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const std = @import("std");
const xdg = @import("xdg");
const zup = @import("root");
const Config = zup.Config;
const Installation = zup.Installation;
pub const params = "<NAME>";
pub const description = "Switches to a Zig version. Run `zup list -i` to see installed <NAME>s.";
pub const min_args = 1;
pub const max_args = 1;
pub fn main(comptime Result: type, config: Config, res: Result) !void {
const allocator = config.allocator;
const name = res.positionals[0];
if (!try Installation.isInstalled(allocator, name)) {
std.log.err(
"No installation by name {s} found, run `zup install {s}`",
.{ name, name },
);
return error.InstallationNotFound;
}
const target = blk: {
const data_home = try xdg.getDataHome(allocator, "zup");
defer allocator.free(data_home);
break :blk try std.fs.path.join(allocator, &.{ data_home, name, "zig" });
};
defer allocator.free(target);
var bin_home = try xdg.openBinHome(allocator);
defer bin_home.close();
bin_home.deleteFile("zig") catch {};
try bin_home.symLink(target, "zig", .{});
std.log.info("Switched to {s}", .{name});
}
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