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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.
Patrick Mezard - - Load All Authors

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Thomas Arendsen Hein
Use 'hg ci -d "1000000 0"' in tests to circumvent problem with leading zero....
 r1933 changeset: 0:0acdaf898367
Thomas Arendsen Hein
Fixed tests for displaying tags in hg history and hg parents....
 r388 tag: tip
mpm@selenic.com
Add a simple testing framework...
 r331 user: test
Thomas Arendsen Hein
Use 'hg ci -d "1000000 0"' in tests to circumvent problem with leading zero....
 r1933 date: Mon Jan 12 13:46:40 1970 +0000
mpm@selenic.com
Add a simple testing framework...
 r331 summary: test
Patrick Mezard
Display symlink or executable bit with manifest -v...
 r5405 b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 644 a
mpm@selenic.com
Add a simple testing framework...
 r331 a
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
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