -R repo --config extensions.evolve=! id -n -r 3^
obsolete feature not enabled but 2 markers found!
0