| 1 | const Directory = @This(); |
| 2 | |
| 3 | const std = @import("../../std.zig"); |
| 4 | const Io = std.Io; |
| 5 | const fs = std.fs; |
| 6 | const assert = std.debug.assert; |
| 7 | const fmt = std.fmt; |
| 8 | const Allocator = std.mem.Allocator; |
| 9 | |
| 10 | /// This field is redundant for operations that can act on the open directory handle |
| 11 | /// directly, but it is needed when passing the directory to a child process. |
| 12 | /// `null` means cwd. |
| 13 | path: ?[]const u8, |
| 14 | handle: Io.Dir, |
| 15 | |
| 16 | pub fn clone(d: Directory, arena: Allocator) Allocator.Error!Directory { |
| 17 | return .{ |
| 18 | .path = if (d.path) |p| try arena.dupe(u8, p) else null, |
| 19 | .handle = d.handle, |
| 20 | }; |
| 21 | } |
| 22 | |
| 23 | pub fn cwd() Directory { |
| 24 | return .{ |
| 25 | .path = null, |
| 26 | .handle = .cwd(), |
| 27 | }; |
| 28 | } |
| 29 | |
| 30 | pub fn join(self: Directory, allocator: Allocator, paths: []const []const u8) ![]u8 { |
| 31 | if (self.path) |p| { |
| 32 | // TODO clean way to do this with only 1 allocation |
| 33 | const part2 = try fs.path.join(allocator, paths); |
| 34 | defer allocator.free(part2); |
| 35 | return fs.path.join(allocator, &[_][]const u8{ p, part2 }); |
| 36 | } else { |
| 37 | return fs.path.join(allocator, paths); |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | pub fn joinZ(self: Directory, allocator: Allocator, paths: []const []const u8) ![:0]u8 { |
| 42 | if (self.path) |p| { |
| 43 | // TODO clean way to do this with only 1 allocation |
| 44 | const part2 = try fs.path.join(allocator, paths); |
| 45 | defer allocator.free(part2); |
| 46 | return fs.path.joinZ(allocator, &[_][]const u8{ p, part2 }); |
| 47 | } else { |
| 48 | return fs.path.joinZ(allocator, paths); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | /// Whether or not the handle should be closed, or the path should be freed |
| 53 | /// is determined by usage, however this function is provided for convenience |
| 54 | /// if it happens to be what the caller needs. |
| 55 | pub fn closeAndFree(self: *Directory, gpa: Allocator, io: Io) void { |
| 56 | self.handle.close(io); |
| 57 | if (self.path) |p| gpa.free(p); |
| 58 | self.* = undefined; |
| 59 | } |
| 60 | |
| 61 | pub fn format(self: Directory, writer: *std.Io.Writer) std.Io.Writer.Error!void { |
| 62 | if (self.path) |p| { |
| 63 | try writer.writeAll(p); |
| 64 | try writer.writeAll(fs.path.sep_str); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | pub fn eql(self: Directory, other: Directory) bool { |
| 69 | return self.handle.handle == other.handle.handle; |
| 70 | } |