Issue when src and dest is the same path

[tschaub]

Hi, thanks for your great plugin, it very helpful!

I notice small issue: it seems to doesn't work when task configured the way when source and destination is the same file.

Example:

concat: {
  banner: {
    options: {
      banner: "some banner ..."
    },
    expand: true,
    flatten: false,
    cwd: 'dist',
    src: '*.js',
    dest: 'dist'
  }
}

I use grunt-contrib-concat to add banners (I know it not very smart, but works). When I try to run concat task, configured like this, through newer it always handle zero files.

P.S.
Sory for my bad english.

[eirikhm]

I can confirm this. It cannot find any "newer files" when I'm using this with grunt-typescript, but as soon as I change dst everything works as it should.

[tschaub]

This is a known limitation. It is not possible for source files to be newer than destination files when the source and destination are the same file. An alternative to processing files in place is to have each task produce a new set of files. Hope that makes sense.

[russelldavis]

@tschaub Couldn't you address this by treating these tasks (where src and dest are the same) like tasks that don't have a dest at all, i.e., compare to the timestamp of when the task was last run?

[tschaub]

Indeed @russelldavis

[tschaub]

@pozadi I think 3e49f48 should address your issue. If you're able to test out the same branch, let me know if this works as expected.

[rpominov]

Yes, it works great. Thank you.

[rpominov]

Sorry for closing, didn't realize that it is PR now :)

[tschaub]

Thanks for testing @pozadi (and thanks for the good suggestion @russelldavis).

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