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which handles broken symlink & unit test added (#2150) (#2196)

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* which handles broken symlink & unit test added (#2150)

* Update src/Runner.Sdk/Util/WhichUtil.cs

Co-authored-by: Ferenc Hammerl <31069338+fhammerl@users.noreply.github.com>

* fix pr comments

* trace log added,  in case we find a symlink that is broken

* add check in case the target of the symlink is a relative path; added test that check symlink that targets a full path; added test that check symlink that targets a relative path;

* fix tests

* fix tests for linux

---------

Co-authored-by: Eli Entelis <eli.entelis@hexagon.com>
Co-authored-by: Eli Entelis <42981948+Eliminator1999@users.noreply.github.com>
Co-authored-by: Ferenc Hammerl <31069338+fhammerl@users.noreply.github.com>
This commit is contained in:
Eli Entelis
2023-04-07 05:15:11 +03:00
committed by GitHub
parent 0484afeec7
commit 2ecd7d2fc6
2 changed files with 137 additions and 4 deletions
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16
src/Runner.Sdk/Util/WhichUtil.cs
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@@ -60,7 +60,7 @@ namespace GitHub.Runner.Sdk
trace?.Verbose(ex.ToString());
}
if (matches != null && matches.Length > 0)
if (matches != null && matches.Length > 0 && IsPathValid(matches.First(), trace))
{
trace?.Info($"Location: '{matches.First()}'");
return matches.First();
@@ -86,7 +86,7 @@ namespace GitHub.Runner.Sdk
for (int i = 0; i < pathExtSegments.Length; i++)
{
string fullPath = Path.Combine(pathSegment, $"{command}{pathExtSegments[i]}");
if (matches.Any(p => p.Equals(fullPath, StringComparison.OrdinalIgnoreCase)))
if (matches.Any(p => p.Equals(fullPath, StringComparison.OrdinalIgnoreCase)) && IsPathValid(fullPath, trace))
{
trace?.Info($"Location: '{fullPath}'");
return fullPath;
@@ -105,7 +105,7 @@ namespace GitHub.Runner.Sdk
trace?.Verbose(ex.ToString());
}
if (matches != null && matches.Length > 0)
if (matches != null && matches.Length > 0 && IsPathValid(matches.First(), trace))
{
trace?.Info($"Location: '{matches.First()}'");
return matches.First();
@@ -128,5 +128,15 @@ namespace GitHub.Runner.Sdk
return null;
}
// checks if the file is a symlink and if the symlink`s target exists.
private static bool IsPathValid(string path, ITraceWriter trace = null)
{
var fileInfo = new FileInfo(path);
var linkTargetFullPath = fileInfo.Directory?.FullName + Path.DirectorySeparatorChar + fileInfo.LinkTarget;
if(fileInfo.LinkTarget == null || File.Exists(linkTargetFullPath) || File.Exists(fileInfo.LinkTarget)) return true;
trace?.Info($"the target '{fileInfo.LinkTarget}' of the symbolic link '{path}', does not exist");
return false;
}
}
}