/// <summary>
/// Processes the template using passed Template Inputs and the handlebars template name. These inputs can be from a variety of sources including direct schema (useful for caching scenarios), filename and connection strings.
/// </summary>
/// <returns><c>true</c>, if template was processed, <c>false</c> otherwise.</returns>
/// <param name="templateFileName">File name of an existing handlebars template file name</param>
/// <param name="originalTemplateInputSource">Original template input source. Pass the input to here if you want to generate using only 1 schema</param>
/// <param name="compareToTemplateInputSource">Optional - Compare to template input source. This will process only the differences. </param>
/// <param name="outputPath">The output path. If there is no <FILE>FILENAMEHERE</FILE> specifier, then this should be a file name, if there is a file specifier, then it will write to the file resolved between the FILE tags</param>
protected ReturnCodes ProcessTemplate(FileName _templateFileName, ITemplateInput originalTemplateInputSource, ITemplateInput compareToTemplateInputSource, string outputPath)
{
FileActions.Clear();
Configuration EzDbConfig = null;
this.OutputPath = outputPath;
string templateFileName = _templateFileName;
_currentTemplateName = Path.GetFileNameWithoutExtension(templateFileName);
if (!File.Exists(templateFileName))
{
templateFileName = ("{ASSEMBLY_PATH}" + templateFileName).ResolvePathVars();
}
CurrentTask = "Entering ProcessTemplate";
var returnCode = ReturnCode.OkNoAddDels;
try
{
CurrentTask = string.Format("Trying to find Config file at {0}", ConfigurationFileName);
if (File.Exists(ConfigurationFileName))
{
CurrentTask = string.Format("Config file found! lets read it");
EzDbConfig = Configuration.FromFile(ConfigurationFileName);
foreach (var item in EzDbConfig.PluralizerCrossReference)
{
Pluralizer.Instance.AddWord(item.SingleWord, item.PluralWord);
}
if (!string.IsNullOrEmpty(EzDbConfig.Database.SchemaName))
{
CurrentTask = string.Format("Schema name has been changed from {0} to {1} by configuration file.", this.SchemaName, EzDbConfig.Database.SchemaName);
this.SchemaName = EzDbConfig.Database.SchemaName;
}
}
else
{
ErrorMessage(string.Format("WARNING! Configuration file was not found at {0}", ConfigurationFileName));
}
CurrentTask = "Performing Validations";
if (originalTemplateInputSource == null)
{
throw new Exception(@"There must be an Template Source passed through originalTemplateInputSource!");
}
CurrentTask = "Loading Source Schema";
IDatabase schema = originalTemplateInputSource.LoadSchema(EzDbConfig);
schema.Name = this.SchemaName;
if (schema == null)
{
throw new Exception(@"originalTemplateInputSource is not a valid template");
}
CurrentTask = "Template path is " + templateFileName;
string result = "";
try
{
CurrentTask = string.Format("Reading Template from '{0}'", templateFileName);
var templateAsString = File.ReadAllText(templateFileName);
var forceDeleteReloadOfDirectory = false;
//Does template have a project path override? If so, extract it and stash it
if (templateAsString.Contains(CodeGenBase.OP_PROJECT_PATH))
{
this.ProjectPath = templateAsString.Pluck(CodeGenBase.OP_PROJECT_PATH, CodeGenBase.OP_PROJECT_PATH_END, out templateAsString).Trim();
if (this.ProjectPath.StartsWith("@")) //An @ at the beginning forces the app to treat this as a path and delete and attempt to recreate it
{
this.ProjectPath = this.ProjectPath.Substring(1);
CurrentTask = string.Format("'@' was found at the beginning of ProjectPath but doesn't do anything here and will be ignored");
}
if (this.ProjectPath.Contains(CodeGenBase.VAR_THIS_PATH))
{
this.ProjectPath = Path.GetFullPath(this.ProjectPath.Replace(CodeGenBase.VAR_THIS_PATH, Path.GetDirectoryName(templateFileName).PathEnds()));
}
if (this.ProjectPath.Contains(CodeGenBase.VAR_TEMP_PATH))
{
this.ProjectPath = Path.GetFullPath(this.ProjectPath.Replace(CodeGenBase.VAR_TEMP_PATH, Path.GetDirectoryName(templateFileName).PathEnds()));
}
CurrentTask = string.Format("Project Path modifier found in template, resolved to: {0}", this.ProjectPath);
templateAsString = templateAsString.Replace(CodeGenBase.OP_PROJECT_PATH, "").Replace(CodeGenBase.OP_PROJECT_PATH_END, "").Trim();
}
//Does template have and Output path override? if so, override the local outputDirectory and strip it
if (templateAsString.Contains(CodeGenBase.OP_OUTPUT_PATH))
{
this.OutputPath = templateAsString.Pluck(CodeGenBase.OP_OUTPUT_PATH, CodeGenBase.OP_OUTPUT_PATH_END, out templateAsString).Trim();
if (this.OutputPath.StartsWith("@")) //An @ at the beginning forces the app to treat this as a path and delete and attempt to recreate it
{
this.OutputPath = this.OutputPath.Substring(1);
CurrentTask = string.Format("'@' was found at the beginning... Will forcefully delete: {0}", this.OutputPath);
forceDeleteReloadOfDirectory = true;
}
if (this.OutputPath.Contains(CodeGenBase.VAR_THIS_PATH))
{
this.OutputPath = Path.GetFullPath(this.OutputPath.Replace(CodeGenBase.VAR_THIS_PATH, Path.GetDirectoryName(templateFileName).PathEnds()));
}
if (this.OutputPath.Contains(CodeGenBase.VAR_TEMP_PATH))
{
this.OutputPath = Path.GetFullPath(this.OutputPath.Replace(CodeGenBase.VAR_TEMP_PATH, Path.GetDirectoryName(templateFileName).PathEnds()));
}
CurrentTask = string.Format("Output Path modifier found in template, resolved to: {0}", this.OutputPath);
//If we asked for a force of a reload and if we don't contain a file operator, then the output path must be a single file result.
// Forcing this to be created will prevent us from writing this file out, so we will ignore that force directory operator in this case
if (forceDeleteReloadOfDirectory)
{
if (templateAsString.Contains(CodeGenBase.OP_FILE))
{
if (Directory.Exists(this.OutputPath))
{
Directory.Delete(this.OutputPath, true);
}
if (!Directory.Exists(this.OutputPath))
{
Directory.CreateDirectory(this.OutputPath);
}
}
else
{
var OutputDirectoryContainer = Path.GetDirectoryName(this.OutputPath).PathEnds();
if (File.Exists(this.OutputPath))
{
File.Delete(this.OutputPath);
}
if (!Directory.Exists(OutputDirectoryContainer))
{
Directory.CreateDirectory(OutputDirectoryContainer);
}
}
}
templateAsString = templateAsString.Replace(CodeGenBase.OP_OUTPUT_PATH, "").Replace(CodeGenBase.OP_OUTPUT_PATH_END, "").Trim();
}
if (!File.Exists(templateFileName))
{
throw new FileNotFoundException("Template File " + templateFileName + " is not found");
}
CurrentTask = string.Format("Checking to see if outpath of {0} exists?", this.OutputPath);
if (string.IsNullOrEmpty(this.OutputPath))
{
throw new Exception(string.Format("Output Path was not passed through ProcessTemplate nor did <OUTPUT_PATH /> exist in the hbs template {1}. It must exist in one or the other.", this.OutputPath, templateFileName));
}
CurrentTask = string.Format("Registering Handlbar helpers");
HandlebarsUtility.RegisterHelpers();
HandlebarsCsUtility.RegisterHelpers();
HandlebarsCsV0Utility.RegisterHelpers();
HandlebarsTsUtility.RegisterHelpers();
CurrentTask = string.Format("Compiling Handlbar Template");
var template = Handlebars.Compile(templateAsString);
CurrentTask = string.Format("Rendering Handlbar Template");
result = template(schema);
}
catch (Exception exTemplateError)
{
returnCode = ReturnCode.Error;
ErrorMessage(string.Format("{0}: Error while {1}. {2}", Path.GetFileNameWithoutExtension(templateFileName), CurrentTask, exTemplateError.Message));
throw;
//throw exRazerEngine;
}
finally
{
}
result = result.Replace("<t>", "")
.Replace("<t/>", "")
.Replace("<t />", "")
.Replace("</t>", "")
.Replace("$OUTPUT_PATH$", this.OutputPath).TrimStart();
CurrentTask = string.Format("Template Rendering Completed.. handling output now");
/* If the entity key specifier doesn't exist */
var hasEntityKeySpecifier = result.Contains(CodeGenBase.OP_ENTITY_KEY);
CurrentTask = string.Format("Does the file contain FILE operator?");
if (result.Contains(CodeGenBase.OP_FILE)) /* File seperation specifier - this will split by the files specified by */
{
if (!Directory.Exists(this.OutputPath)) //This does contain a FILE specifier, so we need to make this a directoy and try to create it if it doesn't exist
{
this.OutputPath = Path.GetDirectoryName(this.OutputPath).PathEnds();
CurrentTask = string.Format("It doesn't... so lets try to create it");
Directory.CreateDirectory(this.OutputPath);
}
CurrentTask = string.Format("Parsing files");
/* First, lets get all the files currently in the path */
FileActions.Clear();
string[] FilesinOutputDirectory = Directory.GetFiles(this.OutputPath);
foreach (var fileName in FilesinOutputDirectory)
{
FileActions.Add(fileName, TemplateFileAction.Unknown);
}
var FileListAndContents = new EntityFileDictionary();
string[] parseFiles = result.Split(new[] { CodeGenBase.OP_FILE }, StringSplitOptions.RemoveEmptyEntries);
var EntityKey = "";
foreach (string fileText in parseFiles)
{
var filePart = CodeGenBase.OP_FILE + fileText; //need to add the delimiter to make pluck work as expected
string newOutputFileName = filePart.Pluck(CodeGenBase.OP_FILE, CodeGenBase.OP_FILE_END, out string FileContents);
FileContents = FileContents.Replace(CodeGenBase.OP_FILE, "").Replace(CodeGenBase.OP_FILE_END, "").Trim();
if ((newOutputFileName.Length > 0) && (newOutputFileName.StartsWith(this.OutputPath, StringComparison.Ordinal)))
{
EntityKey = "XXX" + Guid.NewGuid().ToString(); /* guaruntee this to be unique */
//var FileContents = filePart.Substring(CodeGenBase.OP_FILE_END.Length + 1);
if (FileContents.Contains(CodeGenBase.OP_ENTITY_KEY))
{
EntityKey = FileContents.Pluck(CodeGenBase.OP_ENTITY_KEY, CodeGenBase.OP_ENTITY_KEY_END, out FileContents);
FileContents = FileContents.Replace(CodeGenBase.OP_ENTITY_KEY, "").Replace(CodeGenBase.OP_ENTITY_KEY_END, "").Trim();
}
FileListAndContents.Add(newOutputFileName, EntityKey, FileContents);
}
}
CurrentTask = string.Format("Handling the output file");
var EffectivePathOption = this.TemplatePathOption;
IDatabase schemaToCompareTo = null;
if (EffectivePathOption == TemplatePathOption.Auto)
{
EffectivePathOption = TemplatePathOption.Clear;
if ((compareToTemplateInputSource != null) && (hasEntityKeySpecifier))
{
schemaToCompareTo = compareToTemplateInputSource.LoadSchema(EzDbConfig);
if (schemaToCompareTo == null)
{
throw new Exception(@"schemaToCompareTo is not a valid template");
}
EffectivePathOption = TemplatePathOption.SyncDiff;
}
}
if (EffectivePathOption.Equals(TemplatePathOption.Clear))
{
StatusMessage("Path Option is set to 'Clear'");
foreach (var fileName in FileActions.Keys.ToList())
{
FileActions[fileName] = TemplateFileAction.Delete;
}
}
else if (EffectivePathOption.Equals(TemplatePathOption.SyncDiff))
{
StatusMessage("Path Option is set to 'SyncDiff'");
var SchemaDiffs = schema.CompareTo(schemaToCompareTo);
StatusMessage(string.Format("There where {0} differences between the schemas", SchemaDiffs.Count));
if (SchemaDiffs.Count > 0)
{
foreach (var schemaDiff in SchemaDiffs)
{
var entityName = schemaDiff.EntityName;
FileName fileName = "";
if (schemaDiff.FileAction == TemplateFileAction.Add)
{
if (FileActions.ContainsKey(fileName))
{
/* this should not happen; but if it does */
FileActions[fileName] = TemplateFileAction.Update;
}
else
{
FileActions.Add(fileName, TemplateFileAction.Add);
}
}
else if (schemaDiff.FileAction == TemplateFileAction.Update)
{
if (FileActions.ContainsKey(fileName))
{
FileActions[fileName] = TemplateFileAction.Update;
}
else
{
FileActions.Add(fileName, TemplateFileAction.Add);
}
}
else if (schemaDiff.FileAction == TemplateFileAction.Delete)
{
if (FileActions.ContainsKey(fileName))
{
FileActions[fileName] = TemplateFileAction.Delete;
}
else
{
FileActions.Add(fileName, TemplateFileAction.Delete);
}
}
}
}
}
else if (EffectivePathOption.Equals(TemplatePathOption.Update))
{
StatusMessage("Path Option is set to 'Update'");
}
CurrentTask = string.Format("Queueing file actions");
//Lets now make sure all of those files that should be rendered are there
foreach (string fileName in FileListAndContents.ClonePrimaryKeys())
{
if ((FileActions.ContainsKey(fileName)))
{
//if the file exists and it is slated to be deleted and if it was going to be a generated, then mark it as an update
if (FileActions[fileName] == TemplateFileAction.Delete)
{
FileActions[fileName] = TemplateFileAction.Update;
}
else
{
FileActions[fileName] = TemplateFileAction.None;
}
}
else
{
FileActions.Add(fileName, TemplateFileAction.Add);
}
}
CurrentTask = string.Format("Performing file actions");
var Deletes = 0; var Updates = 0; var Adds = 0;
/* Process File Actions based on which Template File action*/
foreach (string fileName in FileActions.Keys.ToList())
{
CurrentTask = string.Format("Performing file actions on {0} (Action={1})", fileName, FileActions[fileName]);
if ((FileActions[fileName] == TemplateFileAction.Delete) ||
(FileActions[fileName] == TemplateFileAction.Unknown))
{
if (File.Exists(fileName))
{
File.Delete(fileName);
Deletes++;
}
}
else if (FileActions[fileName] == TemplateFileAction.Update)
{
//We do not need to update if the file contents are the same
if (!FileListAndContents[(FileName)fileName].IsEqualToFileContents(fileName))
{
Updates++;
//if (File.Exists(fileName)) File.Delete(fileName);
File.WriteAllText(fileName, FileListAndContents[(FileName)fileName]);
}
}
else if (FileActions[fileName] == TemplateFileAction.Add)
{
Adds++;
File.WriteAllText(fileName, FileListAndContents[(FileName)fileName]);
}
}
StatusMessage(string.Format("File Action Counts: Adds={0}, Updates={1}, Deletes={2}", Adds, Updates, Deletes), true);
if ((Adds > 0) || (Deletes > 0))
{
returnCode = ReturnCode.OkAddDels;
}
}
else if (!string.IsNullOrEmpty(result))
{
if (File.Exists(OutputPath))
{
File.Delete(OutputPath);
}
File.WriteAllText(OutputPath, result);
}
else
{
throw new ApplicationException("The Template Engine Produced No results for path [" + templateFileName + "]");
}
StatusMessage(string.Format("Template was rendered to path {0}", this.OutputPath));
CurrentTask = string.Format("Checking Project File Modification Option: {0}", (this.ProjectPath.Length > 0));
if (this.ProjectPath.Length > 0)
{
CurrentTask = string.Format("Looks like Project Mod was set to true, Does path exist? ");
if (!File.Exists(this.ProjectPath))
{
StatusMessage(string.Format("ProjectPath was set to {0} but this file doesn't exist, I will ignore ProjectPath option", this.ProjectPath));
}
else
{
StatusMessage(string.Format("ProjectPath was set to {0}, so we will alter this project with the files affected if necessary", this.ProjectPath));
var FileActionsOffset = new Dictionary <string, TemplateFileAction>();
CurrentTask = string.Format("Figuring out offset of files added compared to Project location");
foreach (var fileWithFileAction in FileActions)
{
var fileOffset = (new Uri(this.ProjectPath))
.MakeRelativeUri(new Uri(fileWithFileAction.Key))
.ToString()
.Replace('/', Path.DirectorySeparatorChar);
CurrentTask = string.Format("Project File Check: {0}", fileOffset);
FileActionsOffset.Add(fileOffset, fileWithFileAction.Value);
}
CurrentTask = string.Format("Now we modify the project file {0}", this.ProjectPath);
var ret = (new ProjectHelpers()).ModifyClassPath(this.ProjectPath, FileActionsOffset);
if (ret)
{
StatusMessage(string.Format("There were changes to {0}, project will probably have to be reloaded", this.ProjectPath));
}
else
{
StatusMessage(string.Format("There were no changes to {0}", this.ProjectPath));
}
}
}
CurrentTask = string.Format("All done!");
return(new ReturnCodes(templateFileName, returnCode));
}
catch (Exception ex)
{
returnCode = ReturnCode.Error;
ErrorMessage(string.Format("{0}: Error while {1}. {2}", Path.GetFileNameWithoutExtension(templateFileName), CurrentTask, ex.Message));
throw;
}
}
