Documentation
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Overview ¶
Package configenv expands ${VAR} and ${VAR:-default} placeholders in a configuration document before it is parsed.
It is its own package rather than a corner of pkg/platform because the substitution rule is a contract two audiences depend on -- every shipped config writes against it, and every operator reads a failure through it -- and because pkg/platform is at its size budget: a package that must not grow is not where a self-contained rule belongs.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
func Unexpanded ¶ added in v1.133.4
Unexpanded returns the distinct "${" fragments standing in s, in the order they appear. An empty result means every placeholder was substituted, or that there were none.
Expansion is a configuration-FILE feature: a value that arrives any other way is used exactly as it was written. So the same fragment this package warns about in a file is, for a caller that stores a value directly, always a mistake — a database-managed connection holding "${TRINO_USER}" as its username is stored, listed and reported as created, and fails every call afterwards at DSN construction (#1805). Exported so that caller can refuse it at the point it is written rather than warn about it at startup.
Types ¶
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Source Files