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main: better error message if the global cache dir is unusable

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Fixes #19400
This commit is contained in:
achan1989
2025-01-30 13:10:17 +00:00
committed by GitHub
parent a3ee5215bb
commit f82d7e87a3
1 changed files with 9 additions and 1 deletions
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10
src/main.zig
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@@ -5002,8 +5002,16 @@ fn cmdBuild(gpa: Allocator, arena: Allocator, args: []const []const u8) !void {
var global_cache_directory: Directory = l: {
const p = override_global_cache_dir orelse try introspect.resolveGlobalCacheDir(arena);
const dir = fs.cwd().makeOpenPath(p, .{}) catch |err| {
const base_msg = "unable to open or create the global Zig cache at '{s}': {s}.{s}";
const extra = "\nIf this location is not writable then consider specifying an " ++
"alternative with the ZIG_GLOBAL_CACHE_DIR environment variable or the " ++
"--global-cache-dir option.";
const show_extra = err == error.AccessDenied or err == error.ReadOnlyFileSystem;
fatal(base_msg, .{ p, @errorName(err), if (show_extra) extra else "" });
};
break :l .{
.handle = try fs.cwd().makeOpenPath(p, .{}),
.handle = dir,
.path = p,
};
};