https://issues.apache.org/bugzilla/show_bug.cgi?id=50743
Summary: Cache results to speed up Checkstyle #build
Product: Tomcat 7
Version: trunk
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: Packaging
AssignedTo: dev@tomcat.apache.org
ReportedBy: oli...@puppycrawl.com
Created an attachment (id=26627)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=26627)
Patch to enable caching
Checkstyle supports caching files that have successfully passed with no errors,
so that these files are not processed again on subsequent invocations of
Checkstyle until the files are modified again. As the output below shows, this
speeds up the Checkstyle from 51 seconds to 15 seconds.
The attached patch, based on trunk, adds support for caching Checkstyle
results. The cache files are stored in the ${tomcat.output} directory, so are
removed whenever an "ant clean" is performed.
You could get more sophisticated and store the cache files outside of the
${tomcat.output} directory to save history across "ant clean" invocations. In
this case, you then need to make the build logic smarter to invalidate the
cache files if any of the Checkstyle configuration files change. Let me know if
you are interested in a patch to do this.
=======================================================
oliver@oliver-laptop tomcat-trunk]$ ant -q validate
[echo] Testing for /tmp/tomcat/checkstyle-5.1/checkstyle-all-5.1.jar
[checkstyle]
/home/oliver/play/tomcat-trunk/java/org/apache/catalina/tribes/group/ExtendedRpcCallback.java:21:8:
Unused import - org.apache.catalina.tribes.ErrorHandler.
BUILD FAILED
/home/oliver/play/tomcat-trunk/build.xml:430: Got 1 errors and 0 warnings.
Total time: 55 seconds
[oliver@oliver-laptop tomcat-trunk]$ ant -q validate
[echo] Testing for /tmp/tomcat/checkstyle-5.1/checkstyle-all-5.1.jar
[checkstyle]
/home/oliver/play/tomcat-trunk/java/org/apache/catalina/tribes/group/ExtendedRpcCallback.java:21:8:
Unused import - org.apache.catalina.tribes.ErrorHandler.
BUILD FAILED
/home/oliver/play/tomcat-trunk/build.xml:430: Got 1 errors and 0 warnings.
Total time: 15 seconds
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