Record the inputs of a build's source fingerprint in its build record (issue 1215)

internal/builder/builder.go

@@ -21,6 +21,7 @@ import (
 	"strings"
 	"time"
 
+	"git.novox.be/novox/mesh-sdk/go/delivery"
 	"github.com/novox/mesh-controller/internal/catalogue"
 )
 
@@ -91,6 +92,10 @@ type Result struct {
 	// (novox/hq issue 280).
 	Source string
 
+	// SourceInputs are what Source was computed from (novox/hq ADR 0437 §5, issue 1215), set also where the source
+	// does not pin the build, so the reason is visible: with them delivery.SourceFingerprint gives Source again.
+	SourceInputs *delivery.SourceInputs
+
 	// ReuseKey is the build's reuse key (novox/hq ADR 0350 §1): its source fingerprint's parts with the builder's
 	// version, and ReuseParts those parts; empty, with NoKey saying why, where the source does not pin the build.
 	ReuseKey   string
@@ -491,7 +496,7 @@ func build(ctx context.Context, run Runner, publish Publisher,
 	// The reuse key (novox/hq ADR 0350 §1): what a check keeps its build under, and what a walk takes one by.
 	key := keyOf(src, manifest, Version)
 	return Result{Manifest: resolved, Commit: commit, Built: built,
-		Against: against(within, manifest, stoodOn), Read: readBy(manifest), Source: fingerprint,
+		Against: against(within, manifest, stoodOn), Read: readBy(manifest), Source: fingerprint, SourceInputs: resultInputs(src),
 		Trunk: trunk, OnTrunk: onTrunk, Branches: branches, Sources: sources,
 		ReuseKey: key.Key, ReuseParts: key.Parts, NoKey: key.Why, Reused: reused, Why: builtWhy,
 		Predefined: listed}, nil