Add __conjure_generator_version__ attribute to top-level packages

conjure-python-core/src/main/java/com/palantir/conjure/python/ConjurePythonGenerator.java

@@ -109,6 +109,7 @@ public List<PythonFile> generate(ConjureDefinition conjureDefinition) {
                 .map(f -> {
                     if (f.build().packageName().indexOf('.') < 0) {
                         f.addContents(versionAttribute(f.build().packageName()));
+                        f.addContents(generatorVersionAttribute(f.build().packageName()));
                     }
                     return f;
                 })
@@ -144,6 +145,13 @@ private PythonClass versionAttribute(String packageName) {
                 .build();
     }
 
+    private PythonClass generatorVersionAttribute(String packageName) {
+        return PythonLine.builder()
+                .text(String.format("__conjure_generator_version__ = \"%s\"", config.generatorVersion()))
+                .packageName(packageName)
+                .build();
+    }
+
     private PythonFile buildPythonSetupFile() {
         PythonSetup.Builder builder = PythonSetup.builder()
                 .putOptions("name", config.packageName())

conjure-python-core/src/main/java/com/palantir/conjure/python/GeneratorConfiguration.java

@@ -22,6 +22,8 @@ public interface GeneratorConfiguration {
 
     Optional<String> packageAuthor();
 
+    String generatorVersion();
+
     String minConjureClientVersion();
 
     boolean shouldWriteCondaRecipe();

conjure-python-core/src/test/java/com/palantir/conjure/python/ConjurePythonGeneratorTest.java

@@ -45,6 +45,7 @@ public final class ConjurePythonGeneratorTest {
                     .packageVersion("0.0.0")
                     .packageDescription("project description")
                     .minConjureClientVersion("1.0.0")
+                    .generatorVersion("0.0.0")
                     .shouldWriteCondaRecipe(true)
                     .build());
     private final InMemoryPythonFileWriter pythonFileWriter = new InMemoryPythonFileWriter();

conjure-python-core/src/test/resources/services/expected/package/__init__.py

@@ -8,3 +8,5 @@
 
 __version__ = "0.0.0"
 
+__conjure_generator_version__ = "0.0.0"
+

conjure-python-core/src/test/resources/types/expected/package/__init__.py

@@ -12,3 +12,5 @@
 
 __version__ = "0.0.0"
 
+__conjure_generator_version__ = "0.0.0"
+

conjure-python/build.gradle

@@ -33,7 +33,8 @@ task generateBuildConfiguration() {
         def minConjureClientVersion = dependencyRecommendations.getRecommendedVersion('com.palantir.conjure.python', 'conjure-python-client')
         def props = new File("$projectDir/src/main/resources/buildConfiguration.yml")
         props.getParentFile().mkdirs()
-        props.text = "minConjureClientVersion: $minConjureClientVersion"
+        props.text = "generatorVersion: ${project.version}\n"
+        props.text += "minConjureClientVersion: $minConjureClientVersion\n"
     }
 }
 

conjure-python/src/main/java/com/palantir/conjure/python/cli/BuildConfiguration.java

@@ -18,6 +18,8 @@ public abstract class BuildConfiguration {
 
     private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper(new YAMLFactory());
 
+    abstract String generatorVersion();
+
     abstract String minConjureClientVersion();
 
     static BuildConfiguration load() {

conjure-python/src/main/java/com/palantir/conjure/python/cli/ConjurePythonCli.java

@@ -108,6 +108,7 @@ static CliConfiguration resolveCliConfiguration(String[] args) {
     static GeneratorConfiguration resolveGeneratorConfiguration(CliConfiguration cliConfig,
             BuildConfiguration buildConfig) {
         return GeneratorConfiguration.builder()
+                .generatorVersion(buildConfig.generatorVersion())
                 .minConjureClientVersion(buildConfig.minConjureClientVersion())
                 .packageAuthor(cliConfig.packageAuthor())
                 .packageDescription(cliConfig.packageDescription())