view tests/test-bundle-type.t @ 40417:49c7b701fdc2 stable

phase: add an archived phase

This phase allows for hidden changesets in the "user space". It differs from
the "internal" phase which is intended for internal by-product only. There
have been discussions at the 4.8 sprint to use such phase to speedup cleanup
after history rewriting operation.

Shipping it in the same release as the 'internal-phase' groups the associated
`requires` entry. The important bit is to have support for this phase in the
earliest version of mercurial possible. Adding the UI to manipulate this new
phase later seems fine.

The current plan for archived usage and user interface are as follow. On a
repository with internal-phase on and evolution off:

* history rewriting command set rewritten changeset in the archived phase.
  (This mean updating the cleanupnodes method).
* keep `hg unbundle .hg/strip-backup/X.hg` as a way to restore changeset for
  now
  (backup bundle need to contains phase data)
* [maybe] add a `hg strip --soft` advance flag
  (a light way to expose the feature without getting in the way of a better
  UI)

Mercurial 4.8 freeze is too close to get the above in by then.

We don't introduce a new repository `requirement` as we reuse the one
introduced with the 'archived' phase during the 4.8 cycle.

bundle w/o type option

  $ hg init t1
  $ hg init t2
  $ cd t1
  $ echo blablablablabla > file.txt
  $ hg ci -Ama
  adding file.txt
  $ hg log | grep summary
  summary:     a
  $ hg bundle ../b1 ../t2
  searching for changes
  1 changesets found

  $ cd ../t2
  $ hg unbundle ../b1
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets c35a0f9217e6 (1 drafts)
  (run 'hg update' to get a working copy)
  $ hg up
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log | grep summary
  summary:     a
  $ cd ..

Unknown compression type is rejected

  $ hg init t3
  $ cd t3
  $ hg -q unbundle ../b1
  $ hg bundle -a -t unknown out.hg
  abort: unknown is not a recognized bundle specification
  (see 'hg help bundlespec' for supported values for --type)
  [255]

  $ hg bundle -a -t unknown-v2 out.hg
  abort: unknown compression is not supported
  (see 'hg help bundlespec' for supported values for --type)
  [255]

  $ cd ..

test bundle types

  $ testbundle() {
  >   echo % test bundle type $1
  >   hg init t$1
  >   cd t1
  >   hg bundle -t $1 ../b$1 ../t$1
  >   f -q -B6 -D ../b$1; echo
  >   cd ../t$1
  >   hg debugbundle ../b$1
  >   hg debugbundle --spec ../b$1
  >   echo
  >   cd ..
  > }

  $ for t in "None" "bzip2" "gzip" "none-v2" "v2" "v1" "gzip-v1"; do
  >   testbundle $t
  > done
  % test bundle type None
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  none-v2
  
  % test bundle type bzip2
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {Compression: BZ}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  bzip2-v2
  
  % test bundle type gzip
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {Compression: GZ}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  gzip-v2
  
  % test bundle type none-v2
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  none-v2
  
  % test bundle type v2
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {Compression: BZ}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  bzip2-v2
  
  % test bundle type v1
  searching for changes
  1 changesets found
  HG10BZ
  c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  bzip2-v1
  
  % test bundle type gzip-v1
  searching for changes
  1 changesets found
  HG10GZ
  c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  gzip-v1
  

Compression level can be adjusted for bundle2 bundles

  $ hg init test-complevel
  $ cd test-complevel

  $ cat > file0 << EOF
  > this is a file
  > with some text
  > and some more text
  > and other content
  > EOF
  $ cat > file1 << EOF
  > this is another file
  > with some other content
  > and repeated, repeated, repeated, repeated content
  > EOF
  $ hg -q commit -A -m initial

  $ hg bundle -a -t gzip-v2 gzip-v2.hg
  1 changesets found
  $ f --size gzip-v2.hg
  gzip-v2.hg: size=468

  $ hg --config experimental.bundlecomplevel=1 bundle -a -t gzip-v2 gzip-v2-level1.hg
  1 changesets found
  $ f --size gzip-v2-level1.hg
  gzip-v2-level1.hg: size=475

  $ hg --config experimental.bundlecomplevel.gzip=1 --config experimental.bundlelevel=9 bundle -a -t gzip-v2 gzip-v2-level1.hg
  1 changesets found
  $ f --size gzip-v2-level1.hg
  gzip-v2-level1.hg: size=475

  $ cd ..

#if zstd

  $ for t in "zstd" "zstd-v2"; do
  >   testbundle $t
  > done
  % test bundle type zstd
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {Compression: ZS}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  zstd-v2
  
  % test bundle type zstd-v2
  searching for changes
  1 changesets found
  HG20\x00\x00 (esc)
  Stream params: {Compression: ZS}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
  cache:rev-branch-cache -- {} (mandatory: False)
  zstd-v2
  

Explicit request for zstd on non-generaldelta repos

  $ hg --config format.usegeneraldelta=false init nogd
  $ hg -q -R nogd pull t1
  $ hg -R nogd bundle -a -t zstd nogd-zstd
  1 changesets found

zstd-v1 always fails

  $ hg -R tzstd bundle -a -t zstd-v1 zstd-v1
  abort: compression engine zstd is not supported on v1 bundles
  (see 'hg help bundlespec' for supported values for --type)
  [255]

#else

zstd is a valid engine but isn't available

  $ hg -R t1 bundle -a -t zstd irrelevant.hg
  abort: compression engine zstd could not be loaded
  [255]

#endif

test garbage file

  $ echo garbage > bgarbage
  $ hg init tgarbage
  $ cd tgarbage
  $ hg pull ../bgarbage
  pulling from ../bgarbage
  abort: ../bgarbage: not a Mercurial bundle
  [255]
  $ cd ..

test invalid bundle type

  $ cd t1
  $ hg bundle -a -t garbage ../bgarbage
  abort: garbage is not a recognized bundle specification
  (see 'hg help bundlespec' for supported values for --type)
  [255]
  $ cd ..