ensure that all the scenarios in the user guide work as documented

basic repo

  $ hg init t

  $ cd t

  $ touch file1.c file2.c

  $ hg -q commit -A -m init

example 1: commit creates a changeset in draft phase

(this is nothing to do with evolve, but it's mentioned in the user guide)

  $ echo 'feature Y' >> file1.c

  $ hg commit -u alice -d '0 0' -m 'implement feature X'

  $ hg phase -r .

  1: draft

  $ hg identify -in

  6e725fd2be6f 1

example 2: unsafe amend with plain vanilla Mercurial: the original

commit is stripped

  $ hg commit --amend -u alice -d '1 0' -m 'implement feature Y'

  saved backup bundle to $TESTTMP/t/.hg/strip-backup/6e725fd2be6f-42cc74d4-amend-backup.hg (glob)

  $ hg log -r 23fe4ac6d3f1

  abort: unknown revision '23fe4ac6d3f1'!

  [255]

  $ hg identify -in

  fe0ecd3bd2a4 1

enable evolve for safe history modification

  $ cat >> $HGRCPATH <<EOF

  > [alias]

  > shortlog = log --template '{rev}:{node|short}  {phase}  {desc|firstline}\n'

  > [extensions]

  > rebase =

  > EOF

  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH

example 3: safe amend with "hg commit --amend" (figure 2)

  $ echo 'tweak feature Y' >> file1.c

  $ hg commit --amend -u alice -d '2 0' -m 'implement feature Y'

  $ hg shortlog -q -r fe0ecd3bd2a4

  abort: hidden revision 'fe0ecd3bd2a4'!

  (use --hidden to access hidden revisions)

  [255]

  $ hg --hidden shortlog -G

  @  3:934359450037  draft  implement feature Y

  |

  | x  2:6c5f78d5d467  draft  temporary amend commit for fe0ecd3bd2a4

  | |

  | x  1:fe0ecd3bd2a4  draft  implement feature Y

  |/

  o  0:08c4b6f4efc8  draft  init

example 3 redux: repeat safe amend, this time with "hg amend"

  $ hg rollback -q

  $ hg amend -u alice -d '2 0' -m 'implement feature Y'

  $ hg --hidden shortlog -G

  @  3:934359450037  draft  implement feature Y

  |

  | x  2:6c5f78d5d467  draft  temporary amend commit for fe0ecd3bd2a4

  | |

  | x  1:fe0ecd3bd2a4  draft  implement feature Y

  |/

  o  0:08c4b6f4efc8  draft  init

example 4: prune at head (figure 3)

  $ echo 'debug hack' >> file1.c

  $ hg commit -m 'debug hack'

  $ hg prune .

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  working directory now at 934359450037

  1 changesets pruned

  $ hg parents --template '{rev}:{node|short}  {desc|firstline}\n'

  3:934359450037  implement feature Y

  $ hg --hidden shortlog -G -r 3:

  x  4:a3e0ef24aaf0  draft  debug hack

  |

  @  3:934359450037  draft  implement feature Y

  |

  ~

example 5: uncommit files at head (figure 4)

  $ echo 'relevant' >> file1.c

  $ echo 'irrelevant' >> file2.c

  $ hg commit -u dan -d '10 0' -m 'fix bug 234'

  $ hg uncommit file2.c

  $ hg status

  M file2.c

  $ hg --hidden shortlog -G -r 'descendants(3) - 4'

  @  6:c8defeecf7a4  draft  fix bug 234

  |

  | x  5:da4331967f5f  draft  fix bug 234

  |/

  o  3:934359450037  draft  implement feature Y

  |

  ~

  $ hg parents --template '{rev}:{node|short}  {desc|firstline}\n{files}\n'

  6:c8defeecf7a4  fix bug 234

  file1.c

  $ hg revert --no-backup file2.c

example 6: fold multiple changesets together into one (figure 5)

  $ echo step1 >> file1.c

  $ hg commit -m 'step 1'

  $ echo step2 >> file1.c

  $ hg commit -m 'step 2'

  $ echo step3 >> file2.c

  $ hg commit -m 'step 3'

  $ hg log --template '{rev}:{node|short}  {desc|firstline}\n' -r 7::

  7:05e61aab8294  step 1

  8:be6d5bc8e4cc  step 2

  9:35f432d9f7c1  step 3

  $ hg fold -d '0 0' -m 'fix bug 64' -r 7::

  3 changesets folded

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg --hidden shortlog -G -r 6::

  @  10:171c6a79a27b  draft  fix bug 64

  |

  | x  9:35f432d9f7c1  draft  step 3

  | |

  | x  8:be6d5bc8e4cc  draft  step 2

  | |

  | x  7:05e61aab8294  draft  step 1

  |/

  o  6:c8defeecf7a4  draft  fix bug 234

  |

  ~

  $ hg --hidden log -q -r 'successors(7) | successors(8) | successors(9)'

  10:171c6a79a27b

  $ hg --hidden log -q -r 'precursors(10)'

  7:05e61aab8294

  8:be6d5bc8e4cc

  9:35f432d9f7c1

  $ hg diff -c 10 -U 0

  diff -r c8defeecf7a4 -r 171c6a79a27b file1.c

  --- a/file1.c	Thu Jan 01 00:00:10 1970 +0000

  +++ b/file1.c	Thu Jan 01 00:00:00 1970 +0000

  @@ -3,0 +4,2 @@

  +step1

  +step2

  diff -r c8defeecf7a4 -r 171c6a79a27b file2.c

  --- a/file2.c	Thu Jan 01 00:00:10 1970 +0000

  +++ b/file2.c	Thu Jan 01 00:00:00 1970 +0000

  @@ -0,0 +1,1 @@

  +step3

setup for example 7: amend an older changeset

  $ echo 'fix fix oops fix' > file2.c

  $ hg commit -u bob -d '3 0' -m 'fix bug 17'

  $ echo 'cleanup' >> file1.c

  $ hg commit -u bob -d '4 0' -m 'cleanup'

  $ echo 'new feature' >> file1.c

  $ hg commit -u bob -d '5 0' -m 'feature 23'

  $ hg --hidden shortlog -G -r 10::

  @  13:dadcbba2d606  draft  feature 23

  |

  o  12:debd46bb29dc  draft  cleanup

  |

  o  11:3e1cb8f70c02  draft  fix bug 17

  |

  o  10:171c6a79a27b  draft  fix bug 64

  |

  ~

example 7: amend an older changeset (figures 6, 7)

  $ hg update -q 11

  $ echo 'fix fix fix fix' > file2.c

  $ hg amend -u bob -d '6 0'

  2 new unstable changesets

  $ hg shortlog -r 'obsolete()'

  11:3e1cb8f70c02  draft  fix bug 17

  $ hg shortlog -r 'unstable()'

  12:debd46bb29dc  draft  cleanup

  13:dadcbba2d606  draft  feature 23

  $ hg --hidden shortlog -G -r 10::

  @  15:395cbeda3a06  draft  fix bug 17

  |

  | x  14:f7fab707e247  draft  temporary amend commit for 3e1cb8f70c02

  | |

  | | o  13:dadcbba2d606  draft  feature 23

  | | |

  | | o  12:debd46bb29dc  draft  cleanup

  | |/

  | x  11:3e1cb8f70c02  draft  fix bug 17

  |/

  o  10:171c6a79a27b  draft  fix bug 64

  |

  ~

  $ hg evolve -q --all

  $ hg shortlog -G -r 10::

  @  17:91b4b0f8b5c5  draft  feature 23

  |

  o  16:fe8858bd9bc2  draft  cleanup

  |

  o  15:395cbeda3a06  draft  fix bug 17

  |

  o  10:171c6a79a27b  draft  fix bug 64

  |

  ~

setup for example 8: prune an older changeset (figure 8)

  $ echo 'useful' >> file1.c

  $ hg commit -u carl -d '7 0' -m 'useful work'

  $ echo 'debug' >> file2.c

  $ hg commit -u carl -d '8 0' -m 'debug hack'

  $ echo 'more useful' >> file1.c

  $ hg commit -u carl -d '9 0' -m 'more work'

  $ hg shortlog -G -r 17::

  @  20:ea8fafca914b  draft  more work

  |

  o  19:b23d06b457a8  draft  debug hack

  |

  o  18:1f33e68b18b9  draft  useful work

  |

  o  17:91b4b0f8b5c5  draft  feature 23

  |

  ~

example 8: prune an older changeset (figures 8, 9)

  $ hg prune 19

  1 changesets pruned

  1 new unstable changesets

  $ hg --hidden shortlog -G -r 18::

  @  20:ea8fafca914b  draft  more work

  |

  x  19:b23d06b457a8  draft  debug hack

  |

  o  18:1f33e68b18b9  draft  useful work

  |

  ~

  $ hg evolve -q --all --any

  $ hg --hidden shortlog -G -r 18::

  @  21:4393e5877437  draft  more work

  |

  | x  20:ea8fafca914b  draft  more work

  | |

  | x  19:b23d06b457a8  draft  debug hack

  |/

  o  18:1f33e68b18b9  draft  useful work

  |

  ~

example 9: uncommit files from an older changeset (discard changes)

(figure 10)

  $ echo 'this fixes bug 53' >> file1.c

  $ echo 'debug hack' >> file2.c

  $ hg commit -u dan -d '11 0' -m 'fix bug 53'

  $ echo 'and this handles bug 67' >> file1.c

  $ hg commit -u dan -d '12 0' -m 'fix bug 67'

  $ hg update 22

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg shortlog -G -r 21::

  o  23:4db2428c8ae3  draft  fix bug 67

  |

  @  22:f84357446753  draft  fix bug 53

  |

  o  21:4393e5877437  draft  more work

  |

  ~

  $ hg uncommit file2.c

  1 new unstable changesets

  $ hg status

  M file2.c

  $ hg revert file2.c

  $ hg evolve --all --any

  move:[23] fix bug 67

  atop:[24] fix bug 53

  working directory is now at 0d972d6888e6

  $ hg --hidden shortlog -G -r 21::

  @  25:0d972d6888e6  draft  fix bug 67

  |

  o  24:71bb83d674c5  draft  fix bug 53

  |

  | x  23:4db2428c8ae3  draft  fix bug 67

  | |

  | x  22:f84357446753  draft  fix bug 53

  |/

  o  21:4393e5877437  draft  more work

  |

  ~

  $ rm file2.c.orig

example 10: uncommit files from an older changeset (keep changes)

(figures 11, 12)

  $ echo 'fix a bug' >> file1.c

  $ echo 'useful but unrelated' >> file2.c

  $ hg commit -u dan -d '11 0' -m 'fix a bug'

  $ echo 'new feature' >> file1.c

  $ hg commit -u dan -d '12 0' -m 'new feature'

  $ hg update 26

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg --hidden shortlog -G -r 25::

  o  27:fbb3c6d50427  draft  new feature

  |

  @  26:5b31a1239ab9  draft  fix a bug

  |

  o  25:0d972d6888e6  draft  fix bug 67

  |

  ~

  $ hg uncommit file2.c

  1 new unstable changesets

  $ hg status

  M file2.c

  $ hg commit -m 'useful tweak'

  $ hg --hidden shortlog -G -r 25::

  @  29:51e0d8c0a922  draft  useful tweak

  |

  o  28:2594e98553a9  draft  fix a bug

  |

  | o  27:fbb3c6d50427  draft  new feature

  | |

  | x  26:5b31a1239ab9  draft  fix a bug

  |/

  o  25:0d972d6888e6  draft  fix bug 67

  |

  ~

  $ hg evolve --all --any

  move:[27] new feature

  atop:[28] fix a bug

  working directory is now at 166c1c368ab6

  $ hg --hidden shortlog -G -r 25::

  @  30:166c1c368ab6  draft  new feature

  |

  | o  29:51e0d8c0a922  draft  useful tweak

  |/

  o  28:2594e98553a9  draft  fix a bug

  |

  | x  27:fbb3c6d50427  draft  new feature

  | |

  | x  26:5b31a1239ab9  draft  fix a bug

  |/

  o  25:0d972d6888e6  draft  fix bug 67

  |

  ~