zig

commit 431092fa612ca193cff56fd3430ac037ff70102b (tree)
parent 1f43e049d0d46c14ce5d598f1b6587d2c043b82c
Author: Mason Remaley <mason@gamesbymason.com>
Date:   Tue,  9 Jun 2026 15:33:35 -0700

Adds a compile step option to toggle incremental compilation

Diffstat:
M
lib/compiler/Maker/Step/Compile.zig
 | 
2
+-
M
lib/compiler/configurer.zig
 | 
1
+
M
lib/std/Build/Configuration.zig
 | 
3
++-
M
lib/std/Build/Step/Compile.zig
 | 
6
++++++

4 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/lib/compiler/Maker/Step/Compile.zig b/lib/compiler/Maker/Step/Compile.zig
@@ -861,7 +861,7 @@ fn lowerZigArgs(
         "--error-limit", try allocPrint(arena, "{d}", .{err_limit}),
     };
 
-    try addFlag(gpa, zig_args, "incremental", graph.incremental);
+    try addFlag(gpa, zig_args, "incremental", conf_comp.flags4.incremental.toBool() orelse graph.incremental);
 
     try zig_args.append(gpa, "--listen=-");
 
diff --git a/lib/compiler/configurer.zig b/lib/compiler/configurer.zig
@@ -797,6 +797,7 @@ fn serialize(b: *std.Build, wc: *Configuration.Wip, writer: *Io.Writer) !void {
                                 .generated_llvm_bc = c.generated_llvm_bc != .none,
                                 .generated_llvm_ir = c.generated_llvm_ir != .none,
                                 .generated_h = c.generated_h != .none,
+                                .incremental = .init(c.incremental),
                             },
                             .root_module = try s.addModule(c.root_module),
                             .root_name = try wc.addString(c.name),
diff --git a/lib/std/Build/Configuration.zig b/lib/std/Build/Configuration.zig
@@ -1016,7 +1016,8 @@ pub const Step = extern struct {
             generated_llvm_bc: bool,
             generated_llvm_ir: bool,
             generated_h: bool,
-            _: u9 = 0,
+            incremental: DefaultingBool,
+            _: u7 = 0,
         };
 
         pub fn isDynamicLibrary(compile: *const Compile) bool {
diff --git a/lib/std/Build/Step/Compile.zig b/lib/std/Build/Step/Compile.zig
@@ -234,6 +234,12 @@ is_linking_libcpp: bool = false,
 /// builtin fuzzer, see the `fuzz` flag in `Module`.
 sanitize_coverage_trace_pc_guard: ?bool = null,
 
+/// Enable or disable incremental compilation.
+///
+/// Incremental compilation reduces compile time by mutating an existing build artifact. Non-
+/// incremental compilation is slower but preserves previous build artifacts.
+incremental: ?bool = null,
+
 emit_directory: Configuration.OptionalGeneratedFileIndex = .none,
 generated_docs: Configuration.OptionalGeneratedFileIndex = .none,
 generated_asm: Configuration.OptionalGeneratedFileIndex = .none,