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context: avoid extra parents lookups...
context: avoid extra parents lookups Resolving parents requires reading from the changelog, which is a few attributes and function calls away. Parents lookup occurs surprisingly often. Micro optimizing the code to avoid redundant lookups of parents appears to make `hg log` on my Firefox repo a little faster: before: 24.91s after: 23.76s delta: -1.15s (95.4% of original)
Dan Villiom Podlaski Christiansen - - Load All Authors

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multirevs.txt
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When Mercurial accepts more than one revision, they may be specified
individually, or provided as a topologically continuous range,
separated by the ":" character.
The syntax of range notation is [BEGIN]:[END], where BEGIN and END are
revision identifiers. Both BEGIN and END are optional. If BEGIN is not
specified, it defaults to revision number 0. If END is not specified,
it defaults to the tip. The range ":" thus means "all revisions".
If BEGIN is greater than END, revisions are treated in reverse order.
A range acts as a closed interval. This means that a range of 3:5
gives 3, 4 and 5. Similarly, a range of 9:6 gives 9, 8, 7, and 6.