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-rw-r--r--tools/go_stateify/defs.bzl60
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-"""Stateify is a tool for generating state wrappers for Go types."""
-
-def _go_stateify_impl(ctx):
- """Implementation for the stateify tool."""
- output = ctx.outputs.out
-
- # Run the stateify command.
- args = ["-output=%s" % output.path]
- args.append("-fullpkg=%s" % ctx.attr.package)
- if ctx.attr._statepkg:
- args.append("-statepkg=%s" % ctx.attr._statepkg)
- if ctx.attr.imports:
- args.append("-imports=%s" % ",".join(ctx.attr.imports))
- args.append("--")
- for src in ctx.attr.srcs:
- args += [f.path for f in src.files.to_list()]
- ctx.actions.run(
- inputs = ctx.files.srcs,
- outputs = [output],
- mnemonic = "GoStateify",
- progress_message = "Generating state library %s" % ctx.label,
- arguments = args,
- executable = ctx.executable._tool,
- )
-
-go_stateify = rule(
- implementation = _go_stateify_impl,
- doc = "Generates save and restore logic from a set of Go files.",
- attrs = {
- "srcs": attr.label_list(
- doc = """
-The input source files. These files should include all structs in the package
-that need to be saved.
-""",
- mandatory = True,
- allow_files = True,
- ),
- "imports": attr.string_list(
- doc = """
-An optional list of extra non-aliased, Go-style absolute import paths required
-for statified types.
-""",
- mandatory = False,
- ),
- "package": attr.string(
- doc = "The fully qualified package name for the input sources.",
- mandatory = True,
- ),
- "out": attr.output(
- doc = "Name of the generator output file.",
- mandatory = True,
- ),
- "_tool": attr.label(
- executable = True,
- cfg = "host",
- default = Label("//tools/go_stateify:stateify"),
- ),
- "_statepkg": attr.string(default = "gvisor.dev/gvisor/pkg/state"),
- },
-)