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|
root_dir: Cache.Directory,
/// The path, relative to the root dir, that this `Path` represents.
/// Empty string means the root_dir is the path.
sub_path: []const u8 = "",
pub fn clone(p: Path, arena: Allocator) Allocator.Error!Path {
return .{
.root_dir = try p.root_dir.clone(arena),
.sub_path = try arena.dupe(u8, p.sub_path),
};
}
pub fn cwd() Path {
return .{ .root_dir = Cache.Directory.cwd() };
}
pub fn join(p: Path, arena: Allocator, sub_path: []const u8) Allocator.Error!Path {
if (sub_path.len == 0) return p;
const parts: []const []const u8 =
if (p.sub_path.len == 0) &.{sub_path} else &.{ p.sub_path, sub_path };
return .{
.root_dir = p.root_dir,
.sub_path = try fs.path.join(arena, parts),
};
}
pub fn resolvePosix(p: Path, arena: Allocator, sub_path: []const u8) Allocator.Error!Path {
if (sub_path.len == 0) return p;
return .{
.root_dir = p.root_dir,
.sub_path = try fs.path.resolvePosix(arena, &.{ p.sub_path, sub_path }),
};
}
pub fn joinString(p: Path, gpa: Allocator, sub_path: []const u8) Allocator.Error![]u8 {
const parts: []const []const u8 =
if (p.sub_path.len == 0) &.{sub_path} else &.{ p.sub_path, sub_path };
return p.root_dir.join(gpa, parts);
}
pub fn joinStringZ(p: Path, gpa: Allocator, sub_path: []const u8) Allocator.Error![:0]u8 {
const parts: []const []const u8 =
if (p.sub_path.len == 0) &.{sub_path} else &.{ p.sub_path, sub_path };
return p.root_dir.joinZ(gpa, parts);
}
pub fn openFile(
p: Path,
sub_path: []const u8,
flags: fs.File.OpenFlags,
) !fs.File {
var buf: [fs.max_path_bytes]u8 = undefined;
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(&buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.openFile(joined_path, flags);
}
pub fn openDir(
p: Path,
sub_path: []const u8,
args: fs.Dir.OpenOptions,
) fs.Dir.OpenError!fs.Dir {
var buf: [fs.max_path_bytes]u8 = undefined;
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(&buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.openDir(joined_path, args);
}
pub fn makeOpenPath(p: Path, sub_path: []const u8, opts: fs.Dir.OpenOptions) !fs.Dir {
var buf: [fs.max_path_bytes]u8 = undefined;
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(&buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.makeOpenPath(joined_path, opts);
}
pub fn statFile(p: Path, sub_path: []const u8) !fs.Dir.Stat {
var buf: [fs.max_path_bytes]u8 = undefined;
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(&buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.statFile(joined_path);
}
pub fn atomicFile(
p: Path,
sub_path: []const u8,
options: fs.Dir.AtomicFileOptions,
buf: *[fs.max_path_bytes]u8,
) !fs.AtomicFile {
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.atomicFile(joined_path, options);
}
pub fn access(p: Path, sub_path: []const u8, flags: fs.File.OpenFlags) !void {
var buf: [fs.max_path_bytes]u8 = undefined;
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(&buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.access(joined_path, flags);
}
pub fn makePath(p: Path, sub_path: []const u8) !void {
var buf: [fs.max_path_bytes]u8 = undefined;
const joined_path = if (p.sub_path.len == 0) sub_path else p: {
break :p std.fmt.bufPrint(&buf, "{s}" ++ fs.path.sep_str ++ "{s}", .{
p.sub_path, sub_path,
}) catch return error.NameTooLong;
};
return p.root_dir.handle.makePath(joined_path);
}
pub fn format(
self: Path,
comptime fmt_string: []const u8,
options: std.fmt.FormatOptions,
writer: anytype,
) !void {
if (fmt_string.len == 1) {
// Quote-escape the string.
const stringEscape = std.zig.stringEscape;
const f = switch (fmt_string[0]) {
'q' => "",
'\'' => '\'',
else => @compileError("unsupported format string: " ++ fmt_string),
};
if (self.root_dir.path) |p| {
try stringEscape(p, f, options, writer);
if (self.sub_path.len > 0) try stringEscape(fs.path.sep_str, f, options, writer);
}
if (self.sub_path.len > 0) {
try stringEscape(self.sub_path, f, options, writer);
}
return;
}
if (fmt_string.len > 0)
std.fmt.invalidFmtError(fmt_string, self);
if (std.fs.path.isAbsolute(self.sub_path)) {
try writer.writeAll(self.sub_path);
return;
}
if (self.root_dir.path) |p| {
try writer.writeAll(p);
if (self.sub_path.len > 0) {
try writer.writeAll(fs.path.sep_str);
try writer.writeAll(self.sub_path);
}
return;
}
if (self.sub_path.len > 0) {
try writer.writeAll(self.sub_path);
return;
}
try writer.writeByte('.');
}
pub fn eql(self: Path, other: Path) bool {
return self.root_dir.eql(other.root_dir) and std.mem.eql(u8, self.sub_path, other.sub_path);
}
pub fn subPathOpt(self: Path) ?[]const u8 {
return if (self.sub_path.len == 0) null else self.sub_path;
}
pub fn subPathOrDot(self: Path) []const u8 {
return if (self.sub_path.len == 0) "." else self.sub_path;
}
/// Useful to make `Path` a key in `std.ArrayHashMap`.
pub const TableAdapter = struct {
pub const Hash = std.hash.Wyhash;
pub fn hash(self: TableAdapter, a: Cache.Path) u32 {
_ = self;
const seed = switch (@typeInfo(@TypeOf(a.root_dir.handle.fd))) {
.Pointer => @intFromPtr(a.root_dir.handle.fd),
.Int => @as(u32, @bitCast(a.root_dir.handle.fd)),
else => @compileError("unimplemented hash function"),
};
return @truncate(Hash.hash(seed, a.sub_path));
}
pub fn eql(self: TableAdapter, a: Cache.Path, b: Cache.Path, b_index: usize) bool {
_ = self;
_ = b_index;
return a.eql(b);
}
};
const Path = @This();
const std = @import("../../std.zig");
const fs = std.fs;
const Allocator = std.mem.Allocator;
const Cache = std.Build.Cache;
|
