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improve robustness of fromDirect and replaceFile

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Made fromDirect check that a file in the tree has good content (and is not
a broken symlink either) before copying it to another file that has the
same key.

Made replaceFile clean up the temp file if the action that creates it, or
the file replacement action fails.
This commit is contained in:
Joey Hess 2013-05-22 20:58:27 -04:00
parent 3d420f7c94
commit bf86b5ca16
8 changed files with 40 additions and 33 deletions
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Annex/Content/Direct.hs
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@ -193,7 +193,7 @@ compareInodeCachesWith :: Annex InodeComparisonType
compareInodeCachesWith = ifM inodesChanged ( return Weakly, return Strongly )
{- Copies the contentfile to the associated file, if the associated
- file has not content. If the associated file does have content,
- file has no content. If the associated file does have content,
- even if the content differs, it's left unchanged. -}
addContentWhenNotPresent :: Key -> FilePath -> FilePath -> Annex ()
addContentWhenNotPresent key contentfile associatedfile = do