Reverse the way backout is doing the merge
Currently, backout is creating a backout revision as a child node of the
backed out node and will leave you at this new head. This has several
drawbacks:
* this changes the current head
* when there is a long history between the backed out node and the
current head, this will generate a huge number of diffs that are scary
at first sight, and not very natural to review before commit.
The change consists to switch back to the original node as soon as the
backout node (which becomes the new tip) has been created. Then the
--merge option can just merge this new tip in the current node.
* the current head/node is not changed from the user's point of view
* even without using the --merge option, the backout revision is still
easy to locate, as this is the tip
* the merge is much more intuitive as diffs of the merge is right you
are looking to backout
# rename a single file
A d2/c
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename --after a single file
A d2/c
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move a single file to an existing directory
A d2/a1
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move --after a single file to an existing directory
A d2/a1
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename a file using a relative path
A d1/d11/e
d2/b
R d2/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename --after a file using a relative path
A d1/d11/e
d2/b
R d2/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename directory d1 as d3
moving d1/a to d3/a
moving d1/b to d3/b
moving d1/ba to d3/ba
moving d1/d11/a1 to d3/d11/a1
A d3/a
d1/a
A d3/b
d1/b
A d3/ba
d1/ba
A d3/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# rename --after directory d1 as d3
moving d1/a to d3/a
moving d1/b to d3/b
moving d1/ba to d3/ba
moving d1/d11/a1 to d3/d11/a1
A d3/a
d1/a
A d3/b
d1/b
A d3/ba
d1/ba
A d3/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move a directory using a relative path
moving ../d1/d11/a1 to d3/d11/a1
A d2/d3/d11/a1
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move --after a directory using a relative path
moving ../d1/d11/a1 to d3/d11/a1
A d2/d3/d11/a1
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move directory d1/d11 to an existing directory d2 (removes empty d1)
moving d1/d11/a1 to d2/d11/a1
A d2/d11/a1
d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move directories d1 and d2 to a new directory d3
moving d1/a to d3/d1/a
moving d1/b to d3/d1/b
moving d1/ba to d3/d1/ba
moving d1/d11/a1 to d3/d1/d11/a1
moving d2/b to d3/d2/b
A d3/d1/a
d1/a
A d3/d1/b
d1/b
A d3/d1/ba
d1/ba
A d3/d1/d11/a1
d1/d11/a1
A d3/d2/b
d2/b
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
R d2/b
5 files updated, 0 files merged, 5 files removed, 0 files unresolved
# move --after directories d1 and d2 to a new directory d3
moving d1/a to d3/d1/a
moving d1/b to d3/d1/b
moving d1/ba to d3/d1/ba
moving d1/d11/a1 to d3/d1/d11/a1
moving d2/b to d3/d2/b
A d3/d1/a
d1/a
A d3/d1/b
d1/b
A d3/d1/ba
d1/ba
A d3/d1/d11/a1
d1/d11/a1
A d3/d2/b
d2/b
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
R d2/b
5 files updated, 0 files merged, 5 files removed, 0 files unresolved
# move everything under directory d1 to existing directory d2, do not
# overwrite existing files (d2/b)
d2/b: not overwriting - file exists
moving d1/d11/a1 to d2/d11/a1
A d2/a
d1/a
A d2/ba
d1/ba
A d2/d11/a1
d1/d11/a1
R d1/a
R d1/ba
R d1/d11/a1
1c1
< d1/b
---
> d2/b
3 files updated, 0 files merged, 3 files removed, 0 files unresolved
# attempt to move one file into a non-existent directory
abort: destination dx/ is not a directory
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
# attempt to move potentially more than one file into a non-existent
# directory
abort: with multiple sources, destination must be an existing directory
# move every file under d1 to d2/d21 (glob)
moving d1/a to d2/d21/a
moving d1/b to d2/d21/b
moving d1/ba to d2/d21/ba
moving d1/d11/a1 to d2/d21/a1
A d2/d21/a
d1/a
A d2/d21/a1
d1/d11/a1
A d2/d21/b
d1/b
A d2/d21/ba
d1/ba
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move --after some files under d1 to d2/d21 (glob)
moving d1/a to d2/d21/a
moving d1/d11/a1 to d2/d21/a1
A d2/d21/a
d1/a
A d2/d21/a1
d1/d11/a1
R d1/a
R d1/d11/a1
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
# move every file under d1 starting with an 'a' to d2/d21 (regexp)
moving d1/a to d2/d21/a
moving d1/d11/a1 to d2/d21/a1
A d2/d21/a
d1/a
A d2/d21/a1
d1/d11/a1
R d1/a
R d1/d11/a1
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
# attempt to overwrite an existing file
d1/ca: not overwriting - file exists
? d1/ca
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
# forced overwrite of an existing file
A d1/ca
d1/ba
R d1/ba
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# replace a symlink with a file
A d1/ca
d1/ba
R d1/ba
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# do not copy more than one source file to the same destination file
moving d1/d11/a1 to d3/d11/a1
d3/b: not overwriting - d2/b collides with d1/b
A d3/a
d1/a
A d3/b
d1/b
A d3/ba
d1/ba
A d3/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move a whole subtree with "hg rename ."
moving a to ../d3/d1/a
moving b to ../d3/d1/b
moving ba to ../d3/d1/ba
moving d11/a1 to ../d3/d1/d11/a1
A d3/d1/a
d1/a
A d3/d1/b
d1/b
A d3/d1/ba
d1/ba
A d3/d1/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move a whole subtree with "hg rename --after ."
moving a to ../d3/a
moving b to ../d3/b
moving ba to ../d3/ba
moving d11/a1 to ../d3/d11/a1
A d3/a
d1/a
A d3/b
d1/b
A d3/ba
d1/ba
A d3/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move the parent tree with "hg rename .."
moving ../a to ../../d3/a
moving ../b to ../../d3/b
moving ../ba to ../../d3/ba
moving a1 to ../../d3/d11/a1
A d3/a
d1/a
A d3/b
d1/b
A d3/ba
d1/ba
A d3/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# skip removed files
moving d1/a to d3/a
moving d1/ba to d3/ba
moving d1/d11/a1 to d3/d11/a1
A d3/a
d1/a
A d3/ba
d1/ba
A d3/d11/a1
d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 3 files removed, 0 files unresolved
# transitive rename
A d1/bc
d1/b
R d1/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# transitive rename --after
A d1/bc
d1/b
R d1/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# idempotent renames (d1/b -> d1/bb followed by d1/bb -> d1/b)
M d1/b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
# check illegal path components
abort: path contains illegal component: .hg/foo
abort: ../foo not under root
abort: path contains illegal component: .hg/foo
! d1/d11/a1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
abort: path contains illegal component: .hg/a1
abort: ../a1 not under root
abort: path contains illegal component: .hg/a1
! d1/d11/a1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
abort: path contains illegal component: .hg/foo
abort: ../../../foo not under root