add a Shell builtin, default fish, with per-family prompt integration

1 files changed, 11 insertions, 0 deletions

diff --git a/build.zig b/build.zig
index 4957adb4..feefecdc 100644
--- a/build.zig
+++ b/build.zig
@@ -821,6 +821,17 @@ pub fn build(b: *std.Build) void {
             .link_libc = true,
         }) });
         unit_step.dependOn(&b.addRunArtifact(temp_file_test).step);
+        // Resolving a shell binary and picking its prompt integration is the
+        // same shape: native-shell IO, no core imports, its own libc-linked
+        // module. (A test file the core merely re-exported would compile and
+        // silently never run — zig only collects tests from what it analyses.)
+        const shell_bin_test = b.addTest(.{ .root_module = b.createModule(.{
+            .target = target,
+            .optimize = optimize,
+            .root_source_file = b.path("src/shell_bin.zig"),
+            .link_libc = true,
+        }) });
+        unit_step.dependOn(&b.addRunArtifact(shell_bin_test).step);
         // crt.zig is pure std — the mouse-mapping-vs-shader-formula test
         const crt_test = b.addTest(.{ .root_module = b.createModule(.{
             .target = target,