view tests/test-remove.t @ 14365:a8e3931e3fb5

revlog: linearize created changegroups in generaldelta revlogs

This greatly improves the speed of the bundling process, and often reduces the
bundle size considerably. (Although if the repository is already ordered, this
has little effect on both time and bundle size.)

For non-generaldelta clients, the reduced bundle size translates to a reduced
repository size, similar to shrinking the revlogs (which uses the exact same
algorithm). For generaldelta clients the difference is minor.

When the new bundle format comes, reordering will not be necessary since we
can then store the deltaparent relationsships directly. The eventual default
behavior for clients and servers is presented in the table below, where "new"
implies support for GD as well as the new bundle format:

                    old client                    new client
old server          old bundle, no reorder        old bundle, no reorder
new server, non-GD  old bundle, no reorder[1]     old bundle, no reorder[2]
new server, GD      old bundle, reorder[3]        new bundle, no reorder[4]

[1] reordering is expensive on the server in this case, skip it
[2] client can choose to do its own redelta here
[3] reordering is needed because otherwise the pull does a lot of extra
    work on the server
[4] reordering isn't needed because client can get deltabase in bundle
    format

Currently, the default is to reorder on GD-servers, and not otherwise. A new
setting, bundle.reorder, has been added to override the default reordering
behavior. It can be set to either 'auto' (the default), or any true or false
value as a standard boolean setting, to either force the reordering on or off
regardless of generaldelta.


Some timing data from a relatively branch test repository follows. All
bundling is done with --all --type none options.

Non-generaldelta, non-shrunk repo:
-----------------------------------
Size: 276M

Without reorder (default):
Bundle time: 14.4 seconds
Bundle size: 939M

With reorder:
Bundle time: 1 minute, 29.3 seconds
Bundle size: 381M

Generaldelta, non-shrunk repo:
-----------------------------------
Size: 87M

Without reorder:
Bundle time: 2 minutes, 1.4 seconds
Bundle size: 939M

With reorder (default):
Bundle time: 25.5 seconds
Bundle size: 381M

  $ remove() {
  >     hg rm $@
  >     echo "exit code: $?" # no-check-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
  > }

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

file not managed

  $ remove foo
  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
  not removing bar: file has been marked for add (use -f to force removal)
  exit code: 1
  A bar
  ./bar
  ./foo
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

01 state clean, options none

  $ remove foo
  exit code: 0
  R foo
  ? bar
  ./bar
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

02 state modified, options none

  $ echo b >> foo
  $ remove foo
  not removing foo: file is modified (use -f to force removal)
  exit code: 1
  M foo
  ? bar
  ./bar
  ./foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

03 state missing, options none

  $ rm foo
  $ remove foo
  exit code: 0
  R foo
  ? bar
  ./bar
  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
  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
  exit code: 0
  R foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

12 state modified, options -f

  $ echo b >> foo
  $ remove -f foo
  exit code: 0
  R foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

13 state missing, options -f

  $ rm foo
  $ remove -f foo
  exit code: 0
  R foo
  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
  not removing bar: file still exists (use -f to force removal)
  exit code: 1
  A bar
  ./bar
  ./foo
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

21 state clean, options -A

  $ remove -A foo
  not removing foo: file still exists (use -f to force removal)
  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
  not removing foo: file still exists (use -f to force removal)
  exit code: 1
  M foo
  ? bar
  ./bar
  ./foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

23 state missing, options -A

  $ rm foo
  $ remove -A foo
  exit code: 0
  R foo
  ? bar
  ./bar
  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
  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
  exit code: 0
  R foo
  ./foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

32 state modified, options -Af

  $ echo b >> foo
  $ remove -Af foo
  exit code: 0
  R foo
  ./foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

33 state missing, options -Af

  $ rm foo
  $ remove -Af foo
  exit code: 0
  R foo
  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
  removing test/bar
  removing test/foo
  exit code: 0
  R test/bar
  R test/foo
  ./foo
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

dir, options -f

  $ rm test/bar
  $ remove -f test
  removing test/bar
  removing test/foo
  exit code: 0
  R test/bar
  R test/foo
  ./foo
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

dir, options -A

  $ rm test/bar
  $ remove -A test
  not removing test/foo: file still exists (use -f to force removal)
  removing test/bar
  exit code: 1
  R test/bar
  ./foo
  ./test/foo
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

dir, options -Af

  $ rm test/bar
  $ remove -Af test
  removing test/bar
  removing test/foo
  exit code: 0
  R test/bar
  R test/foo
  ./foo
  ./test/foo
  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
  removing issue1861/b/c/y
  $ hg ci -m remove
  $ ls issue1861
  x