Bazel build

4 files changed, 109 insertions, 0 deletions

diff --git a/tools/BUILD.bazel b/tools/BUILD.bazel
new file mode 100644
index 0000000..fddb974
--- /dev/null
+++ b/tools/BUILD.bazel
@@ -0,0 +1,6 @@
+package(default_visibility = ["//visibility:public"])
+
+py_binary(
+    name = "make_iso",
+    srcs = ["make_iso.py"],
+)
diff --git a/tools/configure_file.bzl b/tools/configure_file.bzl
new file mode 100644
index 0000000..8fdd75c
--- /dev/null
+++ b/tools/configure_file.bzl
@@ -0,0 +1,29 @@
+load("//:project_config.bzl", "version")
+load("@rules_cc//cc:find_cc_toolchain.bzl", "find_cc_toolchain", "use_cc_toolchain")
+
+def configure_file(**kwargs):
+    _configure_file(
+        source_file = "{name}.h".format(**kwargs),
+        **kwargs
+    )
+
+def _configure_file_impl(ctx):
+    cc_toolchain = find_cc_toolchain(ctx)
+
+    ctx.actions.expand_template(
+        template = ctx.file.template,
+        output = ctx.outputs.source_file,
+        substitutions = {
+            "{VERSION}": '"{}"'.format(version()),
+            "{CC}": '"{} " __VERSION__'.format(cc_toolchain.compiler),
+        },
+    )
+
+_configure_file = rule(
+    attrs = {
+        "template": attr.label(allow_single_file = True),
+        "source_file": attr.output(mandatory = True),
+    },
+    toolchains = use_cc_toolchain(),
+    implementation = _configure_file_impl,
+)
diff --git a/tools/make_iso.bzl b/tools/make_iso.bzl
new file mode 100644
index 0000000..5ff20f5
--- /dev/null
+++ b/tools/make_iso.bzl
@@ -0,0 +1,41 @@
+def make_iso(**kwargs):
+    _make_iso(
+        image = "{name}.iso".format(**kwargs),
+        **kwargs
+    )
+
+def _make_iso_impl(ctx):
+    inputs = []
+    outputs = []
+    args = ctx.actions.args()
+
+    args.add("-c", ctx.file.bootloader.path)
+    inputs.append(ctx.file.bootloader)
+    args.add("-k", ctx.file.kernel.path)
+    inputs.append(ctx.file.kernel)
+
+    args.add("-o", ctx.outputs.image.path)
+    outputs.append(ctx.outputs.image)
+
+    ctx.actions.run(
+        inputs = inputs,
+        outputs = outputs,
+        arguments = [args],
+        executable = ctx.executable._generator,
+        progress_message = "Generating ISO image %s" % ctx.label.name,
+    )
+
+_make_iso = rule(
+    attrs = {
+        "bootloader": attr.label(allow_single_file = True),
+        "kernel": attr.label(allow_single_file = True),
+        "image": attr.output(),
+        "_generator": attr.label(
+            default = Label(":make_iso"),
+            executable = True,
+            allow_files = True,
+            cfg = "exec",
+        ),
+    },
+    implementation = _make_iso_impl,
+)
diff --git a/tools/qemu.bzl b/tools/qemu.bzl
new file mode 100644
index 0000000..9493306
--- /dev/null
+++ b/tools/qemu.bzl
@@ -0,0 +1,33 @@
+load("//toolchains:i386_qemu.bzl", qemu_i386 = "qemu_wrapper")
+
+def qemu(**kwargs):
+    _qemu(
+        wrapper_content = select({
+            "@platforms//cpu:i386": qemu_i386(),
+            "//conditions:default": "/bin/false",
+        }),
+        **kwargs
+    )
+
+def _qemu_impl(ctx):
+    print(ctx)
+    print(ctx.attr)
+
+    wrapper = ctx.actions.declare_file("%s_wrapper" % ctx.label.name)
+    wrapper_content = ctx.attr.wrapper_content.format(
+        cdrom = ctx.file.cdrom.basename,
+    )
+    ctx.actions.write(wrapper, wrapper_content, is_executable = True)
+
+    runfiles = ctx.runfiles(files = [ctx.file.cdrom])
+
+    return [DefaultInfo(executable = wrapper, runfiles = runfiles)]
+
+_qemu = rule(
+    implementation = _qemu_impl,
+    attrs = {
+        "cdrom": attr.label(allow_single_file = True),
+        "wrapper_content": attr.string(),
+    },
+    executable = True,
+)