Bug 158473 – [GLIB] Implement hardLinkOrCopyFile() in FileSystemGlib

• Component: Platform
• Status: RESOLVED FIXED

[Carlos Garcia Campos]

It was added in r199230 to be used by IndexedDB blob support, but never implemented for GLib.

[Carlos Garcia Campos]

Created attachment 280689 [details]
Patch

[Adrian Perez]

Comment on attachment 280689 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=280689&action=review

Informally reviewed. LGTM with a nit.

> Source/WebCore/platform/glib/FileSystemGlib.cpp:385
> +    if (!link(sourceFilename.get(), destinationFilename.get()))

In Windows the CreateHardLink() function could be used here instead of always copying the file (though it only works in NTFS, see: https://msdn.microsoft.com/en-us/library/windows/desktop/aa363860(v=vs.85).aspx), so please add a TODO comment here to let developers working in Windows that they may want to add the relevant code in the future.

[Carlos Garcia Campos]

Created attachment 280694 [details]
Patch

Add windows implementation too (copied from FileSystemWin.cpp and untested).

[Michael Catanzaro]

Comment on attachment 280694 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=280694&action=review

> Source/WebCore/platform/glib/FileSystemGlib.cpp:394
> +    return g_file_copy(sourceFile.get(), destinationFile.get(), G_FILE_COPY_NONE, nullptr, nullptr, nullptr, nullptr);

Probably should use G_FILE_COPY_OVERWRITE instead of G_FILE_COPY_NONE?

[Carlos Garcia Campos]

(In reply to comment #4)
> Comment on attachment 280694 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=280694&action=review
> 
> > Source/WebCore/platform/glib/FileSystemGlib.cpp:394
> > +    return g_file_copy(sourceFile.get(), destinationFile.get(), G_FILE_COPY_NONE, nullptr, nullptr, nullptr, nullptr);
> 
> Probably should use G_FILE_COPY_OVERWRITE instead of G_FILE_COPY_NONE?

I don't think so, this is a fallback for link, and link fails if destination exists. I think the posix implementation also fails if destination exists.

[Carlos Garcia Campos]

Committed r201796: <http://trac.webkit.org/changeset/201796>