/// <summary>
/// Extract filenames from Git changes.
/// </summary>
/// <param name="changes">Git changes.</param>
/// <param name="settings">Settings.</param>
/// <returns>The list of files.</returns>
protected virtual List <string> ProcessTreeChanges(TreeChanges changes, SqlServerPackagerSettings settings)
{
var files = new List <string>();
foreach (var change in changes)
{
switch (change.Status)
{
case ChangeKind.Added:
case ChangeKind.Modified:
case ChangeKind.Renamed:
case ChangeKind.Copied:
var ext = Path.GetExtension(change.Path);
if (ext.Equals(settings.Extension, StringComparison.InvariantCultureIgnoreCase))
{
var filename = Path.Combine(settings.ScriptsFolder, change.Path);
files.Add(filename);
}
break;
}
}
return(files);
}
/// <summary>
/// Returns the list of SQL scripts for packaging.
/// </summary>
/// <param name="settings">Settings.</param>
/// <returns>The list of files.</returns>
public virtual List <string> GetFiles(SqlServerPackagerSettings settings)
{
if (string.IsNullOrWhiteSpace(settings.Tag) && string.IsNullOrWhiteSpace(settings.Commit))
{
throw new InvalidOperationException("You should provide Tag or Commit to load changes from Git");
}
using (var git = new Repository(settings.ScriptsFolder))
{
var files = new List <string>();
var lastCommit = FindCommit(git, settings);
if (string.IsNullOrWhiteSpace(lastCommit))
{
throw new InvalidOperationException("Tag and Commit are not found");
}
Logger.Log($"Processing changes till {lastCommit}");
var filter = new CommitFilter {
ExcludeReachableFrom = lastCommit
};
var commits = git.Commits.QueryBy(filter).ToArray();
if (commits.Length == 0)
{
return(files);
}
else if (commits.Length == 1)
{
var newCommit = commits.First();
var changes = git.Diff.Compare <TreeChanges>(newCommit.Parents.First().Tree, newCommit.Tree);
files.AddRange(ProcessTreeChanges(changes, settings));
}
else
{
var newCommit = commits[0];
for (int i = 1; i < commits.Length; i++)
{
var oldCommit = commits[i];
if (settings.ExcludedChagesets.Contains(oldCommit.Sha))
{
// Skip the change completely
i++;
if (i == commits.Length)
{
// It was the last commit which we're going to skip.
break;
}
newCommit = commits[i];
continue;
}
var changes = git.Diff.Compare <TreeChanges>(oldCommit.Tree, newCommit.Tree);
files.AddRange(ProcessTreeChanges(changes, settings));
newCommit = oldCommit;
}
}
return(files.Distinct().ToList());
}
}
/// <summary>
/// Create an instance of SqlServerPackagerRunner class.
/// </summary>
/// <param name="settings">Packager settings.</param>
/// <param name="logger">Cake logger.</param>
public SqlServerPackagerRunner(SqlServerPackagerSettings settings, ICakeLog logger)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
_settings = settings;
Logger.LogEngine = logger;
}
public static void SqlServerPackager(this ICakeContext context, SqlServerPackagerSettings settings)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var runner = new SqlServerPackagerRunner(settings, context.Log);
runner.Package();
}
/// <summary>
/// Find target Git changest.
/// </summary>
/// <param name="git">Repository.</param>
/// <param name="settings">Settings.</param>
/// <returns>Target changeset hash.</returns>
protected virtual string FindCommit(Repository git, SqlServerPackagerSettings settings)
{
string commit = null;
if (!string.IsNullOrWhiteSpace(settings.Tag))
{
var tag = git.Tags[settings.Tag];
commit = tag.Target.Sha;
}
if (!string.IsNullOrWhiteSpace(settings.Commit))
{
commit = settings.Commit;
}
return(commit);
}
/// <summary>
/// Returns the list of SQL scripts for packaging.
/// </summary>
/// <param name="settings">Settings.</param>
/// <returns>The list of files.</returns>
public virtual List <string> GetFiles(SqlServerPackagerSettings settings)
{
if (string.IsNullOrWhiteSpace(settings.ScriptsFolder))
{
throw new InvalidOperationException("ScriptsFolder is not set");
}
if (!Directory.Exists(settings.ScriptsFolder))
{
throw new InvalidOperationException($"{settings.ScriptsFolder} is not found");
}
Logger.Log($"Looking for SQL scripts at {settings.ScriptsFolder}");
var results = new List <string>();
var folders = new Queue <DirectoryInfo>();
folders.Enqueue(new DirectoryInfo(settings.ScriptsFolder));
while (folders.Count > 0)
{
var working = folders.Dequeue();
if (!working.Exists)
{
continue;
}
results.AddRange(
working.GetFiles()
.Where(f => f.Extension.Equals(settings.Extension, StringComparison.InvariantCultureIgnoreCase))
.Select(f => f.FullName));
foreach (var folder in working.GetDirectories())
{
folders.Enqueue(folder);
}
}
return(results);
}
