view tests/test-remove.t @ 30350:358cda0af6ee

util: create new abstraction for compression engines

Currently, util.py has "compressors" and "decompressors" dicts
mapping compression algorithms to callables returning objects that
perform well-defined operations. In addition, revlog.py has code
for calling into a compressor or decompressor explicitly. And, there
is code in the wire protocol for performing zlib compression.

The 3rd party lz4revlog extension has demonstrated the utility of
supporting alternative compression formats for revlog storage. But
it stops short of supporting lz4 for bundles and the wire protocol.

There are also plans to support zstd as a general compression
replacement.

So, there appears to be a market for a unified API for registering
compression engines. This commit starts the process of establishing
one.

This commit establishes a base class/interface for defining
compression engines and how they will be used. A collection class
to hold references to registered compression engines has also been
introduced.

The built-in zlib, bz2, truncated bz2, and no-op compression engines
are registered with a singleton instance of the collection class.

The compression engine API will change once consumers are ported
to the new API and some common patterns can be simplified at the
engine API level. So don't get too attached to the API...

  $ 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]