Sigra.Install.Injection (Sigra v1.20.0)

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Structured injection descriptor for Sigra.Install.Injector.

Features return a list of %Sigra.Install.Injection{} records from the injections/1 callback in Sigra.Install.Feature; the walker passes each to Sigra.Install.Injector.apply/2, which owns marker checking and anchor resolution so every feature inherits idempotency (GEN-04) for free.

Fields

  • :target — project-relative path of the file to mutate (e.g. "lib/my_app_web/router.ex").
  • :marker — idempotency marker comment. If the file already contains this string, Injector.apply/2 is a no-op.
  • :anchor — where to insert the content. One of :before_last_end, :after_use_block, :at_top, or a custom atom routed by Injector.
  • :content — rendered code block to insert.

Per CONTEXT.md CD-03 the planner may rename these fields; this plan keeps the draft names (target/marker/anchor/content) verbatim so Wave 3 (Features.Core extraction) and Wave 4 (walker refactor) can reference them without a second rename.

Summary

Types

anchor()
t()

Types

anchor()

@type anchor() ::
  :before_last_end | :after_use_block | :at_top | :browser_pipeline | atom()

t()

@type t() :: %Sigra.Install.Injection{
  anchor: anchor(),
  content: String.t(),
  marker: String.t(),
  target: Path.t()
}