NPE by report generation through "allure generate -o"

[akriuchk]

I'm submitting a ...

• bug report
• feature request
• support request => Please do not submit support request here, see note at the top of this template.

What is the current behavior?

Generation of the report can be done with allure generate -o

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem

0. Checkout project from SVN
1. Run testng framework with maven witch 'clean test' parameters
2. Place results to ./report/results-source folder
3. Execute allure from test resources ./src/test/resources/reporting/allure/bin/allure generate --clean ./report/results-source -o ./report/results

What is the expected behavior?

Report generated from files in source folder and placed in destination folder
There is no required files in .svn folder.

Please tell us about your environment:

Allure version	2.3.1
Test framework	[email protected]
Allure adaptor	[email protected]
Generate report using	[email protected]
---	---
Java	1.8.0_131
Linux	4.4.0-78-generic

Other information

Could not generate report: {}
java.nio.file.NoSuchFileException: /report/results/plugins/behaviors/.svn/prop-base/index.js.svn-base
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixCopyFile.copyFile(UnixCopyFile.java:243)
at sun.nio.fs.UnixCopyFile.copy(UnixCopyFile.java:581)
at sun.nio.fs.UnixFileSystemProvider.copy(UnixFileSystemProvider.java:253)
at java.nio.file.Files.copy(Files.java:1274)
at io.qameta.allure.util.CopyVisitor.visitFile(CopyVisitor.java:36)
at io.qameta.allure.util.CopyVisitor.visitFile(CopyVisitor.java:16)
at java.nio.file.Files.walkFileTree(Files.java:2670)
at java.nio.file.Files.walkFileTree(Files.java:2742)
at io.qameta.allure.plugin.DefaultPlugin.unpackReportStatic(DefaultPlugin.java:44)
at io.qameta.allure.core.ReportWebPlugin.writePluginsStatic(ReportWebPlugin.java:48)
at io.qameta.allure.core.ReportWebPlugin.aggregate(ReportWebPlugin.java:38)
at io.qameta.allure.ReportGenerator.aggregate(ReportGenerator.java:38)
at io.qameta.allure.ReportGenerator.generate(ReportGenerator.java:55)
at io.qameta.allure.ReportGenerator.generate(ReportGenerator.java:43)
at io.qameta.allure.Commands.generate(Commands.java:88)
at io.qameta.allure.CommandLine.run(CommandLine.java:129)
at java.util.Optional.orElseGet(Optional.java:267)
at io.qameta.allure.CommandLine.main(CommandLine.java:72)