setup
This commit is contained in:
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.gitignore
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.gitignore
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zig-out/
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.zig-cache/
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119
build.zig
119
build.zig
@@ -1,156 +1,37 @@
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const std = @import("std");
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const std = @import("std");
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// Although this function looks imperative, it does not perform the build
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// directly and instead it mutates the build graph (`b`) that will be then
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// executed by an external runner. The functions in `std.Build` implement a DSL
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// for defining build steps and express dependencies between them, allowing the
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// build runner to parallelize the build automatically (and the cache system to
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// know when a step doesn't need to be re-run).
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pub fn build(b: *std.Build) void {
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pub fn build(b: *std.Build) void {
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// Standard target options allow the person running `zig build` to choose
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// what target to build for. Here we do not override the defaults, which
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// means any target is allowed, and the default is native. Other options
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// for restricting supported target set are available.
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const target = b.standardTargetOptions(.{});
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const target = b.standardTargetOptions(.{});
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// Standard optimization options allow the person running `zig build` to select
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// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
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// set a preferred release mode, allowing the user to decide how to optimize.
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const optimize = b.standardOptimizeOption(.{});
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const optimize = b.standardOptimizeOption(.{});
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// It's also possible to define more custom flags to toggle optional features
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// of this build script using `b.option()`. All defined flags (including
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// target and optimize options) will be listed when running `zig build --help`
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// in this directory.
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// This creates a module, which represents a collection of source files alongside
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// some compilation options, such as optimization mode and linked system libraries.
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// Zig modules are the preferred way of making Zig code available to consumers.
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// addModule defines a module that we intend to make available for importing
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// to our consumers. We must give it a name because a Zig package can expose
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// multiple modules and consumers will need to be able to specify which
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// module they want to access.
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const mod = b.addModule("websockets", .{
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// The root source file is the "entry point" of this module. Users of
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// this module will only be able to access public declarations contained
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// in this file, which means that if you have declarations that you
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// intend to expose to consumers that were defined in other files part
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// of this module, you will have to make sure to re-export them from
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// the root file.
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.root_source_file = b.path("src/root.zig"),
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// Later on we'll use this module as the root module of a test executable
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// which requires us to specify a target.
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.target = target,
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});
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// Here we define an executable. An executable needs to have a root module
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// which needs to expose a `main` function. While we could add a main function
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// to the module defined above, it's sometimes preferable to split business
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// logic and the CLI into two separate modules.
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//
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// If your goal is to create a Zig library for others to use, consider if
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// it might benefit from also exposing a CLI tool. A parser library for a
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// data serialization format could also bundle a CLI syntax checker, for example.
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//
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// If instead your goal is to create an executable, consider if users might
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// be interested in also being able to embed the core functionality of your
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// program in their own executable in order to avoid the overhead involved in
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// subprocessing your CLI tool.
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//
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// If neither case applies to you, feel free to delete the declaration you
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// don't need and to put everything under a single module.
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const exe = b.addExecutable(.{
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const exe = b.addExecutable(.{
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.name = "websockets",
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.name = "websockets",
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.root_module = b.createModule(.{
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.root_module = b.createModule(.{
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// b.createModule defines a new module just like b.addModule but,
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// unlike b.addModule, it does not expose the module to consumers of
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// this package, which is why in this case we don't have to give it a name.
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.root_source_file = b.path("src/main.zig"),
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.root_source_file = b.path("src/main.zig"),
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// Target and optimization levels must be explicitly wired in when
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// defining an executable or library (in the root module), and you
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// can also hardcode a specific target for an executable or library
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// definition if desireable (e.g. firmware for embedded devices).
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.target = target,
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.target = target,
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.optimize = optimize,
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.optimize = optimize,
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// List of modules available for import in source files part of the
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// root module.
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.imports = &.{
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// Here "websockets" is the name you will use in your source code to
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// import this module (e.g. `@import("websockets")`). The name is
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// repeated because you are allowed to rename your imports, which
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// can be extremely useful in case of collisions (which can happen
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// importing modules from different packages).
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.{ .name = "websockets", .module = mod },
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},
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}),
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}),
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});
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});
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// This declares intent for the executable to be installed into the
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// install prefix when running `zig build` (i.e. when executing the default
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// step). By default the install prefix is `zig-out/` but can be overridden
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// by passing `--prefix` or `-p`.
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b.installArtifact(exe);
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b.installArtifact(exe);
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// This creates a top level step. Top level steps have a name and can be
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// invoked by name when running `zig build` (e.g. `zig build run`).
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// This will evaluate the `run` step rather than the default step.
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// For a top level step to actually do something, it must depend on other
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// steps (e.g. a Run step, as we will see in a moment).
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const run_step = b.step("run", "Run the app");
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const run_step = b.step("run", "Run the app");
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// This creates a RunArtifact step in the build graph. A RunArtifact step
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// invokes an executable compiled by Zig. Steps will only be executed by the
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// runner if invoked directly by the user (in the case of top level steps)
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// or if another step depends on it, so it's up to you to define when and
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// how this Run step will be executed. In our case we want to run it when
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// the user runs `zig build run`, so we create a dependency link.
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const run_cmd = b.addRunArtifact(exe);
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const run_cmd = b.addRunArtifact(exe);
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run_step.dependOn(&run_cmd.step);
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run_step.dependOn(&run_cmd.step);
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// By making the run step depend on the default step, it will be run from the
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// installation directory rather than directly from within the cache directory.
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run_cmd.step.dependOn(b.getInstallStep());
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run_cmd.step.dependOn(b.getInstallStep());
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// This allows the user to pass arguments to the application in the build
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// command itself, like this: `zig build run -- arg1 arg2 etc`
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if (b.args) |args| {
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if (b.args) |args| {
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run_cmd.addArgs(args);
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run_cmd.addArgs(args);
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}
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}
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// Creates an executable that will run `test` blocks from the provided module.
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// Here `mod` needs to define a target, which is why earlier we made sure to
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// set the releative field.
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const mod_tests = b.addTest(.{
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.root_module = mod,
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});
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// A run step that will run the test executable.
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const run_mod_tests = b.addRunArtifact(mod_tests);
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// Creates an executable that will run `test` blocks from the executable's
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// root module. Note that test executables only test one module at a time,
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// hence why we have to create two separate ones.
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const exe_tests = b.addTest(.{
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const exe_tests = b.addTest(.{
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.root_module = exe.root_module,
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.root_module = exe.root_module,
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});
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});
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// A run step that will run the second test executable.
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const run_exe_tests = b.addRunArtifact(exe_tests);
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const run_exe_tests = b.addRunArtifact(exe_tests);
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// A top level step for running all tests. dependOn can be called multiple
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// times and since the two run steps do not depend on one another, this will
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// make the two of them run in parallel.
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const test_step = b.step("test", "Run tests");
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const test_step = b.step("test", "Run tests");
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test_step.dependOn(&run_mod_tests.step);
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test_step.dependOn(&run_exe_tests.step);
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test_step.dependOn(&run_exe_tests.step);
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// Just like flags, top level steps are also listed in the `--help` menu.
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//
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// The Zig build system is entirely implemented in userland, which means
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// that it cannot hook into private compiler APIs. All compilation work
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// orchestrated by the build system will result in other Zig compiler
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// subcommands being invoked with the right flags defined. You can observe
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// these invocations when one fails (or you pass a flag to increase
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// verbosity) to validate assumptions and diagnose problems.
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//
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// Lastly, the Zig build system is relatively simple and self-contained,
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// and reading its source code will allow you to master it.
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}
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}
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@@ -1,75 +1,10 @@
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.{
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.{
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// This is the default name used by packages depending on this one. For
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// example, when a user runs `zig fetch --save <url>`, this field is used
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// as the key in the `dependencies` table. Although the user can choose a
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// different name, most users will stick with this provided value.
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//
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// It is redundant to include "zig" in this name because it is already
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// within the Zig package namespace.
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.name = .websockets,
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.name = .websockets,
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// This is a [Semantic Version](https://semver.org/).
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// In a future version of Zig it will be used for package deduplication.
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.version = "0.0.0",
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.version = "0.0.0",
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// Together with name, this represents a globally unique package
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// identifier. This field is generated by the Zig toolchain when the
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.fingerprint = 0xa9f10aa30d7b02d1,
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// package is first created, and then *never changes*. This allows
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// unambiguous detection of one package being an updated version of
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// another.
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//
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// When forking a Zig project, this id should be regenerated (delete the
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// field and run `zig build`) if the upstream project is still maintained.
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// Otherwise, the fork is *hostile*, attempting to take control over the
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// original project's identity. Thus it is recommended to leave the comment
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// on the following line intact, so that it shows up in code reviews that
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// modify the field.
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.fingerprint = 0xa9f10aa30d7b02d1, // Changing this has security and trust implications.
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// Tracks the earliest Zig version that the package considers to be a
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// supported use case.
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.minimum_zig_version = "0.15.2",
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.minimum_zig_version = "0.15.2",
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// This field is optional.
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// Each dependency must either provide a `url` and `hash`, or a `path`.
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// `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
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// Once all dependencies are fetched, `zig build` no longer requires
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// internet connectivity.
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.dependencies = .{
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// See `zig fetch --save <url>` for a command-line interface for adding dependencies.
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//.example = .{
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// // When updating this field to a new URL, be sure to delete the corresponding
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// // `hash`, otherwise you are communicating that you expect to find the old hash at
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// // the new URL. If the contents of a URL change this will result in a hash mismatch
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// // which will prevent zig from using it.
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// .url = "https://example.com/foo.tar.gz",
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//
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// // This is computed from the file contents of the directory of files that is
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// // obtained after fetching `url` and applying the inclusion rules given by
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// // `paths`.
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// //
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// // This field is the source of truth; packages do not come from a `url`; they
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// // come from a `hash`. `url` is just one of many possible mirrors for how to
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// // obtain a package matching this `hash`.
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// //
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// // Uses the [multihash](https://multiformats.io/multihash/) format.
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// .hash = "...",
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//
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// // When this is provided, the package is found in a directory relative to the
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// // build root. In this case the package's hash is irrelevant and therefore not
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// // computed. This field and `url` are mutually exclusive.
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// .path = "foo",
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//
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// // When this is set to `true`, a package is declared to be lazily
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// // fetched. This makes the dependency only get fetched if it is
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// // actually used.
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// .lazy = false,
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//},
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},
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// Specifies the set of files and directories that are included in this package.
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// Only files and directories listed here are included in the `hash` that
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// is computed for this package. Only files listed here will remain on disk
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// when using the zig package manager. As a rule of thumb, one should list
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// files required for compilation plus any license(s).
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// Paths are relative to the build root. Use the empty string (`""`) to refer to
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// the build root itself.
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// A directory listed here means that all files within, recursively, are included.
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.paths = .{
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.paths = .{
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"build.zig",
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"build.zig",
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"build.zig.zon",
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"build.zig.zon",
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@@ -1,10 +1,7 @@
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const std = @import("std");
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const std = @import("std");
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const websockets = @import("websockets");
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pub fn main() !void {
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pub fn main() !void {
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// Prints to stderr, ignoring potential errors.
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std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
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std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
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try websockets.bufferedPrint();
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}
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}
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test "simple test" {
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test "simple test" {
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23
src/root.zig
23
src/root.zig
@@ -1,23 +0,0 @@
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//! By convention, root.zig is the root source file when making a library.
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const std = @import("std");
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pub fn bufferedPrint() !void {
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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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var stdout_buffer: [1024]u8 = undefined;
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var stdout_writer = std.fs.File.stdout().writer(&stdout_buffer);
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const stdout = &stdout_writer.interface;
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try stdout.print("Run `zig build test` to run the tests.\n", .{});
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try stdout.flush(); // Don't forget to flush!
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}
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pub fn add(a: i32, b: i32) i32 {
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return a + b;
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}
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test "basic add functionality" {
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try std.testing.expect(add(3, 7) == 10);
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}
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Reference in New Issue
Block a user