Improved handling and clean-up of temporary files used by the providers.

[ribbons]

Original report from Matt Robinson at 21:01:31 on 2012-04-08

There are currently a few issues relating to temporary files (e.g. intermediate files used by the providers):

• Interrupted downloads can leave behind large temporary files
• Temporary files still in use by one of the dependency applications can cause a download to error (even though the file could just be cleaned up later)
• Corrupt temporary files, or those with messed up permissions can cause issues retrying downloads as the same file name is re-used for the temporary files of a specific download.
• The files are contained within a folder in the temp directory which may get removed, or acquire strange permissions.

---

Imported from Bug 635 in the NerdoftheHerd.com Bugzilla.

[ribbons]

Original comment from Matt Robinson at 17:26:26 on 2012-05-11

Reworked in 8ef35f2 to use a new class called TempFile to handle temporary files used by the providers. This generates unique names under the temp folder, and guarantees that the files will be cleaned up, but will wait until a later occasion if the file is still in use when it is first attempted to be deleted.