new "IncludeRepos" config option, backup only the repos in this list

Fixes #64

Author: christianspecht

src/ScmBackup.Tests/IncludingHosterApiCallerTests.cs

@@ -0,0 +1,52 @@
+using ScmBackup.Configuration;
+using ScmBackup.Hosters;
+using ScmBackup.Tests.Hosters;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Xunit;
+
+namespace ScmBackup.Tests
+{
+    public class IncludingHosterApiCallerTests
+    {
+        ConfigSource source;
+        IncludingHosterApiCaller sut;
+
+        public IncludingHosterApiCallerTests()
+        {
+            this.source = new ConfigSource { Title = "foo" };
+
+            var repos = new List<HosterRepository>();
+            repos.Add(new HosterRepository("foo.bar", "bar", "http://clone", ScmType.Git));
+            repos.Add(new HosterRepository("foo.baz", "baz", "http://clone", ScmType.Git));
+
+            var caller = new FakeHosterApiCaller();
+            caller.Lists.Add(this.source, repos);
+
+            this.sut = new IncludingHosterApiCaller(caller);
+        }
+
+        [Fact]
+        public void IncludesRepo()
+        {
+            this.source.IncludeRepos = new List<string> { "bar" };
+
+            var list = this.sut.GetRepositoryList(this.source);
+
+            Assert.Single(list);
+            Assert.Equal("bar", list.First().ShortName);
+        }
+
+        [Fact]
+        public void BackupsEverythingWhenNotSet()
+        {
+            // don't set this.source.IncludeRepos
+
+            var list = this.sut.GetRepositoryList(this.source);
+
+            Assert.Equal(2, list.Count);
+        }
+    }
+}

src/ScmBackup/CompositionRoot/Bootstrapper.cs

@@ -107,6 +107,7 @@ select Lifestyle.Singleton.CreateRegistration(type, container)
 
             container.RegisterInstance<IHosterApiCaller>(new HosterApiCaller(hosterFactory));
             container.RegisterDecorator<IHosterApiCaller, IgnoringHosterApiCaller>();
+            container.RegisterDecorator<IHosterApiCaller, IncludingHosterApiCaller>();
             container.RegisterDecorator<IHosterApiCaller, LoggingHosterApiCaller>();
 
             container.RegisterInstance<IHosterBackupMaker>(new HosterBackupMaker(hosterFactory));

src/ScmBackup/Configuration/ConfigSource.cs

@@ -40,6 +40,12 @@ internal class ConfigSource
         /// </summary>
         public List<string> IgnoreRepos { get; set; }
 
+
+        /// <summary>
+        /// list of repository names which should be included in the backup, all others will be ignored!
+        /// </summary>
+        public List<string> IncludeRepos { get; set; }
+
         /// <summary>
         /// password for authentication
         /// </summary>

src/ScmBackup/IncludingHosterApiCaller.cs

@@ -0,0 +1,29 @@
+using ScmBackup.Configuration;
+using ScmBackup.Hosters;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace ScmBackup
+{
+    internal class IncludingHosterApiCaller : IHosterApiCaller
+    {
+        private readonly IHosterApiCaller caller;
+
+        public IncludingHosterApiCaller(IHosterApiCaller caller)
+        {
+            this.caller = caller;
+        }
+
+        public List<HosterRepository> GetRepositoryList(ConfigSource source)
+        {
+            var list = this.caller.GetRepositoryList(source);
+
+            if (source.IncludeRepos != null && source.IncludeRepos.Any())
+            {
+                list.RemoveAll(l => !source.IncludeRepos.Contains(l.ShortName));
+            }
+
+            return list;
+        }
+    }
+}