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fuzzer web ui: resolve cwd in sources.tar

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because the wasm code needs to string match against debug information
This commit is contained in:
Andrew Kelley 2024-08-05 17:05:01 -07:00
parent 38227e9289
commit bfc2ee03e5
1 changed files with 13 additions and 1 deletions
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14
lib/std/Build/Fuzz/WebServer.zig
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@ -485,6 +485,8 @@ fn serveSourcesTar(ws: *WebServer, request: *std.http.Server.Request) !void {
};
std.mem.sortUnstable(Build.Cache.Path, deduped_paths, SortContext{}, SortContext.lessThan);
var cwd_cache: ?[]const u8 = null;
for (deduped_paths) |joined_path| {
var file = joined_path.root_dir.handle.openFile(joined_path.sub_path, .{}) catch |err| {
log.err("failed to open {}: {s}", .{ joined_path, @errorName(err) });
@ -506,7 +508,10 @@ fn serveSourcesTar(ws: *WebServer, request: *std.http.Server.Request) !void {
var file_header = std.tar.output.Header.init();
file_header.typeflag = .regular;
try file_header.setPath(joined_path.root_dir.path orelse ".", joined_path.sub_path);
try file_header.setPath(
joined_path.root_dir.path orelse try memoizedCwd(arena, &cwd_cache),
joined_path.sub_path,
);
try file_header.setSize(stat.size);
try file_header.updateChecksum();
try w.writeAll(std.mem.asBytes(&file_header));
@ -519,6 +524,13 @@ fn serveSourcesTar(ws: *WebServer, request: *std.http.Server.Request) !void {
try response.end();
}
fn memoizedCwd(arena: Allocator, opt_ptr: *?[]const u8) ![]const u8 {
if (opt_ptr.*) |cached| return cached;
const result = try std.process.getCwdAlloc(arena);
opt_ptr.* = result;
return result;
}
const cache_control_header: std.http.Header = .{
.name = "cache-control",
.value = "max-age=0, must-revalidate",