def Load(
        cls,
        repository_root,
        configuration,
        is_fast_environment,
        force=False,
    ):
        if not force and os.getenv(Constants.DE_REPO_ROOT_NAME):
            repository_root = os.getenv(Constants.DE_REPO_ROOT_NAME)
            configuration = os.getenv(Constants.DE_REPO_CONFIGURATION_NAME)

        filename = cls._GetFilename(repository_root, configuration,
                                    is_fast_environment)

        if not force and os.path.isfile(filename):
            try:
                # Load the json
                with open(filename, 'r') as f:
                    data = json.load(f)

                # Convert the json structure into concrete types
                tool_version_specs = [
                    Configuration.VersionInfo(
                        vi_data["Name"],
                        vi_data["Version"],
                    ) for vi_data in data["VersionSpecs"]["Tools"]
                ]

                library_version_specs = {
                    language: [
                        Configuration.VersionInfo(
                            vi_data["Name"],
                            vi_data["Version"],
                        ) for vi_data in language_version_infos
                    ]
                    for language, language_version_infos in six.iteritems(
                        data["VersionSpecs"]["Libraries"])
                }

                return cls(
                    data["Id"],
                    data["Root"],
                    data["IsMixinRepo"],
                    data["Configuration"],
                    [
                        Repository(
                            repo_data["Id"],
                            repo_data["Name"],
                            repo_data["Root"],
                            repo_data["Configuration"],
                            repo_data["IsMixinRepo"],
                        ) for repo_data in data["PrioritizedRepositories"]
                    ],
                    Configuration.VersionSpecs(
                        tool_version_specs,
                        library_version_specs,
                    ),
                )

            except:
                pass

        # Generate the data
        repository_root = CommonEnvironmentImports.FileSystem.Normalize(
            repository_root)
        assert os.path.isdir(repository_root), repository_root

        repositories = OrderedDict()

        tool_version_info = []
        library_version_info = {}
        version_info_lookup = {}

        # ----------------------------------------------------------------------
        def Walk(
            referencing_repo,
            repo,
            priority_modifier,
        ):
            if repo.Id not in repositories:
                bootstrap_info = EnvironmentBootstrap.Load(repo.Root)

                bootstrap_info.Repo = repo
                bootstrap_info.ReferencingRepo = referencing_repo
                bootstrap_info.priority_modifier = 0

                repositories[repo.Id] = bootstrap_info

                recurse = True
            else:
                recurse = False

            bootstrap_info = repositories[repo.Id]
            bootstrap_info.priority_modifier += priority_modifier

            # Ensure that the configuration name is valid
            if bootstrap_info.IsConfigurable and not repo.Configuration:
                raise Exception(
                    "The repository at '{}' is configurable, but no configuration was provided."
                    .format(repo.Root))

            if not bootstrap_info.IsConfigurable and repo.Configuration:
                raise Exception(
                    "The repository at '{}' is not configurable, but a configuration was provided ({})."
                    .format(repo.Root, repo.Configuration))

            if repo.Configuration not in bootstrap_info.Configurations:
                raise Exception(
                    textwrap.dedent("""\
                    The configuration '{config}' is not a valid configuration for the repository at '{root}'.
                    Valid configuration values are:
                    {configs}
                    """).format(
                        config=repo.Configuration,
                        root=repo.Root,
                        configs='\n'.join([
                            "    - {}".format(config or "<None>") for config in
                            six.iterkeys(bootstrap_info.Configurations)
                        ]),
                    ))

            # Check for consistent repo locations
            if repo.Root != bootstrap_info.Repo.Root:
                raise Exception(
                    textwrap.dedent("""\
                    There is a mismatch in repository locations.

                    Repository:                 {name} <{id}>
        
                    New Location:               {new_value}
                    Referenced By:              {new_name} <{new_id}> [{new_root}]
        
                    Original Location:          {original_value}
                    Referenced By:              {original_name} <{original_id}> [{original_root}]
                    """).format(
                        name=repo.Name,
                        id=repo.Id,
                        new_value=repo.Root,
                        new_name=referencing_repo.Name,
                        new_id=referencing_repo.Id,
                        new_root=referencing_repo.Root,
                        original_value=bootstrap_info.Repo.Root,
                        original_name=bootstrap_info.Repo.Name,
                        original_id=bootstrap_info.Repo.Id,
                        original_root=bootstrap_info.Repo.Root,
                    ))

            # Check for consistent configurations
            if repo.Configuration != bootstrap_info.Repo.Configuration:
                raise Exception(
                    textwrap.dedent("""\
                    There is a mismatch in repository configurations:
        
                    Repository:                 {name} <{id}>
        
                    New Configuration:          {new_value}
                    Referenced By:              {new_name} <{new_id}> [{new_root}]
        
                    Original Configuration:     {original_value}
                    Referenced By:              {original_name} <{original_id}> [{original_root}]
                    """).format(
                        name=repo.Name,
                        id=repo.Id,
                        new_value=repo.Configuration,
                        new_name=referencing_repo.Name,
                        new_id=referencing_repo.Id,
                        new_root=referencing_repo.Root,
                        original_value=bootstrap_info.Repo.Configuration,
                        original_name=bootstrap_info.Repo.Name,
                        original_id=bootstrap_info.Repo.Id,
                        original_root=bootstrap_info.Repo.Root,
                    ))

            # Process the version info

            # ----------------------------------------------------------------------
            def OnVersionMismatch(type_, version_info, existing_version_info):
                original_repo = version_info_lookup[existing_version_info]

                raise Exception(
                    textwrap.dedent("""\
                    There was a mismatch in version information.
        
                    Item:                       {name} <{type_}>
        
                    New Version:                {new_value}
                    Specified By:               {new_name} ({new_config}) <{new_id}> [{new_root}]
        
                    Original Version:           {original_value}
                    Specified By:               {original_name} ({original_config}) <{original_id}> [{original_root}]
                    """).format(
                        name=version_info.Name,
                        type_=type_,
                        new_value=version_info.Version,
                        new_name=repo.Name,
                        new_config=repo.Configuration,
                        new_id=repo.Id,
                        new_root=repo.Root,
                        original_value=existing_version_info.Version,
                        original_name=original_repo.Name,
                        original_config=original_repo.Configuration,
                        original_id=original_repo.Id,
                        original_root=original_repo.Root,
                    ))

            # ----------------------------------------------------------------------

            for version_info in bootstrap_info.Configurations[
                    repo.Configuration].VersionSpecs.Tools:
                existing_version_info = next(
                    (tvi for tvi in tool_version_info
                     if tvi.Name == version_info.Name), None)

                if existing_version_info is None:
                    tool_version_info.append(version_info)
                    version_info_lookup[version_info] = repo

                elif version_info.Version != existing_version_info.Version:
                    OnVersionMismatch("Tools", version_info,
                                      existing_version_info)

            for library_language, version_info_items in six.iteritems(
                    bootstrap_info.Configurations[
                        repo.Configuration].VersionSpecs.Libraries):
                for version_info in version_info_items:
                    existing_version_info = next(
                        (lvi for lvi in library_version_info.get(
                            library_language, [])
                         if lvi.Name == version_info.Name), None)

                    if existing_version_info is None:
                        library_version_info.setdefault(
                            library_language, []).append(version_info)
                        version_info_lookup[version_info] = repo

                    elif version_info.Version != existing_version_info.Version:
                        OnVersionMismatch(
                            "{} Libraries".format(library_language),
                            version_info, existing_version_info)

            # Process this repository's dependencies
            if recurse:
                for dependency_info in bootstrap_info.Configurations[
                        repo.Configuration].Dependencies:
                    Walk(
                        repo,
                        Repository.Create(dependency_info.RepositoryRoot,
                                          dependency_info.Configuration),
                        priority_modifier + 1,
                    )

        # ----------------------------------------------------------------------

        this_repository = Repository.Create(repository_root, configuration)

        Walk(None, this_repository, 1)

        # Order the results from the most- to least-frequently requested
        priority_values = [(id, info.priority_modifier)
                           for id, info in six.iteritems(repositories)]
        priority_values.sort(key=lambda x: x[1], reverse=True)

        this_bootstrap_info = repositories[priority_values[-1][0]]
        this_configuration = this_bootstrap_info.Configurations[configuration]

        # Check the fingerprints
        calculated_fingerprint = Utilities.CalculateFingerprint(
            [
                repository_root,
            ] + [
                dependency.RepositoryRoot
                for dependency in this_configuration.Dependencies
            ],
            repository_root,
        )
        if this_configuration.Fingerprint != calculated_fingerprint:
            lines = []

            line_template = "{0:<80}  :  {1}"

            for k, v in six.iteritems(calculated_fingerprint):
                if k not in this_configuration.Fingerprint:
                    lines.append(line_template.format(k[0], "Added"))
                else:
                    lines.append(
                        line_template.format(
                            k, "Identical"
                            if v == this_configuration.Fingerprint[k] else
                            "Modified"))

            for k in six.iteritems(this_configuration.Fingerprint):
                if k not in calculated_fingerprint:
                    lines.append(line_template.format(k[0], "Removed"))

            assert lines
            raise Exception(
                textwrap.dedent("""\
                ********************************************************************************
                ********************************************************************************
                It appears that one or more of the repositories that this repository depends on
                have changed.

                Please run '{setup}' again.
        
                    {status}
        
                ********************************************************************************
                ********************************************************************************
                """).format(
                    setup=CommonEnvironmentImports.CurrentShell.
                    CreateScriptName(Constants.SETUP_ENVIRONMENT_NAME),
                    status=CommonEnvironmentImports.StringHelpers.LeftJustify(
                        '\n'.join(lines), 4),
                ))

        # Create the object
        return cls(
            this_repository.Id,
            repository_root,
            this_bootstrap_info.IsMixinRepo,
            configuration,
            is_fast_environment,
            [repositories[id].Repo for id, _ in priority_values],
            Configuration.VersionSpecs(tool_version_info,
                                       library_version_info),
        )
Beispiel #2
0
    def Execute():
        commands = []

        # Load the activation data
        output_stream.write("\nLoading data...")
        with output_stream.DoneManager(suffix='\n', ):
            is_activated = bool(os.getenv(Constants.DE_REPO_ACTIVATED_FLAG))

            activation_data = ActivationData.Load(
                repository_root,
                configuration,
                fast,
                force=force or not is_activated,
            )

        # Augment the version specs with those provided on the command line
        for k, v in six.iteritems(version_specs):
            keys = k.split('/')

            if keys[0] == Constants.TOOLS_SUBDIR:
                if len(keys) != 2:
                    raise Exception(
                        "'{}' is not a valid version spec; expected '{}/<Tool Name>'."
                        .format(k, Constants.TOOLS_SUBDIR))

                name = keys[1]
                version_infos = activation_data.VersionSpecs.Tools

            elif keys[0] == Constants.LIBRARIES_SUBDIR:
                if len(keys) != 3:
                    raise Exception(
                        "'{}' is not a valid version spec; expected '{}/<Language>/<Library Name>'."
                        .format(k, Constants.LIBRARIES_SUBDIR))

                name = keys[2]
                version_infos = activation_data.VersionSpecs.Libraries.setdefault(
                    keys[1], [])

            else:
                raise Exception(
                    "'{}' is not a valid version spec prefix".format(keys[0]))

            found = False
            for version_info in version_infos:
                if version_info.Name == name:
                    version_info.Version = v
                    found = True
                    break

            if not found:
                version_infos.append(Configuration.VersionInfo(name, v))

        # ----------------------------------------------------------------------
        def LoadMixinLibrary(mixin_path):
            mixin_activation_data = ActivationData.Load(
                mixin_path,
                configuration=None,
                force=True,
            )
            if not mixin_activation_data.IsMixinRepo:
                raise Exception(
                    "The repository at '{}' is not a mixin repository".format(
                        mixin_path))

            assert not mixin_activation_data.VersionSpecs.Tool
            assert not mixin_activation_data.VersionSpecs.Libraries
            assert len(mixin_activation_data.PrioritizedRepositories) == 1

            mixin_repo = mixin_activation_data.PrioritizedRepositories[0]
            mixin_repo.IsMixinRepo = True

            # Add this repo as a repo to be activated if it isn't already in the list
            if not any(r.Id == mixin_repo.Id
                       for r in activation_data.PrioritizedRepositories):
                activation_data.PrioritizedRepositories.append(mixin_repo)

        # ----------------------------------------------------------------------

        # Are we activating a mixin repository?
        is_mixin_repo = EnvironmentBootstrap.Load(repository_root).IsMixinRepo

        if is_mixin_repo:
            if force:
                raise Exception(
                    "'force' cannot be used with mixin repositories")

            LoadMixinLibrary(repository_root)

        for mixin in mixins:
            LoadMixinLibrary(mixin)

        # Ensure that the generated dir exists
        generated_dir = activation_data.GetActivationDir()
        CommonEnvironmentImports.FileSystem.MakeDirs(generated_dir)

        methods = [
            _ActivateActivationData,
            _ActivateNames,
            _ActivateTools,
            _ActivatePython,
            _ActivateScripts,
            _ActivateCustom,
            _ActivatePrompt,
        ]

        if not is_mixin_repo:
            methods = [
                _ActivateOriginalEnvironment,
                _ActivateRepoEnvironmentVars,
            ] + methods

        args = OrderedDict([
            ("output_stream", output_stream),
            ("configuration", configuration),
            ("activation_data", activation_data),
            ("version_specs", activation_data.VersionSpecs),
            ("generated_dir", generated_dir),
            ("debug", debug),
            ("verbose", verbose),
            ("no_python_libraries", no_python_libraries),
            ("fast", fast),
            ("repositories", activation_data.PrioritizedRepositories),
            ("is_mixin_repo", is_mixin_repo),
        ])

        # Invoke the methods
        for original_method in methods:
            method = CommonEnvironmentImports.Interface.CreateCulledCallable(
                original_method)

            result = method(args)

            if isinstance(result, list):
                commands += result
            elif result is not None:
                commands.append(result)

        return commands