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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* 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.jetbrains.python.sdk.flavors;
import com.google.common.collect.ImmutableMap;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.util.io.WindowsRegistryUtil;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.LocalFileSystem;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.newvfs.NewVirtualFile;
import com.jetbrains.python.PythonHelpersLocator;
import java.io.File;
import java.util.*;
/**
* @author yole
*/
public class WinPythonSdkFlavor extends CPythonSdkFlavor {
public static WinPythonSdkFlavor INSTANCE = new WinPythonSdkFlavor();
private static Map<String, String> ourRegistryMap =
ImmutableMap.of("HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore", "python.exe",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Python\\PythonCore", "python.exe",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\IronPython", "ipy.exe");
private static Set<String> ourRegistryCache;
private WinPythonSdkFlavor() {
}
@Override
public Collection<String> suggestHomePaths() {
Set<String> candidates = new TreeSet<String>();
findInCandidatePaths(candidates, "python.exe", "jython.bat", "pypy.exe");
findInstallations(candidates, "python.exe", PythonHelpersLocator.getHelpersRoot().getParent());
return candidates;
}
private static void findInCandidatePaths(Set<String> candidates, String... exe_names) {
for (String name : exe_names) {
findInstallations(candidates, name, "C:\\", "C:\\Program Files\\");
findInPath(candidates, name);
findInRegistry(candidates);
}
}
private static void findInstallations(Set<String> candidates, String exe_name, String... roots) {
for (String root : roots) {
findSubdirInstallations(candidates, root, FileUtil.getNameWithoutExtension(exe_name), exe_name);
}
}
public static void findInPath(Collection<String> candidates, String exeName) {
final String path = System.getenv("PATH");
if (path == null) return;
for (String pathEntry : StringUtil.split(path, ";")) {
if (pathEntry.startsWith("\"") && pathEntry.endsWith("\"")) {
if (pathEntry.length() < 2) continue;
pathEntry = pathEntry.substring(1, pathEntry.length() - 1);
}
File f = new File(pathEntry, exeName);
if (f.exists()) {
candidates.add(FileUtil.toSystemDependentName(f.getPath()));
}
}
}
public static void findInRegistry(Collection<String> candidates) {
fillRegistryCache();
candidates.addAll(ourRegistryCache);
}
private static void fillRegistryCache() {
if (ourRegistryCache == null) {
ourRegistryCache = new HashSet<String>();
for (Map.Entry<String, String> entry : ourRegistryMap.entrySet()) {
final String prefix = entry.getKey();
final String exePath = entry.getValue();
List<String> strings = WindowsRegistryUtil.readRegistryBranch(prefix);
for (String string : strings) {
final String path = WindowsRegistryUtil.readRegistryDefault(prefix + "\\" + string +
"\\InstallPath");
if (path != null) {
File f = new File(path, exePath);
if (f.exists()) {
ourRegistryCache.add(FileUtil.toSystemDependentName(f.getPath()));
}
}
}
}
}
}
private static void findSubdirInstallations(Collection<String> candidates, String rootDir, String dir_prefix, String exe_name) {
VirtualFile rootVDir = LocalFileSystem.getInstance().findFileByPath(rootDir);
if (rootVDir != null) {
if (rootVDir instanceof NewVirtualFile) {
((NewVirtualFile)rootVDir).markDirty();
}
rootVDir.refresh(true, false);
for (VirtualFile dir : rootVDir.getChildren()) {
if (dir.isDirectory() && dir.getName().toLowerCase().startsWith(dir_prefix)) {
VirtualFile python_exe = dir.findChild(exe_name);
if (python_exe != null) candidates.add(FileUtil.toSystemDependentName(python_exe.getPath()));
}
}
}
}
}
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