view tests/test-journal.t @ 41247:a89b20a49c13

rust-cpython: using MissingAncestors from Python code

As precedently done with LazyAncestors on cpython.rs, we test for the
presence of the 'rustext' module.

incrementalmissingrevs() has two callers within the Mercurial core:
`setdiscovery.partialdiscovery` and the `only()` revset.

This move shows a significant discovery performance improvement
in cases where the baseline is slow: using perfdiscovery on the PyPy
repos, prepared with `contrib/discovery-helper <repo> 50 100`, we
get averaged medians of 403ms with the Rust version vs 742ms without
(about 45% better).

But there are still indications that performance can be worse in cases
the baseline is fast, possibly due to the conversion from Python to
Rust and back becoming the bottleneck. We could measure this on
mozilla-central in cases were the delta is just a few changesets.
This requires confirmation, but if that's the reason, then an
upcoming `partialdiscovery` fully in Rust should solve the problem.

Differential Revision: https://phab.mercurial-scm.org/D5551

Tests for the journal extension; records bookmark locations.

  $ cat >> testmocks.py << EOF
  > # mock out procutil.getuser() and util.makedate() to supply testable values
  > import os
  > from mercurial import pycompat, util
  > from mercurial.utils import dateutil, procutil
  > def mockgetuser():
  >     return b'foobar'
  > 
  > def mockmakedate():
  >     filename = os.path.join(os.environ['TESTTMP'], 'testtime')
  >     try:
  >         with open(filename, 'rb') as timef:
  >             time = float(timef.read()) + 1
  >     except IOError:
  >         time = 0.0
  >     with open(filename, 'wb') as timef:
  >         timef.write(pycompat.bytestr(time))
  >     return (time, 0)
  > 
  > procutil.getuser = mockgetuser
  > dateutil.makedate = mockmakedate
  > EOF

  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > journal=
  > testmocks=`pwd`/testmocks.py
  > EOF

Setup repo

  $ hg init repo
  $ cd repo

Test empty journal

  $ hg journal
  previous locations of '.':
  no recorded locations
  $ hg journal foo
  previous locations of 'foo':
  no recorded locations

Test that working copy changes are tracked

  $ echo a > a
  $ hg commit -Aqm a
  $ hg journal
  previous locations of '.':
  cb9a9f314b8b  commit -Aqm a
  $ echo b > a
  $ hg commit -Aqm b
  $ hg journal
  previous locations of '.':
  1e6c11564562  commit -Aqm b
  cb9a9f314b8b  commit -Aqm a
  $ hg up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg journal
  previous locations of '.':
  cb9a9f314b8b  up 0
  1e6c11564562  commit -Aqm b
  cb9a9f314b8b  commit -Aqm a

Test that bookmarks are tracked

  $ hg book -r tip bar
  $ hg journal bar
  previous locations of 'bar':
  1e6c11564562  book -r tip bar
  $ hg book -f bar
  $ hg journal bar
  previous locations of 'bar':
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar
  $ hg up
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updating bookmark bar
  $ hg journal bar
  previous locations of 'bar':
  1e6c11564562  up
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar

Test that bookmarks and working copy tracking is not mixed

  $ hg journal
  previous locations of '.':
  1e6c11564562  up
  cb9a9f314b8b  up 0
  1e6c11564562  commit -Aqm b
  cb9a9f314b8b  commit -Aqm a

Test that you can list all entries as well as limit the list or filter on them

  $ hg book -r tip baz
  $ hg journal --all
  previous locations of the working copy and bookmarks:
  1e6c11564562  baz       book -r tip baz
  1e6c11564562  bar       up
  1e6c11564562  .         up
  cb9a9f314b8b  bar       book -f bar
  1e6c11564562  bar       book -r tip bar
  cb9a9f314b8b  .         up 0
  1e6c11564562  .         commit -Aqm b
  cb9a9f314b8b  .         commit -Aqm a
  $ hg journal --limit 2
  previous locations of '.':
  1e6c11564562  up
  cb9a9f314b8b  up 0
  $ hg journal bar
  previous locations of 'bar':
  1e6c11564562  up
  cb9a9f314b8b  book -f bar
  1e6c11564562  book -r tip bar
  $ hg journal foo
  previous locations of 'foo':
  no recorded locations
  $ hg journal .
  previous locations of '.':
  1e6c11564562  up
  cb9a9f314b8b  up 0
  1e6c11564562  commit -Aqm b
  cb9a9f314b8b  commit -Aqm a
  $ hg journal "re:ba."
  previous locations of 're:ba.':
  1e6c11564562  baz       book -r tip baz
  1e6c11564562  bar       up
  cb9a9f314b8b  bar       book -f bar
  1e6c11564562  bar       book -r tip bar

Test that verbose, JSON, template and commit output work

  $ hg journal --verbose --all
  previous locations of the working copy and bookmarks:
  000000000000 -> 1e6c11564562 foobar    baz      1970-01-01 00:00 +0000  book -r tip baz
  cb9a9f314b8b -> 1e6c11564562 foobar    bar      1970-01-01 00:00 +0000  up
  cb9a9f314b8b -> 1e6c11564562 foobar    .        1970-01-01 00:00 +0000  up
  1e6c11564562 -> cb9a9f314b8b foobar    bar      1970-01-01 00:00 +0000  book -f bar
  000000000000 -> 1e6c11564562 foobar    bar      1970-01-01 00:00 +0000  book -r tip bar
  1e6c11564562 -> cb9a9f314b8b foobar    .        1970-01-01 00:00 +0000  up 0
  cb9a9f314b8b -> 1e6c11564562 foobar    .        1970-01-01 00:00 +0000  commit -Aqm b
  000000000000 -> cb9a9f314b8b foobar    .        1970-01-01 00:00 +0000  commit -Aqm a
  $ hg journal --verbose -Tjson
  [
   {
    "command": "up",
    "date": [5, 0],
    "name": ".",
    "newnodes": ["1e6c11564562b4ed919baca798bc4338bd299d6a"],
    "oldnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "user": "foobar"
   },
   {
    "command": "up 0",
    "date": [2, 0],
    "name": ".",
    "newnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "oldnodes": ["1e6c11564562b4ed919baca798bc4338bd299d6a"],
    "user": "foobar"
   },
   {
    "command": "commit -Aqm b",
    "date": [1, 0],
    "name": ".",
    "newnodes": ["1e6c11564562b4ed919baca798bc4338bd299d6a"],
    "oldnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "user": "foobar"
   },
   {
    "command": "commit -Aqm a",
    "date": [0, 0],
    "name": ".",
    "newnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "oldnodes": ["0000000000000000000000000000000000000000"],
    "user": "foobar"
   }
  ]

  $ cat <<EOF >> $HGRCPATH
  > [templates]
  > j = "{oldnodes % '{node|upper}'} -> {newnodes % '{node|upper}'}
  >      - user: {user}
  >      - command: {command}
  >      - date: {date|rfc3339date}
  >      - newnodes: {newnodes}
  >      - oldnodes: {oldnodes}
  >      "
  > EOF
  $ hg journal -Tj -l1
  previous locations of '.':
  CB9A9F314B8B07BA71012FCDBC544B5A4D82FF5B -> 1E6C11564562B4ED919BACA798BC4338BD299D6A
  - user: foobar
  - command: up
  - date: 1970-01-01T00:00:05+00:00
  - newnodes: 1e6c11564562b4ed919baca798bc4338bd299d6a
  - oldnodes: cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b

  $ hg journal --commit
  previous locations of '.':
  1e6c11564562  up
  changeset:   1:1e6c11564562
  bookmark:    bar
  bookmark:    baz
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  
  cb9a9f314b8b  up 0
  changeset:   0:cb9a9f314b8b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a
  
  1e6c11564562  commit -Aqm b
  changeset:   1:1e6c11564562
  bookmark:    bar
  bookmark:    baz
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  
  cb9a9f314b8b  commit -Aqm a
  changeset:   0:cb9a9f314b8b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a
  

  $ hg journal --commit -Tjson
  [
   {
    "changesets": [{"bookmarks": ["bar", "baz"], "branch": "default", "date": [0, 0], "desc": "b", "node": "1e6c11564562b4ed919baca798bc4338bd299d6a", "parents": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"], "phase": "draft", "rev": 1, "tags": ["tip"], "user": "test"}],
    "command": "up",
    "date": [5, 0],
    "name": ".",
    "newnodes": ["1e6c11564562b4ed919baca798bc4338bd299d6a"],
    "oldnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "user": "foobar"
   },
   {
    "changesets": [{"bookmarks": [], "branch": "default", "date": [0, 0], "desc": "a", "node": "cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b", "parents": ["0000000000000000000000000000000000000000"], "phase": "draft", "rev": 0, "tags": [], "user": "test"}],
    "command": "up 0",
    "date": [2, 0],
    "name": ".",
    "newnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "oldnodes": ["1e6c11564562b4ed919baca798bc4338bd299d6a"],
    "user": "foobar"
   },
   {
    "changesets": [{"bookmarks": ["bar", "baz"], "branch": "default", "date": [0, 0], "desc": "b", "node": "1e6c11564562b4ed919baca798bc4338bd299d6a", "parents": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"], "phase": "draft", "rev": 1, "tags": ["tip"], "user": "test"}],
    "command": "commit -Aqm b",
    "date": [1, 0],
    "name": ".",
    "newnodes": ["1e6c11564562b4ed919baca798bc4338bd299d6a"],
    "oldnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "user": "foobar"
   },
   {
    "changesets": [{"bookmarks": [], "branch": "default", "date": [0, 0], "desc": "a", "node": "cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b", "parents": ["0000000000000000000000000000000000000000"], "phase": "draft", "rev": 0, "tags": [], "user": "test"}],
    "command": "commit -Aqm a",
    "date": [0, 0],
    "name": ".",
    "newnodes": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
    "oldnodes": ["0000000000000000000000000000000000000000"],
    "user": "foobar"
   }
  ]

  $ hg journal --commit \
  > -T'command: {command}\n{changesets % " rev: {rev}\n children: {children}\n"}'
  previous locations of '.':
  command: up
   rev: 1
   children: 
  command: up 0
   rev: 0
   children: 1:1e6c11564562
  command: commit -Aqm b
   rev: 1
   children: 
  command: commit -Aqm a
   rev: 0
   children: 1:1e6c11564562

Test for behaviour on unexpected storage version information

  $ printf '42\0' > .hg/namejournal
  $ hg journal
  previous locations of '.':
  abort: unknown journal file version '42'
  [255]
  $ hg book -r tip doomed
  unsupported journal file version '42'