update zig nightly api changes

Author: jinzhongjia

build.zig

@@ -24,30 +24,14 @@ comptime {
 }
 
 pub fn build(b: *std.Build) void {
-    const isStatic = b.option(bool, "is_static", "whether lib is static") orelse default_isStatic;
-    const enableTLS = b.option(bool, "enable_tls", "whether lib enable tls") orelse default_enableTLS;
-    const target = b.standardTargetOptions(.{});
-    const optimize = b.standardOptimizeOption(.{});
-
-    if (enableTLS) {
-        std.log.info("enable TLS support", .{});
-        if (!target.isNative()) {
-            std.log.info("when enable tls, not support cross compile", .{});
-            std.os.exit(1);
-        }
+    if (current_zig.minor == 11) {
+        build_11(b);
+    } else if (current_zig.minor == 12) {
+        build_12(b);
     }
-
-    const webui = build_webui(b, optimize, target, isStatic, enableTLS);
-    // webui.linkLibrary(build_civetweb(b, optimize, target, isStatic, enableTLS));
-
-    webui.installHeader("include/webui.h", "webui.h");
-
-    build_examples(b, optimize, target, webui);
-
-    b.installArtifact(webui);
 }
 
-fn build_examples(b: *Build, optimize: OptimizeMode, target: CrossTarget, webui_lib: *Compile) void {
+fn build_examples_12(b: *Build, optimize: OptimizeMode, target: Build.ResolvedTarget, webui_lib: *Compile) void {
     var lazy_path = Build.LazyPath{
         .path = "examples/C",
     };
@@ -139,7 +123,139 @@ fn build_examples(b: *Build, optimize: OptimizeMode, target: CrossTarget, webui_
     }
 }
 
-fn build_webui(b: *Build, optimize: OptimizeMode, target: CrossTarget, is_static: bool, enable_tls: bool) *Compile {
+fn build_examples_11(b: *Build, optimize: OptimizeMode, target: CrossTarget, webui_lib: *Compile) void {
+    var lazy_path = Build.LazyPath{
+        .path = "examples/C",
+    };
+
+    const build_all_step = b.step("build_all", "build all examples");
+
+    const examples_path = lazy_path.getPath(b);
+
+    var iter_dir =
+        std.fs.openIterableDirAbsolute(examples_path, .{}) catch |err| {
+        log.err("open examples_path failed, err is {}", .{err});
+        std.os.exit(1);
+    };
+    defer iter_dir.close();
+
+    var itera = iter_dir.iterate();
+
+    while (itera.next()) |val| {
+        if (val) |entry| {
+            if (entry.kind == .directory) {
+                const example_name = entry.name;
+                const path = std.fmt.allocPrint(b.allocator, "examples/C/{s}/main.c", .{example_name}) catch |err| {
+                    log.err("fmt path for examples failed, err is {}", .{err});
+                    std.os.exit(1);
+                };
+
+                const exe = b.addExecutable(.{
+                    .name = example_name,
+                    .target = target,
+                    .optimize = optimize,
+                });
+
+                exe.addCSourceFile(.{
+                    .file = .{
+                        .path = path,
+                    },
+                    .flags = &.{},
+                });
+
+                exe.linkLibrary(webui_lib);
+
+                const exe_install = b.addInstallArtifact(exe, .{});
+
+                build_all_step.dependOn(&exe_install.step);
+
+                const exe_run = b.addRunArtifact(exe);
+                exe_run.step.dependOn(&exe_install.step);
+
+                if (comptime (current_zig.minor > 11)) {
+                    const cwd = std.fmt.allocPrint(b.allocator, "examples/C/{s}", .{example_name}) catch |err| {
+                        log.err("fmt path for examples failed, err is {}", .{err});
+                        std.os.exit(1);
+                    };
+                    exe_run.setCwd(.{
+                        .path = cwd,
+                    });
+                } else {
+                    const cwd = std.fmt.allocPrint(b.allocator, "{s}/{s}", .{ examples_path, example_name }) catch |err| {
+                        log.err("fmt path for examples failed, err is {}", .{err});
+                        std.os.exit(1);
+                    };
+                    exe_run.cwd = cwd;
+                }
+
+                const step_name = std.fmt.allocPrint(b.allocator, "run_{s}", .{example_name}) catch |err| {
+                    log.err("fmt step_name for examples failed, err is {}", .{err});
+                    std.os.exit(1);
+                };
+
+                const step_desc = std.fmt.allocPrint(b.allocator, "run example {s}", .{example_name}) catch |err| {
+                    log.err("fmt step_desc for examples failed, err is {}", .{err});
+                    std.os.exit(1);
+                };
+
+                const exe_run_step = b.step(step_name, step_desc);
+                exe_run_step.dependOn(&exe_run.step);
+            }
+        } else {
+            break;
+        }
+    } else |err| {
+        log.err("iterate examples_path failed, err is {}", .{err});
+        std.os.exit(1);
+    }
+}
+
+fn build_webui_12(b: *Build, optimize: OptimizeMode, target: Build.ResolvedTarget, is_static: bool, enable_tls: bool) *Compile {
+    const name = "webui";
+    const webui = if (is_static) b.addStaticLibrary(.{ .name = name, .target = target, .optimize = optimize }) else b.addSharedLibrary(.{ .name = name, .target = target, .optimize = optimize });
+
+    const extra_flags = if (target.query.os_tag == .windows or (target.query.os_tag == null and builtin.os.tag == .windows))
+        "-DMUST_IMPLEMENT_CLOCK_GETTIME"
+    else
+        "";
+
+    const cflags = if (enable_tls)
+        [_][]const u8{ "-DNDEBUG", "-DNO_CACHING", "-DNO_CGI", "-DUSE_WEBSOCKET", "-DWEBUI_TLS", "-DNO_SSL_DL", "-DOPENSSL_API_1_1", extra_flags }
+    else
+        [_][]const u8{ "-DNDEBUG", "-DNO_CACHING", "-DNO_CGI", "-DUSE_WEBSOCKET", "-DNO_SSL", extra_flags, "", "" };
+
+    webui.addCSourceFile(.{
+        .file = .{ .path = "src/webui.c" },
+        .flags = if (enable_tls)
+            &[_][]const u8{ "-DNO_SSL", "-DWEBUI_TLS", "-DNO_SSL_DL", "-DOPENSSL_API_1_1" }
+        else
+            &[_][]const u8{"-DNO_SSL"},
+    });
+
+    webui.addCSourceFile(.{
+        .file = .{ .path = "src/civetweb/civetweb.c" },
+        .flags = &cflags,
+    });
+
+    webui.linkLibC();
+
+    webui.addIncludePath(.{ .path = "include" });
+
+    if (target.query.os_tag == .windows or (target.query.os_tag == null and builtin.os.tag == .windows)) {
+        webui.linkSystemLibrary("ws2_32");
+        if (enable_tls) {
+            webui.linkSystemLibrary("bcrypt");
+        }
+    }
+    if (enable_tls) {
+        webui.linkSystemLibrary("ssl");
+        webui.linkSystemLibrary("crypto");
+    }
+
+    return webui;
+}
+
+fn build_webui_11(b: *Build, optimize: OptimizeMode, target: CrossTarget, is_static: bool, enable_tls: bool) *Compile {
     const name = "webui";
     const webui = if (is_static) b.addStaticLibrary(.{ .name = name, .target = target, .optimize = optimize }) else b.addSharedLibrary(.{ .name = name, .target = target, .optimize = optimize });
 
@@ -183,3 +299,49 @@ fn build_webui(b: *Build, optimize: OptimizeMode, target: CrossTarget, is_static
 
     return webui;
 }
+
+fn build_11(b: *Build) void {
+    const isStatic = b.option(bool, "is_static", "whether lib is static") orelse default_isStatic;
+    const enableTLS = b.option(bool, "enable_tls", "whether lib enable tls") orelse default_enableTLS;
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    if (enableTLS) {
+        std.log.info("enable TLS support", .{});
+        if (!target.isNative()) {
+            std.log.info("when enable tls, not support cross compile", .{});
+            std.os.exit(1);
+        }
+    }
+
+    const webui = build_webui_11(b, optimize, target, isStatic, enableTLS);
+
+    webui.installHeader("include/webui.h", "webui.h");
+
+    build_examples_11(b, optimize, target, webui);
+
+    b.installArtifact(webui);
+}
+
+fn build_12(b: *Build) void {
+    const isStatic = b.option(bool, "is_static", "whether lib is static") orelse default_isStatic;
+    const enableTLS = b.option(bool, "enable_tls", "whether lib enable tls") orelse default_enableTLS;
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    if (enableTLS) {
+        std.log.info("enable TLS support", .{});
+        if (!target.query.isNative()) {
+            std.log.info("when enable tls, not support cross compile", .{});
+            std.os.exit(1);
+        }
+    }
+
+    const webui = build_webui_12(b, optimize, target, isStatic, enableTLS);
+
+    webui.installHeader("include/webui.h", "webui.h");
+
+    build_examples_12(b, optimize, target, webui);
+
+    b.installArtifact(webui);
+}