From 715aa435b7d12265cbc041fff126bc1f9f653984 Mon Sep 17 00:00:00 2001
From: Martin Czygan <martin.czygan@gmail.com>
Date: Tue, 27 Jul 2021 00:10:20 +0200
Subject: cleanup and docs

---
 skate/schema.go | 29 ++++-------------------------
 1 file changed, 4 insertions(+), 25 deletions(-)

diff --git a/skate/schema.go b/skate/schema.go
index b69f206..7717f9f 100644
--- a/skate/schema.go
+++ b/skate/schema.go
@@ -512,8 +512,10 @@ func (b *BiblioRef) Reset() {
 	b.TargetCSL = nil
 }
 
-// Hash returns a string that will be the same, if source and target are
-// equal; different otherwise. This can be used to detect duplicate links.
+// LinkHash returns a string that will be the same, if source and target are
+// equal; different otherwise. This can be used to detect duplicate links. This
+// should always return a non-empty string, but would return an empty string,
+// if it would fail.
 func (b *BiblioRef) LinkHash() string {
 	switch {
 	case b.SourceReleaseIdent != "" && b.TargetReleaseIdent != "":
@@ -540,29 +542,6 @@ func (b *BiblioRef) LinkHash() string {
 	}
 }
 
-// ReleaseCluster, a list of match candidates. This is typically serialized as a
-// single JSON line containing the match key and a list of release documents.
-//
-// Deprecated, since we are moving to a "two stream" generic "join" style
-// processing.
-type ReleaseCluster struct {
-	Key    string     `json:"k"`
-	Values []*Release `json:"v"`
-}
-
-// OneNonRef returns the first non-reference release found in a cluster, or an
-// error, if none has been found. This depends on converted references setting
-// extra.skate.status to "ref" - we use this in mixed clusters (catalog entries
-// and references converted into releases).
-func (rc *ReleaseCluster) OneNonRef() (*Release, error) {
-	for _, re := range rc.Values {
-		if re.Extra.Skate.Status != "ref" {
-			return re, nil
-		}
-	}
-	return nil, fmt.Errorf("no reference/release found for cluster key: %v", rc.Key)
-}
-
 // MinimalCitations variant from
 // archive.org/details/wikipedia_citations_2020-07-14. Part of the naming was
 // already inconsistent.
-- 
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