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const std = @import("std");
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const test_step = b.step("test", "Test it");
b.default_step = test_step;
const touch_src = b.path("touch.zig");
const touch = b.addExecutable(.{
.name = "touch",
.root_module = b.createModule(.{
.root_source_file = touch_src,
.optimize = .Debug,
.target = target,
}),
});
const generated = b.addRunArtifact(touch).addOutputFileArg("subdir" ++ std.fs.path.sep_str ++ "generated.txt");
const exists_in = b.addExecutable(.{
.name = "exists_in",
.root_module = b.createModule(.{
.root_source_file = b.path("exists_in.zig"),
.optimize = .Debug,
.target = target,
}),
});
const has_basename = b.addExecutable(.{
.name = "has_basename",
.root_module = b.createModule(.{
.root_source_file = b.path("has_basename.zig"),
.optimize = .Debug,
.target = target,
}),
});
// Known path:
addTestRun(test_step, exists_in, touch_src.dirname(), &.{"touch.zig"});
// Generated file:
addTestRun(test_step, exists_in, generated.dirname(), &.{"generated.txt"});
// Generated file multiple levels:
addTestRun(test_step, exists_in, generated.dirname().dirname(), &.{
"subdir" ++ std.fs.path.sep_str ++ "generated.txt",
});
// Cache root:
const cache_dir = b.cache_root.path orelse
(b.cache_root.join(b.allocator, &.{"."}) catch @panic("OOM"));
addTestRun(
test_step,
has_basename,
generated.dirname().dirname().dirname().dirname(),
&.{std.fs.path.basename(cache_dir)},
);
// Absolute path:
const abs_path = setup_abspath: {
const temp_dir = b.makeTempPath();
var dir = std.fs.cwd().openDir(temp_dir, .{}) catch @panic("failed to open temp dir");
defer dir.close();
var file = dir.createFile("foo.txt", .{}) catch @panic("failed to create file");
file.close();
break :setup_abspath std.Build.LazyPath{ .cwd_relative = temp_dir };
};
addTestRun(test_step, exists_in, abs_path, &.{"foo.txt"});
}
// Runs exe with the parameters [dirname, args...].
// Expects the exit code to be 0.
fn addTestRun(
test_step: *std.Build.Step,
exe: *std.Build.Step.Compile,
dirname: std.Build.LazyPath,
args: []const []const u8,
) void {
const run = test_step.owner.addRunArtifact(exe);
run.addDirectoryArg(dirname);
run.addArgs(args);
run.expectExitCode(0);
test_step.dependOn(&run.step);
}
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