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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import argparse
import os
import subprocess
from enum import Enum
from mach.decorators import Command, CommandArgument, SubCommand
CPP_PATH = "toolkit/components/uniffi-js/GeneratedScaffolding.cpp"
JS_DIR = "toolkit/components/uniffi-bindgen-gecko-js/components/generated"
FIXTURE_JS_DIR = "toolkit/components/uniffi-bindgen-gecko-js/tests/generated"
DOCS_PATH = "docs/rust-components/api/js/"
"""Library to generate bindings from"""
class SourceLibrary(Enum):
GKRUST_UNIFFI_COMPONENTS = "gkrust-uniffi-components"
UNIFFI_BINDINGS_BINDGEN_TESTS = "uniffi-bindgen-gecko-js-test-fixtures"
def cargo_args_for_library(source_library):
if source_library == SourceLibrary.GKRUST_UNIFFI_COMPONENTS:
return []
elif source_library == SourceLibrary.UNIFFI_BINDINGS_BINDGEN_TESTS:
return ["--all-features"]
raise ValueError(source_library)
def build_gkrust_uniffi_library(command_context, source_library):
uniffi_root = crate_root(command_context)
print("Building gkrust-uniffi-components")
cmdline = [
"cargo",
"build",
"--release",
"--manifest-path",
os.path.join(command_context.topsrcdir, "Cargo.toml"),
"--package",
source_library.value,
] + cargo_args_for_library(source_library)
print(cmdline)
subprocess.check_call(cmdline, cwd=uniffi_root)
print()
out_dir = os.path.join(command_context.topsrcdir, "target", "release")
basename = format(source_library.value.replace("-", "_"))
filename_candidates = [
# Linux / Darwin
f"lib{basename}.a",
# Windows
f"{basename}.lib",
# Some other combinations, just in case
f"{basename}.a",
f"lib{basename}.lib",
]
for filename in filename_candidates:
candidate = os.path.join(out_dir, filename)
if os.path.exists(candidate):
return candidate
raise Exception(f"Can't find gkrust_uniffi library in {out_dir}")
def build_uniffi_bindgen_gecko_js(command_context):
uniffi_root = crate_root(command_context)
print("Building uniffi-bindgen-gecko-js")
cmdline = [
"cargo",
"build",
"--release",
"--manifest-path",
os.path.join(command_context.topsrcdir, "Cargo.toml"),
"--package",
"uniffi-bindgen-gecko-js",
]
subprocess.check_call(cmdline, cwd=uniffi_root)
print()
return os.path.join(
command_context.topsrcdir, "target", "release", "uniffi-bindgen-gecko-js"
)
@Command(
"uniffi",
category="devenv",
description="Generate JS bindings using uniffi-bindgen-gecko-js",
)
def uniffi(command_context, *runargs, **lintargs):
"""Run uniffi."""
command_context._sub_mach(["help", "uniffi"])
return 1
def crate_root(command_context):
return os.path.join(
command_context.topsrcdir, "toolkit", "components", "uniffi-bindgen-gecko-js"
)
@SubCommand(
"uniffi",
"generate",
description="Generate/regenerate bindings",
)
def generate_command(command_context):
library_path = build_gkrust_uniffi_library(
command_context,
SourceLibrary.GKRUST_UNIFFI_COMPONENTS,
)
fixtures_library_path = build_gkrust_uniffi_library(
command_context,
SourceLibrary.UNIFFI_BINDINGS_BINDGEN_TESTS,
)
binary_path = build_uniffi_bindgen_gecko_js(command_context)
cmdline = [
binary_path,
"--library-path",
library_path,
"--fixtures-library-path",
fixtures_library_path,
"generate",
"--js-dir",
JS_DIR,
"--fixture-js-dir",
FIXTURE_JS_DIR,
"--cpp-path",
CPP_PATH,
"--docs-path",
DOCS_PATH,
]
subprocess.check_call(cmdline, cwd=command_context.topsrcdir)
return 0
@SubCommand(
"uniffi",
"pipeline",
description="Inspect UniFFI bindings pipeline",
)
@CommandArgument("args", nargs=argparse.REMAINDER)
def pipeline_command(command_context, args):
library_path = build_gkrust_uniffi_library(
command_context,
SourceLibrary.GKRUST_UNIFFI_COMPONENTS,
)
fixtures_library_path = build_gkrust_uniffi_library(
command_context,
SourceLibrary.UNIFFI_BINDINGS_BINDGEN_TESTS,
)
binary_path = build_uniffi_bindgen_gecko_js(command_context)
cmdline = [
binary_path,
"--library-path",
library_path,
"--fixtures-library-path",
fixtures_library_path,
"pipeline",
] + args
subprocess.check_call(cmdline, cwd=command_context.topsrcdir)
return 0
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