view tests/test-status.t @ 33289:abd7dedbaa36

sparse: vendor Facebook-developed extension

Facebook has developed an extension to enable "sparse" checkouts -
a working directory with a subset of files. This feature is a critical
component in enabling repositories to scale to infinite number of
files while retaining reasonable performance. It's worth noting
that sparse checkout is only one possible solution to this problem:
another is virtual filesystems that realize files on first access.
But given that virtual filesystems may not be accessible to all
users, sparse checkout is necessary as a fallback.

Per mailing list discussion at
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-March/095868.html
we want to add sparse checkout to the Mercurial distribution via
roughly the following mechanism:

1. Vendor extension as-is with minimal modifications (this patch)
2. Refactor extension so it is more clearly experimental and inline
   with Mercurial practices
3. Move code from extension into core where possible
4. Drop experimental labeling and/or move feature into core
   after sign-off from narrow clone feature owners

This commit essentially copies the sparse extension and tests
from revision 71e0a2aeca92a4078fe1b8c76e32c88ff1929737 of the
https://bitbucket.org/facebook/hg-experimental repository.

A list of modifications made as part of vendoring is as follows:

* "EXPERIMENTAL" added to module docstring
* Imports were changed to match Mercurial style conventions
* "testedwith" value was updated to core Mercurial special value and
  comment boilerplate was inserted
* A "clone_sparse" function was renamed to "clonesparse" to appease
  the style checker
* Paths to the sparse extension in tests reflect built-in location
* test-sparse-extensions.t was renamed to test-sparse-fsmonitor.t
  and references to "simplecache" were removed. The test always skips
  because it isn't trivial to run it given the way we currently run
  fsmonitor tests
* A double empty line was removed from test-sparse-profiles.t

There are aspects of the added code that are obviously not ideal.
The goal is to make a minimal number of modifications as part of
the vendoring to make it easier to track changes from the original
implementation. Refactoring will occur in subsequent patches.

  $ hg init repo1
  $ cd repo1
  $ mkdir a b a/1 b/1 b/2
  $ touch in_root a/in_a b/in_b a/1/in_a_1 b/1/in_b_1 b/2/in_b_2

hg status in repo root:

  $ hg status
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root

hg status . in repo root:

  $ hg status .
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root

  $ hg status --cwd a
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root
  $ hg status --cwd a .
  ? 1/in_a_1
  ? in_a
  $ hg status --cwd a ..
  ? 1/in_a_1
  ? in_a
  ? ../b/1/in_b_1
  ? ../b/2/in_b_2
  ? ../b/in_b
  ? ../in_root

  $ hg status --cwd b
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root
  $ hg status --cwd b .
  ? 1/in_b_1
  ? 2/in_b_2
  ? in_b
  $ hg status --cwd b ..
  ? ../a/1/in_a_1
  ? ../a/in_a
  ? 1/in_b_1
  ? 2/in_b_2
  ? in_b
  ? ../in_root

  $ hg status --cwd a/1
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root
  $ hg status --cwd a/1 .
  ? in_a_1
  $ hg status --cwd a/1 ..
  ? in_a_1
  ? ../in_a

  $ hg status --cwd b/1
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root
  $ hg status --cwd b/1 .
  ? in_b_1
  $ hg status --cwd b/1 ..
  ? in_b_1
  ? ../2/in_b_2
  ? ../in_b

  $ hg status --cwd b/2
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root
  $ hg status --cwd b/2 .
  ? in_b_2
  $ hg status --cwd b/2 ..
  ? ../1/in_b_1
  ? in_b_2
  ? ../in_b

combining patterns with root and patterns without a root works

  $ hg st a/in_a re:.*b$
  ? a/in_a
  ? b/in_b

tweaking defaults works
  $ hg status --cwd a --config ui.tweakdefaults=yes
  ? 1/in_a_1
  ? in_a
  ? ../b/1/in_b_1
  ? ../b/2/in_b_2
  ? ../b/in_b
  ? ../in_root
  $ HGPLAIN=1 hg status --cwd a --config ui.tweakdefaults=yes
  ? a/1/in_a_1 (glob)
  ? a/in_a (glob)
  ? b/1/in_b_1 (glob)
  ? b/2/in_b_2 (glob)
  ? b/in_b (glob)
  ? in_root
  $ HGPLAINEXCEPT=tweakdefaults hg status --cwd a --config ui.tweakdefaults=yes
  ? 1/in_a_1 (glob)
  ? in_a
  ? ../b/1/in_b_1 (glob)
  ? ../b/2/in_b_2 (glob)
  ? ../b/in_b (glob)
  ? ../in_root (glob)

relative paths can be requested

  $ cat >> $HGRCPATH <<EOF
  > [commands]
  > status.relative = True
  > EOF
  $ hg status --cwd a
  ? 1/in_a_1
  ? in_a
  ? ../b/1/in_b_1
  ? ../b/2/in_b_2
  ? ../b/in_b
  ? ../in_root
  $ HGPLAIN=1 hg status --cwd a
  ? a/1/in_a_1 (glob)
  ? a/in_a (glob)
  ? b/1/in_b_1 (glob)
  ? b/2/in_b_2 (glob)
  ? b/in_b (glob)
  ? in_root

if relative paths are explicitly off, tweakdefaults doesn't change it
  $ cat >> $HGRCPATH <<EOF
  > [commands]
  > status.relative = False
  > EOF
  $ hg status --cwd a --config ui.tweakdefaults=yes
  ? a/1/in_a_1
  ? a/in_a
  ? b/1/in_b_1
  ? b/2/in_b_2
  ? b/in_b
  ? in_root

  $ cd ..

  $ hg init repo2
  $ cd repo2
  $ touch modified removed deleted ignored
  $ echo "^ignored$" > .hgignore
  $ hg ci -A -m 'initial checkin'
  adding .hgignore
  adding deleted
  adding modified
  adding removed
  $ touch modified added unknown ignored
  $ hg add added
  $ hg remove removed
  $ rm deleted

hg status:

  $ hg status
  A added
  R removed
  ! deleted
  ? unknown

hg status modified added removed deleted unknown never-existed ignored:

  $ hg status modified added removed deleted unknown never-existed ignored
  never-existed: * (glob)
  A added
  R removed
  ! deleted
  ? unknown

  $ hg copy modified copied

hg status -C:

  $ hg status -C
  A added
  A copied
    modified
  R removed
  ! deleted
  ? unknown

hg status -A:

  $ hg status -A
  A added
  A copied
    modified
  R removed
  ! deleted
  ? unknown
  I ignored
  C .hgignore
  C modified

  $ hg status -A -Tjson
  [
   {
    "path": "added",
    "status": "A"
   },
   {
    "copy": "modified",
    "path": "copied",
    "status": "A"
   },
   {
    "path": "removed",
    "status": "R"
   },
   {
    "path": "deleted",
    "status": "!"
   },
   {
    "path": "unknown",
    "status": "?"
   },
   {
    "path": "ignored",
    "status": "I"
   },
   {
    "path": ".hgignore",
    "status": "C"
   },
   {
    "path": "modified",
    "status": "C"
   }
  ]

  $ hg status -A -Tpickle > pickle
  >>> from __future__ import print_function
  >>> import pickle
  >>> print(sorted((x['status'], x['path']) for x in pickle.load(open("pickle"))))
  [('!', 'deleted'), ('?', 'pickle'), ('?', 'unknown'), ('A', 'added'), ('A', 'copied'), ('C', '.hgignore'), ('C', 'modified'), ('I', 'ignored'), ('R', 'removed')]
  $ rm pickle

  $ echo "^ignoreddir$" > .hgignore
  $ mkdir ignoreddir
  $ touch ignoreddir/file

Test templater support:

  $ hg status -AT "[{status}]\t{if(copy, '{copy} -> ')}{path}\n"
  [M]	.hgignore
  [A]	added
  [A]	modified -> copied
  [R]	removed
  [!]	deleted
  [?]	ignored
  [?]	unknown
  [I]	ignoreddir/file
  [C]	modified
  $ hg status -AT default
  M .hgignore
  A added
  A copied
    modified
  R removed
  ! deleted
  ? ignored
  ? unknown
  I ignoreddir/file
  C modified
  $ hg status -T compact
  abort: "status" not in template map
  [255]

hg status ignoreddir/file:

  $ hg status ignoreddir/file

hg status -i ignoreddir/file:

  $ hg status -i ignoreddir/file
  I ignoreddir/file
  $ cd ..

Check 'status -q' and some combinations

  $ hg init repo3
  $ cd repo3
  $ touch modified removed deleted ignored
  $ echo "^ignored$" > .hgignore
  $ hg commit -A -m 'initial checkin'
  adding .hgignore
  adding deleted
  adding modified
  adding removed
  $ touch added unknown ignored
  $ hg add added
  $ echo "test" >> modified
  $ hg remove removed
  $ rm deleted
  $ hg copy modified copied

Specify working directory revision explicitly, that should be the same as
"hg status"

  $ hg status --change "wdir()"
  M modified
  A added
  A copied
  R removed
  ! deleted
  ? unknown

Run status with 2 different flags.
Check if result is the same or different.
If result is not as expected, raise error

  $ assert() {
  >     hg status $1 > ../a
  >     hg status $2 > ../b
  >     if diff ../a ../b > /dev/null; then
  >         out=0
  >     else
  >         out=1
  >     fi
  >     if [ $3 -eq 0 ]; then
  >         df="same"
  >     else
  >         df="different"
  >     fi
  >     if [ $out -ne $3 ]; then
  >         echo "Error on $1 and $2, should be $df."
  >     fi
  > }

Assert flag1 flag2 [0-same | 1-different]

  $ assert "-q" "-mard"      0
  $ assert "-A" "-marduicC"  0
  $ assert "-qA" "-mardcC"   0
  $ assert "-qAui" "-A"      0
  $ assert "-qAu" "-marducC" 0
  $ assert "-qAi" "-mardicC" 0
  $ assert "-qu" "-u"        0
  $ assert "-q" "-u"         1
  $ assert "-m" "-a"         1
  $ assert "-r" "-d"         1
  $ cd ..

  $ hg init repo4
  $ cd repo4
  $ touch modified removed deleted
  $ hg ci -q -A -m 'initial checkin'
  $ touch added unknown
  $ hg add added
  $ hg remove removed
  $ rm deleted
  $ echo x > modified
  $ hg copy modified copied
  $ hg ci -m 'test checkin' -d "1000001 0"
  $ rm *
  $ touch unrelated
  $ hg ci -q -A -m 'unrelated checkin' -d "1000002 0"

hg status --change 1:

  $ hg status --change 1
  M modified
  A added
  A copied
  R removed

hg status --change 1 unrelated:

  $ hg status --change 1 unrelated

hg status -C --change 1 added modified copied removed deleted:

  $ hg status -C --change 1 added modified copied removed deleted
  M modified
  A added
  A copied
    modified
  R removed

hg status -A --change 1 and revset:

  $ hg status -A --change '1|1'
  M modified
  A added
  A copied
    modified
  R removed
  C deleted

  $ cd ..

hg status with --rev and reverted changes:

  $ hg init reverted-changes-repo
  $ cd reverted-changes-repo
  $ echo a > file
  $ hg add file
  $ hg ci -m a
  $ echo b > file
  $ hg ci -m b

reverted file should appear clean

  $ hg revert -r 0 .
  reverting file
  $ hg status -A --rev 0
  C file

#if execbit
reverted file with changed flag should appear modified

  $ chmod +x file
  $ hg status -A --rev 0
  M file

  $ hg revert -r 0 .
  reverting file

reverted and committed file with changed flag should appear modified

  $ hg co -C .
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ chmod +x file
  $ hg ci -m 'change flag'
  $ hg status -A --rev 1 --rev 2
  M file
  $ hg diff -r 1 -r 2

#endif

  $ cd ..

hg status of binary file starting with '\1\n', a separator for metadata:

  $ hg init repo5
  $ cd repo5
  >>> open("010a", "wb").write("\1\nfoo")
  $ hg ci -q -A -m 'initial checkin'
  $ hg status -A
  C 010a

  >>> open("010a", "wb").write("\1\nbar")
  $ hg status -A
  M 010a
  $ hg ci -q -m 'modify 010a'
  $ hg status -A --rev 0:1
  M 010a

  $ touch empty
  $ hg ci -q -A -m 'add another file'
  $ hg status -A --rev 1:2 010a
  C 010a

  $ cd ..

test "hg status" with "directory pattern" which matches against files
only known on target revision.

  $ hg init repo6
  $ cd repo6

  $ echo a > a.txt
  $ hg add a.txt
  $ hg commit -m '#0'
  $ mkdir -p 1/2/3/4/5
  $ echo b > 1/2/3/4/5/b.txt
  $ hg add 1/2/3/4/5/b.txt
  $ hg commit -m '#1'

  $ hg update -C 0 > /dev/null
  $ hg status -A
  C a.txt

the directory matching against specified pattern should be removed,
because directory existence prevents 'dirstate.walk()' from showing
warning message about such pattern.

  $ test ! -d 1
  $ hg status -A --rev 1 1/2/3/4/5/b.txt
  R 1/2/3/4/5/b.txt
  $ hg status -A --rev 1 1/2/3/4/5
  R 1/2/3/4/5/b.txt
  $ hg status -A --rev 1 1/2/3
  R 1/2/3/4/5/b.txt
  $ hg status -A --rev 1 1
  R 1/2/3/4/5/b.txt

  $ hg status --config ui.formatdebug=True --rev 1 1
  status = [
      {*'path': '1/2/3/4/5/b.txt'*}, (glob)
  ]

#if windows
  $ hg --config ui.slash=false status -A --rev 1 1
  R 1\2\3\4\5\b.txt
#endif

  $ cd ..

Status after move overwriting a file (issue4458)
=================================================


  $ hg init issue4458
  $ cd issue4458
  $ echo a > a
  $ echo b > b
  $ hg commit -Am base
  adding a
  adding b


with --force

  $ hg mv b --force a
  $ hg st --copies
  M a
    b
  R b
  $ hg revert --all
  reverting a
  undeleting b
  $ rm *.orig

without force

  $ hg rm a
  $ hg st --copies
  R a
  $ hg mv b a
  $ hg st --copies
  M a
    b
  R b

using ui.statuscopies setting
  $ hg st --config ui.statuscopies=true
  M a
    b
  R b
  $ hg st --config ui.statuscopies=false
  M a
  R b

using log status template (issue5155)
  $ hg log -Tstatus -r 'wdir()' -C
  changeset:   2147483647:ffffffffffff
  parent:      0:8c55c58b4c0e
  user:        test
  date:        * (glob)
  files:
  M a
    b
  R b
  

Other "bug" highlight, the revision status does not report the copy information.
This is buggy behavior.

  $ hg commit -m 'blah'
  $ hg st --copies --change .
  M a
  R b

using log status template, the copy information is displayed correctly.
  $ hg log -Tstatus -r. -C
  changeset:   1:6685fde43d21
  tag:         tip
  user:        test
  date:        * (glob)
  summary:     blah
  files:
  M a
    b
  R b
  

  $ cd ..