1
load("@bazel_skylib//lib:paths.bzl", "paths")
2
 
3
def _impl(ctx):
4
    in_file = ctx.file.src
5
    out_file = ctx.actions.declare_file(paths.replace_extension(in_file.basename, ".wasm"))
6
    ctx.actions.run_shell(
7
        tools = [ctx.executable._wasm_tools],
8
        inputs = [in_file],
9
        outputs = [out_file],
10
        arguments = [
11
            ctx.executable._wasm_tools.path,
12
            in_file.path,
13
            out_file.path,
14
        ],
15
        progress_message = "Running wasm-tools parse on %s" % in_file.short_path,
16
        command = "$1 parse $2 -o $3",
17
    )
18
 
19
    return [DefaultInfo(files = depset([out_file]))]
20
 
21
wasm_tools_parse = rule(
22
    implementation = _impl,
23
    attrs = {
24
        "src": attr.label(mandatory = True, allow_single_file = True),
25
        "_wasm_tools": attr.label(
26
            executable = True,
27
            allow_files = True,
28
            cfg = "exec",
29
            default = Label("//tools:wasm-tools"),
30
        ),
31
    },
32
)