formatter: add helper to create a formatter optionally backed by file
To make things simple, openformatter() and maybereopen() have no support
for a plain object API. Callers must use the "with" statement.
Unlike cmdutil.makefileobj(), append mode ('ab') isn't supported by these
functions. This is because JSON output can't be simply concatenated. Perhaps
cmdutil.export() will have to build a {filename: [revs...]} map first and
write revs per file.
$ 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
(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 -- "sortdict([('version', '02'), ('nbchanges', '1')])"
c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
none-v2
% test bundle type bzip2
searching for changes
1 changesets found
HG20\x00\x00 (esc)
Stream params: sortdict([('Compression', 'BZ')])
changegroup -- "sortdict([('version', '02'), ('nbchanges', '1')])"
c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
bzip2-v2
% test bundle type gzip
searching for changes
1 changesets found
HG20\x00\x00 (esc)
Stream params: sortdict([('Compression', 'GZ')])
changegroup -- "sortdict([('version', '02'), ('nbchanges', '1')])"
c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
gzip-v2
% test bundle type none-v2
searching for changes
1 changesets found
HG20\x00\x00 (esc)
Stream params: {}
changegroup -- "sortdict([('version', '02'), ('nbchanges', '1')])"
c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
none-v2
% test bundle type v2
searching for changes
1 changesets found
HG20\x00\x00 (esc)
Stream params: sortdict([('Compression', 'BZ')])
changegroup -- "sortdict([('version', '02'), ('nbchanges', '1')])"
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
gzip-v2.hg: size=427
$ 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=435
$ 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: sortdict([('Compression', 'ZS')])
changegroup -- "sortdict([('version', '02'), ('nbchanges', '1')])"
c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
zstd-v2
% test bundle type zstd-v2
searching for changes
1 changesets found
HG20\x00\x00 (esc)
Stream params: sortdict([('Compression', 'ZS')])
changegroup -- "sortdict([('version', '02'), ('nbchanges', '1')])"
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 ..