truncatePath

pub fn truncatePath(
    maker: *Maker,
    arena: Allocator,
    dest_path: Path,
    asking_step_index: Configuration.Step.Index,
) Step.ExtendedMakeError!void

File

Code

pub fn truncatePath(
    maker: *Maker,
    arena: Allocator,
    dest_path: Path,
    asking_step_index: Configuration.Step.Index,
) Step.ExtendedMakeError!void {
    const graph = maker.graph;
    const io = graph.io;
    if (graph.verbose) try graph.handleVerbose(null, null, &.{
        "truncate", try dest_path.toString(arena),
    });
    const err = e: {
        var file = f: {
            break :f dest_path.root_dir.handle.createFile(io, dest_path.sub_path, .{}) catch |err| switch (err) {
                error.FileNotFound => {
                    const parent_path = dest_path.dirname() orelse break :e err;
                    parent_path.root_dir.handle.createDirPath(io, parent_path.sub_path) catch |in| switch (in) {
                        error.Canceled => |e| return e,
                        else => |e| {
                            const s = stepByIndex(maker, asking_step_index);
                            return s.fail(maker, "failed creating directory {f}: {t}", .{ parent_path, e });
                        },
                    };
                    break :f dest_path.root_dir.handle.createFile(io, dest_path.sub_path, .{}) catch |in| break :e in;
                },
                error.Canceled => |e| return e,
                else => |e| break :e e,
            };
        };
        file.close(io);
        return;
    };
    const s = stepByIndex(maker, asking_step_index);
    return s.fail(maker, "failed truncating file {f}: {t}", .{ dest_path, err });
}