Extra calls to GetFileAttributes for ignored files

[rpaquay]

VsChromium makes two call to GetFileAttributesEx whenever a file is changed on disk, even for files that are ignored. These calls should not happen.

Repo:

• Create a vs-chromium-project.txt file in a new empty directory
• Add a section to ignore *.bin files (for example)

[SourceExplorer.ignore]
*.bin

• Open the project in Visual Studio
• Open ProcMon and filter events from VsChromium.Server.exe
• Open a command prompt and "cd" to the project directory
• Type "echo >foo.bin" in the command prompt

Result:

• ProcMon shows that VsChromium.Server.exe make two calls to "CreateFile" (coming from GetFileAttributesEx)

Expected:

• ProcMon should not show any disk activity from VsChromium.Server.exe

Thanks to @randomascii for reporting the issue.

[randomascii]

Sweet. This will probably reduce the overhead of having VsChromium running during a build although I have no estimate as to how much. Given how expensive CreateFile can be on Windows it may well be a worthwhile optimization.