Ant Task
This task runs Checkstyle over specified Java files. The task has been tested using ANT 1.5. The latest version of checkstyle can be found at http://checkstyle.sourceforge.net/. This task is included in the checkstyle distribution.
The easiest way is to include checkstyle-all-4.1.jar in the classpath. This contains all the classes required to run Checkstyle. Alternatively, you must include the following in the classpath:
To use the task in a build file, you will need the following
taskdef declaration:
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<taskdef resource="checkstyletask.properties"
classpath="/path/to/checkstyle-all-4.1.jar"/> |
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Or, assuming that Checkstyle is in the global classpath (not
recommended), then you will need the following taskdef
declaration:
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<taskdef resource="checkstyletask.properties"/> |
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Or if you use Ant 1.6 and later and assuming that Checkstyle is in the library search path, then you may use antlib feature of Ant (see http://ant.apache.org/manual/CoreTypes/antlib.html for more details). For example:
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<project name="foo" ...
xmlns:cs="antlib:com.puppycrawl.tools.checkstyle">
...
<cs:checkstyle>
...
</cs:checkstyle>
...
</project> |
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| Attribute | Description | Required |
| file | File to run checkstyle on. | One of either file or at least one nested fileset element |
| config | Specifies a file that defines the configuration modules. See here for a description of how to define a configuration. | Exactly one of config or configURL |
| configURL | Specifies a URL that defines the configuration modules. See here for a description of how to define a configuration. | Exactly one of config or configURL |
| properties | Specifies a file that contains properties for expanded property values of the configuration. Ant properties (like ${basedir}) and nested property elements override the properties in this file. | No |
| packageNamesFile | Specifies a file that contains package names for the configuration. | No |
| failOnViolation | Specifies whether the build will continue even if there are violations. Defaults to "true". | No |
| failureProperty | The name of a property to set in the event of a violation. | No |
| maxErrors | The maximum number of errors that are tolerated before breaking the build or setting the failure property. Defaults to "0". | No |
| maxWarnings | The maximum number of warnings that are tolerated before breaking the build or setting the failure property. Defaults to "2147483647", i.e. Integer.MAX_VALUE. | No |
| classpath | The classpath to use when looking up classes. Defaults to the current classpath. | No |
| classpathref | The classpath to use when looking up classes, given as a reference to a path defined elsewhere. | No |
This task supports the nested elements <fileset>, <classpath>, <formatter>, and <property>.
The parameters for the <formatter> element are:
| Attribute | Description | Required |
| type |
The type of output to generate. The valid values are:
Defaults to "plain". |
No |
| toFile | The file to write output to. Defaults to standard output. Note, there is no way to explicitly specify standard output. | No |
| useFile | Boolean that determines whether output should be sent to a file. Default is true. | No |
A <property> element provides a property for expanded property values of the configuration. The parameters for the <property> element are:
| Attribute | Description | Required |
| key |
The key for the property. |
Yes |
| value | The value of the property specified as a string. | Either value or file |
| file | The value of the property specified as a file. This is great for specifying file names relative to the ANT build file. | Either value or file |
Run checkstyle with configuration file
docs/sun_checks.xml on a single file
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<checkstyle config="docs/sun_checks.xml" file="Check.java"/> |
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Run checkstyle on a set of Java files using site-wide configuration and an expanded property value
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<checkstyle config="/path/to/site/sun_checks.xml"> <fileset dir="src/checkstyle" includes="**/*.java"/> <!-- Location of cache-file. Something that is project specific --> <property key="checkstyle.cache.file" file="target/cachefile"/> </checkstyle> |
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Run checkstyle on a set of files and output messages to standard output in plain format, and a file in XML format
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<checkstyle config="docs/sun_checks.xml"> <fileset dir="src/checkstyle" includes="**/*.java"/> <formatter type="plain"/> <formatter type="xml" toFile="build/checkstyle_errors.xml"/> </checkstyle> |
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Run checkstyle with configuration file
docs/sun_checks.xml on a file and provide a package
names file
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<checkstyle config="docs/sun_checks.xml"
packageNamesFile="myPackageNames.xml"
file="Check.java"/> |
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Run checkstyle in an automated build and send an email report if style violations are detected
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<target name="checkstyle"
description="Generates a report of code convention violations.">
<checkstyle config="docs/sun_checks.xml"
failureProperty="checkstyle.failure"
failOnViolation="false">
<formatter type="xml" tofile="checkstyle_report.xml"/>
<fileset dir="src" includes="**/*.java"/>
</checkstyle>
<style in="checkstyle_report.xml" out="checkstyle_report.html" style="checkstyle.xsl"/>
</target>
<!-- run this target as part of automated build -->
<target name="checkstyle-nightly"
depends="checkstyle"
if="checkstyle.failure"
description="Sends email if checkstyle detected code conventions violations.">
<!-- use your own server and email addresses below. See Ant documentation for details -->
<mail from="qa@some.domain"
tolist="someone@some.domain,someoneelse@some.domain"
mailhost="mailbox.some.domain"
subject="Checkstyle violation(s) in project ${ant.project.name}"
files="checkstyle_report.html"/>
</target> |
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