zig/tools/doctest.zig

1544 lines
62 KiB
Zig

const builtin = @import("builtin");
const std = @import("std");
const fatal = std.zig.fatal;
const mem = std.mem;
const fs = std.fs;
const process = std.process;
const Allocator = std.mem.Allocator;
const testing = std.testing;
const getExternalExecutor = std.zig.system.getExternalExecutor;
const max_doc_file_size = 10 * 1024 * 1024;
const usage =
\\Usage: doctest [options] -i input -o output
\\
\\ Compiles and possibly runs a code example, capturing output and rendering
\\ it to HTML documentation.
\\
\\Options:
\\ -h, --help Print this help and exit
\\ -i input Source code file path
\\ -o output Where to write output HTML docs to
\\ --zig zig Path to the zig compiler
\\ --zig-lib-dir dir Override the zig compiler library path
\\ --cache-root dir Path to local .zig-cache/
\\
;
pub fn main() !void {
var arena_instance = std.heap.ArenaAllocator.init(std.heap.page_allocator);
defer arena_instance.deinit();
const arena = arena_instance.allocator();
var args_it = try process.argsWithAllocator(arena);
if (!args_it.skip()) fatal("missing argv[0]", .{});
var opt_input: ?[]const u8 = null;
var opt_output: ?[]const u8 = null;
var opt_zig: ?[]const u8 = null;
var opt_zig_lib_dir: ?[]const u8 = null;
var opt_cache_root: ?[]const u8 = null;
while (args_it.next()) |arg| {
if (mem.startsWith(u8, arg, "-")) {
if (mem.eql(u8, arg, "-h") or mem.eql(u8, arg, "--help")) {
try std.io.getStdOut().writeAll(usage);
process.exit(0);
} else if (mem.eql(u8, arg, "-i")) {
opt_input = args_it.next() orelse fatal("expected parameter after -i", .{});
} else if (mem.eql(u8, arg, "-o")) {
opt_output = args_it.next() orelse fatal("expected parameter after -o", .{});
} else if (mem.eql(u8, arg, "--zig")) {
opt_zig = args_it.next() orelse fatal("expected parameter after --zig", .{});
} else if (mem.eql(u8, arg, "--zig-lib-dir")) {
opt_zig_lib_dir = args_it.next() orelse fatal("expected parameter after --zig-lib-dir", .{});
} else if (mem.eql(u8, arg, "--cache-root")) {
opt_cache_root = args_it.next() orelse fatal("expected parameter after --cache-root", .{});
} else {
fatal("unrecognized option: '{s}'", .{arg});
}
} else {
fatal("unexpected positional argument: '{s}'", .{arg});
}
}
const input_path = opt_input orelse fatal("missing input file (-i)", .{});
const output_path = opt_output orelse fatal("missing output file (-o)", .{});
const zig_path = opt_zig orelse fatal("missing zig compiler path (--zig)", .{});
const cache_root = opt_cache_root orelse fatal("missing cache root path (--cache-root)", .{});
const source_bytes = try fs.cwd().readFileAlloc(arena, input_path, std.math.maxInt(u32));
const code = try parseManifest(arena, source_bytes);
const source = stripManifest(source_bytes);
const tmp_dir_path = try std.fmt.allocPrint(arena, "{s}/tmp/{x}", .{
cache_root, std.crypto.random.int(u64),
});
fs.cwd().makePath(tmp_dir_path) catch |err|
fatal("unable to create tmp dir '{s}': {s}", .{ tmp_dir_path, @errorName(err) });
defer fs.cwd().deleteTree(tmp_dir_path) catch |err| std.log.err("unable to delete '{s}': {s}", .{
tmp_dir_path, @errorName(err),
});
var out_file = try fs.cwd().createFile(output_path, .{});
defer out_file.close();
var bw = std.io.bufferedWriter(out_file.writer());
const out = bw.writer();
try printSourceBlock(arena, out, source, fs.path.basename(input_path));
try printOutput(arena, out, code, input_path, zig_path, opt_zig_lib_dir, tmp_dir_path);
try bw.flush();
}
fn printOutput(
arena: Allocator,
out: anytype,
code: Code,
input_path: []const u8,
zig_exe: []const u8,
opt_zig_lib_dir: ?[]const u8,
tmp_dir_path: []const u8,
) !void {
var env_map = try process.getEnvMap(arena);
try env_map.put("CLICOLOR_FORCE", "1");
const host = try std.zig.system.resolveTargetQuery(.{});
const obj_ext = builtin.object_format.fileExt(builtin.cpu.arch);
const print = std.debug.print;
var shell_buffer = std.ArrayList(u8).init(arena);
defer shell_buffer.deinit();
var shell_out = shell_buffer.writer();
const code_name = std.fs.path.stem(input_path);
switch (code.id) {
.exe => |expected_outcome| code_block: {
var build_args = std.ArrayList([]const u8).init(arena);
defer build_args.deinit();
try build_args.appendSlice(&[_][]const u8{
zig_exe, "build-exe",
"--name", code_name,
"--color", "on",
input_path,
});
if (opt_zig_lib_dir) |zig_lib_dir| {
try build_args.appendSlice(&.{ "--zig-lib-dir", zig_lib_dir });
}
try shell_out.print("$ zig build-exe {s}.zig ", .{code_name});
switch (code.mode) {
.Debug => {},
else => {
try build_args.appendSlice(&[_][]const u8{ "-O", @tagName(code.mode) });
try shell_out.print("-O {s} ", .{@tagName(code.mode)});
},
}
for (code.link_objects) |link_object| {
const name_with_ext = try std.fmt.allocPrint(arena, "{s}{s}", .{ link_object, obj_ext });
try build_args.append(name_with_ext);
try shell_out.print("{s} ", .{name_with_ext});
}
if (code.link_libc) {
try build_args.append("-lc");
try shell_out.print("-lc ", .{});
}
if (code.target_str) |triple| {
try build_args.appendSlice(&[_][]const u8{ "-target", triple });
try shell_out.print("-target {s} ", .{triple});
}
if (code.verbose_cimport) {
try build_args.append("--verbose-cimport");
try shell_out.print("--verbose-cimport ", .{});
}
for (code.additional_options) |option| {
try build_args.append(option);
try shell_out.print("{s} ", .{option});
}
try shell_out.print("\n", .{});
if (expected_outcome == .build_fail) {
const result = try process.Child.run(.{
.allocator = arena,
.argv = build_args.items,
.cwd = tmp_dir_path,
.env_map = &env_map,
.max_output_bytes = max_doc_file_size,
});
switch (result.term) {
.Exited => |exit_code| {
if (exit_code == 0) {
print("{s}\nThe following command incorrectly succeeded:\n", .{result.stderr});
dumpArgs(build_args.items);
fatal("example incorrectly compiled", .{});
}
},
else => {
print("{s}\nThe following command crashed:\n", .{result.stderr});
dumpArgs(build_args.items);
fatal("example compile crashed", .{});
},
}
const escaped_stderr = try escapeHtml(arena, result.stderr);
const colored_stderr = try termColor(arena, escaped_stderr);
try shell_out.writeAll(colored_stderr);
break :code_block;
}
const exec_result = run(arena, &env_map, tmp_dir_path, build_args.items) catch
fatal("example failed to compile", .{});
if (code.verbose_cimport) {
const escaped_build_stderr = try escapeHtml(arena, exec_result.stderr);
try shell_out.writeAll(escaped_build_stderr);
}
if (code.target_str) |triple| {
if (mem.startsWith(u8, triple, "wasm32") or
mem.startsWith(u8, triple, "riscv64-linux") or
(mem.startsWith(u8, triple, "x86_64-linux") and
builtin.os.tag != .linux or builtin.cpu.arch != .x86_64))
{
// skip execution
break :code_block;
}
}
const target_query = try std.Target.Query.parse(.{
.arch_os_abi = code.target_str orelse "native",
});
const target = try std.zig.system.resolveTargetQuery(target_query);
const path_to_exe = try std.fmt.allocPrint(arena, "./{s}{s}", .{
code_name, target.exeFileExt(),
});
const run_args = &[_][]const u8{path_to_exe};
var exited_with_signal = false;
const result = if (expected_outcome == .fail) blk: {
const result = try process.Child.run(.{
.allocator = arena,
.argv = run_args,
.env_map = &env_map,
.cwd = tmp_dir_path,
.max_output_bytes = max_doc_file_size,
});
switch (result.term) {
.Exited => |exit_code| {
if (exit_code == 0) {
print("{s}\nThe following command incorrectly succeeded:\n", .{result.stderr});
dumpArgs(run_args);
fatal("example incorrectly compiled", .{});
}
},
.Signal => exited_with_signal = true,
else => {},
}
break :blk result;
} else blk: {
break :blk run(arena, &env_map, tmp_dir_path, run_args) catch
fatal("example crashed", .{});
};
const escaped_stderr = try escapeHtml(arena, result.stderr);
const escaped_stdout = try escapeHtml(arena, result.stdout);
const colored_stderr = try termColor(arena, escaped_stderr);
const colored_stdout = try termColor(arena, escaped_stdout);
try shell_out.print("$ ./{s}\n{s}{s}", .{ code_name, colored_stdout, colored_stderr });
if (exited_with_signal) {
try shell_out.print("(process terminated by signal)", .{});
}
try shell_out.writeAll("\n");
},
.@"test" => {
var test_args = std.ArrayList([]const u8).init(arena);
defer test_args.deinit();
try test_args.appendSlice(&[_][]const u8{
zig_exe, "test", input_path,
});
if (opt_zig_lib_dir) |zig_lib_dir| {
try test_args.appendSlice(&.{ "--zig-lib-dir", zig_lib_dir });
}
try shell_out.print("$ zig test {s}.zig ", .{code_name});
switch (code.mode) {
.Debug => {},
else => {
try test_args.appendSlice(&[_][]const u8{
"-O", @tagName(code.mode),
});
try shell_out.print("-O {s} ", .{@tagName(code.mode)});
},
}
if (code.link_libc) {
try test_args.append("-lc");
try shell_out.print("-lc ", .{});
}
if (code.target_str) |triple| {
try test_args.appendSlice(&[_][]const u8{ "-target", triple });
try shell_out.print("-target {s} ", .{triple});
const target_query = try std.Target.Query.parse(.{
.arch_os_abi = triple,
});
const target = try std.zig.system.resolveTargetQuery(
target_query,
);
switch (getExternalExecutor(host, &target, .{
.link_libc = code.link_libc,
})) {
.native => {},
else => {
try test_args.appendSlice(&[_][]const u8{"--test-no-exec"});
try shell_out.writeAll("--test-no-exec");
},
}
}
const result = run(arena, &env_map, null, test_args.items) catch
fatal("test failed", .{});
const escaped_stderr = try escapeHtml(arena, result.stderr);
const escaped_stdout = try escapeHtml(arena, result.stdout);
try shell_out.print("\n{s}{s}\n", .{ escaped_stderr, escaped_stdout });
},
.test_error => |error_match| {
var test_args = std.ArrayList([]const u8).init(arena);
defer test_args.deinit();
try test_args.appendSlice(&[_][]const u8{
zig_exe, "test",
"--color", "on",
input_path,
});
if (opt_zig_lib_dir) |zig_lib_dir| {
try test_args.appendSlice(&.{ "--zig-lib-dir", zig_lib_dir });
}
try shell_out.print("$ zig test {s}.zig ", .{code_name});
switch (code.mode) {
.Debug => {},
else => {
try test_args.appendSlice(&[_][]const u8{ "-O", @tagName(code.mode) });
try shell_out.print("-O {s} ", .{@tagName(code.mode)});
},
}
if (code.link_libc) {
try test_args.append("-lc");
try shell_out.print("-lc ", .{});
}
const result = try process.Child.run(.{
.allocator = arena,
.argv = test_args.items,
.env_map = &env_map,
.max_output_bytes = max_doc_file_size,
});
switch (result.term) {
.Exited => |exit_code| {
if (exit_code == 0) {
print("{s}\nThe following command incorrectly succeeded:\n", .{result.stderr});
dumpArgs(test_args.items);
fatal("example incorrectly compiled", .{});
}
},
else => {
print("{s}\nThe following command crashed:\n", .{result.stderr});
dumpArgs(test_args.items);
fatal("example compile crashed", .{});
},
}
if (mem.indexOf(u8, result.stderr, error_match) == null) {
print("{s}\nExpected to find '{s}' in stderr\n", .{ result.stderr, error_match });
fatal("example did not have expected compile error", .{});
}
const escaped_stderr = try escapeHtml(arena, result.stderr);
const colored_stderr = try termColor(arena, escaped_stderr);
try shell_out.print("\n{s}\n", .{colored_stderr});
},
.test_safety => |error_match| {
var test_args = std.ArrayList([]const u8).init(arena);
defer test_args.deinit();
try test_args.appendSlice(&[_][]const u8{
zig_exe, "test",
input_path,
});
if (opt_zig_lib_dir) |zig_lib_dir| {
try test_args.appendSlice(&.{ "--zig-lib-dir", zig_lib_dir });
}
var mode_arg: []const u8 = "";
switch (code.mode) {
.Debug => {},
.ReleaseSafe => {
try test_args.append("-OReleaseSafe");
mode_arg = "-OReleaseSafe";
},
.ReleaseFast => {
try test_args.append("-OReleaseFast");
mode_arg = "-OReleaseFast";
},
.ReleaseSmall => {
try test_args.append("-OReleaseSmall");
mode_arg = "-OReleaseSmall";
},
}
const result = try process.Child.run(.{
.allocator = arena,
.argv = test_args.items,
.env_map = &env_map,
.max_output_bytes = max_doc_file_size,
});
switch (result.term) {
.Exited => |exit_code| {
if (exit_code == 0) {
print("{s}\nThe following command incorrectly succeeded:\n", .{result.stderr});
dumpArgs(test_args.items);
fatal("example test incorrectly succeeded", .{});
}
},
else => {
print("{s}\nThe following command crashed:\n", .{result.stderr});
dumpArgs(test_args.items);
fatal("example compile crashed", .{});
},
}
if (mem.indexOf(u8, result.stderr, error_match) == null) {
print("{s}\nExpected to find '{s}' in stderr\n", .{ result.stderr, error_match });
fatal("example did not have expected runtime safety error message", .{});
}
const escaped_stderr = try escapeHtml(arena, result.stderr);
const colored_stderr = try termColor(arena, escaped_stderr);
try shell_out.print("$ zig test {s}.zig {s}\n{s}\n", .{
code_name,
mode_arg,
colored_stderr,
});
},
.obj => |maybe_error_match| {
const name_plus_obj_ext = try std.fmt.allocPrint(arena, "{s}{s}", .{ code_name, obj_ext });
var build_args = std.ArrayList([]const u8).init(arena);
defer build_args.deinit();
try build_args.appendSlice(&[_][]const u8{
zig_exe, "build-obj",
"--color", "on",
"--name", code_name,
input_path,
try std.fmt.allocPrint(arena, "-femit-bin={s}{c}{s}", .{
tmp_dir_path, fs.path.sep, name_plus_obj_ext,
}),
});
if (opt_zig_lib_dir) |zig_lib_dir| {
try build_args.appendSlice(&.{ "--zig-lib-dir", zig_lib_dir });
}
try shell_out.print("$ zig build-obj {s}.zig ", .{code_name});
switch (code.mode) {
.Debug => {},
else => {
try build_args.appendSlice(&[_][]const u8{ "-O", @tagName(code.mode) });
try shell_out.print("-O {s} ", .{@tagName(code.mode)});
},
}
if (code.target_str) |triple| {
try build_args.appendSlice(&[_][]const u8{ "-target", triple });
try shell_out.print("-target {s} ", .{triple});
}
for (code.additional_options) |option| {
try build_args.append(option);
try shell_out.print("{s} ", .{option});
}
if (maybe_error_match) |error_match| {
const result = try process.Child.run(.{
.allocator = arena,
.argv = build_args.items,
.env_map = &env_map,
.max_output_bytes = max_doc_file_size,
});
switch (result.term) {
.Exited => |exit_code| {
if (exit_code == 0) {
print("{s}\nThe following command incorrectly succeeded:\n", .{result.stderr});
dumpArgs(build_args.items);
fatal("example build incorrectly succeeded", .{});
}
},
else => {
print("{s}\nThe following command crashed:\n", .{result.stderr});
dumpArgs(build_args.items);
fatal("example compile crashed", .{});
},
}
if (mem.indexOf(u8, result.stderr, error_match) == null) {
print("{s}\nExpected to find '{s}' in stderr\n", .{ result.stderr, error_match });
fatal("example did not have expected compile error message", .{});
}
const escaped_stderr = try escapeHtml(arena, result.stderr);
const colored_stderr = try termColor(arena, escaped_stderr);
try shell_out.print("\n{s} ", .{colored_stderr});
} else {
_ = run(arena, &env_map, null, build_args.items) catch fatal("example failed to compile", .{});
}
try shell_out.writeAll("\n");
},
.lib => {
const bin_basename = try std.zig.binNameAlloc(arena, .{
.root_name = code_name,
.target = builtin.target,
.output_mode = .Lib,
});
var test_args = std.ArrayList([]const u8).init(arena);
defer test_args.deinit();
try test_args.appendSlice(&[_][]const u8{
zig_exe, "build-lib",
input_path,
try std.fmt.allocPrint(arena, "-femit-bin={s}{s}{s}", .{
tmp_dir_path, fs.path.sep_str, bin_basename,
}),
});
if (opt_zig_lib_dir) |zig_lib_dir| {
try test_args.appendSlice(&.{ "--zig-lib-dir", zig_lib_dir });
}
try shell_out.print("$ zig build-lib {s}.zig ", .{code_name});
switch (code.mode) {
.Debug => {},
else => {
try test_args.appendSlice(&[_][]const u8{ "-O", @tagName(code.mode) });
try shell_out.print("-O {s} ", .{@tagName(code.mode)});
},
}
if (code.target_str) |triple| {
try test_args.appendSlice(&[_][]const u8{ "-target", triple });
try shell_out.print("-target {s} ", .{triple});
}
if (code.link_mode) |link_mode| {
switch (link_mode) {
.static => {
try test_args.append("-static");
try shell_out.print("-static ", .{});
},
.dynamic => {
try test_args.append("-dynamic");
try shell_out.print("-dynamic ", .{});
},
}
}
for (code.additional_options) |option| {
try test_args.append(option);
try shell_out.print("{s} ", .{option});
}
const result = run(arena, &env_map, null, test_args.items) catch fatal("test failed", .{});
const escaped_stderr = try escapeHtml(arena, result.stderr);
const escaped_stdout = try escapeHtml(arena, result.stdout);
try shell_out.print("\n{s}{s}\n", .{ escaped_stderr, escaped_stdout });
},
}
if (!code.just_check_syntax) {
try printShell(out, shell_buffer.items, false);
}
}
fn dumpArgs(args: []const []const u8) void {
for (args) |arg|
std.debug.print("{s} ", .{arg})
else
std.debug.print("\n", .{});
}
fn printSourceBlock(arena: Allocator, out: anytype, source_bytes: []const u8, name: []const u8) !void {
try out.print("<figure><figcaption class=\"{s}-cap\"><cite class=\"file\">{s}</cite></figcaption><pre>", .{
"zig", name,
});
try tokenizeAndPrint(arena, out, source_bytes);
try out.writeAll("</pre></figure>");
}
fn tokenizeAndPrint(arena: Allocator, out: anytype, raw_src: []const u8) !void {
const src_non_terminated = mem.trim(u8, raw_src, " \r\n");
const src = try arena.dupeZ(u8, src_non_terminated);
try out.writeAll("<code>");
var tokenizer = std.zig.Tokenizer.init(src);
var index: usize = 0;
var next_tok_is_fn = false;
while (true) {
const prev_tok_was_fn = next_tok_is_fn;
next_tok_is_fn = false;
const token = tokenizer.next();
if (mem.indexOf(u8, src[index..token.loc.start], "//")) |comment_start_off| {
// render one comment
const comment_start = index + comment_start_off;
const comment_end_off = mem.indexOf(u8, src[comment_start..token.loc.start], "\n");
const comment_end = if (comment_end_off) |o| comment_start + o else token.loc.start;
try writeEscapedLines(out, src[index..comment_start]);
try out.writeAll("<span class=\"tok-comment\">");
try writeEscaped(out, src[comment_start..comment_end]);
try out.writeAll("</span>");
index = comment_end;
tokenizer.index = index;
continue;
}
try writeEscapedLines(out, src[index..token.loc.start]);
switch (token.tag) {
.eof => break,
.keyword_addrspace,
.keyword_align,
.keyword_and,
.keyword_asm,
.keyword_async,
.keyword_await,
.keyword_break,
.keyword_catch,
.keyword_comptime,
.keyword_const,
.keyword_continue,
.keyword_defer,
.keyword_else,
.keyword_enum,
.keyword_errdefer,
.keyword_error,
.keyword_export,
.keyword_extern,
.keyword_for,
.keyword_if,
.keyword_inline,
.keyword_noalias,
.keyword_noinline,
.keyword_nosuspend,
.keyword_opaque,
.keyword_or,
.keyword_orelse,
.keyword_packed,
.keyword_anyframe,
.keyword_pub,
.keyword_resume,
.keyword_return,
.keyword_linksection,
.keyword_callconv,
.keyword_struct,
.keyword_suspend,
.keyword_switch,
.keyword_test,
.keyword_threadlocal,
.keyword_try,
.keyword_union,
.keyword_unreachable,
.keyword_usingnamespace,
.keyword_var,
.keyword_volatile,
.keyword_allowzero,
.keyword_while,
.keyword_anytype,
=> {
try out.writeAll("<span class=\"tok-kw\">");
try writeEscaped(out, src[token.loc.start..token.loc.end]);
try out.writeAll("</span>");
},
.keyword_fn => {
try out.writeAll("<span class=\"tok-kw\">");
try writeEscaped(out, src[token.loc.start..token.loc.end]);
try out.writeAll("</span>");
next_tok_is_fn = true;
},
.string_literal,
.multiline_string_literal_line,
.char_literal,
=> {
try out.writeAll("<span class=\"tok-str\">");
try writeEscaped(out, src[token.loc.start..token.loc.end]);
try out.writeAll("</span>");
},
.builtin => {
try out.writeAll("<span class=\"tok-builtin\">");
try writeEscaped(out, src[token.loc.start..token.loc.end]);
try out.writeAll("</span>");
},
.doc_comment,
.container_doc_comment,
=> {
try out.writeAll("<span class=\"tok-comment\">");
try writeEscaped(out, src[token.loc.start..token.loc.end]);
try out.writeAll("</span>");
},
.identifier => {
const tok_bytes = src[token.loc.start..token.loc.end];
if (mem.eql(u8, tok_bytes, "undefined") or
mem.eql(u8, tok_bytes, "null") or
mem.eql(u8, tok_bytes, "true") or
mem.eql(u8, tok_bytes, "false"))
{
try out.writeAll("<span class=\"tok-null\">");
try writeEscaped(out, tok_bytes);
try out.writeAll("</span>");
} else if (prev_tok_was_fn) {
try out.writeAll("<span class=\"tok-fn\">");
try writeEscaped(out, tok_bytes);
try out.writeAll("</span>");
} else {
const is_int = blk: {
if (src[token.loc.start] != 'i' and src[token.loc.start] != 'u')
break :blk false;
var i = token.loc.start + 1;
if (i == token.loc.end)
break :blk false;
while (i != token.loc.end) : (i += 1) {
if (src[i] < '0' or src[i] > '9')
break :blk false;
}
break :blk true;
};
const isType = std.zig.isPrimitive;
if (is_int or isType(tok_bytes)) {
try out.writeAll("<span class=\"tok-type\">");
try writeEscaped(out, tok_bytes);
try out.writeAll("</span>");
} else {
try writeEscaped(out, tok_bytes);
}
}
},
.number_literal => {
try out.writeAll("<span class=\"tok-number\">");
try writeEscaped(out, src[token.loc.start..token.loc.end]);
try out.writeAll("</span>");
},
.bang,
.pipe,
.pipe_pipe,
.pipe_equal,
.equal,
.equal_equal,
.equal_angle_bracket_right,
.bang_equal,
.l_paren,
.r_paren,
.semicolon,
.percent,
.percent_equal,
.l_brace,
.r_brace,
.l_bracket,
.r_bracket,
.period,
.period_asterisk,
.ellipsis2,
.ellipsis3,
.caret,
.caret_equal,
.plus,
.plus_plus,
.plus_equal,
.plus_percent,
.plus_percent_equal,
.plus_pipe,
.plus_pipe_equal,
.minus,
.minus_equal,
.minus_percent,
.minus_percent_equal,
.minus_pipe,
.minus_pipe_equal,
.asterisk,
.asterisk_equal,
.asterisk_asterisk,
.asterisk_percent,
.asterisk_percent_equal,
.asterisk_pipe,
.asterisk_pipe_equal,
.arrow,
.colon,
.slash,
.slash_equal,
.comma,
.ampersand,
.ampersand_equal,
.question_mark,
.angle_bracket_left,
.angle_bracket_left_equal,
.angle_bracket_angle_bracket_left,
.angle_bracket_angle_bracket_left_equal,
.angle_bracket_angle_bracket_left_pipe,
.angle_bracket_angle_bracket_left_pipe_equal,
.angle_bracket_right,
.angle_bracket_right_equal,
.angle_bracket_angle_bracket_right,
.angle_bracket_angle_bracket_right_equal,
.tilde,
=> try writeEscaped(out, src[token.loc.start..token.loc.end]),
.invalid, .invalid_periodasterisks => fatal("syntax error", .{}),
}
index = token.loc.end;
}
try out.writeAll("</code>");
}
fn writeEscapedLines(out: anytype, text: []const u8) !void {
return writeEscaped(out, text);
}
const Code = struct {
id: Id,
mode: std.builtin.OptimizeMode,
link_objects: []const []const u8,
target_str: ?[]const u8,
link_libc: bool,
link_mode: ?std.builtin.LinkMode,
disable_cache: bool,
verbose_cimport: bool,
just_check_syntax: bool,
additional_options: []const []const u8,
const Id = union(enum) {
@"test",
test_error: []const u8,
test_safety: []const u8,
exe: ExpectedOutcome,
obj: ?[]const u8,
lib,
};
const ExpectedOutcome = enum {
succeed,
fail,
build_fail,
};
};
fn stripManifest(source_bytes: []const u8) []const u8 {
const manifest_start = mem.lastIndexOf(u8, source_bytes, "\n\n// ") orelse
fatal("missing manifest comment", .{});
return source_bytes[0 .. manifest_start + 1];
}
fn parseManifest(arena: Allocator, source_bytes: []const u8) !Code {
const manifest_start = mem.lastIndexOf(u8, source_bytes, "\n\n// ") orelse
fatal("missing manifest comment", .{});
var it = mem.tokenizeScalar(u8, source_bytes[manifest_start..], '\n');
const first_line = skipPrefix(it.next().?);
var just_check_syntax = false;
const id: Code.Id = if (mem.eql(u8, first_line, "syntax")) blk: {
just_check_syntax = true;
break :blk .{ .obj = null };
} else if (mem.eql(u8, first_line, "test"))
.@"test"
else if (mem.eql(u8, first_line, "lib"))
.lib
else if (mem.eql(u8, first_line, "obj"))
.{ .obj = null }
else if (mem.startsWith(u8, first_line, "test_error="))
.{ .test_error = first_line["test_error=".len..] }
else if (mem.startsWith(u8, first_line, "test_safety="))
.{ .test_safety = first_line["test_safety=".len..] }
else if (mem.startsWith(u8, first_line, "exe="))
.{ .exe = std.meta.stringToEnum(Code.ExpectedOutcome, first_line["exe=".len..]) orelse
fatal("bad exe expected outcome in line '{s}'", .{first_line}) }
else if (mem.startsWith(u8, first_line, "obj="))
.{ .obj = first_line["obj=".len..] }
else
fatal("unrecognized manifest id: '{s}'", .{first_line});
var mode: std.builtin.OptimizeMode = .Debug;
var link_mode: ?std.builtin.LinkMode = null;
var link_objects: std.ArrayListUnmanaged([]const u8) = .empty;
var additional_options: std.ArrayListUnmanaged([]const u8) = .empty;
var target_str: ?[]const u8 = null;
var link_libc = false;
var disable_cache = false;
var verbose_cimport = false;
while (it.next()) |prefixed_line| {
const line = skipPrefix(prefixed_line);
if (mem.startsWith(u8, line, "optimize=")) {
mode = std.meta.stringToEnum(std.builtin.OptimizeMode, line["optimize=".len..]) orelse
fatal("bad optimization mode line: '{s}'", .{line});
} else if (mem.startsWith(u8, line, "link_mode=")) {
link_mode = std.meta.stringToEnum(std.builtin.LinkMode, line["link_mode=".len..]) orelse
fatal("bad link mode line: '{s}'", .{line});
} else if (mem.startsWith(u8, line, "link_object=")) {
try link_objects.append(arena, line["link_object=".len..]);
} else if (mem.startsWith(u8, line, "additional_option=")) {
try additional_options.append(arena, line["additional_option=".len..]);
} else if (mem.startsWith(u8, line, "target=")) {
target_str = line["target=".len..];
} else if (mem.eql(u8, line, "link_libc")) {
link_libc = true;
} else if (mem.eql(u8, line, "disable_cache")) {
disable_cache = true;
} else if (mem.eql(u8, line, "verbose_cimport")) {
verbose_cimport = true;
} else {
fatal("unrecognized manifest line: {s}", .{line});
}
}
return .{
.id = id,
.mode = mode,
.additional_options = try additional_options.toOwnedSlice(arena),
.link_objects = try link_objects.toOwnedSlice(arena),
.target_str = target_str,
.link_libc = link_libc,
.link_mode = link_mode,
.disable_cache = disable_cache,
.verbose_cimport = verbose_cimport,
.just_check_syntax = just_check_syntax,
};
}
fn skipPrefix(line: []const u8) []const u8 {
if (!mem.startsWith(u8, line, "// ")) {
fatal("line does not start with '// ': '{s}", .{line});
}
return line[3..];
}
fn escapeHtml(allocator: Allocator, input: []const u8) ![]u8 {
var buf = std.ArrayList(u8).init(allocator);
defer buf.deinit();
const out = buf.writer();
try writeEscaped(out, input);
return try buf.toOwnedSlice();
}
fn writeEscaped(out: anytype, input: []const u8) !void {
for (input) |c| {
try switch (c) {
'&' => out.writeAll("&amp;"),
'<' => out.writeAll("&lt;"),
'>' => out.writeAll("&gt;"),
'"' => out.writeAll("&quot;"),
else => out.writeByte(c),
};
}
}
fn termColor(allocator: Allocator, input: []const u8) ![]u8 {
// The SRG sequences generates by the Zig compiler are in the format:
// ESC [ <foreground-color> ; <n> m
// or
// ESC [ <n> m
//
// where
// foreground-color is 31 (red), 32 (green), 36 (cyan)
// n is 0 (reset), 1 (bold), 2 (dim)
//
// Note that 37 (white) is currently not used by the compiler.
//
// See std.debug.TTY.Color.
const supported_sgr_colors = [_]u8{ 31, 32, 36 };
const supported_sgr_numbers = [_]u8{ 0, 1, 2 };
var buf = std.ArrayList(u8).init(allocator);
defer buf.deinit();
var out = buf.writer();
var sgr_param_start_index: usize = undefined;
var sgr_num: u8 = undefined;
var sgr_color: u8 = undefined;
var i: usize = 0;
var state: enum {
start,
escape,
lbracket,
number,
after_number,
arg,
arg_number,
expect_end,
} = .start;
var last_new_line: usize = 0;
var open_span_count: usize = 0;
while (i < input.len) : (i += 1) {
const c = input[i];
switch (state) {
.start => switch (c) {
'\x1b' => state = .escape,
'\n' => {
try out.writeByte(c);
last_new_line = buf.items.len;
},
else => try out.writeByte(c),
},
.escape => switch (c) {
'[' => state = .lbracket,
else => return error.UnsupportedEscape,
},
.lbracket => switch (c) {
'0'...'9' => {
sgr_param_start_index = i;
state = .number;
},
else => return error.UnsupportedEscape,
},
.number => switch (c) {
'0'...'9' => {},
else => {
sgr_num = try std.fmt.parseInt(u8, input[sgr_param_start_index..i], 10);
sgr_color = 0;
state = .after_number;
i -= 1;
},
},
.after_number => switch (c) {
';' => state = .arg,
'D' => state = .start,
'K' => {
buf.items.len = last_new_line;
state = .start;
},
else => {
state = .expect_end;
i -= 1;
},
},
.arg => switch (c) {
'0'...'9' => {
sgr_param_start_index = i;
state = .arg_number;
},
else => return error.UnsupportedEscape,
},
.arg_number => switch (c) {
'0'...'9' => {},
else => {
// Keep the sequence consistent, foreground color first.
// 32;1m is equivalent to 1;32m, but the latter will
// generate an incorrect HTML class without notice.
sgr_color = sgr_num;
if (!in(&supported_sgr_colors, sgr_color)) return error.UnsupportedForegroundColor;
sgr_num = try std.fmt.parseInt(u8, input[sgr_param_start_index..i], 10);
if (!in(&supported_sgr_numbers, sgr_num)) return error.UnsupportedNumber;
state = .expect_end;
i -= 1;
},
},
.expect_end => switch (c) {
'm' => {
state = .start;
while (open_span_count != 0) : (open_span_count -= 1) {
try out.writeAll("</span>");
}
if (sgr_num == 0) {
if (sgr_color != 0) return error.UnsupportedColor;
continue;
}
if (sgr_color != 0) {
try out.print("<span class=\"sgr-{d}_{d}m\">", .{ sgr_color, sgr_num });
} else {
try out.print("<span class=\"sgr-{d}m\">", .{sgr_num});
}
open_span_count += 1;
},
else => return error.UnsupportedEscape,
},
}
}
return try buf.toOwnedSlice();
}
// Returns true if number is in slice.
fn in(slice: []const u8, number: u8) bool {
return mem.indexOfScalar(u8, slice, number) != null;
}
fn run(
allocator: Allocator,
env_map: *process.EnvMap,
cwd: ?[]const u8,
args: []const []const u8,
) !process.Child.RunResult {
const result = try process.Child.run(.{
.allocator = allocator,
.argv = args,
.env_map = env_map,
.cwd = cwd,
.max_output_bytes = max_doc_file_size,
});
switch (result.term) {
.Exited => |exit_code| {
if (exit_code != 0) {
std.debug.print("{s}\nThe following command exited with code {}:\n", .{ result.stderr, exit_code });
dumpArgs(args);
return error.ChildExitError;
}
},
else => {
std.debug.print("{s}\nThe following command crashed:\n", .{result.stderr});
dumpArgs(args);
return error.ChildCrashed;
},
}
return result;
}
fn printShell(out: anytype, shell_content: []const u8, escape: bool) !void {
const trimmed_shell_content = mem.trim(u8, shell_content, " \r\n");
try out.writeAll("<figure><figcaption class=\"shell-cap\">Shell</figcaption><pre><samp>");
var cmd_cont: bool = false;
var iter = std.mem.splitScalar(u8, trimmed_shell_content, '\n');
while (iter.next()) |orig_line| {
const line = mem.trimRight(u8, orig_line, " \r");
if (!cmd_cont and line.len > 1 and mem.eql(u8, line[0..2], "$ ") and line[line.len - 1] != '\\') {
try out.writeAll("$ <kbd>");
const s = std.mem.trimLeft(u8, line[1..], " ");
if (escape) {
try writeEscaped(out, s);
} else {
try out.writeAll(s);
}
try out.writeAll("</kbd>" ++ "\n");
} else if (!cmd_cont and line.len > 1 and mem.eql(u8, line[0..2], "$ ") and line[line.len - 1] == '\\') {
try out.writeAll("$ <kbd>");
const s = std.mem.trimLeft(u8, line[1..], " ");
if (escape) {
try writeEscaped(out, s);
} else {
try out.writeAll(s);
}
try out.writeAll("\n");
cmd_cont = true;
} else if (line.len > 0 and line[line.len - 1] != '\\' and cmd_cont) {
if (escape) {
try writeEscaped(out, line);
} else {
try out.writeAll(line);
}
try out.writeAll("</kbd>" ++ "\n");
cmd_cont = false;
} else {
if (escape) {
try writeEscaped(out, line);
} else {
try out.writeAll(line);
}
try out.writeAll("\n");
}
}
try out.writeAll("</samp></pre></figure>");
}
test "term supported colors" {
const test_allocator = testing.allocator;
{
const input = "A\x1b[31;1mred\x1b[0mB";
const expect = "A<span class=\"sgr-31_1m\">red</span>B";
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
const input = "A\x1b[32;1mgreen\x1b[0mB";
const expect = "A<span class=\"sgr-32_1m\">green</span>B";
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
const input = "A\x1b[36;1mcyan\x1b[0mB";
const expect = "A<span class=\"sgr-36_1m\">cyan</span>B";
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
const input = "A\x1b[1mbold\x1b[0mB";
const expect = "A<span class=\"sgr-1m\">bold</span>B";
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
const input = "A\x1b[2mdim\x1b[0mB";
const expect = "A<span class=\"sgr-2m\">dim</span>B";
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
}
test "term output from zig" {
// Use data generated by https://github.com/perillo/zig-tty-test-data,
// with zig version 0.11.0-dev.1898+36d47dd19.
const test_allocator = testing.allocator;
{
// 1.1-with-build-progress.out
const input = "Semantic Analysis [1324] \x1b[25D\x1b[0KLLVM Emit Object... \x1b[20D\x1b[0KLLVM Emit Object... \x1b[20D\x1b[0KLLD Link... \x1b[12D\x1b[0K";
const expect = "";
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
// 2.1-with-reference-traces.out
const input = "\x1b[1msrc/2.1-with-reference-traces.zig:3:7: \x1b[31;1merror: \x1b[0m\x1b[1mcannot assign to constant\n\x1b[0m x += 1;\n \x1b[32;1m~~^~~~\n\x1b[0m\x1b[0m\x1b[2mreferenced by:\n main: src/2.1-with-reference-traces.zig:7:5\n callMain: /usr/local/lib/zig/lib/std/start.zig:607:17\n remaining reference traces hidden; use '-freference-trace' to see all reference traces\n\n\x1b[0m";
const expect =
\\<span class="sgr-1m">src/2.1-with-reference-traces.zig:3:7: </span><span class="sgr-31_1m">error: </span><span class="sgr-1m">cannot assign to constant
\\</span> x += 1;
\\ <span class="sgr-32_1m">~~^~~~
\\</span><span class="sgr-2m">referenced by:
\\ main: src/2.1-with-reference-traces.zig:7:5
\\ callMain: /usr/local/lib/zig/lib/std/start.zig:607:17
\\ remaining reference traces hidden; use '-freference-trace' to see all reference traces
\\
\\</span>
;
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
// 2.2-without-reference-traces.out
const input = "\x1b[1m/usr/local/lib/zig/lib/std/io/fixed_buffer_stream.zig:128:29: \x1b[31;1merror: \x1b[0m\x1b[1minvalid type given to fixedBufferStream\n\x1b[0m else => @compileError(\"invalid type given to fixedBufferStream\"),\n \x1b[32;1m^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\x1b[0m\x1b[1m/usr/local/lib/zig/lib/std/io/fixed_buffer_stream.zig:116:66: \x1b[36;1mnote: \x1b[0m\x1b[1mcalled from here\n\x1b[0mpub fn fixedBufferStream(buffer: anytype) FixedBufferStream(Slice(@TypeOf(buffer))) {\n; \x1b[32;1m~~~~~^~~~~~~~~~~~~~~~~\n\x1b[0m";
const expect =
\\<span class="sgr-1m">/usr/local/lib/zig/lib/std/io/fixed_buffer_stream.zig:128:29: </span><span class="sgr-31_1m">error: </span><span class="sgr-1m">invalid type given to fixedBufferStream
\\</span> else => @compileError("invalid type given to fixedBufferStream"),
\\ <span class="sgr-32_1m">^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\\</span><span class="sgr-1m">/usr/local/lib/zig/lib/std/io/fixed_buffer_stream.zig:116:66: </span><span class="sgr-36_1m">note: </span><span class="sgr-1m">called from here
\\</span>pub fn fixedBufferStream(buffer: anytype) FixedBufferStream(Slice(@TypeOf(buffer))) {
\\; <span class="sgr-32_1m">~~~~~^~~~~~~~~~~~~~~~~
\\</span>
;
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
// 2.3-with-notes.out
const input = "\x1b[1msrc/2.3-with-notes.zig:6:9: \x1b[31;1merror: \x1b[0m\x1b[1mexpected type '*2.3-with-notes.Derp', found '*2.3-with-notes.Wat'\n\x1b[0m bar(w);\n \x1b[32;1m^\n\x1b[0m\x1b[1msrc/2.3-with-notes.zig:6:9: \x1b[36;1mnote: \x1b[0m\x1b[1mpointer type child '2.3-with-notes.Wat' cannot cast into pointer type child '2.3-with-notes.Derp'\n\x1b[0m\x1b[1msrc/2.3-with-notes.zig:2:13: \x1b[36;1mnote: \x1b[0m\x1b[1mopaque declared here\n\x1b[0mconst Wat = opaque {};\n \x1b[32;1m^~~~~~~~~\n\x1b[0m\x1b[1msrc/2.3-with-notes.zig:1:14: \x1b[36;1mnote: \x1b[0m\x1b[1mopaque declared here\n\x1b[0mconst Derp = opaque {};\n \x1b[32;1m^~~~~~~~~\n\x1b[0m\x1b[1msrc/2.3-with-notes.zig:4:18: \x1b[36;1mnote: \x1b[0m\x1b[1mparameter type declared here\n\x1b[0mextern fn bar(d: *Derp) void;\n \x1b[32;1m^~~~~\n\x1b[0m\x1b[0m\x1b[2mreferenced by:\n main: src/2.3-with-notes.zig:10:5\n callMain: /usr/local/lib/zig/lib/std/start.zig:607:17\n remaining reference traces hidden; use '-freference-trace' to see all reference traces\n\n\x1b[0m";
const expect =
\\<span class="sgr-1m">src/2.3-with-notes.zig:6:9: </span><span class="sgr-31_1m">error: </span><span class="sgr-1m">expected type '*2.3-with-notes.Derp', found '*2.3-with-notes.Wat'
\\</span> bar(w);
\\ <span class="sgr-32_1m">^
\\</span><span class="sgr-1m">src/2.3-with-notes.zig:6:9: </span><span class="sgr-36_1m">note: </span><span class="sgr-1m">pointer type child '2.3-with-notes.Wat' cannot cast into pointer type child '2.3-with-notes.Derp'
\\</span><span class="sgr-1m">src/2.3-with-notes.zig:2:13: </span><span class="sgr-36_1m">note: </span><span class="sgr-1m">opaque declared here
\\</span>const Wat = opaque {};
\\ <span class="sgr-32_1m">^~~~~~~~~
\\</span><span class="sgr-1m">src/2.3-with-notes.zig:1:14: </span><span class="sgr-36_1m">note: </span><span class="sgr-1m">opaque declared here
\\</span>const Derp = opaque {};
\\ <span class="sgr-32_1m">^~~~~~~~~
\\</span><span class="sgr-1m">src/2.3-with-notes.zig:4:18: </span><span class="sgr-36_1m">note: </span><span class="sgr-1m">parameter type declared here
\\</span>extern fn bar(d: *Derp) void;
\\ <span class="sgr-32_1m">^~~~~
\\</span><span class="sgr-2m">referenced by:
\\ main: src/2.3-with-notes.zig:10:5
\\ callMain: /usr/local/lib/zig/lib/std/start.zig:607:17
\\ remaining reference traces hidden; use '-freference-trace' to see all reference traces
\\
\\</span>
;
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
// 3.1-with-error-return-traces.out
const input = "error: Error\n\x1b[1m/home/zig/src/3.1-with-error-return-traces.zig:5:5\x1b[0m: \x1b[2m0x20b008 in callee (3.1-with-error-return-traces)\x1b[0m\n return error.Error;\n \x1b[32;1m^\x1b[0m\n\x1b[1m/home/zig/src/3.1-with-error-return-traces.zig:9:5\x1b[0m: \x1b[2m0x20b113 in caller (3.1-with-error-return-traces)\x1b[0m\n try callee();\n \x1b[32;1m^\x1b[0m\n\x1b[1m/home/zig/src/3.1-with-error-return-traces.zig:13:5\x1b[0m: \x1b[2m0x20b153 in main (3.1-with-error-return-traces)\x1b[0m\n try caller();\n \x1b[32;1m^\x1b[0m\n";
const expect =
\\error: Error
\\<span class="sgr-1m">/home/zig/src/3.1-with-error-return-traces.zig:5:5</span>: <span class="sgr-2m">0x20b008 in callee (3.1-with-error-return-traces)</span>
\\ return error.Error;
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/home/zig/src/3.1-with-error-return-traces.zig:9:5</span>: <span class="sgr-2m">0x20b113 in caller (3.1-with-error-return-traces)</span>
\\ try callee();
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/home/zig/src/3.1-with-error-return-traces.zig:13:5</span>: <span class="sgr-2m">0x20b153 in main (3.1-with-error-return-traces)</span>
\\ try caller();
\\ <span class="sgr-32_1m">^</span>
\\
;
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
{
// 3.2-with-stack-trace.out
const input = "\x1b[1m/usr/local/lib/zig/lib/std/debug.zig:561:19\x1b[0m: \x1b[2m0x22a107 in writeCurrentStackTrace__anon_5898 (3.2-with-stack-trace)\x1b[0m\n while (it.next()) |return_address| {\n \x1b[32;1m^\x1b[0m\n\x1b[1m/usr/local/lib/zig/lib/std/debug.zig:157:80\x1b[0m: \x1b[2m0x20bb23 in dumpCurrentStackTrace (3.2-with-stack-trace)\x1b[0m\n writeCurrentStackTrace(stderr, debug_info, detectTTYConfig(io.getStdErr()), start_addr) catch |err| {\n \x1b[32;1m^\x1b[0m\n\x1b[1m/home/zig/src/3.2-with-stack-trace.zig:5:36\x1b[0m: \x1b[2m0x20d3b2 in foo (3.2-with-stack-trace)\x1b[0m\n std.debug.dumpCurrentStackTrace(null);\n \x1b[32;1m^\x1b[0m\n\x1b[1m/home/zig/src/3.2-with-stack-trace.zig:9:8\x1b[0m: \x1b[2m0x20b458 in main (3.2-with-stack-trace)\x1b[0m\n foo();\n \x1b[32;1m^\x1b[0m\n\x1b[1m/usr/local/lib/zig/lib/std/start.zig:607:22\x1b[0m: \x1b[2m0x20a965 in posixCallMainAndExit (3.2-with-stack-trace)\x1b[0m\n root.main();\n \x1b[32;1m^\x1b[0m\n\x1b[1m/usr/local/lib/zig/lib/std/start.zig:376:5\x1b[0m: \x1b[2m0x20a411 in _start (3.2-with-stack-trace)\x1b[0m\n @call(.never_inline, posixCallMainAndExit, .{});\n \x1b[32;1m^\x1b[0m\n";
const expect =
\\<span class="sgr-1m">/usr/local/lib/zig/lib/std/debug.zig:561:19</span>: <span class="sgr-2m">0x22a107 in writeCurrentStackTrace__anon_5898 (3.2-with-stack-trace)</span>
\\ while (it.next()) |return_address| {
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/usr/local/lib/zig/lib/std/debug.zig:157:80</span>: <span class="sgr-2m">0x20bb23 in dumpCurrentStackTrace (3.2-with-stack-trace)</span>
\\ writeCurrentStackTrace(stderr, debug_info, detectTTYConfig(io.getStdErr()), start_addr) catch |err| {
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/home/zig/src/3.2-with-stack-trace.zig:5:36</span>: <span class="sgr-2m">0x20d3b2 in foo (3.2-with-stack-trace)</span>
\\ std.debug.dumpCurrentStackTrace(null);
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/home/zig/src/3.2-with-stack-trace.zig:9:8</span>: <span class="sgr-2m">0x20b458 in main (3.2-with-stack-trace)</span>
\\ foo();
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/usr/local/lib/zig/lib/std/start.zig:607:22</span>: <span class="sgr-2m">0x20a965 in posixCallMainAndExit (3.2-with-stack-trace)</span>
\\ root.main();
\\ <span class="sgr-32_1m">^</span>
\\<span class="sgr-1m">/usr/local/lib/zig/lib/std/start.zig:376:5</span>: <span class="sgr-2m">0x20a411 in _start (3.2-with-stack-trace)</span>
\\ @call(.never_inline, posixCallMainAndExit, .{});
\\ <span class="sgr-32_1m">^</span>
\\
;
const result = try termColor(test_allocator, input);
defer test_allocator.free(result);
try testing.expectEqualSlices(u8, expect, result);
}
}
test "printShell" {
const test_allocator = std.testing.allocator;
{
const shell_out =
\\$ zig build test.zig
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig
\\build output
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\build output
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out = "$ zig build test.zig\r\nbuild output\r\n";
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\build output
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig
\\build output
\\$ ./test
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\build output
\\$ <kbd>./test</kbd>
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig
\\
\\$ ./test
\\output
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\
\\$ <kbd>./test</kbd>
\\output
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig
\\$ ./test
\\output
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\$ <kbd>./test</kbd>
\\output
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig \
\\ --build-option
\\build output
\\$ ./test
\\output
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig \
\\ --build-option</kbd>
\\build output
\\$ <kbd>./test</kbd>
\\output
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
// intentional space after "--build-option1 \"
const shell_out =
\\$ zig build test.zig \
\\ --build-option1 \
\\ --build-option2
\\$ ./test
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig \
\\ --build-option1 \
\\ --build-option2</kbd>
\\$ <kbd>./test</kbd>
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig \
\\$ ./test
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig \
\\$ ./test</kbd>
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$ zig build test.zig
\\$ ./test
\\$1
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$ <kbd>zig build test.zig</kbd>
\\$ <kbd>./test</kbd>
\\$1
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
{
const shell_out =
\\$zig build test.zig
;
const expected =
\\<figure><figcaption class="shell-cap">Shell</figcaption><pre><samp>$zig build test.zig
\\</samp></pre></figure>
;
var buffer = std.ArrayList(u8).init(test_allocator);
defer buffer.deinit();
try printShell(buffer.writer(), shell_out, false);
try testing.expectEqualSlices(u8, expected, buffer.items);
}
}