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| 1 #!/usr/bin/env python |
| 2 # Copyright 2016 The Chromium Authors. All rights reserved. |
| 3 # Use of this source code is governed by a BSD-style license that can be |
| 4 # found in the LICENSE file. |
| 5 |
| 6 """Generates a static catalog manifest to be loaded at runtime. This includes |
| 7 embedded service manifests for every supported service, as well as information |
| 8 indicating how to start each service.""" |
| 9 |
| 10 import argparse |
| 11 import json |
| 12 import os.path |
| 13 import sys |
| 14 |
| 15 eater_relative = "../../../../../tools/json_comment_eater" |
| 16 eater_relative = os.path.join(os.path.abspath(__file__), eater_relative) |
| 17 sys.path.insert(0, os.path.normpath(eater_relative)) |
| 18 try: |
| 19 import json_comment_eater |
| 20 finally: |
| 21 sys.path.pop(0) |
| 22 |
| 23 |
| 24 def ParseJSONFile(filename): |
| 25 with open(filename) as json_file: |
| 26 try: |
| 27 return json.loads(json_comment_eater.Nom(json_file.read())) |
| 28 except ValueError as e: |
| 29 print "%s is not a valid JSON document" % filename |
| 30 raise e |
| 31 |
| 32 |
| 33 def ParseManifest(filename): |
| 34 manifest = ParseJSONFile(filename) |
| 35 if "name" not in manifest: |
| 36 raise Exception("Manifest %s missing \"name\" key." % filename) |
| 37 return manifest["name"], manifest |
| 38 |
| 39 |
| 40 def AddServiceEntryToCatalog(services, name, entry): |
| 41 if name in services: |
| 42 raise Exception("Duplicate service entry for %s" % name) |
| 43 services[name] = entry |
| 44 |
| 45 |
| 46 def main(): |
| 47 parser = argparse.ArgumentParser( |
| 48 description="Generates a Service Manager catalog manifest.") |
| 49 parser.add_argument("--output") |
| 50 parser.add_argument("--packages-dir") |
| 51 parser.add_argument("--pretty", action="store_true") |
| 52 parser.add_argument("--embedded-services", nargs="+", |
| 53 dest="embedded_services", default=[]) |
| 54 parser.add_argument("--standalone-services", nargs="+", |
| 55 dest="standalone_services", default=[]) |
| 56 parser.add_argument("--include-catalogs", nargs="+", dest="included_catalogs", |
| 57 default=[]) |
| 58 parser.add_argument("--override-service-executables", nargs="+", |
| 59 dest="executable_override_specs", default=[]) |
| 60 args, _ = parser.parse_known_args() |
| 61 |
| 62 if args.output is None or args.packages_dir is None: |
| 63 raise Exception("--output and --packages-dir required") |
| 64 |
| 65 services = {} |
| 66 for subcatalog_path in args.included_catalogs: |
| 67 subcatalog = ParseJSONFile(subcatalog_path) |
| 68 for name, entry in subcatalog["services"].iteritems(): |
| 69 AddServiceEntryToCatalog(services, name, entry) |
| 70 |
| 71 executable_overrides = {} |
| 72 for override_spec in args.executable_override_specs: |
| 73 service_name, exe_path = override_spec.split(":", 1) |
| 74 executable_overrides[service_name] = exe_path |
| 75 |
| 76 for name in args.embedded_services: |
| 77 manifest_path = os.path.join(args.packages_dir, name, "manifest.json") |
| 78 service_name, manifest = ParseManifest(manifest_path) |
| 79 entry = { "embedded": True, "manifest": manifest } |
| 80 AddServiceEntryToCatalog(services, service_name, entry) |
| 81 |
| 82 for name in args.standalone_services: |
| 83 manifest_path = os.path.join(args.packages_dir, name, "manifest.json") |
| 84 service_name, manifest = ParseManifest(manifest_path) |
| 85 entry = { "embedded": False, "manifest": ParseJSONFile(manifest_path) } |
| 86 if name in executable_overrides: |
| 87 entry["executable"] = executable_overrides[name] |
| 88 AddServiceEntryToCatalog(services, service_name, entry) |
| 89 |
| 90 catalog = { "services": services } |
| 91 with open(args.output, 'w') as output_file: |
| 92 json.dump(catalog, output_file, indent=2 if args.pretty else -1) |
| 93 |
| 94 return 0 |
| 95 |
| 96 if __name__ == "__main__": |
| 97 sys.exit(main()) |
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