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new 495a7dd7f5 NIFI-12514 Added Windows support for Python venv
495a7dd7f5 is described below
commit 495a7dd7f5b8cb2e365c25dcf4fbb37884ecdac3
Author: bob <b...@apache.org>
AuthorDate: Thu Mar 14 17:45:02 2024 -0500
NIFI-12514 Added Windows support for Python venv
This closes #8510
Signed-off-by: David Handermann <exceptionfact...@apache.org>
---
.../java/org/apache/nifi/py4j/PythonProcess.java | 28 +++++-
.../org/apache/nifi/py4j/PythonProcessTest.java | 109 +++++++++++++++++++++
2 files changed, 132 insertions(+), 5 deletions(-)
diff --git
a/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/main/java/org/apache/nifi/py4j/PythonProcess.java
b/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/main/java/org/apache/nifi/py4j/PythonProcess.java
index f34199b5bc..3cfb2b30f4 100644
---
a/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/main/java/org/apache/nifi/py4j/PythonProcess.java
+++
b/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/main/java/org/apache/nifi/py4j/PythonProcess.java
@@ -227,10 +227,7 @@ public class PythonProcess {
private Process launchPythonProcess(final int listeningPort, final String
authToken) throws IOException {
final File pythonFrameworkDirectory =
processConfig.getPythonFrameworkDirectory();
final File pythonApiDirectory = new
File(pythonFrameworkDirectory.getParentFile(), "api");
- final File pythonCmdFile = new File(processConfig.getPythonCommand());
- final String pythonCmd = pythonCmdFile.getName();
- final File pythonCommandFile = new File(virtualEnvHome, "bin/" +
pythonCmd);
- final String pythonCommand = pythonCommandFile.getAbsolutePath();
+ final String pythonCommand = resolvePythonCommand();
final File controllerPyFile = new File(pythonFrameworkDirectory,
PYTHON_CONTROLLER_FILENAME);
final ProcessBuilder processBuilder = new ProcessBuilder();
@@ -256,7 +253,7 @@ public class PythonProcess {
processBuilder.environment().put("JAVA_PORT",
String.valueOf(listeningPort));
processBuilder.environment().put("ENV_HOME",
virtualEnvHome.getAbsolutePath());
processBuilder.environment().put("PYTHONPATH", pythonPath);
- processBuilder.environment().put("PYTHON_CMD",
pythonCommandFile.getAbsolutePath());
+ processBuilder.environment().put("PYTHON_CMD", pythonCommand);
processBuilder.environment().put("AUTH_TOKEN", authToken);
// Redirect error stream to standard output stream
@@ -267,6 +264,27 @@ public class PythonProcess {
return processBuilder.start();
}
+ String resolvePythonCommand() throws IOException {
+ final File pythonCmdFile = new File(processConfig.getPythonCommand());
+ final String pythonCmd = pythonCmdFile.getName();
+
+ // Find command directories according to standard Python venv
conventions
+ final File[] virtualEnvDirectories = virtualEnvHome.listFiles((file,
name) -> file.isDirectory() && (name.equals("bin") || name.equals("Scripts")));
+
+ final String commandExecutableDirectory;
+ if (virtualEnvDirectories == null || virtualEnvDirectories.length ==
0) {
+ throw new IOException("Python binary directory could not be found
in " + virtualEnvHome);
+ } else if( virtualEnvDirectories.length == 1) {
+ commandExecutableDirectory = virtualEnvDirectories[0].getName();
+ } else {
+ // Default to bin directory for macOS and Linux
+ commandExecutableDirectory = "bin";
+ }
+
+ final File pythonCommandFile = new File(virtualEnvHome,
commandExecutableDirectory + File.separator + pythonCmd);
+ return pythonCommandFile.getAbsolutePath();
+ }
+
private void setupEnvironment() throws IOException {
final File environmentCreationCompleteFile = new File(virtualEnvHome,
"env-creation-complete.txt");
diff --git
a/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/test/java/org/apache/nifi/py4j/PythonProcessTest.java
b/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/test/java/org/apache/nifi/py4j/PythonProcessTest.java
new file mode 100644
index 0000000000..4a1ad32638
--- /dev/null
+++
b/nifi-nar-bundles/nifi-py4j-bundle/nifi-py4j-bridge/src/test/java/org/apache/nifi/py4j/PythonProcessTest.java
@@ -0,0 +1,109 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.nifi.py4j;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.when;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.nifi.python.ControllerServiceTypeLookup;
+import org.apache.nifi.python.PythonProcessConfig;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.jupiter.api.io.CleanupMode;
+import org.junit.jupiter.api.io.TempDir;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+@ExtendWith(MockitoExtension.class)
+class PythonProcessTest {
+
+ private static final String UNIX_BIN_DIR = "bin";
+
+ private static final String WINDOWS_SCRIPTS_DIR = "Scripts";
+
+ private static final String PYTHON_CMD = "python";
+
+ private PythonProcess pythonProcess;
+
+ @TempDir(cleanup = CleanupMode.ON_SUCCESS)
+ private File virtualEnvHome;
+
+ @Mock
+ private PythonProcessConfig pythonProcessConfig;
+
+ @Mock
+ private ControllerServiceTypeLookup controllerServiceTypeLookup;
+
+ @BeforeEach
+ public void setUp() {
+ this.pythonProcess = new PythonProcess(this.pythonProcessConfig,
this.controllerServiceTypeLookup, virtualEnvHome, "Controller", "Controller");
+ }
+
+ @Test
+ void testResolvePythonCommandWindows() throws IOException {
+ final File scriptsDir = new File(virtualEnvHome, WINDOWS_SCRIPTS_DIR);
+ assertTrue(scriptsDir.mkdir());
+
+ when(pythonProcessConfig.getPythonCommand()).thenReturn(PYTHON_CMD);
+ final String result = this.pythonProcess.resolvePythonCommand();
+
+ final String expected = getExpectedBinaryPath(WINDOWS_SCRIPTS_DIR);
+ assertEquals(expected, result);
+ }
+
+ @Test
+ void testResolvePythonCommandUnix() throws IOException {
+ final File binDir = new File(virtualEnvHome, UNIX_BIN_DIR);
+ assertTrue(binDir.mkdir());
+
+ when(pythonProcessConfig.getPythonCommand()).thenReturn(PYTHON_CMD);
+ final String result = this.pythonProcess.resolvePythonCommand();
+
+ final String expected = getExpectedBinaryPath(UNIX_BIN_DIR);
+ assertEquals(expected, result);
+ }
+
+ @Test
+ void testResolvePythonCommandPreferBin() throws IOException {
+ final File binDir = new File(virtualEnvHome, UNIX_BIN_DIR);
+ assertTrue(binDir.mkdir());
+ final File scriptsDir = new File(virtualEnvHome, WINDOWS_SCRIPTS_DIR);
+ assertTrue(scriptsDir.mkdir());
+
+ when(pythonProcessConfig.getPythonCommand()).thenReturn(PYTHON_CMD);
+ final String result = this.pythonProcess.resolvePythonCommand();
+
+ final String expected = getExpectedBinaryPath(UNIX_BIN_DIR);
+ assertEquals(expected, result);
+ }
+
+ @Test
+ void testResolvePythonCommandNone() {
+ when(pythonProcessConfig.getPythonCommand()).thenReturn(PYTHON_CMD);
+ assertThrows(IOException.class, ()->
this.pythonProcess.resolvePythonCommand());
+ }
+
+ private String getExpectedBinaryPath(String binarySubDirectoryName) {
+ return this.virtualEnvHome.getAbsolutePath() + File.separator +
binarySubDirectoryName + File.separator + PYTHON_CMD;
+ }
+}
