comparison tests/test-stabilize-order.t @ 269:6c6bb7a23bb5 0.1.0

stabilize: improve unstable selection heuristic

Without argument, stabilize was picking the first in:

  "unstable() and ((suspended() or obsancestors(::.))::)"

which usually returned the "oldest" unstable revision in parent
predecessors descendants. This revision is interesting because it
usually gives "soft" merges but rebasing it left the working directory
on a remote branch, which was very confusing.

The new heuristic picks an unstable changeset which can be rebased on
top of the parent revision, or on top of one of its descendants
(selected in revision order). This has the advantage of selecting a
revision which can be rebased on the current subtree, and leave the
working directory in a more convenient location.

269:6c6bb7a23bb5

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > [extensions]
  > hgext.rebase=
  > hgext.graphlog=
  > EOF
  $ echo "obsolete=$(echo $(dirname $TESTDIR))/hgext/obsolete.py" >> $HGRCPATH
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH

  $ glog() {
  >   hg glog --template '{rev}:{node|short}@{branch}({phase}) {desc|firstline}\n' "$@"
  > }

  $ hg init repo
  $ cd repo
  $ echo root > root
  $ hg ci -Am addroot
  adding root
  $ echo a > a
  $ hg ci -Am adda
  adding a
  $ echo b > b
  $ hg ci -Am addb
  adding b
  $ echo c > c
  $ hg ci -Am addc
  adding c
  $ glog
  @  3:7a7552255fb5@default(draft) addc
  |
  o  2:ef23d6ef94d6@default(draft) addb
  |
  o  1:93418d2c0979@default(draft) adda
  |
  o  0:c471ef929e6a@default(draft) addroot
  
  $ hg gdown
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  [2] addb
  $ echo b >> b
  $ hg amend
  1 new unstables changesets
  $ hg gdown
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  [1] adda
  $ echo a >> a
  $ hg amend
  1 new unstables changesets
  $ glog
  @  7:f5ff10856e5a@default(draft) adda
  |
  | o  5:ab8cbb6d87ff@default(draft) addb
  | |
  | | o  3:7a7552255fb5@default(draft) addc
  | | |
  | | o  2:ef23d6ef94d6@default(draft) addb
  | |/
  | o  1:93418d2c0979@default(draft) adda
  |/
  o  0:c471ef929e6a@default(draft) addroot
  

Test stabilizing a predecessor child

  $ hg stabilize -v
  move:[5] addb
  atop:[7] adda
  hg rebase -Dr ab8cbb6d87ff -d f5ff10856e5a
  resolving manifests
  getting b
  b
  $ glog
  @  8:6bf44048e43f@default(draft) addb
  |
  o  7:f5ff10856e5a@default(draft) adda
  |
  | o  3:7a7552255fb5@default(draft) addc
  | |
  | o  2:ef23d6ef94d6@default(draft) addb
  | |
  | o  1:93418d2c0979@default(draft) adda
  |/
  o  0:c471ef929e6a@default(draft) addroot
  

Test stabilizing a descendant predecessors child

  $ hg up 7
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg stabilize -v
  move:[3] addc
  atop:[8] addb
  hg rebase -Dr 7a7552255fb5 -d 6bf44048e43f
  resolving manifests
  getting b
  resolving manifests
  getting c
  c
  $ glog
  @  9:5e819fbb0d27@default(draft) addc
  |
  o  8:6bf44048e43f@default(draft) addb
  |
  o  7:f5ff10856e5a@default(draft) adda
  |
  o  0:c471ef929e6a@default(draft) addroot
  
  $ hg stabilize -v
  no unstable changeset
  [1]

Test behaviour with --any

  $ hg up 8
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo b >> b
  $ hg amend
  1 new unstables changesets
  $ glog
  @  11:4e7cec6b4afe@default(draft) addb
  |
  | o  9:5e819fbb0d27@default(draft) addc
  | |
  | o  8:6bf44048e43f@default(draft) addb
  |/
  o  7:f5ff10856e5a@default(draft) adda
  |
  o  0:c471ef929e6a@default(draft) addroot
  
  $ hg up 9
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg stabilize -v
  nothing to stabilize here
  (1 unstable changesets, do you want --any ?)
  [2]
  $ hg stabilize --any -v
  move:[9] addc
  atop:[11] addb
  hg rebase -Dr 5e819fbb0d27 -d 4e7cec6b4afe
  resolving manifests
  removing c
  getting b
  resolving manifests
  getting c
  c
  $ glog
  @  12:24f95816bb21@default(draft) addc
  |
  o  11:4e7cec6b4afe@default(draft) addb
  |
  o  7:f5ff10856e5a@default(draft) adda
  |
  o  0:c471ef929e6a@default(draft) addroot
  
  $ hg stabilize --any -v
  no unstable changeset
  [1]