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inotify: server: new data structure to keep track of changes....
inotify: server: new data structure to keep track of changes. == Rationale for the new structure == Current structure was a dictionary tree. One directory was tracked as a dictionary: - keys: file/subdir name - values: - for a file, the status (a/r/m/...) - for a subdir, the directory representing the subdir It allowed efficient lookups, no matter of the type of the terminal leaf: for part in path.split('/'): tree = tree[part] However, there is no way to represent a directory and a file with the same name because keys are conflicting in the dictionary. Concrete example: Initial state: root dir |- foo (file) |- bar (file) # data state is: {'foo': 'n', 'bar': 'n'} Remove foo: root dir |- bar (file) # Data becomes {'foo': 'r'} until next commit. Add foo, as a directory, and foo/barbar file: root dir |- bar (file) |-> foo (dir) |- barbar (file) # New state should be represented as: {'foo': {'barbar': 'a'}, 'bar': 'n'} however, the key "foo" is already used and represents the old file. The dirstate: D foo A foo/barbar cannot be represented, hence the need for a new structure. == The new structure == 'directory' class. Represents one directory level. * Notable attributes: Two dictionaries: - 'files' Maps filename -> status for the current dir. - 'dirs' Maps subdir's name -> directory object representing the subdir * methods - walk(), formerly server.walk - lookup(), old server.lookup - dir(), old server.dir This new class allows embedding all the tree walks/lookups in its own class, instead of having everything mixed together in server. Incidently, since files and directories are not stored in the same dictionaries, we are solving the previous key conflict problem. The small drawback is that lookup operation is a bit more complex: for a path a/b/c/d/e we have to check twice the leaf, if e is a directory or a file.
Martin Geisler - - Load All Authors

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test-committer.out
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Andrew Thompson
Add tests/test-committer...
 r2104 changeset: 0:9426b370c206
tag: tip
user: My Name <myname@example.com>
date: Mon Jan 12 13:46:40 1970 +0000
summary: commit-1
Benoit Boissinot
only print a warning when no username is specified...
 r3721 changeset: 1:4997f15a1b24
Benoit Boissinot
makes username mandatory
 r3466 tag: tip
user: foo@bar.com
date: Mon Jan 12 13:46:40 1970 +0000
summary: commit-1
Benoit Boissinot
only print a warning when no username is specified...
 r3721 changeset: 2:72b8012b424e
Benoit Boissinot
makes username mandatory
 r3466 tag: tip
user: foobar <foo@bar.com>
date: Mon Jan 12 13:46:40 1970 +0000
summary: commit-1
Benoit Boissinot
only print a warning when no username is specified...
 r3721 changeset: 3:35ff3067bedd
Benoit Boissinot
makes username mandatory
 r3466 tag: tip
user: foo@bar.com
date: Mon Jan 12 13:46:40 1970 +0000
summary: commit-1
Matt Mackall
Use a weakref for recursive transactions
 r4916 abort: Please specify a username.
Benoit Boissinot
only print a warning when no username is specified...
 r3721 No username found, using user@host instead
Martin Geisler
changelog: refuse to add revisions with empty usernames...
 r8424 transaction abort!
rollback completed
abort: empty username!