| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.lib.starlarkbuildapi.python; |
| |
| import com.google.devtools.build.docgen.annot.DocCategory; |
| import com.google.devtools.build.docgen.annot.StarlarkConstructor; |
| import com.google.devtools.build.lib.collect.nestedset.Depset; |
| import com.google.devtools.build.lib.starlarkbuildapi.FileApi; |
| import com.google.devtools.build.lib.starlarkbuildapi.core.ProviderApi; |
| import javax.annotation.Nullable; |
| import net.starlark.java.annot.Param; |
| import net.starlark.java.annot.ParamType; |
| import net.starlark.java.annot.StarlarkBuiltin; |
| import net.starlark.java.annot.StarlarkMethod; |
| import net.starlark.java.eval.EvalException; |
| import net.starlark.java.eval.NoneType; |
| import net.starlark.java.eval.StarlarkThread; |
| import net.starlark.java.eval.StarlarkValue; |
| |
| /** Provider instance for {@code py_runtime}. */ |
| @StarlarkBuiltin( |
| name = "PyRuntimeInfo", |
| doc = |
| "Contains information about a Python runtime, as returned by the <code>py_runtime</code>" |
| + "rule." |
| + "" |
| + "<p>A Python runtime describes either a <em>platform runtime</em> or an <em>in-build " |
| + "runtime</em>. A platform runtime accesses a system-installed interpreter at a known " |
| + "path, whereas an in-build runtime points to a <code>File</code> that acts as the " |
| + "interpreter. In both cases, an \"interpreter\" is really any executable binary or " |
| + "wrapper script that is capable of running a Python script passed on the command " |
| + "line, following the same conventions as the standard CPython interpreter.", |
| category = DocCategory.PROVIDER) |
| public interface PyRuntimeInfoApi<FileT extends FileApi> extends StarlarkValue { |
| |
| static final String DEFAULT_STUB_SHEBANG = "#!/usr/bin/env python3"; |
| |
| @StarlarkMethod( |
| name = "interpreter_path", |
| structField = true, |
| allowReturnNones = true, |
| doc = |
| "If this is a platform runtime, this field is the absolute filesystem path to the " |
| + "interpreter on the target platform. Otherwise, this is <code>None</code>.") |
| @Nullable |
| String getInterpreterPathString(); |
| |
| @StarlarkMethod( |
| name = "interpreter", |
| structField = true, |
| allowReturnNones = true, |
| doc = |
| "If this is an in-build runtime, this field is a <code>File</code> representing the " |
| + "interpreter. Otherwise, this is <code>None</code>. Note that an in-build runtime " |
| + "can use either a prebuilt, checked-in interpreter or an interpreter built from " |
| + "source.") |
| @Nullable |
| FileT getInterpreter(); |
| |
| @StarlarkMethod( |
| name = "files", |
| structField = true, |
| allowReturnNones = true, |
| doc = |
| "If this is an in-build runtime, this field is a <code>depset</code> of <code>File" |
| + "</code>s that need to be added to the runfiles of an executable target that uses " |
| + "this runtime (in particular, files needed by <code>interpreter</code>). The value " |
| + "of <code>interpreter</code> need not be included in this " |
| + "field. If this is a platform runtime then this field is <code>None</code>.") |
| @Nullable |
| Depset getFilesForStarlark(); |
| |
| @StarlarkMethod( |
| name = "python_version", |
| structField = true, |
| doc = |
| "Indicates whether this runtime uses Python major version 2 or 3. Valid values are " |
| + "(only) <code>\"PY2\"</code> and <code>\"PY3\"</code>.") |
| String getPythonVersionForStarlark(); |
| |
| @StarlarkMethod( |
| name = "stub_shebang", |
| structField = true, |
| doc = |
| "\"Shebang\" expression prepended to the bootstrapping Python stub script " |
| + "used when executing <code>py_binary</code> targets. Does not apply " |
| + "to Windows.") |
| String getStubShebang(); |
| |
| /** Provider type for {@link PyRuntimeInfoApi} objects. */ |
| @StarlarkBuiltin(name = "Provider", documented = false, doc = "") |
| interface PyRuntimeInfoProviderApi extends ProviderApi { |
| |
| @StarlarkMethod( |
| name = "PyRuntimeInfo", |
| doc = "The <code>PyRuntimeInfo</code> constructor.", |
| parameters = { |
| @Param( |
| name = "interpreter_path", |
| allowedTypes = { |
| @ParamType(type = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| positional = false, |
| named = true, |
| defaultValue = "None", |
| doc = |
| "The value for the new object's <code>interpreter_path</code> field. Do not give " |
| + "a value for this argument if you pass in <code>interpreter</code>."), |
| @Param( |
| name = "interpreter", |
| allowedTypes = { |
| @ParamType(type = FileApi.class), |
| @ParamType(type = NoneType.class), |
| }, |
| positional = false, |
| named = true, |
| defaultValue = "None", |
| doc = |
| "The value for the new object's <code>interpreter</code> field. Do not give " |
| + "a value for this argument if you pass in <code>interpreter_path</code>."), |
| @Param( |
| name = "files", |
| allowedTypes = { |
| @ParamType(type = Depset.class, generic1 = FileApi.class), |
| @ParamType(type = NoneType.class), |
| }, |
| positional = false, |
| named = true, |
| defaultValue = "None", |
| doc = |
| "The value for the new object's <code>files</code> field. Do not give a value " |
| + "for this argument if you pass in <code>interpreter_path</code>. If " |
| + "<code>interpreter</code> is given and this argument is <code>None</code>, " |
| + "<code>files</code> becomes an empty <code>depset</code> instead."), |
| @Param( |
| name = "python_version", |
| positional = false, |
| named = true, |
| doc = "The value for the new object's <code>python_version</code> field."), |
| @Param( |
| name = "stub_shebang", |
| allowedTypes = {@ParamType(type = String.class)}, |
| positional = false, |
| named = true, |
| defaultValue = "'" + DEFAULT_STUB_SHEBANG + "'", |
| doc = |
| "The value for the new object's <code>stub_shebang</code> field. " |
| + "Default is <code>" |
| + DEFAULT_STUB_SHEBANG |
| + "</code>."), |
| }, |
| useStarlarkThread = true, |
| selfCall = true) |
| @StarlarkConstructor |
| PyRuntimeInfoApi<?> constructor( |
| Object interpreterPathUncast, |
| Object interpreterUncast, |
| Object filesUncast, |
| String pythonVersion, |
| String stubShebang, |
| StarlarkThread thread) |
| throws EvalException; |
| } |
| } |