view tests/test-remove.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.

  $ remove() {
  >     hg rm $@
  >     echo "exit code: $?"
  >     hg st
  >     # do not use ls -R, which recurses in .hg subdirs on Mac OS X 10.5
  >     find . -name .hg -prune -o -type f -print | sort
  >     hg up -C
  > }

  $ cat >> $HGRCPATH <<EOF
  > [progress]
  > disable=False
  > assume-tty = 1
  > delay = 0
  > # set changedelay really large so we don't see nested topics
  > changedelay = 30000
  > format = topic bar number
  > refresh = 0
  > width = 60
  > EOF

  $ hg init a
  $ cd a
  $ echo a > foo

file not managed

  $ remove foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing foo: file is untracked
  exit code: 1
  ? foo
  ./foo
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg add foo
  $ hg commit -m1

the table cases
00 state added, options none

  $ echo b > bar
  $ hg add bar
  $ remove bar
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  skipping [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing bar: file has been marked for add (use 'hg forget' to undo add)
  exit code: 1
  A bar
  ./bar
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

01 state clean, options none

  $ remove foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  ? bar
  ./bar
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

02 state modified, options none

  $ echo b >> foo
  $ remove foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  skipping [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing foo: file is modified (use -f to force removal)
  exit code: 1
  M foo
  ? bar
  ./bar
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

03 state missing, options none

  $ rm foo
  $ remove foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  ? bar
  ./bar
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

10 state added, options -f

  $ echo b > bar
  $ hg add bar
  $ remove -f bar
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  ? bar
  ./bar
  ./foo
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm bar

11 state clean, options -f

  $ remove -f foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

12 state modified, options -f

  $ echo b >> foo
  $ remove -f foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

13 state missing, options -f

  $ rm foo
  $ remove -f foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

20 state added, options -A

  $ echo b > bar
  $ hg add bar
  $ remove -A bar
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  skipping [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing bar: file still exists
  exit code: 1
  A bar
  ./bar
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

21 state clean, options -A

  $ remove -A foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  skipping [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing foo: file still exists
  exit code: 1
  ? bar
  ./bar
  ./foo
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

22 state modified, options -A

  $ echo b >> foo
  $ remove -A foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  skipping [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing foo: file still exists
  exit code: 1
  M foo
  ? bar
  ./bar
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

23 state missing, options -A

  $ rm foo
  $ remove -A foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  ? bar
  ./bar
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

30 state added, options -Af

  $ echo b > bar
  $ hg add bar
  $ remove -Af bar
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  ? bar
  ./bar
  ./foo
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm bar

31 state clean, options -Af

  $ remove -Af foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

32 state modified, options -Af

  $ echo b >> foo
  $ remove -Af foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

33 state missing, options -Af

  $ rm foo
  $ remove -Af foo
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  exit code: 0
  R foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

test some directory stuff

  $ mkdir test
  $ echo a > test/foo
  $ echo b > test/bar
  $ hg ci -Am2
  adding test/bar
  adding test/foo

dir, options none

  $ rm test/bar
  $ remove test
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [=====================>                      ] 1/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [===========================================>] 2/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  removing test/bar (glob)
  removing test/foo (glob)
  exit code: 0
  R test/bar
  R test/foo
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 2/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

dir, options -f

  $ rm test/bar
  $ remove -f test
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [=====================>                      ] 1/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [===========================================>] 2/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  removing test/bar (glob)
  removing test/foo (glob)
  exit code: 0
  R test/bar
  R test/foo
  ./foo
  \r (no-eol) (esc)
  updating [===========================================>] 2/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

dir, options -A

  $ rm test/bar
  $ remove -A test
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  skipping [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  removing test/bar (glob)
  not removing test/foo: file still exists (glob)
  exit code: 1
  R test/bar
  ./foo
  ./test/foo
  \r (no-eol) (esc)
  updating [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

dir, options -Af

  $ rm test/bar
  $ remove -Af test
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [=====================>                      ] 1/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [===========================================>] 2/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  removing test/bar (glob)
  removing test/foo (glob)
  exit code: 0
  R test/bar
  R test/foo
  ./foo
  ./test/foo
  \r (no-eol) (esc)
  updating [===========================================>] 2/2\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

test remove dropping empty trees (issue1861)

  $ mkdir -p issue1861/b/c
  $ echo x > issue1861/x
  $ echo y > issue1861/b/c/y
  $ hg ci -Am add
  adding issue1861/b/c/y
  adding issue1861/x
  $ hg rm issue1861/b
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  removing issue1861/b/c/y (glob)
  $ hg ci -m remove
  $ ls issue1861
  x

test that commit does not crash if the user removes a newly added file

  $ touch f1
  $ hg add f1
  $ rm f1
  $ hg ci -A -mx
  removing f1
  nothing changed
  [1]

handling of untracked directories and missing files

  $ mkdir d1
  $ echo a > d1/a
  $ hg rm --after d1
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  not removing d1: no tracked files
  [1]
  $ hg add d1/a
  $ rm d1/a
  $ hg rm --after d1
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  removing d1/a (glob)

  $ hg rm --after nosuch
  nosuch: * (glob)
  \r (no-eol) (esc)
  deleting [===========================================>] 1/1\r (no-eol) (esc)
                                                              \r (no-eol) (esc)
  [1]