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build: improve coding style in ZiglingStep

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- Use an anonymous struct when initializing std.Build.Step.
  - Rename the builder parameter in the create method to b
  - Avoid lines too long

Additionally:
  - In the run method, rename output to raw_output in order to make the
    next variable names shorter.
  - In the compile method, rename zig_file to path.
pull/2/head
Manlio Perillo 1 year ago
parent 771b499cbc
commit a5d93c0b20
1 changed files with 45 additions and 26 deletions
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71
build.zig
Unescape Escape View File

@ -228,10 +228,15 @@ const ZiglingStep = struct {
result_messages: []const u8 = "",
result_error_bundle: std.zig.ErrorBundle = std.zig.ErrorBundle.empty,
pub fn create(builder: *Build, exercise: Exercise, work_path: []const u8) *ZiglingStep {
const self = builder.allocator.create(ZiglingStep) catch @panic("OOM");
pub fn create(b: *Build, exercise: Exercise, work_path: []const u8) *ZiglingStep {
const self = b.allocator.create(ZiglingStep) catch @panic("OOM");
self.* = .{
.step = Step.init(Step.Options{ .id = .custom, .name = exercise.main_file, .owner = builder, .makeFn = make }),
.step = Step.init(.{
.id = .custom,
.name = exercise.main_file,
.owner = b,
.makeFn = make,
}),
.exercise = exercise,
.work_path = work_path,
};
@ -249,7 +254,9 @@ const ZiglingStep = struct {
const exe_path = self.compile(prog_node) catch {
if (self.exercise.hint.len > 0) {
print("\n{s}HINT: {s}{s}", .{ bold_text, self.exercise.hint, reset_text });
print("\n{s}HINT: {s}{s}", .{
bold_text, self.exercise.hint, reset_text,
});
}
self.help();
@ -258,7 +265,9 @@ const ZiglingStep = struct {
self.run(exe_path, prog_node) catch {
if (self.exercise.hint.len > 0) {
print("\n{s}HINT: {s}{s}", .{ bold_text, self.exercise.hint, reset_text });
print("\n{s}HINT: {s}{s}", .{
bold_text, self.exercise.hint, reset_text,
});
}
self.help();
@ -288,7 +297,7 @@ const ZiglingStep = struct {
return err;
};
const output = if (self.exercise.check_stdout)
const raw_output = if (self.exercise.check_stdout)
result.stdout
else
result.stderr;
@ -297,20 +306,27 @@ const ZiglingStep = struct {
switch (result.term) {
.Exited => |code| {
if (code != 0) {
print("{s}{s} exited with error code {d} (expected {d}){s}\n", .{ red_text, self.exercise.main_file, code, 0, reset_text });
print("{s}{s} exited with error code {d} (expected {d}){s}\n", .{
red_text, self.exercise.main_file, code, 0, reset_text,
});
return error.BadExitCode;
}
},
else => {
print("{s}{s} terminated unexpectedly{s}\n", .{ red_text, self.exercise.main_file, reset_text });
print("{s}{s} terminated unexpectedly{s}\n", .{
red_text, self.exercise.main_file, reset_text,
});
return error.UnexpectedTermination;
},
}
// Validate the output.
const trimOutput = std.mem.trimRight(u8, output, " \r\n");
const trimExerciseOutput = std.mem.trimRight(u8, self.exercise.output, " \r\n");
if (!std.mem.eql(u8, trimOutput, trimExerciseOutput)) {
const output = std.mem.trimRight(u8, raw_output, " \r\n");
const exercise_output = std.mem.trimRight(u8, self.exercise.output, " \r\n");
if (!std.mem.eql(u8, output, exercise_output)) {
const red = red_text;
const reset = reset_text;
print(
\\
\\{s}========= expected this output: =========={s}
@ -319,17 +335,20 @@ const ZiglingStep = struct {
\\{s}
\\{s}=========================================={s}
\\
, .{ red_text, reset_text, trimExerciseOutput, red_text, reset_text, trimOutput, red_text, reset_text });
, .{ red, reset, exercise_output, red, reset, output, red, reset });
return error.InvalidOutput;
}
print("{s}PASSED:\n{s}{s}\n\n", .{ green_text, trimOutput, reset_text });
print("{s}PASSED:\n{s}{s}\n\n", .{ green_text, output, reset_text });
}
fn compile(self: *ZiglingStep, prog_node: *std.Progress.Node) ![]const u8 {
print("Compiling {s}...\n", .{self.exercise.main_file});
const b = self.step.owner;
const exercise_path = self.exercise.main_file;
const path = join(b.allocator, &.{ self.work_path, exercise_path }) catch
@panic("OOM");
var zig_args = std.ArrayList([]const u8).init(b.allocator);
defer zig_args.deinit();
@ -337,13 +356,12 @@ const ZiglingStep = struct {
zig_args.append(b.zig_exe) catch @panic("OOM");
zig_args.append("build-exe") catch @panic("OOM");
// Enable C support for exercises that use C functions
// Enable C support for exercises that use C functions.
if (self.exercise.link_libc) {
zig_args.append("-lc") catch @panic("OOM");
}
const zig_file = join(b.allocator, &.{ self.work_path, self.exercise.main_file }) catch @panic("OOM");
zig_args.append(b.pathFromRoot(zig_file)) catch @panic("OOM");
zig_args.append(b.pathFromRoot(path)) catch @panic("OOM");
zig_args.append("--cache-dir") catch @panic("OOM");
zig_args.append(b.pathFromRoot(b.cache_root.path.?)) catch @panic("OOM");
@ -357,35 +375,36 @@ const ZiglingStep = struct {
switch (err) {
error.FileNotFound => {
print("{s}{s}: Unable to spawn the following command: file not found{s}\n", .{ red_text, self.exercise.main_file, reset_text });
print("{s}{s}: Unable to spawn the following command: file not found{s}\n", .{
red_text, self.exercise.main_file, reset_text,
});
for (argv) |v| print("{s} ", .{v});
print("\n", .{});
},
error.ExitCodeFailure => {
print("{s}{s}: The following command exited with error code {}:{s}\n", .{ red_text, self.exercise.main_file, code, reset_text });
print("{s}{s}: The following command exited with error code {}:{s}\n", .{
red_text, self.exercise.main_file, code, reset_text,
});
for (argv) |v| print("{s} ", .{v});
print("\n", .{});
},
error.ProcessTerminated => {
print("{s}{s}: The following command terminated unexpectedly:{s}\n", .{ red_text, self.exercise.main_file, reset_text });
print("{s}{s}: The following command terminated unexpectedly:{s}\n", .{
red_text, self.exercise.main_file, reset_text,
});
for (argv) |v| print("{s} ", .{v});
print("\n", .{});
},
error.ZigIPCError => {
print("{s}{s}: The following command failed to communicate the compilation result:{s}\n", .{
red_text,
self.exercise.main_file,
reset_text,
red_text, self.exercise.main_file, reset_text,
});
for (argv) |v| print("{s} ", .{v});
print("\n", .{});
},
else => {
print("{s}{s}: Unexpected error: {s}{s}\n", .{
red_text,
self.exercise.main_file,
@errorName(err),
reset_text,
red_text, self.exercise.main_file, @errorName(err), reset_text,
});
for (argv) |v| print("{s} ", .{v});
print("\n", .{});

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