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-"""Image configuration.
-
-Images can be generated by using the vm_image rule. For example,
-
- vm_image(
- name = "ubuntu",
- project = "...",
- family = "...",
- scripts = [
- "script.sh",
- "other.sh",
- ],
- )
-
-This will always create an vm_image in the current default gcloud project. The
-rule has a text file as its output containing the image name. This will enforce
-serialization for all dependent rules.
-
-Images are always named per the hash of all the hermetic input scripts. This
-allows images to be memoized quickly and easily.
-
-The vm_test rule can be used to execute a command remotely. For example,
-
- vm_test(
- name = "mycommand",
- image = ":myimage",
- targets = [":test"],
- )
-"""
-
-load("//tools:defs.bzl", "default_installer")
-
-def _vm_image_impl(ctx):
- script_paths = []
- for script in ctx.files.scripts:
- script_paths.append(script.short_path)
-
- resolved_inputs, argv, runfiles_manifests = ctx.resolve_command(
- command = "USERNAME=%s ZONE=$(cat %s) IMAGE_PROJECT=%s IMAGE_FAMILY=%s %s %s > %s" %
- (
- ctx.attr.username,
- ctx.files.zone[0].path,
- ctx.attr.project,
- ctx.attr.family,
- ctx.executable.builder.path,
- " ".join(script_paths),
- ctx.outputs.out.path,
- ),
- tools = [ctx.attr.builder] + ctx.attr.scripts,
- )
-
- ctx.actions.run_shell(
- tools = resolved_inputs,
- outputs = [ctx.outputs.out],
- progress_message = "Building image...",
- execution_requirements = {"local": "true"},
- command = argv,
- input_manifests = runfiles_manifests,
- )
- return [DefaultInfo(files = depset([ctx.outputs.out]))]
-
-_vm_image = rule(
- attrs = {
- "builder": attr.label(
- executable = True,
- default = "//tools/images:builder",
- cfg = "host",
- ),
- "username": attr.string(default = "$(whoami)"),
- "zone": attr.label(
- default = "//tools/images:zone",
- cfg = "host",
- ),
- "family": attr.string(mandatory = True),
- "project": attr.string(mandatory = True),
- "scripts": attr.label_list(allow_files = True),
- },
- outputs = {
- "out": "%{name}.txt",
- },
- implementation = _vm_image_impl,
-)
-
-def vm_image(**kwargs):
- _vm_image(
- tags = [
- "local",
- "manual",
- ],
- **kwargs
- )
-
-def _vm_test_impl(ctx):
- runner = ctx.actions.declare_file("%s-executer" % ctx.label.name)
-
- # Note that the remote execution case must actually generate an
- # intermediate target in order to collect all the relevant runfiles so that
- # they can be copied over for remote execution.
- runner_content = "\n".join([
- "#!/bin/bash",
- "export ZONE=$(cat %s)" % ctx.files.zone[0].short_path,
- "export USERNAME=%s" % ctx.attr.username,
- "export IMAGE=$(cat %s)" % ctx.files.image[0].short_path,
- "export SUDO=%s" % "true" if ctx.attr.sudo else "false",
- "%s %s" % (
- ctx.executable.executer.short_path,
- " ".join([
- target.files_to_run.executable.short_path
- for target in ctx.attr.targets
- ]),
- ),
- "",
- ])
- ctx.actions.write(runner, runner_content, is_executable = True)
-
- # Return with all transitive files.
- runfiles = ctx.runfiles(
- transitive_files = depset(transitive = [
- depset(target.data_runfiles.files)
- for target in ctx.attr.targets
- if hasattr(target, "data_runfiles")
- ]),
- files = ctx.files.executer + ctx.files.zone + ctx.files.image +
- ctx.files.targets,
- collect_default = True,
- collect_data = True,
- )
- return [DefaultInfo(executable = runner, runfiles = runfiles)]
-
-_vm_test = rule(
- attrs = {
- "image": attr.label(
- mandatory = True,
- cfg = "host",
- ),
- "executer": attr.label(
- executable = True,
- default = "//tools/images:executer",
- cfg = "host",
- ),
- "username": attr.string(default = "$(whoami)"),
- "zone": attr.label(
- default = "//tools/images:zone",
- cfg = "host",
- ),
- "sudo": attr.bool(default = True),
- "machine": attr.string(default = "n1-standard-1"),
- "targets": attr.label_list(
- mandatory = True,
- allow_empty = False,
- cfg = "target",
- ),
- },
- test = True,
- implementation = _vm_test_impl,
-)
-
-def vm_test(
- installer = "//tools/installers:head",
- **kwargs):
- """Runs the given targets as a remote test.
-
- Args:
- installer: Script to run before all targets.
- **kwargs: All test arguments. Should include targets and image.
- """
- targets = kwargs.pop("targets", [])
- if installer:
- targets = [installer] + targets
- if default_installer():
- targets = [default_installer()] + targets
- _vm_test(
- tags = [
- "local",
- "manual",
- ],
- targets = targets,
- local = 1,
- **kwargs
- )