Merge pull request #7486 from fricklerhandwerk/doc-reference
reword definition of "reference"
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6f22e8b7d8
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@ -135,14 +135,13 @@
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then be built.
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then be built.
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- [reference]{#gloss-reference}\
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- [reference]{#gloss-reference}\
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A store path `P` is said to have a reference to a store path `Q` if
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A [store object] `O` is said to have a *reference* to a store object `P` if a [store path] to `P` appears in the contents of `O`.
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the store object at `P` contains the path `Q` somewhere. The
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*references* of a store path are the set of store paths to which it
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has a reference.
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A derivation can reference other derivations and sources (but not
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Store objects can refer to both other store objects and themselves.
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output paths), whereas an output path only references other output
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References from a store object to itself are called *self-references*.
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paths.
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References other than a self-reference must not form a cycle.
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[reference]: #gloss-reference
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- [reachable]{#gloss-reachable}\
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- [reachable]{#gloss-reachable}\
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A store path `Q` is reachable from another store path `P` if `Q`
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A store path `Q` is reachable from another store path `P` if `Q`
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@ -159,8 +158,8 @@
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files could be missing. The command `nix-store -qR` prints out
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files could be missing. The command `nix-store -qR` prints out
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closures of store paths.
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closures of store paths.
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As an example, if the store object at path `P` contains a reference
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As an example, if the [store object] at path `P` contains a [reference]
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to path `Q`, then `Q` is in the closure of `P`. Further, if `Q`
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to a store object at path `Q`, then `Q` is in the closure of `P`. Further, if `Q`
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references `R` then `R` is also in the closure of `P`.
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references `R` then `R` is also in the closure of `P`.
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[closure]: #gloss-closure
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[closure]: #gloss-closure
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