view tests/test-revert.t @ 42044:bb271ec2fbfb

compression: introduce a `storage.revlog.zstd.level` configuration

This option control the zstd compression level used when compressing revlog
chunk. The usage of zstd for revlog compression has not graduated from
experimental yet, but we intend to fix that soon.

The option name for the compression level is more straight forward to pick, so
this changesets comes first.  Having a dedicated option for each compression
engine is useful because they don't support the same range of values.

I ran the same measurement as for the zlib compression level (in the parent
changesets). The variation in repository size is stay mostly in the same (small)
range. The "read/write" performance see smallish variation, but are overall much
better than zlib. Write performance show the same tend of having better write
performance for when reaching high-end compression.

Again, we don't intend to change the default zstd compression level (currently:
3) in this series. However this is worth investigating in the future.

The Performance comparison of zlib vs zstd is quite impressive. The repository
size stay in the same range, but the performance are much better in all
situations.

Comparison summary
==================

We are looking at:
- performance range for zlib
- performance range for zstd
- comparison of default zstd (level-3) to default zlib (level 6)
- comparison of the slowest zstd time to the fastest zlib time

Read performance:
-----------------
          |           zlib          |           zstd          | cmp | f2s
mercurial |   0.170159 -   0.189219 |   0.144127 -   0.149624 | 80% | 88%
pypy      |   2.679217 -   2.768691 |   1.532317 -   1.705044 | 60% | 63%
netbeans  | 122.477027 - 141.620281 |  72.996346 -  89.731560 | 58% | 73%
mozilla   | 147.867662 - 170.572118 |  91.700995 - 105.853099 | 56% | 71%

Write performance:
------------------
          |           zlib          |           zstd          | cmp | f2s
mercurial |  53.250304 - 56.2936129 |  40.877025 -  45.677286 | 75% | 86%
pypy      | 460.721984 - 476.589918 | 270.545409 - 301.002219 | 63% | 65%
netbeans  | 520.560316 - 715.930400 | 370.356311 - 428.329652 | 55% | 82%
mozilla   | 739.803002 - 987.056093 | 505.152906 - 591.930683 | 57% | 80%

Raw data
--------

repo      alg lvl  .hg/store size  00manifest.d read       write

mercurial zlib  1      49,402,813     5,963,475   0.170159  53.250304
mercurial zlib  6      47,197,397     5,875,730   0.182820  56.264320
mercurial zlib  9      47,121,596     5,849,781   0.189219  56.293612

mercurial zstd  1      49,737,084     5,966,355   0.144127  40.877025
mercurial zstd  3      48,961,867     5,895,208   0.146376  42.268142
mercurial zstd  5      48,200,592     5,938,676   0.149624  43.162875
mercurial zstd 10      47,833,520     5,913,353   0.145185  44.012489
mercurial zstd 15      47,314,604     5,728,679   0.147686  45.677286
mercurial zstd 20      47,330,502     5,830,539   0.145789  45.025407
mercurial zstd 22      47,330,076     5,830,539   0.143996  44.690460


pypy      zlib  1     370,830,572    28,462,425   2.679217 460.721984
pypy      zlib  6     340,112,317    27,648,747   2.768691 467.537158
pypy      zlib  9     338,360,736    27,639,003   2.763495 476.589918

pypy      zstd  1     362,377,479    27,916,214   1.532317 270.545409
pypy      zstd  3     354,137,693    27,905,988   1.686718 294.951509
pypy      zstd  5     342,640,043    27,655,774   1.705044 301.002219
pypy      zstd 10     334,224,327    27,164,493   1.567287 285.186239
pypy      zstd 15     329,000,363    26,645,965   1.637729 299.561332
pypy      zstd 20     324,534,039    26,199,547   1.526813 302.149827
pypy      zstd 22     324,530,595    26,198,932   1.525718 307.821218


netbeans  zlib  1   1,281,847,810   165,495,457 122.477027 520.560316
netbeans  zlib  6   1,205,284,353   159,161,207 139.876147 715.930400
netbeans  zlib  9   1,197,135,671   155,034,586 141.620281 678.297064

netbeans  zstd  1   1,259,581,737   160,840,613  72.996346 370.356311
netbeans  zstd  3   1,232,978,122   157,691,551  81.622317 396.733087
netbeans  zstd  5   1,208,034,075   160,246,880  83.080549 364.342626
netbeans  zstd 10   1,188,624,176   156,083,417  79.323935 403.594602
netbeans  zstd 15   1,176,973,589   153,859,477  89.731560 428.329652
netbeans  zstd 20   1,162,958,258   151,147,535  82.842667 392.335349
netbeans  zstd 22   1,162,707,029   151,150,220  82.565695 402.840655


mozilla   zlib  1   2,775,497,186   298,527,987 147.867662 751.263721
mozilla   zlib  6   2,596,856,420   286,597,671 170.572118 987.056093
mozilla   zlib  9   2,587,542,494   287,018,264 163.622338 739.803002

mozilla   zstd  1   2,723,159,348   286,617,532  91.700995 570.042751
mozilla   zstd  3   2,665,055,001   286,152,013  95.240155 561.412805
mozilla   zstd  5   2,607,819,817   288,060,030 101.978048 505.152906
mozilla   zstd 10   2,558,761,085   283,967,648 104.113481 497.771202
mozilla   zstd 15   2,526,216,060   275,581,300 105.853099 591.930683
mozilla   zstd 20   2,485,114,806   266,478,859  95.268795 576.515389
mozilla   zstd 22   2,484,869,080   266,456,505  94.429282 572.785537

  $ hg init repo
  $ cd repo
  $ echo 123 > a
  $ echo 123 > c
  $ echo 123 > e
  $ hg add a c e
  $ hg commit -m "first" a c e

nothing changed

  $ hg revert
  abort: no files or directories specified
  (use --all to revert all files)
  [255]
  $ hg revert --all

Introduce some changes and revert them
--------------------------------------

  $ echo 123 > b

  $ hg status
  ? b
  $ echo 12 > c

  $ hg status
  M c
  ? b
  $ hg add b

  $ hg status
  M c
  A b
  $ hg rm a

  $ hg status
  M c
  A b
  R a

revert removal of a file

  $ hg revert a
  $ hg status
  M c
  A b

revert addition of a file

  $ hg revert b
  $ hg status
  M c
  ? b

revert modification of a file (--no-backup)

  $ hg revert --no-backup c
  $ hg status
  ? b

revert deletion (! status) of a added file
------------------------------------------

  $ hg add b

  $ hg status b
  A b
  $ rm b
  $ hg status b
  ! b
  $ hg revert -v b
  forgetting b
  $ hg status b
  b: * (glob)

  $ ls
  a
  c
  e

Test creation of backup (.orig) files
-------------------------------------

  $ echo z > e
  $ hg revert --all -v
  saving current version of e as e.orig
  reverting e

Test creation of backup (.orig) file in configured file location
----------------------------------------------------------------

  $ echo z > e
  $ hg revert --all -v --config 'ui.origbackuppath=.hg/origbackups'
  creating directory: $TESTTMP/repo/.hg/origbackups
  saving current version of e as .hg/origbackups/e
  reverting e
  $ rm -rf .hg/origbackups

revert on clean file (no change)
--------------------------------

  $ hg revert a
  no changes needed to a

revert on an untracked file
---------------------------

  $ echo q > q
  $ hg revert q
  file not managed: q
  $ rm q

revert on file that does not exists
-----------------------------------

  $ hg revert notfound
  notfound: no such file in rev 334a9e57682c
  $ touch d
  $ hg add d
  $ hg rm a
  $ hg commit -m "second"
  $ echo z > z
  $ hg add z
  $ hg st
  A z
  ? e.orig

revert to another revision (--rev)
----------------------------------

  $ hg revert --all -r0
  forgetting z
  removing d
  adding a

revert explicitly to parent (--rev)
-----------------------------------

  $ hg revert --all -rtip
  forgetting a
  undeleting d
  $ rm a *.orig

revert to another revision (--rev) and exact match
--------------------------------------------------

exact match are more silent

  $ hg revert -r0 a
  $ hg st a
  A a
  $ hg rm d
  $ hg st d
  R d

should keep d removed

  $ hg revert -r0 d
  no changes needed to d
  $ hg st d
  R d

  $ hg update -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

revert of exec bit
------------------

#if execbit
  $ chmod +x c
  $ hg revert --all
  reverting c

  $ test -x c || echo non-executable
  non-executable

  $ chmod +x c
  $ hg commit -m exe

  $ chmod -x c
  $ hg revert --all
  reverting c

  $ test -x c && echo executable
  executable
#endif

Test that files reverted to other than the parent are treated as
"modified", even if none of mode, size and timestamp of it isn't
changed on the filesystem (see also issue4583).

  $ echo 321 > e
  $ hg diff --git
  diff --git a/e b/e
  --- a/e
  +++ b/e
  @@ -1,1 +1,1 @@
  -123
  +321
  $ hg commit -m 'ambiguity from size'

  $ cat e
  321
  $ touch -t 200001010000 e
  $ hg debugrebuildstate

  $ cat >> .hg/hgrc <<EOF
  > [fakedirstatewritetime]
  > # emulate invoking dirstate.write() via repo.status()
  > # at 2000-01-01 00:00
  > fakenow = 200001010000
  > 
  > [extensions]
  > fakedirstatewritetime = $TESTDIR/fakedirstatewritetime.py
  > EOF
  $ hg revert -r 0 e
  $ cat >> .hg/hgrc <<EOF
  > [extensions]
  > fakedirstatewritetime = !
  > EOF

  $ cat e
  123
  $ touch -t 200001010000 e
  $ hg status -A e
  M e

  $ cd ..


Issue241: update and revert produces inconsistent repositories
--------------------------------------------------------------

  $ hg init a
  $ cd a
  $ echo a >> a
  $ hg commit -A -d '1 0' -m a
  adding a
  $ echo a >> a
  $ hg commit -d '2 0' -m a
  $ hg update 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ mkdir b
  $ echo b > b/b

call `hg revert` with no file specified
---------------------------------------

  $ hg revert -rtip
  abort: no files or directories specified
  (use --all to revert all files, or 'hg update 1' to update)
  [255]

call `hg revert` with -I
---------------------------

  $ echo a >> a
  $ hg revert -I a
  reverting a

call `hg revert` with -X
---------------------------

  $ echo a >> a
  $ hg revert -X d
  reverting a

call `hg revert` with --all
---------------------------

  $ hg revert --all -rtip
  reverting a
  $ rm *.orig

Issue332: confusing message when reverting directory
----------------------------------------------------

  $ hg ci -A -m b
  adding b/b
  created new head
  $ echo foobar > b/b
  $ mkdir newdir
  $ echo foo > newdir/newfile
  $ hg add newdir/newfile
  $ hg revert b newdir
  forgetting newdir/newfile
  reverting b/b
  $ echo foobar > b/b
  $ hg revert .
  reverting b/b

respects ui.relative-paths
--------------------------

  $ echo foo > newdir/newfile
  $ hg add newdir/newfile
  $ hg revert --all --cwd newdir
  forgetting newfile

  $ echo foo > newdir/newfile
  $ hg add newdir/newfile
  $ hg revert --all --cwd newdir --config ui.relative-paths=True
  forgetting newfile

  $ echo foo > newdir/newfile
  $ hg add newdir/newfile
  $ hg revert --all --cwd newdir --config ui.relative-paths=False
  forgetting newdir/newfile

reverting a rename target should revert the source
--------------------------------------------------

  $ hg mv a newa
  $ hg revert newa
  $ hg st a newa
  ? newa

Also true for move overwriting an existing file

  $ hg mv --force a b/b
  $ hg revert b/b
  $ hg status a b/b

  $ cd ..

  $ hg init ignored
  $ cd ignored
  $ echo '^ignored$' > .hgignore
  $ echo '^ignoreddir$' >> .hgignore
  $ echo '^removed$' >> .hgignore

  $ mkdir ignoreddir
  $ touch ignoreddir/file
  $ touch ignoreddir/removed
  $ touch ignored
  $ touch removed

4 ignored files (we will add/commit everything)

  $ hg st -A -X .hgignore
  I ignored
  I ignoreddir/file
  I ignoreddir/removed
  I removed
  $ hg ci -qAm 'add files' ignored ignoreddir/file ignoreddir/removed removed

  $ echo >> ignored
  $ echo >> ignoreddir/file
  $ hg rm removed ignoreddir/removed

should revert ignored* and undelete *removed
--------------------------------------------

  $ hg revert -a --no-backup
  reverting ignored
  reverting ignoreddir/file
  undeleting ignoreddir/removed
  undeleting removed
  $ hg st -mardi

  $ hg up -qC
  $ echo >> ignored
  $ hg rm removed

should silently revert the named files
--------------------------------------

  $ hg revert --no-backup ignored removed
  $ hg st -mardi

Reverting copy (issue3920)
--------------------------

someone set up us the copies

  $ rm .hgignore
  $ hg update -C
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg mv ignored allyour
  $ hg copy removed base
  $ hg commit -m rename

copies and renames, you have no chance to survive make your time (issue3920)

  $ hg update '.^'
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg revert -rtip -a
  removing ignored
  adding allyour
  adding base
  $ hg status -C
  A allyour
    ignored
  A base
    removed
  R ignored

Test revert of a file added by one side of the merge
====================================================

remove any pending change

  $ hg revert --all
  forgetting allyour
  forgetting base
  undeleting ignored
  $ hg purge --all --config extensions.purge=

Adds a new commit

  $ echo foo > newadd
  $ hg add newadd
  $ hg commit -m 'other adds'
  created new head


merge it with the other head

  $ hg merge # merge 1 into 2
  2 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg summary
  parent: 2:b8ec310b2d4e tip
   other adds
  parent: 1:f6180deb8fbe 
   rename
  branch: default
  commit: 2 modified, 1 removed (merge)
  update: (current)
  phases: 3 draft

clarifies who added what

  $ hg status
  M allyour
  M base
  R ignored
  $ hg status --change 'p1()'
  A newadd
  $ hg status --change 'p2()'
  A allyour
  A base
  R ignored

revert file added by p1() to p1() state
-----------------------------------------

  $ hg revert -r 'p1()' 'glob:newad?'
  $ hg status
  M allyour
  M base
  R ignored

revert file added by p1() to p2() state
------------------------------------------

  $ hg revert -r 'p2()' 'glob:newad?'
  removing newadd
  $ hg status
  M allyour
  M base
  R ignored
  R newadd

revert file added by p2() to p2() state
------------------------------------------

  $ hg revert -r 'p2()' 'glob:allyou?'
  $ hg status
  M allyour
  M base
  R ignored
  R newadd

revert file added by p2() to p1() state
------------------------------------------

  $ hg revert -r 'p1()' 'glob:allyou?'
  removing allyour
  $ hg status
  M base
  R allyour
  R ignored
  R newadd

Systematic behavior validation of most possible cases
=====================================================

This section tests most of the possible combinations of revision states and
working directory states. The number of possible cases is significant but they
but they all have a slightly different handling. So this section commits to
and testing all of them to allow safe refactoring of the revert code.

A python script is used to generate a file history for each combination of
states, on one side the content (or lack thereof) in two revisions, and
on the other side, the content and "tracked-ness" of the working directory. The
three states generated are:

- a "base" revision
- a "parent" revision
- the working directory (based on "parent")

The files generated have names of the form:

 <rev1-content>_<rev2-content>_<working-copy-content>-<tracked-ness>

All known states are not tested yet. See inline documentation for details.
Special cases from merge and rename are not tested by this section.

Write the python script to disk
-------------------------------

check list of planned files

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py filelist 2
  content1_content1_content1-tracked
  content1_content1_content1-untracked
  content1_content1_content3-tracked
  content1_content1_content3-untracked
  content1_content1_missing-tracked
  content1_content1_missing-untracked
  content1_content2_content1-tracked
  content1_content2_content1-untracked
  content1_content2_content2-tracked
  content1_content2_content2-untracked
  content1_content2_content3-tracked
  content1_content2_content3-untracked
  content1_content2_missing-tracked
  content1_content2_missing-untracked
  content1_missing_content1-tracked
  content1_missing_content1-untracked
  content1_missing_content3-tracked
  content1_missing_content3-untracked
  content1_missing_missing-tracked
  content1_missing_missing-untracked
  missing_content2_content2-tracked
  missing_content2_content2-untracked
  missing_content2_content3-tracked
  missing_content2_content3-untracked
  missing_content2_missing-tracked
  missing_content2_missing-untracked
  missing_missing_content3-tracked
  missing_missing_content3-untracked
  missing_missing_missing-tracked
  missing_missing_missing-untracked

Script to make a simple text version of the content
---------------------------------------------------

  $ cat << EOF >> dircontent.py
  > # generate a simple text view of the directory for easy comparison
  > from __future__ import print_function
  > import os
  > files = os.listdir('.')
  > files.sort()
  > for filename in files:
  >     if os.path.isdir(filename):
  >         continue
  >     content = open(filename).read()
  >     print('%-6s %s' % (content.strip(), filename))
  > EOF

Generate appropriate repo state
-------------------------------

  $ hg init revert-ref
  $ cd revert-ref

Generate base changeset

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py state 2 1
  $ hg addremove --similarity 0
  adding content1_content1_content1-tracked
  adding content1_content1_content1-untracked
  adding content1_content1_content3-tracked
  adding content1_content1_content3-untracked
  adding content1_content1_missing-tracked
  adding content1_content1_missing-untracked
  adding content1_content2_content1-tracked
  adding content1_content2_content1-untracked
  adding content1_content2_content2-tracked
  adding content1_content2_content2-untracked
  adding content1_content2_content3-tracked
  adding content1_content2_content3-untracked
  adding content1_content2_missing-tracked
  adding content1_content2_missing-untracked
  adding content1_missing_content1-tracked
  adding content1_missing_content1-untracked
  adding content1_missing_content3-tracked
  adding content1_missing_content3-untracked
  adding content1_missing_missing-tracked
  adding content1_missing_missing-untracked
  $ hg status
  A content1_content1_content1-tracked
  A content1_content1_content1-untracked
  A content1_content1_content3-tracked
  A content1_content1_content3-untracked
  A content1_content1_missing-tracked
  A content1_content1_missing-untracked
  A content1_content2_content1-tracked
  A content1_content2_content1-untracked
  A content1_content2_content2-tracked
  A content1_content2_content2-untracked
  A content1_content2_content3-tracked
  A content1_content2_content3-untracked
  A content1_content2_missing-tracked
  A content1_content2_missing-untracked
  A content1_missing_content1-tracked
  A content1_missing_content1-untracked
  A content1_missing_content3-tracked
  A content1_missing_content3-untracked
  A content1_missing_missing-tracked
  A content1_missing_missing-untracked
  $ hg commit -m 'base'

(create a simple text version of the content)

  $ "$PYTHON" ../dircontent.py > ../content-base.txt
  $ cat ../content-base.txt
  content1 content1_content1_content1-tracked
  content1 content1_content1_content1-untracked
  content1 content1_content1_content3-tracked
  content1 content1_content1_content3-untracked
  content1 content1_content1_missing-tracked
  content1 content1_content1_missing-untracked
  content1 content1_content2_content1-tracked
  content1 content1_content2_content1-untracked
  content1 content1_content2_content2-tracked
  content1 content1_content2_content2-untracked
  content1 content1_content2_content3-tracked
  content1 content1_content2_content3-untracked
  content1 content1_content2_missing-tracked
  content1 content1_content2_missing-untracked
  content1 content1_missing_content1-tracked
  content1 content1_missing_content1-untracked
  content1 content1_missing_content3-tracked
  content1 content1_missing_content3-untracked
  content1 content1_missing_missing-tracked
  content1 content1_missing_missing-untracked

Create parent changeset

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py state 2 2
  $ hg addremove --similarity 0
  removing content1_missing_content1-tracked
  removing content1_missing_content1-untracked
  removing content1_missing_content3-tracked
  removing content1_missing_content3-untracked
  removing content1_missing_missing-tracked
  removing content1_missing_missing-untracked
  adding missing_content2_content2-tracked
  adding missing_content2_content2-untracked
  adding missing_content2_content3-tracked
  adding missing_content2_content3-untracked
  adding missing_content2_missing-tracked
  adding missing_content2_missing-untracked
  $ hg status
  M content1_content2_content1-tracked
  M content1_content2_content1-untracked
  M content1_content2_content2-tracked
  M content1_content2_content2-untracked
  M content1_content2_content3-tracked
  M content1_content2_content3-untracked
  M content1_content2_missing-tracked
  M content1_content2_missing-untracked
  A missing_content2_content2-tracked
  A missing_content2_content2-untracked
  A missing_content2_content3-tracked
  A missing_content2_content3-untracked
  A missing_content2_missing-tracked
  A missing_content2_missing-untracked
  R content1_missing_content1-tracked
  R content1_missing_content1-untracked
  R content1_missing_content3-tracked
  R content1_missing_content3-untracked
  R content1_missing_missing-tracked
  R content1_missing_missing-untracked
  $ hg commit -m 'parent'

(create a simple text version of the content)

  $ "$PYTHON" ../dircontent.py > ../content-parent.txt
  $ cat ../content-parent.txt
  content1 content1_content1_content1-tracked
  content1 content1_content1_content1-untracked
  content1 content1_content1_content3-tracked
  content1 content1_content1_content3-untracked
  content1 content1_content1_missing-tracked
  content1 content1_content1_missing-untracked
  content2 content1_content2_content1-tracked
  content2 content1_content2_content1-untracked
  content2 content1_content2_content2-tracked
  content2 content1_content2_content2-untracked
  content2 content1_content2_content3-tracked
  content2 content1_content2_content3-untracked
  content2 content1_content2_missing-tracked
  content2 content1_content2_missing-untracked
  content2 missing_content2_content2-tracked
  content2 missing_content2_content2-untracked
  content2 missing_content2_content3-tracked
  content2 missing_content2_content3-untracked
  content2 missing_content2_missing-tracked
  content2 missing_content2_missing-untracked

Setup working directory

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py state 2 wc
  $ hg addremove --similarity 0
  adding content1_missing_content1-tracked
  adding content1_missing_content1-untracked
  adding content1_missing_content3-tracked
  adding content1_missing_content3-untracked
  adding content1_missing_missing-tracked
  adding content1_missing_missing-untracked
  adding missing_missing_content3-tracked
  adding missing_missing_content3-untracked
  adding missing_missing_missing-tracked
  adding missing_missing_missing-untracked
  $ hg forget *_*_*-untracked
  $ rm *_*_missing-*
  $ hg status
  M content1_content1_content3-tracked
  M content1_content2_content1-tracked
  M content1_content2_content3-tracked
  M missing_content2_content3-tracked
  A content1_missing_content1-tracked
  A content1_missing_content3-tracked
  A missing_missing_content3-tracked
  R content1_content1_content1-untracked
  R content1_content1_content3-untracked
  R content1_content1_missing-untracked
  R content1_content2_content1-untracked
  R content1_content2_content2-untracked
  R content1_content2_content3-untracked
  R content1_content2_missing-untracked
  R missing_content2_content2-untracked
  R missing_content2_content3-untracked
  R missing_content2_missing-untracked
  ! content1_content1_missing-tracked
  ! content1_content2_missing-tracked
  ! content1_missing_missing-tracked
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked
  ? content1_missing_content1-untracked
  ? content1_missing_content3-untracked
  ? missing_missing_content3-untracked

  $ hg status --rev 'desc("base")'
  M content1_content1_content3-tracked
  M content1_content2_content2-tracked
  M content1_content2_content3-tracked
  M content1_missing_content3-tracked
  A missing_content2_content2-tracked
  A missing_content2_content3-tracked
  A missing_missing_content3-tracked
  R content1_content1_content1-untracked
  R content1_content1_content3-untracked
  R content1_content1_missing-untracked
  R content1_content2_content1-untracked
  R content1_content2_content2-untracked
  R content1_content2_content3-untracked
  R content1_content2_missing-untracked
  R content1_missing_content1-untracked
  R content1_missing_content3-untracked
  R content1_missing_missing-untracked
  ! content1_content1_missing-tracked
  ! content1_content2_missing-tracked
  ! content1_missing_missing-tracked
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked
  ? missing_missing_content3-untracked

(create a simple text version of the content)

  $ "$PYTHON" ../dircontent.py > ../content-wc.txt
  $ cat ../content-wc.txt
  content1 content1_content1_content1-tracked
  content1 content1_content1_content1-untracked
  content3 content1_content1_content3-tracked
  content3 content1_content1_content3-untracked
  content1 content1_content2_content1-tracked
  content1 content1_content2_content1-untracked
  content2 content1_content2_content2-tracked
  content2 content1_content2_content2-untracked
  content3 content1_content2_content3-tracked
  content3 content1_content2_content3-untracked
  content1 content1_missing_content1-tracked
  content1 content1_missing_content1-untracked
  content3 content1_missing_content3-tracked
  content3 content1_missing_content3-untracked
  content2 missing_content2_content2-tracked
  content2 missing_content2_content2-untracked
  content3 missing_content2_content3-tracked
  content3 missing_content2_content3-untracked
  content3 missing_missing_content3-tracked
  content3 missing_missing_content3-untracked

  $ cd ..

Test revert --all to parent content
-----------------------------------

(setup from reference repo)

  $ cp -R revert-ref revert-parent-all
  $ cd revert-parent-all

check revert output

  $ hg revert --all
  forgetting content1_missing_content1-tracked
  forgetting content1_missing_content3-tracked
  forgetting content1_missing_missing-tracked
  forgetting missing_missing_content3-tracked
  forgetting missing_missing_missing-tracked
  reverting content1_content1_content3-tracked
  reverting content1_content1_missing-tracked
  reverting content1_content2_content1-tracked
  reverting content1_content2_content3-tracked
  reverting content1_content2_missing-tracked
  reverting missing_content2_content3-tracked
  reverting missing_content2_missing-tracked
  undeleting content1_content1_content1-untracked
  undeleting content1_content1_content3-untracked
  undeleting content1_content1_missing-untracked
  undeleting content1_content2_content1-untracked
  undeleting content1_content2_content2-untracked
  undeleting content1_content2_content3-untracked
  undeleting content1_content2_missing-untracked
  undeleting missing_content2_content2-untracked
  undeleting missing_content2_content3-untracked
  undeleting missing_content2_missing-untracked

Compare resulting directory with revert target.

The diff is filtered to include change only. The only difference should be
additional `.orig` backup file when applicable.

  $ "$PYTHON" ../dircontent.py > ../content-parent-all.txt
  $ cd ..
  $ diff -U 0 -- content-parent.txt content-parent-all.txt | grep _
  +content3 content1_content1_content3-tracked.orig
  +content3 content1_content1_content3-untracked.orig
  +content1 content1_content2_content1-tracked.orig
  +content1 content1_content2_content1-untracked.orig
  +content3 content1_content2_content3-tracked.orig
  +content3 content1_content2_content3-untracked.orig
  +content1 content1_missing_content1-tracked
  +content1 content1_missing_content1-untracked
  +content3 content1_missing_content3-tracked
  +content3 content1_missing_content3-untracked
  +content3 missing_content2_content3-tracked.orig
  +content3 missing_content2_content3-untracked.orig
  +content3 missing_missing_content3-tracked
  +content3 missing_missing_content3-untracked

Test revert --all to "base" content
-----------------------------------

(setup from reference repo)

  $ cp -R revert-ref revert-base-all
  $ cd revert-base-all

check revert output

  $ hg revert --all --rev 'desc(base)'
  forgetting missing_missing_content3-tracked
  forgetting missing_missing_missing-tracked
  removing missing_content2_content2-tracked
  removing missing_content2_content3-tracked
  removing missing_content2_missing-tracked
  reverting content1_content1_content3-tracked
  reverting content1_content1_missing-tracked
  reverting content1_content2_content2-tracked
  reverting content1_content2_content3-tracked
  reverting content1_content2_missing-tracked
  reverting content1_missing_content3-tracked
  reverting content1_missing_missing-tracked
  adding content1_missing_content1-untracked
  adding content1_missing_content3-untracked
  adding content1_missing_missing-untracked
  undeleting content1_content1_content1-untracked
  undeleting content1_content1_content3-untracked
  undeleting content1_content1_missing-untracked
  undeleting content1_content2_content1-untracked
  undeleting content1_content2_content2-untracked
  undeleting content1_content2_content3-untracked
  undeleting content1_content2_missing-untracked

Compare resulting directory with revert target.

The diff is filtered to include change only. The only difference should be
additional `.orig` backup file when applicable.

  $ "$PYTHON" ../dircontent.py > ../content-base-all.txt
  $ cd ..
  $ diff -U 0 -- content-base.txt content-base-all.txt | grep _
  +content3 content1_content1_content3-tracked.orig
  +content3 content1_content1_content3-untracked.orig
  +content2 content1_content2_content2-untracked.orig
  +content3 content1_content2_content3-tracked.orig
  +content3 content1_content2_content3-untracked.orig
  +content3 content1_missing_content3-tracked.orig
  +content3 content1_missing_content3-untracked.orig
  +content2 missing_content2_content2-untracked
  +content3 missing_content2_content3-tracked.orig
  +content3 missing_content2_content3-untracked
  +content3 missing_missing_content3-tracked
  +content3 missing_missing_content3-untracked

Test revert to parent content with explicit file name
-----------------------------------------------------

(setup from reference repo)

  $ cp -R revert-ref revert-parent-explicit
  $ cd revert-parent-explicit

revert all files individually and check the output
(output is expected to be different than in the --all case)

  $ for file in `"$PYTHON" $TESTDIR/generate-working-copy-states.py filelist 2`; do
  >   echo '### revert for:' $file;
  >   hg revert $file;
  >   echo
  > done
  ### revert for: content1_content1_content1-tracked
  no changes needed to content1_content1_content1-tracked
  
  ### revert for: content1_content1_content1-untracked
  
  ### revert for: content1_content1_content3-tracked
  
  ### revert for: content1_content1_content3-untracked
  
  ### revert for: content1_content1_missing-tracked
  
  ### revert for: content1_content1_missing-untracked
  
  ### revert for: content1_content2_content1-tracked
  
  ### revert for: content1_content2_content1-untracked
  
  ### revert for: content1_content2_content2-tracked
  no changes needed to content1_content2_content2-tracked
  
  ### revert for: content1_content2_content2-untracked
  
  ### revert for: content1_content2_content3-tracked
  
  ### revert for: content1_content2_content3-untracked
  
  ### revert for: content1_content2_missing-tracked
  
  ### revert for: content1_content2_missing-untracked
  
  ### revert for: content1_missing_content1-tracked
  
  ### revert for: content1_missing_content1-untracked
  file not managed: content1_missing_content1-untracked
  
  ### revert for: content1_missing_content3-tracked
  
  ### revert for: content1_missing_content3-untracked
  file not managed: content1_missing_content3-untracked
  
  ### revert for: content1_missing_missing-tracked
  
  ### revert for: content1_missing_missing-untracked
  content1_missing_missing-untracked: no such file in rev * (glob)
  
  ### revert for: missing_content2_content2-tracked
  no changes needed to missing_content2_content2-tracked
  
  ### revert for: missing_content2_content2-untracked
  
  ### revert for: missing_content2_content3-tracked
  
  ### revert for: missing_content2_content3-untracked
  
  ### revert for: missing_content2_missing-tracked
  
  ### revert for: missing_content2_missing-untracked
  
  ### revert for: missing_missing_content3-tracked
  
  ### revert for: missing_missing_content3-untracked
  file not managed: missing_missing_content3-untracked
  
  ### revert for: missing_missing_missing-tracked
  
  ### revert for: missing_missing_missing-untracked
  missing_missing_missing-untracked: no such file in rev * (glob)
  

check resulting directory against the --all run
(There should be no difference)

  $ "$PYTHON" ../dircontent.py > ../content-parent-explicit.txt
  $ cd ..
  $ diff -U 0 -- content-parent-all.txt content-parent-explicit.txt | grep _
  [1]

Test revert to "base" content with explicit file name
-----------------------------------------------------

(setup from reference repo)

  $ cp -R revert-ref revert-base-explicit
  $ cd revert-base-explicit

revert all files individually and check the output
(output is expected to be different than in the --all case)

  $ for file in `"$PYTHON" $TESTDIR/generate-working-copy-states.py filelist 2`; do
  >   echo '### revert for:' $file;
  >   hg revert $file --rev 'desc(base)';
  >   echo
  > done
  ### revert for: content1_content1_content1-tracked
  no changes needed to content1_content1_content1-tracked
  
  ### revert for: content1_content1_content1-untracked
  
  ### revert for: content1_content1_content3-tracked
  
  ### revert for: content1_content1_content3-untracked
  
  ### revert for: content1_content1_missing-tracked
  
  ### revert for: content1_content1_missing-untracked
  
  ### revert for: content1_content2_content1-tracked
  no changes needed to content1_content2_content1-tracked
  
  ### revert for: content1_content2_content1-untracked
  
  ### revert for: content1_content2_content2-tracked
  
  ### revert for: content1_content2_content2-untracked
  
  ### revert for: content1_content2_content3-tracked
  
  ### revert for: content1_content2_content3-untracked
  
  ### revert for: content1_content2_missing-tracked
  
  ### revert for: content1_content2_missing-untracked
  
  ### revert for: content1_missing_content1-tracked
  no changes needed to content1_missing_content1-tracked
  
  ### revert for: content1_missing_content1-untracked
  
  ### revert for: content1_missing_content3-tracked
  
  ### revert for: content1_missing_content3-untracked
  
  ### revert for: content1_missing_missing-tracked
  
  ### revert for: content1_missing_missing-untracked
  
  ### revert for: missing_content2_content2-tracked
  
  ### revert for: missing_content2_content2-untracked
  no changes needed to missing_content2_content2-untracked
  
  ### revert for: missing_content2_content3-tracked
  
  ### revert for: missing_content2_content3-untracked
  no changes needed to missing_content2_content3-untracked
  
  ### revert for: missing_content2_missing-tracked
  
  ### revert for: missing_content2_missing-untracked
  no changes needed to missing_content2_missing-untracked
  
  ### revert for: missing_missing_content3-tracked
  
  ### revert for: missing_missing_content3-untracked
  file not managed: missing_missing_content3-untracked
  
  ### revert for: missing_missing_missing-tracked
  
  ### revert for: missing_missing_missing-untracked
  missing_missing_missing-untracked: no such file in rev * (glob)
  

check resulting directory against the --all run
(There should be no difference)

  $ "$PYTHON" ../dircontent.py > ../content-base-explicit.txt
  $ cd ..
  $ diff -U 0 -- content-base-all.txt content-base-explicit.txt | grep _
  [1]

Revert to an ancestor of P2 during a merge (issue5052)
-----------------------------------------------------

(prepare the repository)

  $ hg init issue5052
  $ cd issue5052
  $ echo '.\.orig' > .hgignore
  $ echo 0 > root
  $ hg ci -qAm C0
  $ echo 0 > A
  $ hg ci -qAm C1
  $ echo 1 >> A
  $ hg ci -qm C2
  $ hg up -q 0
  $ echo 1 > B
  $ hg ci -qAm C3
  $ hg status --rev 'ancestor(.,2)' --rev 2
  A A
  $ hg log -G -T '{rev} ({files})\n'
  @  3 (B)
  |
  | o  2 (A)
  | |
  | o  1 (A)
  |/
  o  0 (.hgignore root)
  

actual tests: reverting to something else than a merge parent

  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg status --rev 'p1()'
  M A
  $ hg status --rev 'p2()'
  A B
  $ hg status --rev '1'
  M A
  A B
  $ hg revert --rev 1 --all
  removing B
  reverting A
  $ hg status --rev 1

From the other parents

  $ hg up -C 'p2()'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg status --rev 'p1()'
  M B
  $ hg status --rev 'p2()'
  A A
  $ hg status --rev '1'
  M A
  A B
  $ hg revert --rev 1 --all
  removing B
  reverting A
  $ hg status --rev 1

  $ cd ..