[Java] Class Groovyc

  • org.codehaus.groovy.ant.Groovyc

Compiles Groovy source files using Ant.

Typically involves using Ant from the command-line and an Ant build file such as:

 <?xml version="1.0"?>
 <project name="MyGroovyBuild" default="compile">
   <property name="groovy.home" value="/Path/To/Groovy"/>
   <property name="groovy.version" value="X.Y.Z"/>
   <path id="groovy.classpath">
     <fileset dir="${groovy.home}/embeddable">
       <include name="groovy-all-${groovy.version}.jar" />
     </fileset>
   </path>
   <taskdef name="groovyc" classname="org.codehaus.groovy.ant.Groovyc" classpathref="groovy.classpath"/>

   <target name="compile" description="compile groovy sources">
     <groovyc srcdir="src" listfiles="true" classpathref="groovy.classpath"/>
   </target>
 </project>
 

This task can take the following arguments:

  • srcdir
  • scriptExtension
  • targetBytecode
  • destdir
  • sourcepath
  • sourcepathRef
  • classpath
  • classpathRef
  • listfiles
  • failonerror
  • proceed
  • memoryInitialSize
  • memoryMaximumSize
  • encoding
  • verbose
  • includeantruntime
  • includejavaruntime
  • fork
  • javaHome
  • executable
  • updatedProperty
  • errorProperty
  • includeDestClasses
  • jointCompilationOptions
  • stacktrace
  • indy
  • scriptBaseClass
  • stubdir
  • keepStubs
  • forceLookupUnnamedFiles
  • configscript
And these nested tasks:
  • javac
Of these arguments, the srcdir and destdir are required.

When this task executes, it will recursively scan srcdir and destdir looking for Groovy source files to compile. This task makes its compile decision based on timestamp.

A more elaborate build file showing joint compilation:

 <?xml version="1.0"?>
 <project name="MyJointBuild" default="compile">
   <property name="groovy.home" value="/Path/To/Groovy"/>
   <property name="groovy.version" value="X.Y.Z"/>

   <path id="groovy.classpath">
     <fileset dir="${groovy.home}/embeddable">
       <include name="groovy-all-${groovy.version}.jar" />
     </fileset>
   </path>

   <target name="clean" description="remove all built files">
     <delete dir="classes" />
   </target>

   <target name="compile" depends="init" description="compile java and groovy sources">
     <mkdir dir="classes" />
     <groovyc destdir="classes" srcdir="src" listfiles="true" keepStubs="true" stubdir="stubs">
       <javac debug="on" deprecation="true"/>
       <classpath>
         <fileset dir="classes"/>
         <path refid="groovy.classpath"/>
       </classpath>
     </groovyc>
   </target>

   <target name="init">
     <taskdef name="groovyc" classname="org.codehaus.groovy.ant.Groovyc" classpathref="groovy.classpath"/>
   </target>
 </project>
 

Based on the implementation of the Javac task in Apache Ant.

Can also be used from AntBuilder to allow the build file to be scripted in Groovy.

Field Summary

Fields
Modifiers Name Description
protected File[] compileList
protected CompilerConfiguration configuration
protected boolean failOnError
protected boolean listFiles

Methods Summary

Methods
Type Params Return Type Name and description
void addConfiguredJavac(Javac javac)
Add the configured nested javac task if present to initiate joint compilation.
protected void addToCompileList(File[] newFiles)
protected GroovyClassLoader buildClassLoaderFor()
protected void checkParameters()
protected void compile()
Path createClasspath()
Adds a path to the classpath.
Path createSourcepath()
Adds a path to sourcepath.
Path createSrc()
Adds a path for source compilation.
void execute()
Executes the task.
Path getClasspath()
Gets the classpath to be used for this compilation.
String getConfigscript()
Get the configuration file used to customize the compilation configuration.
File getDestdir()
Gets the destination directory into which the java source files should be compiled.
String getEncoding()
Returns the encoding to be used when creating files.
String getExecutable()
The value of the executable attribute, if any.
boolean getFailonerror()
Gets the failonerror flag.
File[] getFileList()
Gets the list of files to be compiled.
boolean getForceLookupUnnamedFiles()
Gets the forceLookupUnnamedFiles flag.
boolean getIncludeantruntime()
Gets whether or not the ant classpath is to be included in the classpath.
boolean getIncludejavaruntime()
Gets whether or not the java runtime should be included in this task's classpath.
boolean getIndy()
Get the value of the indy flag.
boolean getKeepStubs()
Gets the keepStubs flag.
boolean getListfiles()
Get the listfiles flag.
String getMemoryInitialSize()
Gets the memoryInitialSize flag.
String getMemoryMaximumSize()
Gets the memoryMaximumSize flag.
String getScriptBaseClass()
Get the base script class name for the scripts (must derive from Script)
String getScriptExtension()
Get the extension to use when searching for Groovy source files.
Path getSourcepath()
Gets the sourcepath to be used for this compilation.
Path getSrcdir()
Gets the source dirs to find the source java files.
File getStubdir()
Gets the stub directory into which the Java source stub files should be generated
String getTargetBytecode()
Retrieves the compiler bytecode compatibility level.
boolean getTaskSuccess()
Get the result of the groovyc task (success or failure).
boolean getVerbose()
Gets the verbose flag.
boolean isIncludeDestClasses()
Get the value of the includeDestClasses property.
protected CompilationUnit makeCompileUnit()
protected Path recreateSrc()
Recreate src.
protected void resetFileLists()
Clear the list of files to be compiled and copied.
protected void scanDir(File srcDir, File destDir, String[] files)
Scans the directory looking for source files to be compiled.
void setClasspath(Path classpath)
Set the classpath to be used for this compilation.
void setClasspathRef(Reference r)
Adds a reference to a classpath defined elsewhere.
void setConfigscript(String configscript)
Set the configuration file used to customize the compilation configuration.
void setDestdir(File destDir)
Set the destination directory into which the Java source files should be compiled.
void setEncoding(String encoding)
Sets the file encoding for generated files.
void setErrorProperty(String errorProperty)
The property to set on compilation failure.
void setExecutable(String forkExecPath)
Sets the name of the java executable to use when invoking the compiler in forked mode, ignored otherwise.
void setFailonerror(boolean fail)
Indicates whether the build will continue even if there are compilation errors; defaults to true.
void setForceLookupUnnamedFiles(boolean forceLookupUnnamedFiles)
Set the forceLookupUnnamedFiles flag.
void setFork(boolean f)
If true forks the Groovy compiler.
void setIncludeDestClasses(boolean includeDestClasses)
This property controls whether to include the destination classes directory in the classpath given to the compiler.
void setIncludeantruntime(boolean include)
If true, includes Ant's own classpath in the classpath.
void setIncludejavaruntime(boolean include)
If true, includes the Java runtime libraries in the classpath.
void setIndy(boolean useIndy)
Set the indy flag.
void setJavaHome(File home)
The JDK Home to use when forked.
void setKeepStubs(boolean keepStubs)
Set the keepStubs flag.
void setListfiles(boolean list)
If true, list the source files being handed off to the compiler.
void setMemoryInitialSize(String memoryInitialSize)
The initial size of the memory for the underlying VM if javac is run externally; ignored otherwise.
void setMemoryMaximumSize(String memoryMaximumSize)
The maximum size of the memory for the underlying VM if javac is run externally; ignored otherwise.
void setProceed(boolean proceed)
@param proceed inverse of failonerror
void setScriptBaseClass(String scriptBaseClass)
Set the base script class name for the scripts (must derive from Script)
void setScriptExtension(String scriptExtension)
Set the extension to use when searching for Groovy source files.
void setSourcepath(Path sourcepath)
Set the sourcepath to be used for this compilation.
void setSourcepathRef(Reference r)
Adds a reference to a source path defined elsewhere.
void setSrcdir(Path srcDir)
Set the source directories to find the source Java files.
void setStacktrace(boolean stacktrace)
Enable compiler to report stack trace information if a problem occurs during compilation.
void setStubdir(File stubDir)
Set the stub directory into which the Java source stub files should be generated.
void setTargetBytecode(String version)
Sets the bytecode compatibility level.
void setUpdatedProperty(String updatedProperty)
The property to set on compilation success.
void setVerbose(boolean verbose)
Enable verbose compiling which will display which files are being compiled.

Inherited Methods Summary

Inherited Methods
Methods inherited from class Name
class MatchingTask add, addDate, addType, setExcludes, setIncludes, setCaseSensitive, setDefaultexcludes, createIncludesFile, createExcludesFile, addContainsRegexp, XsetItems, XsetIgnore, addSelector, setProject, setFollowSymlinks, createPatternSet, createExclude, hasSelectors, setIncludesfile, selectorCount, selectorElements, setExcludesfile, appendSelector, createInclude, getSelectors, addAnd, addOr, addNot, addModified, addCustom, addNone, addDifferent, addMajority, addContains, addDepend, addSize, addDepth, addPresent, addFilename, log, log, log, log, init, execute, getTaskName, getRuntimeConfigurableWrapper, setRuntimeConfigurableWrapper, getOwningTarget, getTaskType, setTaskName, setOwningTarget, setTaskType, maybeConfigure, reconfigure, perform, bindToOwner, clone, getLocation, setLocation, getDescription, getProject, setDescription, wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll
class Task log, log, log, log, init, execute, getTaskName, getRuntimeConfigurableWrapper, setRuntimeConfigurableWrapper, getOwningTarget, getTaskType, setTaskName, setOwningTarget, setTaskType, maybeConfigure, reconfigure, perform, bindToOwner, clone, getLocation, setLocation, getDescription, getProject, setDescription, setProject, wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll

Field Detail

protected File[] compileList

protected CompilerConfiguration configuration

protected boolean failOnError

protected boolean listFiles

Method Detail

public void addConfiguredJavac(Javac javac)

Add the configured nested javac task if present to initiate joint compilation.

protected void addToCompileList(File[] newFiles)

protected GroovyClassLoader buildClassLoaderFor()

protected void checkParameters()

protected void compile()

public Path createClasspath()

Adds a path to the classpath.

Returns:
a class path to be configured

public Path createSourcepath()

Adds a path to sourcepath.

Returns:
a sourcepath to be configured

public Path createSrc()

Adds a path for source compilation.

Returns:
a nested src element.

public void execute()

Executes the task.

throws:
BuildException if an error occurs

public Path getClasspath()

Gets the classpath to be used for this compilation.

Returns:
the class path

public String getConfigscript()

Get the configuration file used to customize the compilation configuration.

Returns:
a path to a configuration script

public File getDestdir()

Gets the destination directory into which the java source files should be compiled.

Returns:
the destination directory

public String getEncoding()

Returns the encoding to be used when creating files.

Returns:
the file encoding to use

public String getExecutable()

The value of the executable attribute, if any.

Returns:
the name of the java executable
Since:
Groovy 1.8.7

public boolean getFailonerror()

Gets the failonerror flag.

Returns:
the failonerror flag

public File[] getFileList()

Gets the list of files to be compiled.

Returns:
the list of files as an array

public boolean getForceLookupUnnamedFiles()

Gets the forceLookupUnnamedFiles flag.

Returns:
the forceLookupUnnamedFiles flag

public boolean getIncludeantruntime()

Gets whether or not the ant classpath is to be included in the classpath.

Returns:
whether or not the ant classpath is to be included in the classpath

public boolean getIncludejavaruntime()

Gets whether or not the java runtime should be included in this task's classpath.

Returns:
the includejavaruntime attribute

public boolean getIndy()

Get the value of the indy flag.

Returns:
if to use indy

public boolean getKeepStubs()

Gets the keepStubs flag.

Returns:
the keepStubs flag

public boolean getListfiles()

Get the listfiles flag.

Returns:
the listfiles flag

public String getMemoryInitialSize()

Gets the memoryInitialSize flag.

Returns:
the memoryInitialSize flag

public String getMemoryMaximumSize()

Gets the memoryMaximumSize flag.

Returns:
the memoryMaximumSize flag

public String getScriptBaseClass()

Get the base script class name for the scripts (must derive from Script)

Returns:
Base class name for scripts (must derive from Script)

public String getScriptExtension()

Get the extension to use when searching for Groovy source files.

Returns:
the extension of Groovy source files

public Path getSourcepath()

Gets the sourcepath to be used for this compilation.

Returns:
the source path

public Path getSrcdir()

Gets the source dirs to find the source java files.

Returns:
the source directories as a path

public File getStubdir()

Gets the stub directory into which the Java source stub files should be generated

Returns:
the stub directory

public String getTargetBytecode()

Retrieves the compiler bytecode compatibility level.

Returns:
bytecode compatibility level. Can be one of the values in CompilerConfiguration.ALLOWED_JDKS.

public boolean getTaskSuccess()

Get the result of the groovyc task (success or failure).

Returns:
true if compilation succeeded, or was not necessary, false if the compilation failed.

public boolean getVerbose()

Gets the verbose flag.

Returns:
the verbose flag

public boolean isIncludeDestClasses()

Get the value of the includeDestClasses property.

Returns:
the value.

protected CompilationUnit makeCompileUnit()

protected Path recreateSrc()

Recreate src.

Returns:
a nested src element.

protected void resetFileLists()

Clear the list of files to be compiled and copied.

protected void scanDir(File srcDir, File destDir, String[] files)

Scans the directory looking for source files to be compiled. The results are returned in the class variable compileList

Parameters:
srcDir - The source directory
destDir - The destination directory
files - An array of filenames

public void setClasspath(Path classpath)

Set the classpath to be used for this compilation.

Parameters:
classpath - an Ant Path object containing the compilation classpath.

public void setClasspathRef(Reference r)

Adds a reference to a classpath defined elsewhere.

Parameters:
r - a reference to a classpath

public void setConfigscript(String configscript)

Set the configuration file used to customize the compilation configuration.

Parameters:
configscript - a path to a configuration script

public void setDestdir(File destDir)

Set the destination directory into which the Java source files should be compiled.

Parameters:
destDir - the destination director

public void setEncoding(String encoding)

Sets the file encoding for generated files.

Parameters:
encoding - the file encoding to be used

public void setErrorProperty(String errorProperty)

The property to set on compilation failure. This property will be set if the compilation fails.

Parameters:
errorProperty - the property name to use.

public void setExecutable(String forkExecPath)

Sets the name of the java executable to use when invoking the compiler in forked mode, ignored otherwise.

Parameters:
forkExecPath - the name of the executable
Since:
Groovy 1.8.7

public void setFailonerror(boolean fail)

Indicates whether the build will continue even if there are compilation errors; defaults to true.

Parameters:
fail - if true halt the build on failure

public void setForceLookupUnnamedFiles(boolean forceLookupUnnamedFiles)

Set the forceLookupUnnamedFiles flag. Defaults to false. The Groovyc Ant task is frequently used in the context of a build system that knows the complete list of source files to be compiled. In such a context, it is wasteful for the Groovy compiler to go searching the classpath when looking for source files and hence by default the Groovyc Ant task calls the compiler in a special mode with such searching turned off. If you wish the compiler to search for source files then you need to set this flag to true.

Parameters:
forceLookupUnnamedFiles - should unnamed source files be searched for on the classpath

public void setFork(boolean f)

If true forks the Groovy compiler. Default is false.

Parameters:
f - "true|false|on|off|yes|no"

public void setIncludeDestClasses(boolean includeDestClasses)

This property controls whether to include the destination classes directory in the classpath given to the compiler. The default value is "true".

Parameters:
includeDestClasses - the value to use.

public void setIncludeantruntime(boolean include)

If true, includes Ant's own classpath in the classpath. Default is true. If setting to false and using groovyc in conjunction with AntBuilder you might need to explicitly add the Groovy jar(s) to the groovyc classpath using a nested classpath task.

Parameters:
include - if true, includes Ant's own classpath in the classpath

public void setIncludejavaruntime(boolean include)

If true, includes the Java runtime libraries in the classpath. Default is false.

Parameters:
include - if true, includes the Java runtime libraries in the classpath

public void setIndy(boolean useIndy)

Set the indy flag.

Parameters:
useIndy - the indy flag

public void setJavaHome(File home)

The JDK Home to use when forked. Ignored if "executable" is specified.

Parameters:
home - the java.home value to use, default is the current JDK's home

public void setKeepStubs(boolean keepStubs)

Set the keepStubs flag. Defaults to false. Set to true for debugging. Ignored when forked.

Parameters:
keepStubs - should stubs be retained

public void setListfiles(boolean list)

If true, list the source files being handed off to the compiler. Default is false.

Parameters:
list - if true list the source files

public void setMemoryInitialSize(String memoryInitialSize)

The initial size of the memory for the underlying VM if javac is run externally; ignored otherwise. Defaults to the standard VM memory setting. (Examples: 83886080, 81920k, or 80m)

Parameters:
memoryInitialSize - string to pass to VM

public void setMemoryMaximumSize(String memoryMaximumSize)

The maximum size of the memory for the underlying VM if javac is run externally; ignored otherwise. Defaults to the standard VM memory setting. (Examples: 83886080, 81920k, or 80m)

Parameters:
memoryMaximumSize - string to pass to VM

public void setProceed(boolean proceed)

Parameters:
proceed - inverse of failonerror

public void setScriptBaseClass(String scriptBaseClass)

Set the base script class name for the scripts (must derive from Script)

Parameters:
scriptBaseClass - Base class name for scripts (must derive from Script)

public void setScriptExtension(String scriptExtension)

Set the extension to use when searching for Groovy source files. Accepts extensions in the form *.groovy, .groovy or groovy

Parameters:
scriptExtension - the extension of Groovy source files

public void setSourcepath(Path sourcepath)

Set the sourcepath to be used for this compilation.

Parameters:
sourcepath - the source path

public void setSourcepathRef(Reference r)

Adds a reference to a source path defined elsewhere.

Parameters:
r - a reference to a source path

public void setSrcdir(Path srcDir)

Set the source directories to find the source Java files.

Parameters:
srcDir - the source directories as a path

public void setStacktrace(boolean stacktrace)

Enable compiler to report stack trace information if a problem occurs during compilation. Default is false.

public void setStubdir(File stubDir)

Set the stub directory into which the Java source stub files should be generated. The directory need not exist and will not be deleted automatically - though its contents will be cleared unless 'keepStubs' is true. Ignored when forked.

Parameters:
stubDir - the stub directory

public void setTargetBytecode(String version)

Sets the bytecode compatibility level. The parameter can take one of the values in CompilerConfiguration.ALLOWED_JDKS.

Parameters:
version - the bytecode compatibility level

public void setUpdatedProperty(String updatedProperty)

The property to set on compilation success. This property will not be set if the compilation fails, or if there are no files to compile.

Parameters:
updatedProperty - the property name to use.

public void setVerbose(boolean verbose)

Enable verbose compiling which will display which files are being compiled. Default is false.

© 2003-2020 The Apache Software Foundation
Licensed under the Apache license.
https://docs.groovy-lang.org/2.4.21/html/gapi/org/codehaus/groovy/ant/Groovyc.html