This sbt plugin can be used to check duplicated files, especially for duplicated classes or configuration files, , which may lead to potential errors.
[project-x]$ sbt
[info] Loading project definition from /data/workspace/project-x/project
[info] Updating {file:/data/workspace/project-x/project/}project-x-build...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Set current project to project-x (in build file:/data/workspace/project-x/)
[project-x]
[project-x] deduplicate
[info] deduplicating with filters: IgnoreWhen(**/META-INF/**), IgnoreWhen(META-INF/**), IgnoreWhen(**NOTICE*), IgnoreWhen(**LICENSE*), IgnoreWhen(reference.conf), IgnoreWhen(conf/reference.conf), WarnWhen(**.conf), ErrorWhen(**.class), WarnWhen(**)
[warn] duplicated: ABC, filtered by WarnWhen(**), found in:
[warn] + .../project-x/target/scala-2.10/classes
[warn] + .../workspace/project-x/lib/sample.jar
[error] duplicated: org/slf4j/Logger.class, filtered by ErrorWhen(**.class), found in:
[error] + .../project-x/target/scala-2.10/classes
[error] + .../org.slf4j/slf4j-api/jars/slf4j-api-1.7.10.jar
[info] duplicated found, 1 warnning, 1 error
[trace] Stack trace suppressed: run last compile:deduplicate for the full output.
[error] (compile:deduplicate) some duplicated files exist. see sbt's log for details.
[error] Total time: 0 s, completed Jun 29, 2015 1:51:42 PM
Add the following line to your project/plugins.sbt:
addSbtPlugin("woshilaiceshide" % "sbt-duplicated-checker" % "0.1")
If the artifact is not located correctly, just download the source code, and then issue:
cd sbt-duplicated-checker
[sbt-duplicated-checker]$ sbt publishLocal
deduplicateTarget
deduplicate against these targets.
deduplicateFilter
deduplicate using these filters written in globl patterns.
The default is List(IgnoreWhen(**/META-INF/**), IgnoreWhen(META-INF/**), IgnoreWhen(**NOTICE*), IgnoreWhen(**LICENSE*), IgnoreWhen(reference.conf), IgnoreWhen(conf/reference.conf), WarnWhen(**.conf), ErrorWhen(**.class), WarnWhen(**))
For every candidate file, checking will stop if a filter is satisfied from left to right.
deduplicate
deduplicate using specified filters in specified targets.
deduplicateWhenQuerying_fullClasspath
deduplicate when querying fullClasspath, or not? true by default.
So "run" or "runMain" or any tasks those depend on fullClasspath will check duplicated files automatically. It's just fine in general. To disable this feature, add the following line to build.sbt:
disablePlugins(DeduplicatePlugin)
or toggle it:
deduplicateWhenQuerying_fullClasspath := true
By default, all of the above four keys stand in Compile, Runtime, Test, and use the dependencies in the corresponding scope. For example, test:deduplicate depends on test:deduplicateTarget, which depends on test:fullClasspath.
http://opensource.org/licenses/MIT
Any feedback is expected.
