[WIP] Added REVIEW comment regarding info.xml files changes when merg…

…ing HearThisPack files and added unit test checks for some code changes regarding preservation of modified time (that were actually incorporated as part of HT-359)

src/HearThis/Communication/WindowsLink.cs

@@ -60,6 +60,11 @@ public bool TryListFiles(string androidPath, out string list)
 			foreach (var file in Directory.EnumerateFiles(path, "*.*"))
 			{
 				var filename = Path.GetFileName(file);
+				// REVIEW: We need to consider whether/when changes to info.xml files
+				// might need to be regarded as significant for determining which
+				// version to use in merge, since the "Check For Problems" view makes
+				// it more likely for the info file to change without any clips being
+				// modified.
 				if (filename == "info.xml")
 					continue;
 				sb.Append(filename);

src/HearThis/Script/ChapterInfo.cs

@@ -408,7 +408,10 @@ private void Save(string filePath, bool preserveModifiedTime = false)
 				throw new Exception($"Unable to save {GetType().Name} file: " + filePath, error);
 
 			if (preserveModifiedTime)
+			{
 				finfo.LastWriteTimeUtc = modified;
+				finfo.Attributes |= FileAttributes.Archive;
+			}
 		}
 
 		public string ToXmlString()

src/HearThisTests/ClipRepositoryTests.cs

@@ -1554,13 +1554,14 @@ public void ShiftClipsAtOrAfterBlockIfAllClipsAreBeforeDate_AllFilesModifiedBefo
 			const int kTestChapter = 1;
 
 			var chapterFolder = ClipRepository.GetChapterFolder(testProject, kTestBook, kTestChapter);
-			ChapterRecordingInfoBase info;
+			TestChapterInfo info;
 			if (includeClip0)
 				info = new TestChapterInfo(1, 2, 3, 8); // Intentionally omitted 4, just to make sure the logic is okay with having one missing.
 			else
 				info = new TestChapterInfo(2, 3, 8); // Intentionally omitted 4, just to make sure the logic is okay with having one missing.
 			info.RecordingInfo[1].SkippedChanged += sender => { }; // code requires us to have a handler before we can set it.
 			info.RecordingInfo[1].Skipped = true;
+			info.ExpectedPreserveModifiedTime = true;
 
 			try
 			{
@@ -1575,13 +1576,15 @@ public void ShiftClipsAtOrAfterBlockIfAllClipsAreBeforeDate_AllFilesModifiedBefo
 				// SUT
 				Assert.IsTrue(ClipRepository.ShiftClipsAtOrAfterBlockIfAllClipsAreBeforeDate(
 					testProject, kTestBook, kTestChapter, 1, DateTime.UtcNow, () => info));
+
 				Assert.AreEqual(includeClip0 ? 5 : 4, Directory.GetFiles(chapterFolder).Length);
 				Assert.That(File.Exists(Path.Combine(chapterFolder, "8.wav")));
 				Assert.That(File.Exists(Path.Combine(chapterFolder, "4.wav")));
 				Assert.That(File.Exists(Path.Combine(chapterFolder, "3.skip")));
 				Assert.That(File.Exists(Path.Combine(chapterFolder, "2.wav")));
 				Assert.IsFalse(File.Exists(Path.Combine(chapterFolder, "1.wav")));
 				Assert.AreEqual(includeClip0, File.Exists(file0));
+				Assert.AreEqual(1, info.SaveCallCount);
 
 				int i = 0;
 				if (includeClip0)
@@ -1889,6 +1892,7 @@ private class TestChapterInfo : ChapterRecordingInfoBase
 			private readonly List<ScriptLine> _recordings;
 
 			public int SaveCallCount { get; private set; }
+			public bool ExpectedPreserveModifiedTime { get; set; }
 
 			public TestChapterInfo(params int[] scriptLineNumbers)
 			{
@@ -1905,6 +1909,7 @@ public override void OnScriptBlockRecorded(ScriptLine selectedScriptBlock)
 
 			public override void Save(bool preserveModifiedTime = false)
 			{
+				Assert.AreEqual(ExpectedPreserveModifiedTime, preserveModifiedTime);
 				SaveCallCount++;
 			}
 		}

src/HearThisTests/ScriptProviderBaseTests.cs

@@ -802,6 +802,7 @@ public override void OnScriptBlockRecorded(ScriptLine scriptBlock)
 
 			public override void Save(bool preserveModifiedTime = false)
 			{
+				Assert.IsTrue(preserveModifiedTime);
 				SaveCallCount++;
 			}
 		}