Mercurial > hg
view tests/test-rename-merge2.t @ 40326:fed697fa1734
sqlitestore: file storage backend using SQLite
This commit provides an extension which uses SQLite to store file
data (as opposed to revlogs).
As the inline documentation describes, there are still several
aspects to the extension that are incomplete. But it's a start.
The extension does support basic clone, checkout, and commit
workflows, which makes it suitable for simple use cases.
One notable missing feature is support for "bundlerepos." This is
probably responsible for the most test failures when the extension
is activated as part of the test suite.
All revision data is stored in SQLite. Data is stored as zstd
compressed chunks (default if zstd is available), zlib compressed
chunks (default if zstd is not available), or raw chunks (if
configured or if a compressed delta is not smaller than the raw
delta). This makes things very similar to revlogs.
Unlike revlogs, the extension doesn't yet enforce a limit on delta
chain length. This is an obvious limitation and should be addressed.
This is somewhat mitigated by the use of zstd, which is much faster
than zlib to decompress.
There is a dedicated table for storing deltas. Deltas are stored
by the SHA-1 hash of their uncompressed content. The "fileindex" table
has columns that reference the delta for each revision and the base
delta that delta should be applied against. A recursive SQL query
is used to resolve the delta chain along with the delta data.
By storing deltas by hash, we are able to de-duplicate delta storage!
With revlogs, the same deltas in different revlogs would result in
duplicate storage of that delta. In this scheme, inserting the
duplicate delta is a no-op and delta chains simply reference the
existing delta.
When initially implementing this extension, I did not have
content-indexed deltas and deltas could be duplicated across files
(just like revlogs). When I implemented content-indexed deltas, the
size of the SQLite database for a full clone of mozilla-unified
dropped:
before: 2,554,261,504 bytes
after: 2,488,754,176 bytes
Surprisingly, this is still larger than the bytes size of revlog
files:
revlog files: 2,104,861,230 bytes
du -b: 2,254,381,614
I would have expected storage to be smaller since we're not limiting
delta chain length and since we're using zstd instead of zlib. I
suspect the SQLite indexes and per-column overhead account for the
bulk of the differences. (Keep in mind that revlog uses a 64-byte
packed struct for revision index data and deltas are stored without
padding. Aside from the 12 unused bytes in the 32 byte node field,
revlogs are pretty efficient.) Another source of overhead is file
name storage. With revlogs, file names are stored in the filesystem.
But with SQLite, we need to store file names in the database. This is
roughly equivalent to the size of the fncache file, which for the
mozilla-unified repository is ~34MB.
Since the SQLite database isn't append-only and since delta chains
can reference any delta, this opens some interesting possibilities.
For example, we could store deltas in reverse, such that fulltexts
are stored for newer revisions and deltas are applied to reconstruct
older revisions. This is likely a more optimal storage strategy for
version control, as new data tends to be more frequently accessed
than old data. We would obviously need wire protocol support for
transferring revision data from newest to oldest. And we would
probably need some kind of mechanism for "re-encoding" stores. But
it should be doable.
This extension is very much experimental quality. There are a handful
of features that don't work. It probably isn't suitable for day-to-day
use. But it could be used in limited cases (e.g. read-only checkouts
like in CI). And it is also a good proving ground for alternate
storage backends. As we continue to define interfaces for all things
storage, it will be useful to have a viable alternate storage backend
to see how things shake out in practice.
test-storage.py passes on Python 2 and introduces no new test failures on
Python 3. Having the storage-level unit tests has proved to be insanely
useful when developing this extension. Those tests caught numerous bugs
during development and I'm convinced this style of testing is the way
forward for ensuring alternate storage backends work as intended. Of
course, test coverage isn't close to what it needs to be. But it is
a start. And what coverage we have gives me confidence that basic store
functionality is implemented properly.
Differential Revision: https://phab.mercurial-scm.org/D4928
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Tue, 09 Oct 2018 08:50:13 -0700 |
parents | 5abc47d4ca6b |
children | 344066b54a7b |
line wrap: on
line source
$ mkdir -p t $ cd t $ cat <<EOF > merge > import sys, os > f = open(sys.argv[1], "w") > f.write("merge %s %s %s" % (sys.argv[1], sys.argv[2], sys.argv[3])) > f.close() > EOF perform a test merge with possible renaming args: $1 = action in local branch $2 = action in remote branch $3 = action in working dir $4 = expected result $ tm() > { > hg init t > cd t > echo "[merge]" >> .hg/hgrc > echo "followcopies = 1" >> .hg/hgrc > > # base > echo base > a > echo base > rev # used to force commits > hg add a rev > hg ci -m "base" > > # remote > echo remote > rev > if [ "$2" != "" ] ; then $2 ; fi > hg ci -m "remote" > > # local > hg co -q 0 > echo local > rev > if [ "$1" != "" ] ; then $1 ; fi > hg ci -m "local" > > # working dir > echo local > rev > if [ "$3" != "" ] ; then $3 ; fi > > # merge > echo "--------------" > echo "test L:$1 R:$2 W:$3 - $4" > echo "--------------" > hg merge -y --debug --traceback --tool="\"$PYTHON\" ../merge" > > echo "--------------" > hg status -camC -X rev > > hg ci -m "merge" > > echo "--------------" > echo > > cd .. > rm -r t > } $ up() { > cp rev $1 > hg add $1 2> /dev/null > if [ "$2" != "" ] ; then > cp rev $2 > hg add $2 2> /dev/null > fi > } $ uc() { up $1; hg cp $1 $2; } # update + copy $ um() { up $1; hg mv $1 $2; } $ nc() { hg cp $1 $2; } # just copy $ nm() { hg mv $1 $2; } # just move $ tm "up a " "nc a b" " " "1 get local a to b" created new head -------------- test L:up a R:nc a b W: - 1 get local a to b -------------- searching for copies back to rev 1 unmatched files in other: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: e300d1c794ec+, remote: 4ce40f5aca24 preserving a for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) b: remote copied from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging a and b to b my b@e300d1c794ec+ other b@4ce40f5aca24 ancestor a@924404dff337 premerge successful rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@e300d1c794ec+ other rev@4ce40f5aca24 ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@e300d1c794ec+ other rev@4ce40f5aca24 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b a C a -------------- $ tm "nc a b" "up a " " " "2 get rem change to a and b" created new head -------------- test L:nc a b R:up a W: - 2 get rem change to a and b -------------- searching for copies back to rev 1 unmatched files in local: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 86a2aa42fc76+, remote: f4db7e329e71 preserving b for resolve of b preserving rev for resolve of rev a: remote is newer -> g getting a b: local copied/moved from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b and a to b my b@86a2aa42fc76+ other a@f4db7e329e71 ancestor a@924404dff337 premerge successful rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@86a2aa42fc76+ other rev@f4db7e329e71 ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@86a2aa42fc76+ other rev@f4db7e329e71 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M a M b a -------------- $ tm "up a " "nm a b" " " "3 get local a change to b, remove a" created new head -------------- test L:up a R:nm a b W: - 3 get local a change to b, remove a -------------- searching for copies back to rev 1 unmatched files in other: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: e300d1c794ec+, remote: bdb19105162a preserving a for resolve of b preserving rev for resolve of rev removing a starting 4 threads for background file closing (?) b: remote moved from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging a and b to b my b@e300d1c794ec+ other b@bdb19105162a ancestor a@924404dff337 premerge successful rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@e300d1c794ec+ other rev@bdb19105162a ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@e300d1c794ec+ other rev@bdb19105162a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b a -------------- $ tm "nm a b" "up a " " " "4 get remote change to b" created new head -------------- test L:nm a b R:up a W: - 4 get remote change to b -------------- searching for copies back to rev 1 unmatched files in local: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 02963e448370+, remote: f4db7e329e71 preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) b: local copied/moved from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b and a to b my b@02963e448370+ other a@f4db7e329e71 ancestor a@924404dff337 premerge successful rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@02963e448370+ other rev@f4db7e329e71 ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@02963e448370+ other rev@f4db7e329e71 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b a -------------- $ tm " " "nc a b" " " "5 get b" created new head -------------- test L: R:nc a b W: - 5 get b -------------- searching for copies back to rev 1 unmatched files in other: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 94b33a1b7f2d+, remote: 4ce40f5aca24 preserving rev for resolve of rev b: remote created -> g getting b rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@94b33a1b7f2d+ other rev@4ce40f5aca24 ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@94b33a1b7f2d+ other rev@4ce40f5aca24 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b C a -------------- $ tm "nc a b" " " " " "6 nothing" created new head -------------- test L:nc a b R: W: - 6 nothing -------------- searching for copies back to rev 1 unmatched files in local: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 97c705ade336 preserving rev for resolve of rev starting 4 threads for background file closing (?) rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@86a2aa42fc76+ other rev@97c705ade336 ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@86a2aa42fc76+ other rev@97c705ade336 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- C a C b -------------- $ tm " " "nm a b" " " "7 get b" created new head -------------- test L: R:nm a b W: - 7 get b -------------- searching for copies back to rev 1 unmatched files in other: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 94b33a1b7f2d+, remote: bdb19105162a preserving rev for resolve of rev a: other deleted -> r removing a b: remote created -> g getting b rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@94b33a1b7f2d+ other rev@bdb19105162a ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@94b33a1b7f2d+ other rev@bdb19105162a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 1 files merged, 1 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b -------------- $ tm "nm a b" " " " " "8 nothing" created new head -------------- test L:nm a b R: W: - 8 nothing -------------- searching for copies back to rev 1 unmatched files in local: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 02963e448370+, remote: 97c705ade336 preserving rev for resolve of rev starting 4 threads for background file closing (?) rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@02963e448370+ other rev@97c705ade336 ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@02963e448370+ other rev@97c705ade336 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- C b -------------- $ tm "um a b" "um a b" " " "9 do merge with ancestor in a" created new head -------------- test L:um a b R:um a b W: - 9 do merge with ancestor in a -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 62e7bf090eba+, remote: 49b6d8032493 preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) b: both renamed from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@62e7bf090eba+ other b@49b6d8032493 ancestor a@924404dff337 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@62e7bf090eba+ other rev@49b6d8032493 ancestor rev@924404dff337 b: both renamed from a -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@62e7bf090eba+ other b@49b6d8032493 ancestor a@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@62e7bf090eba+ other rev@49b6d8032493 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b -------------- m "um a c" "um x c" " " "10 do merge with no ancestor" $ tm "nm a b" "nm a c" " " "11 get c, keep b" created new head -------------- test L:nm a b R:nm a c W: - 11 get c, keep b -------------- searching for copies back to rev 1 unmatched files in local: b unmatched files in other: c all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' ! src: 'a' -> dst: 'c' ! checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 02963e448370+, remote: fe905ef2c33e note: possible conflict - a was renamed multiple times to: b c preserving rev for resolve of rev c: remote created -> g getting c rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@02963e448370+ other rev@fe905ef2c33e ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@02963e448370+ other rev@fe905ef2c33e ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M c C b -------------- $ tm "nc a b" "up b " " " "12 merge b no ancestor" created new head -------------- test L:nc a b R:up b W: - 12 merge b no ancestor -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 86a2aa42fc76+, remote: af30c7647fc7 preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@86a2aa42fc76+ other b@af30c7647fc7 ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@86a2aa42fc76+ other rev@af30c7647fc7 ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@86a2aa42fc76+ other b@af30c7647fc7 ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@86a2aa42fc76+ other rev@af30c7647fc7 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b C a -------------- $ tm "up b " "nm a b" " " "13 merge b no ancestor" created new head -------------- test L:up b R:nm a b W: - 13 merge b no ancestor -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 59318016310c+, remote: bdb19105162a preserving b for resolve of b preserving rev for resolve of rev a: other deleted -> r removing a starting 4 threads for background file closing (?) b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 1 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b -------------- $ tm "nc a b" "up a b" " " "14 merge b no ancestor" created new head -------------- test L:nc a b R:up a b W: - 14 merge b no ancestor -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 8dbce441892a preserving b for resolve of b preserving rev for resolve of rev a: remote is newer -> g getting a b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M a M b -------------- $ tm "up b " "nm a b" " " "15 merge b no ancestor, remove a" created new head -------------- test L:up b R:nm a b W: - 15 merge b no ancestor, remove a -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 59318016310c+, remote: bdb19105162a preserving b for resolve of b preserving rev for resolve of rev a: other deleted -> r removing a starting 4 threads for background file closing (?) b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 1 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b -------------- $ tm "nc a b" "up a b" " " "16 get a, merge b no ancestor" created new head -------------- test L:nc a b R:up a b W: - 16 get a, merge b no ancestor -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 8dbce441892a preserving b for resolve of b preserving rev for resolve of rev a: remote is newer -> g getting a b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M a M b -------------- $ tm "up a b" "nc a b" " " "17 keep a, merge b no ancestor" created new head -------------- test L:up a b R:nc a b W: - 17 keep a, merge b no ancestor -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 0b76e65c8289+, remote: 4ce40f5aca24 preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@0b76e65c8289+ other b@4ce40f5aca24 ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@0b76e65c8289+ other rev@4ce40f5aca24 ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@0b76e65c8289+ other b@4ce40f5aca24 ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@0b76e65c8289+ other rev@4ce40f5aca24 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b C a -------------- $ tm "nm a b" "up a b" " " "18 merge b no ancestor" created new head -------------- test L:nm a b R:up a b W: - 18 merge b no ancestor -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 02963e448370+, remote: 8dbce441892a preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) a: prompt deleted/changed -> m (premerge) picked tool ':prompt' for a (binary False symlink False changedelete True) file 'a' was deleted in local [working copy] but was modified in other [merge rev]. What do you want to do? use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@02963e448370+ other b@8dbce441892a ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@02963e448370+ other rev@8dbce441892a ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@02963e448370+ other b@8dbce441892a ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@02963e448370+ other rev@8dbce441892a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon -------------- M a M b abort: unresolved merge conflicts (see 'hg help resolve') -------------- $ tm "up a b" "nm a b" " " "19 merge b no ancestor, prompt remove a" created new head -------------- test L:up a b R:nm a b W: - 19 merge b no ancestor, prompt remove a -------------- searching for copies back to rev 1 unmatched files new in both: b resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 0b76e65c8289+, remote: bdb19105162a preserving a for resolve of a preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) a: prompt changed/deleted -> m (premerge) picked tool ':prompt' for a (binary False symlink False changedelete True) file 'a' was deleted in other [merge rev] but was modified in local [working copy]. What do you want to do? use (c)hanged version, (d)elete, or leave (u)nresolved? u b: both created -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b my b@0b76e65c8289+ other b@bdb19105162a ancestor b@000000000000 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@0b76e65c8289+ other rev@bdb19105162a ancestor rev@924404dff337 b: both created -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@0b76e65c8289+ other b@bdb19105162a ancestor b@000000000000 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@0b76e65c8289+ other rev@bdb19105162a ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon -------------- M b C a abort: unresolved merge conflicts (see 'hg help resolve') -------------- $ tm "up a " "um a b" " " "20 merge a and b to b, remove a" created new head -------------- test L:up a R:um a b W: - 20 merge a and b to b, remove a -------------- searching for copies back to rev 1 unmatched files in other: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: e300d1c794ec+, remote: 49b6d8032493 preserving a for resolve of b preserving rev for resolve of rev removing a starting 4 threads for background file closing (?) b: remote moved from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging a and b to b my b@e300d1c794ec+ other b@49b6d8032493 ancestor a@924404dff337 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@e300d1c794ec+ other rev@49b6d8032493 ancestor rev@924404dff337 b: remote moved from a -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@e300d1c794ec+ other b@49b6d8032493 ancestor a@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@e300d1c794ec+ other rev@49b6d8032493 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b a -------------- $ tm "um a b" "up a " " " "21 merge a and b to b" created new head -------------- test L:um a b R:up a W: - 21 merge a and b to b -------------- searching for copies back to rev 1 unmatched files in local: b all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 62e7bf090eba+, remote: f4db7e329e71 preserving b for resolve of b preserving rev for resolve of rev starting 4 threads for background file closing (?) b: local copied/moved from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b and a to b my b@62e7bf090eba+ other a@f4db7e329e71 ancestor a@924404dff337 rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@62e7bf090eba+ other rev@f4db7e329e71 ancestor rev@924404dff337 b: local copied/moved from a -> m (merge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) my b@62e7bf090eba+ other a@f4db7e329e71 ancestor a@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob) merge tool returned: 0 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@62e7bf090eba+ other rev@f4db7e329e71 ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b a -------------- m "nm a b" "um x a" " " "22 get a, keep b" $ tm "nm a b" "up a c" " " "23 get c, keep b" created new head -------------- test L:nm a b R:up a c W: - 23 get c, keep b -------------- searching for copies back to rev 1 unmatched files in local: b unmatched files in other: c all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 924404dff337, local: 02963e448370+, remote: 2b958612230f preserving b for resolve of b preserving rev for resolve of rev c: remote created -> g getting c b: local copied/moved from a -> m (premerge) picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob) merging b and a to b my b@02963e448370+ other a@2b958612230f ancestor a@924404dff337 premerge successful rev: versions differ -> m (premerge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) merging rev my rev@02963e448370+ other rev@2b958612230f ancestor rev@924404dff337 rev: versions differ -> m (merge) picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob) my rev@02963e448370+ other rev@2b958612230f ancestor rev@924404dff337 launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob) merge tool returned: 0 1 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -------------- M b a M c -------------- $ cd .. Systematic and terse testing of merge merges and ancestor calculation: Expected result: \ a m1 m2 dst 0 - f f f "versions differ" 1 f g g g "versions differ" 2 f f f f "versions differ" 3 f f g f+g "remote copied to " + f 4 f f g g "remote moved to " + f 5 f g f f+g "local copied to " + f2 6 f g f g "local moved to " + f2 7 - (f) f f "remote differs from untracked local" 8 f (f) f f "remote differs from untracked local" $ hg init ancestortest $ cd ancestortest $ for x in 1 2 3 4 5 6 8; do mkdir $x; echo a > $x/f; done $ hg ci -Aqm "a" $ mkdir 0 $ touch 0/f $ hg mv 1/f 1/g $ hg cp 5/f 5/g $ hg mv 6/f 6/g $ hg rm 8/f $ for x in */*; do echo m1 > $x; done $ hg ci -Aqm "m1" $ hg up -qr0 $ mkdir 0 7 $ touch 0/f 7/f $ hg mv 1/f 1/g $ hg cp 3/f 3/g $ hg mv 4/f 4/g $ for x in */*; do echo m2 > $x; done $ hg ci -Aqm "m2" $ hg up -qr1 $ mkdir 7 8 $ echo m > 7/f $ echo m > 8/f $ hg merge -f --tool internal:dump -v --debug -r2 | sed '/^resolving manifests/,$d' 2> /dev/null searching for copies back to rev 1 unmatched files in local: 5/g 6/g unmatched files in other: 3/g 4/g 7/f unmatched files new in both: 0/f 1/g all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: '3/f' -> dst: '3/g' * src: '4/f' -> dst: '4/g' * src: '5/f' -> dst: '5/g' * src: '6/f' -> dst: '6/g' * checking for directory renames $ hg mani 0/f 1/g 2/f 3/f 4/f 5/f 5/g 6/g $ for f in */*; do echo $f:; cat $f; done 0/f: m1 0/f.base: 0/f.local: m1 0/f.orig: m1 0/f.other: m2 1/g: m1 1/g.base: a 1/g.local: m1 1/g.orig: m1 1/g.other: m2 2/f: m1 2/f.base: a 2/f.local: m1 2/f.orig: m1 2/f.other: m2 3/f: m1 3/f.base: a 3/f.local: m1 3/f.orig: m1 3/f.other: m2 3/g: m1 3/g.base: a 3/g.local: m1 3/g.orig: m1 3/g.other: m2 4/g: m1 4/g.base: a 4/g.local: m1 4/g.orig: m1 4/g.other: m2 5/f: m1 5/f.base: a 5/f.local: m1 5/f.orig: m1 5/f.other: m2 5/g: m1 5/g.base: a 5/g.local: m1 5/g.orig: m1 5/g.other: m2 6/g: m1 6/g.base: a 6/g.local: m1 6/g.orig: m1 6/g.other: m2 7/f: m 7/f.base: 7/f.local: m 7/f.orig: m 7/f.other: m2 8/f: m2 $ cd ..