99 lines
3.2 KiB
Zig
99 lines
3.2 KiB
Zig
const std = @import("std");
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const Linenoise = @import("linenoise").Linenoise;
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fn clear() !void {
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const stdout = std.io.getStdOut().writer();
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try stdout.print("\u{001b}[H\u{001b}[J", .{});
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}
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const Pipe = packed struct {
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const fd_t = std.posix.fd_t;
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read: fd_t,
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write: fd_t,
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};
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fn pipe() !Pipe {
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return @bitCast(try std.posix.pipe());
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}
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fn getPrompt() ![]const u8 {
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const p = try pipe();
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const close = std.posix.close;
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const dup2 = std.posix.dup2;
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const STDIN_FILENO = std.posix.STDIN_FILENO;
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const STDOUT_FILENO = std.posix.STDOUT_FILENO;
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const STDERR_FILENO = std.posix.STDERR_FILENO;
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const script = @embedFile("./get_prompt.bash");
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if (std.posix.fork()) |pid| {
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if (pid == 0) {
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close(p.read);
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try dup2(p.write, STDOUT_FILENO);
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close(STDIN_FILENO);
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close(STDERR_FILENO); // Do not print errors to the screen
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// Command-line arguments (must include program name as first argument)
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// const args = [_:null]?[*:0]const u8{ "bash", "-i", "-c", script, null };
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var args = [_:null]?[*:0]const u8{ "bash", "-i", "-c", script, null };
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try std.posix.execvpeZ("bash", &args, std.c.environ);
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// std.posix.execvpeZ("bash", @as([*:null]const ?[*:0]const u8, &args[0]), std.os.environ);
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_ = std.posix.execvpeZ("bash", @as([*:null]const ?[*:0]const u8, &args[0]), std.os.environ);
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// kill the child
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std.process.exit(0);
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} else {}
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return "";
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} else |err| {
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return err;
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}
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}
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pub fn main() !void {
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try clear();
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const allocator = std.heap.page_allocator;
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var ln = Linenoise.init(allocator);
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defer ln.deinit();
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_ = try getPrompt();
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while (try ln.linenoise("hello> ")) |input| {
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defer allocator.free(input);
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std.debug.print("input: {s}\n", .{input});
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try ln.history.add(input);
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}
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// // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
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// std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
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// // stdout is for the actual output of your application, for example if you
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// // are implementing gzip, then only the compressed bytes should be sent to
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// // stdout, not any debugging messages.
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// const stdout_file = std.io.getStdOut().writer();
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// var bw = std.io.bufferedWriter(stdout_file);
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// const stdout = bw.writer();
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// try stdout.print("Run `zig build test` to run the tests.\n", .{});
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// try bw.flush(); // Don't forget to flush!
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}
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test "simple test" {
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var list = std.ArrayList(i32).init(std.testing.allocator);
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defer list.deinit(); // Try commenting this out and see if zig detects the memory leak!
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try list.append(42);
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try std.testing.expectEqual(@as(i32, 42), list.pop());
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}
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test "fuzz example" {
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const Context = struct {
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fn testOne(context: @This(), input: []const u8) anyerror!void {
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_ = context;
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// Try passing `--fuzz` to `zig build test` and see if it manages to fail this test case!
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try std.testing.expect(!std.mem.eql(u8, "canyoufindme", input));
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}
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};
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try std.testing.fuzz(Context{}, Context.testOne, .{});
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}
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