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Fix Homebrew installation error on Apple Silicon #4635

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Merged
Gabriel Dufresne (GabrielDuf) merged 2 commits into from
Apr 23, 2026
Merged

Fix Homebrew installation error on Apple Silicon #4635

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8efaf72
Fix Homebrew "Cannot install under Rosetta 2" error on Apple Silicon
GabrielDuf Apr 22, 2026
9d5da98
made some fix mentionned by copilot
GabrielDuf Apr 23, 2026
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14 changes: 4 additions & 10 deletions src/UniGetUI.PackageEngine.Managers.Homebrew/Helpers/HomebrewPkgDetailsHelper.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,22 +10,16 @@ namespace UniGetUI.PackageEngine.Managers.HomebrewManager;

internal sealed class HomebrewPkgDetailsHelper : BasePkgDetailsHelper
{
private readonly Homebrew _brew;

public HomebrewPkgDetailsHelper(Homebrew manager)
: base(manager) { }
: base(manager) { _brew = manager; }

protected override void GetDetails_UnSafe(IPackageDetails details)
{
using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Manager.Status.ExecutablePath,
Arguments = $"info --json=v2 {details.Package.Id}",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
StartInfo = _brew.MakeBrewStartInfo($"info --json=v2 {details.Package.Id}"),
};
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IProcessTaskLogger logger = Manager.TaskLogger.CreateNew(
Expand Down
14 changes: 4 additions & 10 deletions src/UniGetUI.PackageEngine.Managers.Homebrew/Helpers/HomebrewSourceHelper.cs
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Expand Up @@ -10,8 +10,10 @@ namespace UniGetUI.PackageEngine.Managers.HomebrewManager;

internal sealed class HomebrewSourceHelper : BaseSourceHelper
{
private readonly Homebrew _brew;

public HomebrewSourceHelper(Homebrew manager)
: base(manager) { }
: base(manager) { _brew = manager; }

// ── Source listing ─────────────────────────────────────────────────────

Expand All @@ -21,15 +23,7 @@ protected override IReadOnlyList<IManagerSource> GetSources_UnSafe()

using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Manager.Status.ExecutablePath,
Arguments = "tap",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
StartInfo = _brew.MakeBrewStartInfo("tap"),
};
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IProcessTaskLogger logger = Manager.TaskLogger.CreateNew(LoggableTaskType.ListSources, p);
p.Start();
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94 changes: 33 additions & 61 deletions src/UniGetUI.PackageEngine.Managers.Homebrew/Homebrew.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using UniGetUI.Core.Logging;
using UniGetUI.Core.Tools;
Expand Down Expand Up @@ -98,23 +99,38 @@ protected override void _loadManagerExecutableFile(
out string callArguments)
{
(found, path) = GetExecutableFile();
callArguments = "";
// Force ARM64 when brew is at the Apple Silicon prefix. Without this,
// .NET's posix_spawn may select the x86_64 slice of universal binaries
// (bash, ruby) in the brew script chain, causing Homebrew to detect a
// Rosetta 2 context even when UniGetUI itself is ARM64-native.
if (path == BREW_PATHS[0]
&& OperatingSystem.IsMacOS()
&& RuntimeInformation.OSArchitecture == System.Runtime.InteropServices.Architecture.Arm64)
{
callArguments = $"-arm64 {path}";
path = "/usr/bin/arch";
}
else
{
callArguments = "";
}
}

internal ProcessStartInfo MakeBrewStartInfo(string arguments) => new()
{
FileName = Status.ExecutablePath,
Arguments = Status.ExecutableCallArgs.Length > 0
? $"{Status.ExecutableCallArgs} {arguments}"
: arguments,
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
};

protected override void _loadManagerVersion(out string version)
{
using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Status.ExecutablePath,
Arguments = "--version",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
};
using var p = new Process { StartInfo = MakeBrewStartInfo("--version") };
p.Start();
// First line: "Homebrew 4.x.x"
version = p.StandardOutput.ReadLine()?.Replace("Homebrew ", "").Trim() ?? "";
Expand All @@ -125,18 +141,7 @@ protected override void _loadManagerVersion(out string version)

public override void RefreshPackageIndexes()
{
using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Status.ExecutablePath,
Arguments = "update",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
};
using var p = new Process { StartInfo = MakeBrewStartInfo("update") };
IProcessTaskLogger logger = TaskLogger.CreateNew(LoggableTaskType.RefreshIndexes, p);
p.Start();
logger.AddToStdOut(p.StandardOutput.ReadToEnd());
Expand All @@ -155,18 +160,7 @@ protected override IReadOnlyList<Package> FindPackages_UnSafe(string query)
IManagerSource caskSource = SourcesHelper.Factory.GetSourceOrDefault("Homebrew Cask");
IManagerSource currentSection = formulaeSource;

using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Status.ExecutablePath,
Arguments = $"search {query}",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
};
using var p = new Process { StartInfo = MakeBrewStartInfo($"search {query}") };
IProcessTaskLogger logger = TaskLogger.CreateNew(LoggableTaskType.FindPackages, p);
p.Start();

Expand Down Expand Up @@ -209,18 +203,7 @@ private IReadOnlyList<Package> ListInstalledByType(string typeFlag, string sourc
var packages = new List<Package>();
IManagerSource source = SourcesHelper.Factory.GetSourceOrDefault(sourceName);

using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Status.ExecutablePath,
Arguments = $"list {typeFlag} --versions",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
};
using var p = new Process { StartInfo = MakeBrewStartInfo($"list {typeFlag} --versions") };
IProcessTaskLogger logger = TaskLogger.CreateNew(LoggableTaskType.ListInstalledPackages, p);
p.Start();

Expand Down Expand Up @@ -250,18 +233,7 @@ protected override IReadOnlyList<Package> GetAvailableUpdates_UnSafe()
foreach (var pkg in GetInstalledPackages())
installed.TryAdd(pkg.Id, pkg);

using var p = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Status.ExecutablePath,
Arguments = "outdated --verbose",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
},
};
using var p = new Process { StartInfo = MakeBrewStartInfo("outdated --verbose") };
IProcessTaskLogger logger = TaskLogger.CreateNew(LoggableTaskType.ListUpdates, p);
p.Start();

Expand Down
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