From 06c99db49e704a03001383cb73f9d5ca313ed755 Mon Sep 17 00:00:00 2001
From: Michael Vorburger <mike@vorburger.ch>
Date: Sat, 4 Jan 2025 20:05:04 +0100
Subject: [PATCH] feat(core): Add Multibash Type & Multibase encoding CLI
 options to enola info digest

---
 docs/use/info/index.md                |  7 +++++++
 java/dev/enola/cli/DigestCommand.java | 21 +++++++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/docs/use/info/index.md b/docs/use/info/index.md
index 5af7427f..a293ed92 100644
--- a/docs/use/info/index.md
+++ b/docs/use/info/index.md
@@ -91,6 +91,13 @@ $ ./enola info digest --http-scheme https://www.google.com
 ...
 ```
 
+Or alternatively:
+
+```bash cd ../.././..
+$ ./enola info digest --base=Base64Pad --type=sha2_256 --http-scheme https://www.google.com
+...
+```
+
 This _digest_ can be used e.g. in [`?integrity=...` of `fetch`](../fetch/index.md#integrity).
 
 ## Screencast
diff --git a/java/dev/enola/cli/DigestCommand.java b/java/dev/enola/cli/DigestCommand.java
index 7ca8cd1b..aa60c10e 100644
--- a/java/dev/enola/cli/DigestCommand.java
+++ b/java/dev/enola/cli/DigestCommand.java
@@ -42,6 +42,22 @@ public class DigestCommand extends CommandWithResourceProvider {
     @CommandLine.Parameters(index = "0", paramLabel = "url", description = "URL")
     String url;
 
+    @CommandLine.Option(
+            names = {"--type"},
+            required = true,
+            defaultValue = "sha2_512",
+            showDefaultValue = CommandLine.Help.Visibility.ALWAYS,
+            description = "Multihash Type")
+    Multihash.Type type;
+
+    @CommandLine.Option(
+            names = {"--base"},
+            required = true,
+            defaultValue = "Base58BTC",
+            showDefaultValue = CommandLine.Help.Visibility.ALWAYS,
+            description = "Multibase")
+    Multibase.Base multibase;
+
     @Override
     public Integer call() throws Exception {
         super.run();
@@ -51,8 +67,9 @@ public Integer call() throws Exception {
         try (var ctx = TLC.open().push(URIs.ContextKeys.BASE, Paths.get("").toUri())) {
             var resource = rp.getResource(uri);
 
-            var multihash = new ResourceHasher().hash(resource, Multihash.Type.sha2_512);
-            pw.println(Multihashes.toString(multihash, Multibase.Base.Base64));
+            var multihash = new ResourceHasher().hash(resource, type);
+            multibase = Multibase.Base.Base64;
+            pw.println(Multihashes.toString(multihash, multibase));
         }
         return 0;
     }