Module capture 

Runtime reader for the fingerprint.json embedded in the binary.

The companion build module (feature dependency-graph-build) writes fingerprint.json to $OUT_DIR at compile time. The downstream binary embeds it with:

const BUILD_TIME_FINGERPRINT: &str = include_str!(concat!(env!("OUT_DIR"), "/fingerprint.json"));

Functions

• parse — deserialises the embedded JSON into a typed BuildTimeFingerprintData struct. Returns CaptureError if the JSON is malformed or a required section is absent.

Concerns

• The data is a read-only snapshot fixed at compile time. It reflects the build environment at the time of compilation, not the current runtime state.
• The fingerprint resides as plain text in the binary’s read-only data section. It is neither encrypted nor obfuscated and is visible to anyone with access to the binary.

Structs

BuildInfo

Build environment section.

BuildTimeFingerprintData

Parsed contents of fingerprint.json.

PackageInfo

Package identity section.

Enums

CaptureError

Errors that can occur while reading a captured fingerprint.

Functions

parse

Parse the embedded fingerprint JSON into a typed BuildTimeFingerprintData.

Attribute Macros

dependencies

Embed and bind the build-time fingerprint.json in one expression.