Remove Utils.FileExists(), Utils.DirectoryExists() and Utils.ItemExists() methods by iSazonov · Pull Request #7100 · PowerShell/PowerShell

iSazonov · Jun 18, 2018

PR Summary

Continue #6929

Cleanup code to replace Utils.FileExists(), Utils.DirectoryExists() and Utils.ItemExists() methods with .Net Core methods.

PR Checklist

adityapatwardhan · Jun 18, 2018

return was within the catch block.

@adityapatwardhan Could you please clarify why we should move the return in catch block to continue recursion removal?
Previous code was trying the recursion removal if only we can not remove reparse point silently without any error and exception - is it real scenario?

@iSazonov misread the diff. Signed off.

adityapatwardhan · Jun 20, 2018

@iSazonov Please have a look at the test failures.

iSazonov · Jun 20, 2018

Rebased to get latest fixes.

Exclude GetFileSystemInfo() and Utils.FileExists()

File.Exists and Directory.Exists return false for device names so we can not call IsReservedDeviceName(path)

…oItem()

…ath()

iSazonov · Jun 20, 2018

I update some commits:

Fix typo if ((int)item.Attributes != 1) -> if ((int)item.Attributes != -1)
Replace wrong pattern isDirectory = attrs.HasFlag(FileAttributes.Directory); with isDirectory = exists && attrs.HasFlag(FileAttributes.Directory);
Fix CodeFactor issues.

Seems I fixed all Appveyor CI issues. I can not build Unix version locally so I haven't a progress with Travis CI issues.

daxian-dbw · Jun 20, 2018

+            FileSystemInfo fsinfo = new FileInfo(path);
+            var attr = fsinfo.Attributes;
+            var exists = (int)attr != -1;
+            isContainer = exists && attr.HasFlag(FileAttributes.Directory);


I see code like this for checking if a path exists and whether it's directory at 8 places. I think keeping the redundant code in Utils.ItemExists is better. Thoughts?

I agree. I was hoping to remove "unnecessary" checks of existence at all but it's too complicated the PR. I suppose the correct approach is that an operation is performed and an exception is handled instead of up to 6 times to check for each file's existence.
I think I'll close the PR and open new one where add commit by commit to discover and fix Unix issues and replace ItemExists with CheckItemExistsAndThrowOnError .

Thanks @iSazonov

iSazonov · Jun 21, 2018

Continue in #7129

iSazonov assigned daxian-dbw Jun 18, 2018

iSazonov requested review from SteveL-MSFT and daxian-dbw June 18, 2018 15:03

iSazonov requested review from BrucePay, Francisco-Gamino, adityapatwardhan and anmenaga as code owners June 18, 2018 15:03

adityapatwardhan requested changes Jun 18, 2018

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adityapatwardhan approved these changes Jun 20, 2018

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iSazonov added 4 commits June 20, 2018 10:56

Use File.Exists in GetFileSecurityZone

51803c3

Use File.Exists in CommandSearcher.cs

c692d1c

Use File.Exists in AnalysisCache.cs

9f8375f

Use File.Exists in ModuleUtils.cs

5950a94

iSazonov force-pushed the cleanup-file-exists branch from 4b63525 to a0acbd0 Compare June 20, 2018 05:56

iSazonov force-pushed the cleanup-file-exists branch from a0acbd0 to 68d9f25 Compare June 20, 2018 08:05

iSazonov added 2 commits June 20, 2018 15:10

Use File.Exists in UpdatableHelpSystem.cs

4f5db0e

Use File.Exists in ModuleCmdletBase.cs

358c14b

iSazonov force-pushed the cleanup-file-exists branch from 68d9f25 to 2d28133 Compare June 20, 2018 10:10

Refactor FileSystemProvider.NormalizeThePath() method

1c1386b

Exclude GetFileSystemInfo() and Utils.FileExists()

iSazonov force-pushed the cleanup-file-exists branch 3 times, most recently from e629b77 to 132ef5e Compare June 20, 2018 14:58

iSazonov added 6 commits June 20, 2018 20:15

Use File.Exists and Directory.Exists in GetFileSystemInfo

68448bb

File.Exists and Directory.Exists return false for device names so we can not call IsReservedDeviceName(path)

Use File.Exists in CopyItemFromRemoteSession

3e0d086

Remove Utils.FileExists() method

42b5629

Use Directory.Exists in ModuleCmdletBase.cs

848d59b

Use Directory.Exists in SessionStateDriveAPIs.cs

7de56f1

Use Directory.Exists in LocationGlobber.cs

e30b381

iSazonov added 14 commits June 20, 2018 20:15

Use Directory.Exists in FileSystemProvider.cs

10f481e

Remove Utils.DirectoryExists()

4e5bd0d

Exclude Utils.ItemExists() from FileSystemProvider.ItemExists()

bb22d3c

Exclude Utils.ItemExists() from FileSystemProvider.NewItem()

a99bd63

Exclude Utils.ItemExists() from FileSystemProvider.RemoveDirectoryInf…

abff189

…oItem()

Exclude Utils.ItemExists() from FileSystemProvider.GetProperty()

666de17

Exclude Utils.ItemExists() from FileSystemProvider.NewItem() - 2

f9f08c7

Exclude Utils.ItemExists() from FileSystemProvider.NewItem() - 3

85a9865

Exclude Utils.ItemExists() from FileSystemProvider.NewItem() - 4

b81b3c5

Exclude Utils.ItemExists() from FileSystemProvider.GetPathItems()

f678fe9

Exclude Utils.ItemExists() from FileSystemProvider.SetProperty()

f57ec8a

Exclude Utils.ItemExists() from FileSystemProvider.NormalizeRelativeP…

08b2e99

…ath()

Remove Utils.ItemExists()

4dc4838

[Feature] Exclude Utils.ItemExists() from security\Utils.cs

0172040

iSazonov force-pushed the cleanup-file-exists branch from 132ef5e to 0172040 Compare June 20, 2018 15:28

daxian-dbw reviewed Jun 20, 2018

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iSazonov mentioned this pull request Jun 21, 2018

Cleanup Utils.FileExists(), Utils.DirectoryExists() and Utils.ItemExists() methods #7129

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iSazonov closed this Jun 21, 2018

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Remove Utils.FileExists(), Utils.DirectoryExists() and Utils.ItemExists() methods#7100

Remove Utils.FileExists(), Utils.DirectoryExists() and Utils.ItemExists() methods#7100
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iSazonov commented Jun 18, 2018

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adityapatwardhan Jun 18, 2018

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iSazonov Jun 19, 2018

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iSazonov Jun 21, 2018 •

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iSazonov commented Jun 18, 2018

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adityapatwardhan commented Jun 20, 2018

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