Add timestamp to each generated file. Fix #119

filip26 · filip26 · commit 60f8f3f2b9a4 · 2026-02-07T19:15:43.000+01:00
diff --git a/src/gen/java/com/apicatalog/multicodec/CodecTag.java b/src/gen/java/com/apicatalog/multicodec/CodecTag.java
@@ -5,6 +5,7 @@
 import java.io.StringWriter;
 import java.nio.file.Files;
 import java.nio.file.Paths;
+import java.time.Instant;
 import java.util.Collection;
 import java.util.Date;
 import java.util.stream.Collectors;
@@ -23,6 +24,7 @@ public static void generate(final String tag, final String className, final Clas
             writer.println("package com.apicatalog.multicodec.codec;");
             writer.println();
             writer.println("import java.util.TreeMap;");
+            writer.println("import java.time.Instant;");
             writer.println("import java.util.Map;");
             writer.println();
             if (Multicodec.class.equals(clazz)) {
@@ -42,6 +44,9 @@ public static void generate(final String tag, final String className, final Clas
             writer.println(" {");
             writer.println();
 
+            writer.println("    public static final Instant UPDATED = Instant.parse(\"" + Instant.now().toString() + "\");");
+            writer.println();
+            
             Collection<CodecDef> defs = stream
                     .filter(columns -> tag.equals(columns[1].trim()))
                     .map(CodecDef::from)
diff --git a/src/main/java/com/apicatalog/multicodec/codec/CidCodec.java b/src/main/java/com/apicatalog/multicodec/codec/CidCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:43 CET 2026 */
 public class CidCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:43.996Z");
+
     /** Cid: cidv1, CIDv1, status = permanent, code = 0x1 */
     public static final Multicodec CIDV1 = Multicodec.of("cidv1", Tag.Cid, 0x1, Multicodec.Status.Permanent);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/HashCodec.java b/src/main/java/com/apicatalog/multicodec/codec/HashCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:43 CET 2026 */
 public class HashCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:43.991Z");
+
     /** Hash: crc32, CRC-32 non-cryptographic hash algorithm (IEEE 802.3), status = draft, code = 0x132 */
     public static final Multicodec CRC32 = Multicodec.of("crc32", Tag.Hash, 0x132, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/KeyCodec.java b/src/main/java/com/apicatalog/multicodec/codec/KeyCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:43 CET 2026 */
 public class KeyCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:43.909Z");
+
     /** Key: aes-128, 128-bit AES symmetric key, status = draft, code = 0xa0 */
     public static final Multicodec AES_128_KEY = Multicodec.of("aes-128", Tag.Key, 0xa0, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/MultiaddrCodec.java b/src/main/java/com/apicatalog/multicodec/codec/MultiaddrCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:43 CET 2026 */
 public class MultiaddrCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:43.987Z");
+
     /** Multiaddr: certhash, TLS certificate's fingerprint as a multihash, status = draft, code = 0x1d2 */
     public static final Multicodec CERTHASH = Multicodec.of("certhash", Tag.Multiaddr, 0x1d2, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/MulticodecRegistry.java b/src/main/java/com/apicatalog/multicodec/codec/MulticodecRegistry.java
@@ -109,8 +109,10 @@ public static final MulticodecRegistry getInstance(final Multicodec... codecs) {
             throw new IllegalArgumentException("At least one codec must be provided.");
         }
 
-        return new MulticodecRegistry(Arrays.stream(codecs)
-                .collect(Collectors.toMap(Multicodec::code, Function.identity())));
+        return new MulticodecRegistry(
+                Arrays
+                        .stream(codecs)
+                        .collect(Collectors.toMap(Multicodec::code, Function.identity())));
     }
 
     /**
diff --git a/src/main/java/com/apicatalog/multicodec/codec/MultiformatCodec.java b/src/main/java/com/apicatalog/multicodec/codec/MultiformatCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:44 CET 2026 */
 public class MultiformatCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:44Z");
+
     /** Multiformat: caip-50, CAIP-50 multi-chain account ID, status = draft, code = 0xca */
     public static final Multicodec CAIP_50 = Multicodec.of("caip-50", Tag.Multiformat, 0xca, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/MultihashCodec.java b/src/main/java/com/apicatalog/multicodec/codec/MultihashCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec;
 import com.apicatalog.multihash.Multihash;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:43 CET 2026 */
 public class MultihashCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:43.954Z");
+
     /** Multihash: bcrypt-pbkdf, Bcrypt-PBKDF key derivation function, status = draft, code = 0xd00d */
     public static final Multihash BCRYPT_PBKDF = Multihash.of("bcrypt-pbkdf", 0xd00d, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/NamespaceCodec.java b/src/main/java/com/apicatalog/multicodec/codec/NamespaceCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:43 CET 2026 */
 public class NamespaceCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:43.998Z");
+
     /** Namespace: arweave-ns, Arweave Namespace, status = draft, code = 0xb29910 */
     public static final Multicodec ARWEAVE_NS = Multicodec.of("arweave-ns", Tag.Namespace, 0xb29910, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/SerializationCodec.java b/src/main/java/com/apicatalog/multicodec/codec/SerializationCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:44 CET 2026 */
 public class SerializationCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:44.002Z");
+
     /** Serialization: bencode, bencode, status = draft, code = 0x63 */
     public static final Multicodec BENCODE = Multicodec.of("bencode", Tag.Serialization, 0x63, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/TransportCodec.java b/src/main/java/com/apicatalog/multicodec/codec/TransportCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:44 CET 2026 */
 public class TransportCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:44.004Z");
+
     /** Transport: transport-bitswap, Bitswap datatransfer, status = draft, code = 0x900 */
     public static final Multicodec TRANSPORT_BITSWAP = Multicodec.of("transport-bitswap", Tag.Transport, 0x900, Multicodec.Status.Draft);
 
diff --git a/src/main/java/com/apicatalog/multicodec/codec/VarsigCodec.java b/src/main/java/com/apicatalog/multicodec/codec/VarsigCodec.java
@@ -1,14 +1,17 @@
 package com.apicatalog.multicodec.codec;
 
 import java.util.TreeMap;
+import java.time.Instant;
 import java.util.Map;
 
 import com.apicatalog.multicodec.Multicodec.Tag;
 import com.apicatalog.multicodec.Multicodec;
 
-/** Multicodec Registry - generated: Sat Feb 07 01:16:25 CET 2026 */
+/** Multicodec Registry - generated: Sat Feb 07 19:12:44 CET 2026 */
 public class VarsigCodec {
 
+    public static final Instant UPDATED = Instant.parse("2026-02-07T18:12:44.006Z");
+
     /** Varsig: bls12_381-g1-sig, G1 signature for BLS12-381, status = draft, code = 0xd0ea */
     public static final Multicodec BLS12_381_G1_SIG = Multicodec.of("bls12_381-g1-sig", Tag.Varsig, 0xd0ea, Multicodec.Status.Draft);
 

Original file line number	Diff line number	Diff line change
`@@ -109,8 +109,10 @@ public static final MulticodecRegistry getInstance(final Multicodec... codecs) {`
`109`	`109`	`throw new IllegalArgumentException("At least one codec must be provided.");`
`110`	`110`	`}`
`111`	`111`
`112`		`- return new MulticodecRegistry(Arrays.stream(codecs)`
`113`		`- .collect(Collectors.toMap(Multicodec::code, Function.identity())));`
	`112`	`+ return new MulticodecRegistry(`
	`113`	`+ Arrays`
	`114`	`+ .stream(codecs)`
	`115`	`+ .collect(Collectors.toMap(Multicodec::code, Function.identity())));`
`114`	`116`	`}`
`115`	`117`
`116`	`118`	`/**`