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A complex upgrade project will may have many upgrade tasks (VBPs) and many rulesupgrade features. The ScriptRules feature provides a means for organizing the translation script rules into files based on upgrade features and then applying the content of those files to the upgrade tasks conditionally.
Script rules are placed in a ScriptRule.xml file one or more ScriptRule files which defines collections of script commands that may be conditionally merged with the translation script template to create different actual translation scripts. The ScriptRule syntax supports script parameters and conditional commands. This makes it possible, in one template, to describe a variety of common and task-specific upgrade commands.
ScriptRule files are also helpful for API-based upgrades tasks. These tasks use an EXE an custom migration executable implemented using gmslAPI rather than a XML script templategmBasic. The gmslAPI includes the ScriptRule class to assist with preparing a ScriptRule file content for use by the gmslAPI services.
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You may add a sample ScriptRules file from the Settings form Configuration/Template Files. |
Sample ScriptRules File
Most of the documentation for using ScriptRules is maintained in the sample ScriptRules file distributed with the product and listed below. To you this file, add it to your user folder, modify it with the rules you need, and reference it from your main script template.
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<!-- ScriptRule FileOverview Syntax The A ScriptRule file is an XML document that may contain one or more ScriptRule elements. These elements and their attributes are described below. <ScriptRule id="name" Condition="condition" > elements ScriptRule elements contain named script command collections The id attribute is the name of the ScriptRule and is also used in your translation script to activate the rule. The Condition attribute is used to control which rules are merged into to the actual translation script. <Command Condition="condition"> elements Command elements are children of a ScriptRule that specify the content that should be merged into the translation script template. The following types of Command elements are currently supported: Option Inserts commands that replace the <ScriptRule> tag in the merged transcript, typically Select, Reference, and Registry commands. Compile Inserts commands as children of the Compile block. Typically Select, Reference, Fix, and Refactor commands. Analyse Inserts commands as children of the Analyse block PreAnalyse Inserts commands before the Analyse block, typically refactor commands PostAnalyse Inserts commands after the Analyse block, typically refactor commands Author InsertsScriptRule.xml file defines named collections of script commands that may be conditionally merged with the template translation script creating different actual translation scripts. This makes it possible, with one template, to automate a variety of common and task-specific upgrade options. ScriptRule files are also needed for API-based upgrade tasks. These tasks use an EXE implemented using gmAPI rather than a XML script template. The gmAPI framework includes a ScriptRule class providing services to integrate ScriptRule file content with other gmAPI services. ScriptRule File Syntax A ScriptRule file is an XML document that may contain one or more ScriptRule elements. These elements and their attributes are described below. <ScriptRule id="name" Condition="condition" > elements ScriptRule elements contain named script command collections The id attribute is the name of the ScriptRule and is also used in your translation script to activate the rule. The Condition attribute is used to control which rules are merged into to the actual translation script. <Command Condition="condition"> elements Command elements are children of a ScriptRule that specify the content that should be merged into the translation script template. The following types of Command elements are currently supported: Option Inserts commands that replace the <ScriptRule> tag in the merged transcript, typically Select, Reference, and Registry commands. Load Insert commands as children of the AuthorLoad block,. typicallyTypically FixFixcommands. commands PostAuthor Compile Inserts commands after the Author block,Inserts typicallycommands topas levelchildren gmPLof commandsthe Compile block. Typically The Condition attribute is used to control which commands are merged into Select, toReference, theFix, actualand translationRefactor scriptcommands. Condition attributes A ConditionAnalyse attribute may be applied to anyInserts othercommands element.as Itchildren specifiesof the Analyse block condition underPreAnalyse which the elementInserts andcommands itsbefore childrenthe willAnalyse beblock, mergedtypically withrefactor thecommands PostAnalyse template scriptInserts tocommands createafter the Analyse actualblock, script.typically refactor commands Syntax Author Inserts commands as children %variable_expression%of op 'value_expression' the Author block, typically Fix commands where PostAuthor Inserts commands after the variable_expression all script variables and other characters op Author block, typically top level gmPL commands The Condition attribute is used to control which commands are merged into to the actual translation script. Condition attributes == true if %variable_expression% == value_expression A Condition attribute may be applied to any other element. It specifies the condition under which the element and its children will be merged !=with truethe if %variable_expression% != value_expression template script to create the actual script. Syntax =~ true if %variable_expression% matchesop regex 'value_expression' where variable_expression all script variables and other characters !~ true if %variable_expression% doesop not match regex value_expression == true if %variable_expression% == value_expression value_expression a constant string or regex pattern != true Comparisonsif are case insensitive using trimmed strings.%variable_expression% != value_expression =~ true if %variable_expression% matches regex value_expression Relational operators are not supported, but you can use Condition="var1.var2=='val1.val2'" to simulate locical AND Condition="var=~'val1|val2'" to simulate logical OR!~ true if %variable_expression% does not match regex value_expression For example Condition="%SrcName%=='ScanToolUI'" indicates that the associated value_expression element will only be mergeda forconstant upgradestring tasksor havingregex SrcNamepattern equal Comparisons are case insensitive using trimmed strings. to the string "ScanToolUI". <ForEach>, <Iterator>, and <Each> elements Relational ForEach elementsoperators are childrennot ofsupported, thebut ScriptRule.you Theycan allow repeatinguse Command elements for each file in the source project folder that meet certain criteria. This element may also be used to copy files from the source project folder to the .NET project folder. Condition="var1.var2=='val1.val2'" to simulate locical AND Condition="var=~'val1|val2'" to simulate logical OR For example Condition="%SrcName%=='ScanToolUI'" indicates that the associated The set of files to iterate overelement iswill definedonly bybe amerged <Iterator/FileInfo>for elementupgrade tasks having SrcName equal according to its attributes: The FileInfo Criteria attributeto isthe a search pattern (e.g. *.wav) used tostring "ScanToolUI". get files from the source folder. <ForEach>, <Iterator>, and <Each> elements The FileInfoForEach Fileselements attributeare maychildren beof "All" or "Top"the ScriptRule. They Theallow defaultrepeating is "All". Command elements for If Files="All", the root of the source folder and all of its sub-folders are searched; if Files="Top", only the root of the source folder is searchedeach file in a specified folder that meets certain criteria. This element may also be used to copy files from the specified folder to the .NET project folder. The CopyFilesset attributeof mayfiles beto "On"iterate or "Off". The default is "On". Ifover is defined by a <Iterator/FileInfo> element CopyFiles="on", the files found in the source project folder will be copied to the corresponding .NET project folder with directory structure preserved. The folders and files are copied prior to the translation process. Within the <Each> block, the notation %FileInfo.member% may be used to refer to information about the files found in the source folder: %FileInfo.RelativeName%: path relative to the source project root %FileInfo.Name%: file name %FileInfo.FullName%: full path %FileInfo.DirectoryName%: parent folder name Activating a ScriptRule Adding a <ScriptRule> tag to the script requests the merging of the named script collection. <ScriptRule id="name" attributeList /> The id attribute specifies the command collection to add. The attributeList specifies variables that may be referenced elsewhere in the ScriptRule. Variable references are case insensitive. For example the following ScriptRule tag: <ScriptRule id="IncludeResources" Criteria="*.wav" /> requests loading the command collection named IncludeResouces and creates a ScriptRule variable named %Criteria% with value = "*.wav" Specifying the ScriptRule file By default, the ScriptRule XML is located in a file called ScriptRule.xml and is typically kept in the workspace\usr folder. If desired, you may specify an alternate location using a FileName attributeaccording to its attributes: The FileInfo@Criteria attribute is a search pattern (e.g. *.wav) used to get files from the source folder. The FileInfo@Folder attribute specifies the folder to search for files. The default is the source folder associated with the upgrade task. %SrcFolder%, %UserFolder%, and %ProjFolder% script variables may also be used. The FileInfo@Recurse attribute may be "All" or "Top". The default is "All". If Files="All", the root of the source folder and all of its sub-folders are searched; if Files="Top", only the root of the source folder is searched. The FileInfo@CopyFiles attribute may be "On" or "Off". The default is "On". If CopyFiles="on", the files found in the source project folder will be copied to the corresponding .NET project folder with directory structure preserved. The folders and files are copied prior to the translation process. Within the <Each> block, the notation %FileInfo.member% may be used to refer to information about the files found in the source folder: %FileInfo.RelativeName%: path relative to the source project root %FileInfo.Name%: file name %FileInfo.FullName%: full path %FileInfo.DirectoryName%: parent folder name Activating a ScriptRule Adding a <ScriptRule> tag to the script requests the merging of the named script collection. <ScriptRule id="name" attributeList /> The id attribute specifies the command collection to add. The attributeList specifies variables that may be referenced elsewhere in the ScriptRule. Variable references are case insensitive. For example the following ScriptRule tag: <ScriptRule id="IncludeResources" Criteria="*.wav" /> requests loading the command collection named IncludeResouces and creates a ScriptRule variable named %Criteria% with value = "*.wav" Specifying the ScriptRule file By default, the ScriptRule XML is located in a file called ScriptRule.xml and is typically kept in the workspace\usr folder. If desired, you may specify an alternate location using a FileName attribute for example: <ScriptRule id="ADODBUpgrade" FileName="..\usr\ADODB.Rules.xml" /> The above loads the ScriptRule file named ..\usr\ADODB.Rules.xml (relative to the workspace log folder). And then merges in the ScriptRule element having id="ADODBUpgrade": <ScriptRule id="ADODBUpgrade" Condition="%TaskTag%=='upg'" > ... rules to perform ADODBUpgrade for tasks having TaskTag=='upg' ... </ScriptRule> Line Pragma The token %LN% placed in a ScriptRule file will expand to the form @ScriptRulePath@LineNumber@ in actual script. The expanded form may then be parsed by gmStudio to direct the text editor to that line of code. For example: <Replace status="active" name="%LN% Add Reference to dlls: gmRTL.Core and gmRTL.WPF" lang="vbp"> becomes <Replace status="active" name="=@C:\gmTestBed\WPFScanTool\proj_csh\usr\ScriptRules_csh.xml@105@ Add Reference to dlls: gmRTL.Core and gmRTL.WPF" lang="vbp"> This data will be placed into the Translation Log. If the log is viewed as a Grid in gmStudio, double clicking the grid line will take you to the original line in the Script Rule file. See Also: For more information, see the "Eval" VB6 Upgrade sample here https://portal.greatmigrations.com/display/GMG/Samples --> <ScriptRules> <!-- Here is a sample of the ScriptRule syntax --> <ScriptRule id="BasicRulesStandardUpgrade"> <Option> <!-- directories for configuration files --> <select Target="%UserFolder%" /> <Select Local="%IdfFromCodeFolder%" /> <Select System="%IdfFromIdlFolder%" /> <!-- translation options --> <Select Progress="1" /> <Select DevEnv="%DevEnv%" /> <Select Dialect="%Dialect%" /> <Select BuildFile="local" /> <!-- directories for deployment and external assemblies --> <select VirtualRoot="%VirtualRoot%" /> <Select DeployLocation="%NetProjFolder%" /> <Select Library="%RuntimeFolder%" /> <!-- custom processing commands --> </Option> <Compile Condition="%SrcName%=~'Project1|Project2'" > <!-- pre-edits --> <!-- compile refactors commands--> </Compile> <PreAnalyse> <!-- pre-analyse refactor commands --> </PreAnalyse> <PostAnalyse> <!-- post-analyse refactors commands--> </PostAnalyse> <Author Condition="%SrcName%=~'Project1|Project2'" > <!-- post-edits --> </Author> <PostAuthor> <!-- post-author refactors commands--> </PostAuthor> </ScriptRule> </ScriptRules> </ScriptRules> |