$ cat << EOF >> $HGRCPATH

  > [format]

  > usegeneraldelta=yes

  > EOF

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 pull ../b1

  pulling from ../b1

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  new changesets c35a0f9217e6

  (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 pull ../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}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  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}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  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}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  gzip-v2

  % test bundle type none-v2

  searching for changes

  1 changesets found

  HG20\x00\x00 (esc)

  Stream params: {}

  changegroup -- {nbchanges: 1, version: 02}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  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}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  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

  $ hg --config experimental.bundlecomplevel=1 bundle -a -t gzip-v2 gzip-v2-level1.hg

  1 changesets found

  $ f --size gzip-v2-level1.hg

  $ 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}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  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}

      c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf

  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 ..