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root search pattern for hashfiles and allow forward slash on windows (#151)

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This commit is contained in:
eric sciple
2019-10-29 13:23:30 -04:00
committed by GitHub
parent e7dd2c6cc2
commit 51581ac865
1 changed files with 30 additions and 5 deletions
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35
src/Sdk/DTExpressions2/Expressions2/Sdk/Functions/HashFiles.cs
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@@ -5,6 +5,7 @@ using System.Text;
using Minimatch;
using System.IO;
using System.Security.Cryptography;
using GitHub.DistributedTask.Expressions2.Sdk;
using GitHub.DistributedTask.Pipelines.ContextData;
using GitHub.DistributedTask.Pipelines.ObjectTemplating;
namespace GitHub.DistributedTask.Expressions2.Sdk.Functions
@@ -28,29 +29,50 @@ namespace GitHub.DistributedTask.Expressions2.Sdk.Functions
string searchRoot = workspaceData.Value;
string pattern = Parameters[0].Evaluate(context).ConvertToString();
// Convert slashes on Windows
if (s_isWindows)
{
pattern = pattern.Replace('\\', '/');
}
// Root the pattern
if (!Path.IsPathRooted(pattern))
{
var patternRoot = s_isWindows ? searchRoot.Replace('\\', '/').TrimEnd('/') : searchRoot.TrimEnd('/');
pattern = string.Concat(patternRoot, "/", pattern);
}
// Get all files
context.Trace.Info($"Search root directory: '{searchRoot}'");
context.Trace.Info($"Search pattern: '{pattern}'");
var files = Directory.GetFiles(searchRoot, "*", SearchOption.AllDirectories).OrderBy(x => x).ToList();
var files = Directory.GetFiles(searchRoot, "*", SearchOption.AllDirectories)
.Select(x => s_isWindows ? x.Replace('\\', '/') : x)
.OrderBy(x => x, StringComparer.Ordinal)
.ToList();
if (files.Count == 0)
{
throw new ArgumentException($"'hashFiles({pattern})' failed. Directory '{searchRoot}' is empty");
throw new ArgumentException($"hashFiles('{ExpressionUtility.StringEscape(pattern)}') failed. Directory '{searchRoot}' is empty");
}
else
{
context.Trace.Info($"Found {files.Count} files");
}
// Match
var matcher = new Minimatcher(pattern, s_minimatchOptions);
files = matcher.Filter(files).ToList();
files = matcher.Filter(files)
.Select(x => s_isWindows ? x.Replace('/', '\\') : x)
.ToList();
if (files.Count == 0)
{
throw new ArgumentException($"'hashFiles({pattern})' failed. Search pattern '{pattern}' doesn't match any file under '{searchRoot}'");
throw new ArgumentException($"hashFiles('{ExpressionUtility.StringEscape(pattern)}') failed. Search pattern '{pattern}' doesn't match any file under '{searchRoot}'");
}
else
{
context.Trace.Info($"{files.Count} matches to hash");
}
// Hash each file
List<byte> filesSha256 = new List<byte>();
foreach (var file in files)
{
@@ -64,6 +86,7 @@ namespace GitHub.DistributedTask.Expressions2.Sdk.Functions
}
}
// Hash the hashes
using (SHA256 sha256hash = SHA256.Create())
{
var hashBytes = sha256hash.ComputeHash(filesSha256.ToArray());
@@ -83,12 +106,14 @@ namespace GitHub.DistributedTask.Expressions2.Sdk.Functions
}
}
private static readonly bool s_isWindows = Environment.OSVersion.Platform != PlatformID.Unix && Environment.OSVersion.Platform != PlatformID.MacOSX;
// Only support basic globbing (* ? and []) and globstar (**)
private static readonly Options s_minimatchOptions = new Options
{
Dot = true,
NoBrace = true,
NoCase = Environment.OSVersion.Platform != PlatformID.Unix && Environment.OSVersion.Platform != PlatformID.MacOSX,
NoCase = s_isWindows,
NoComment = true,
NoExt = true,
NoNegate = true,