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README: requires keyword is not necessarily required anymore

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Ariadne Conill 2020-08-18 14:42:30 -06:00
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README.md
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@ -8,10 +8,10 @@ ifupdown, BusyBox ifupdown and Cumulus Networks' ifupdown2.
![Dependency resolution example](doc/img/dependency-resolution.png)
ifupdown-ng uses a dependency resolver to determine interface bring-up order
in a deterministic way. To use this feature, you must declare relationships
between interfaces with the `requires` keyword. This keeps the implementation
efficient. For convenience, the `requires` keyword is exported to executors
as the `IF_REQUIRES` environment variable.
in a deterministic way.
This is accomplished through a combination of manual hinting using the `requires`
keyword and dependency learning using native executors.
For compatibility with some legacy ifupdown executors, we also provide the
`requires` keyword under other environment variables in some cases.