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https://issues.apache.org/jira/browse/IO-416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14151625#comment-14151625
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Sebb commented on IO-416:
-------------------------
Thanks for the patch, however it uses a different naming convention from the
original.
Apart from that, spaces and parentheses are not valid on all filing systems and
may cause problems with shell scripts.
The original suggestion should work on most (*) filing systems, and is simple
to implement.
However it has the disadvantage that the extension is changed.
So it may make sense to consider a variant where the filename stem is changed
instead.
Any additional characters need to be ones that are not likely to cause problems
with the filing system.
The user could be asked to provide the formatting string, otherwise the scheme
that is chosen must be suitable for most OSes.
(*) some filing systems do not allow multiple "." in a file name. Or the
increase in length of the name may cause a problem.
> FileUtil One-Up FileName
> ------------------------
>
> Key: IO-416
> URL: https://issues.apache.org/jira/browse/IO-416
> Project: Commons IO
> Issue Type: Wish
> Components: Utilities
> Reporter: BELUGA BEHR
> Priority: Minor
> Attachments: incrementFileName.patch
>
>
> Create a FileNameUtil or FileUtil facility that allows for creating a one-up
> extension on files that already exist.
> example:
> archive
> +-- file.txt
> +-- file.txt.1
> +-- file.txt.2
> {code}
> File file = FileNameUtils.nextOneUpFile("/archive/file.txt");
> System.out.println(file)
> // output: /archive/file.txt.3
> {code}
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