do-dyn

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git clone git://code.mfashby.net:/do-dyn
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build.zig (3853B)


      1 const std = @import("std");
      2 
      3 // Although this function looks imperative, note that its job is to
      4 // declaratively construct a build graph that will be executed by an external
      5 // runner.
      6 pub fn build(b: *std.Build) void {
      7     // Standard target options allows the person running `zig build` to choose
      8     // what target to build for. Here we do not override the defaults, which
      9     // means any target is allowed, and the default is native. Other options
     10     // for restricting supported target set are available.
     11     const target = b.standardTargetOptions(.{});
     12 
     13     // Standard optimization options allow the person running `zig build` to select
     14     // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
     15     // set a preferred release mode, allowing the user to decide how to optimize.
     16     const optimize = b.standardOptimizeOption(.{});
     17 
     18     const lib = b.addStaticLibrary(.{
     19         .name = "do-dyn",
     20         // In this case the main source file is merely a path, however, in more
     21         // complicated build scripts, this could be a generated file.
     22         .root_source_file = .{ .path = "src/root.zig" },
     23         .target = target,
     24         .optimize = optimize,
     25     });
     26 
     27     // This declares intent for the library to be installed into the standard
     28     // location when the user invokes the "install" step (the default step when
     29     // running `zig build`).
     30     b.installArtifact(lib);
     31 
     32     const exe = b.addExecutable(.{
     33         .name = "do-dyn",
     34         .root_source_file = .{ .path = "src/main.zig" },
     35         .target = target,
     36         .optimize = optimize,
     37     });
     38 
     39     // This declares intent for the executable to be installed into the
     40     // standard location when the user invokes the "install" step (the default
     41     // step when running `zig build`).
     42     b.installArtifact(exe);
     43 
     44     // This *creates* a Run step in the build graph, to be executed when another
     45     // step is evaluated that depends on it. The next line below will establish
     46     // such a dependency.
     47     const run_cmd = b.addRunArtifact(exe);
     48 
     49     // By making the run step depend on the install step, it will be run from the
     50     // installation directory rather than directly from within the cache directory.
     51     // This is not necessary, however, if the application depends on other installed
     52     // files, this ensures they will be present and in the expected location.
     53     run_cmd.step.dependOn(b.getInstallStep());
     54 
     55     // This allows the user to pass arguments to the application in the build
     56     // command itself, like this: `zig build run -- arg1 arg2 etc`
     57     if (b.args) |args| {
     58         run_cmd.addArgs(args);
     59     }
     60 
     61     // This creates a build step. It will be visible in the `zig build --help` menu,
     62     // and can be selected like this: `zig build run`
     63     // This will evaluate the `run` step rather than the default, which is "install".
     64     const run_step = b.step("run", "Run the app");
     65     run_step.dependOn(&run_cmd.step);
     66 
     67     // Creates a step for unit testing. This only builds the test executable
     68     // but does not run it.
     69     const lib_unit_tests = b.addTest(.{
     70         .root_source_file = .{ .path = "src/root.zig" },
     71         .target = target,
     72         .optimize = optimize,
     73     });
     74 
     75     const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);
     76 
     77     const exe_unit_tests = b.addTest(.{
     78         .root_source_file = .{ .path = "src/main.zig" },
     79         .target = target,
     80         .optimize = optimize,
     81     });
     82 
     83     const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
     84 
     85     // Similar to creating the run step earlier, this exposes a `test` step to
     86     // the `zig build --help` menu, providing a way for the user to request
     87     // running the unit tests.
     88     const test_step = b.step("test", "Run unit tests");
     89     test_step.dependOn(&run_lib_unit_tests.step);
     90     test_step.dependOn(&run_exe_unit_tests.step);
     91 }