fix encoding of spaces in metadata source URL

Resolves memo33/sc4pac#58

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Changelog
 
 ## [Unreleased]
+### Fixed
+- an issue where building a channel with file names containing spaces failed
 
 
 ## [0.5.0] - 2024-12-14

src/main/scala/sc4pac/ChannelUtil.scala

@@ -25,6 +25,9 @@ object ChannelUtil {
     )
   }
 
+  private[sc4pac] def resolveMetadataSourceUrl(baseUri: java.net.URI, path: os.SubPath): java.net.URI =
+    baseUri.resolve(os.root.toNIO.toUri.relativize((os.root / path).toNIO.toUri))
+
   case class YamlPackageData(
     group: String,
     name: String,
@@ -50,7 +53,7 @@ object ChannelUtil {
             for {
               baseUri <- channelInfo.metadataSourceUrl
               path    <- metadataSource
-            } yield baseUri.resolve(path.segments0.mkString("/")),
+            } yield resolveMetadataSourceUrl(baseUri, path),
           channelLabel = channelInfo.channelLabel,
         )}
       }

src/test/scala/sc4pac/ChannelSpec.scala

@@ -124,6 +124,12 @@ url: dummy
       ).head._2
         .map(_.orgName).toSet.shouldBe(Set("test:pkg1", "test:pkg2"))
     }
+
+    "encode spaces in metadata source URL" in {
+      val baseUri = java.net.URI("https://github.com/memo33/sc4pac/blob/main/src/yaml/")
+      ChannelUtil.resolveMetadataSourceUrl(baseUri, os.SubPath("a b/c d.yaml"))
+        .toString.shouldBe(s"${baseUri}a%20b/c%20d.yaml")
+    }
   }
 
 }