Add ZipSource.fromSeqPath (#352)

This enables something like this `os.zip(dest / "docusaurus.zip",
os.list(wd / "build"))`

Author: joan38

os/src/ZipOps.scala

@@ -219,10 +219,10 @@ object zip {
   class ZipSource private[os] (val src: os.Path, val dest: Option[os.SubPath])
   object ZipSource {
     implicit def fromPath(src: os.Path): ZipSource = new ZipSource(src, None)
+    implicit def fromSeqPath(srcs: Seq[os.Path]): Seq[ZipSource] = srcs.map(fromPath)
     implicit def fromPathTuple(tuple: (os.Path, os.SubPath)): ZipSource =
       new ZipSource(tuple._1, Some(tuple._2))
   }
-
 }
 
 object unzip {

os/test/src/ZipOpTests.scala

@@ -176,6 +176,17 @@ object ZipOpTests extends TestSuite {
       assert(paths == expected)
     }
 
+    test("zipList") - prep { wd =>
+      val sources = wd / "folder1"
+      val zipFilePath = os.zip(
+        dest = wd / "my.zip",
+        sources = os.list(sources)
+      )
+
+      val expected = os.unzip.list(source = zipFilePath).map(_.resolveFrom(sources)).toSet
+      assert(os.list(sources).toSet == expected)
+    }
+
     test("unzipStream") - prep { wd =>
       // Step 1: Create an in-memory ZIP file as a stream
       val zipStreamOutput = new ByteArrayOutputStream()