99 lines
4.5 KiB
Zig
99 lines
4.5 KiB
Zig
const std = @import("std");
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// Although this function looks imperative, note that its job is to
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// declaratively construct a build graph that will be executed by an external
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// runner.
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pub fn build(b: *std.Build) void {
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// Standard target options allows 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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// 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 gobject = b.dependency("gobject", .{});
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const exe = b.addExecutable(.{
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.name = "zig-gst",
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.root_source_file = b.path("src/main.zig"),
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.target = target,
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.optimize = optimize,
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});
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// These environment vars are set with the `nix develop` command
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const gst_dev_path = b.graph.env_map.get("GST_DEV_PATH");
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const gst_plugins_base_path = b.graph.env_map.get("GST_PLUGINS_BASE_PATH"); // system libraries
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const gst_plugins_base_dev_path = b.graph.env_map.get("GST_PLUGINS_BASE_DEV_PATH"); // header files
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const glib_dev_path = b.graph.env_map.get("GLIB_DEV_PATH");
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const glib_path = b.graph.env_map.get("GLIB_PATH");
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if (gst_dev_path == null) {
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std.debug.panic("GST_DEV_PATH environment variable was not set. Has the nix flake been updated? This should point at the gstreamer.XXX-dev folder", .{});
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}
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if (gst_plugins_base_path == null) {
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std.debug.panic("GST_PLUGINS_PATH environment variable was not set. Has the nix flake been updated? This should point at the gst_all_1.gst-plugins-base folder", .{});
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}
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if (gst_plugins_base_dev_path == null) {
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std.debug.panic("GST_PLUGINS_DEV_PATH environment variable was not set. Has the nix flake been updated? This should point at the gst_all_1.gst-plugins-base.dev folder", .{});
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}
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if (glib_dev_path == null) {
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std.debug.panic("GLIB_DEV_PATH environment variable was not set. Has the nix flake been updated? This should point at the glib.XXX-dev folder", .{});
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}
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if (glib_path == null) {
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std.debug.panic("GLIB_PATH environment variable was not set. Has the nix flake been updated? This should point at the glib.XXX folder", .{});
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}
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exe.linkSystemLibrary("c");
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exe.linkSystemLibrary("gstreamer-1.0");
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exe.linkSystemLibrary("gstapp-1.0");
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exe.linkSystemLibrary("glib-2.0");
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exe.linkSystemLibrary("gobject-2.0");
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exe.root_module.addImport("glib", gobject.module("glib2"));
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exe.root_module.addImport("gobject", gobject.module("gobject2"));
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exe.root_module.addImport("gst", gobject.module("gst1"));
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exe.root_module.addImport("gstapp", gobject.module("gstapp1"));
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// exe.addIncludePath(.{ .cwd_relative = "/usr/include/hailo" });
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// exe.addLibraryPath(.{ .cwd_relative = "/home/nixolas/Documents/hailort/build/hailort/libhailort/src"});
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// exe.linkSystemLibrary("hailort");
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// This declares intent for the executable to be installed into the
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// standard location when the user invokes the "install" step (the default
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// step when running `zig build`).
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b.installArtifact(exe);
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// This *creates* a Run step in the build graph, to be executed when another
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// step is evaluated that depends on it. The next line below will establish
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// such a dependency.
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const run_cmd = b.addRunArtifact(exe);
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// By making the run step depend on the install 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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// This is not necessary, however, if the application depends on other installed
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// files, this ensures they will be present and in the expected location.
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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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run_cmd.addArgs(args);
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}
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// This creates a build step. It will be visible in the `zig build --help` menu,
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// and can be selected like this: `zig build run`
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// This will evaluate the `run` step rather than the default, which is "install".
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const run_step = b.step("run", "Run the app");
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run_step.dependOn(&run_cmd.step);
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}
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