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/*******************************************************************************
* Copyright (c) 2005 Intel Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Intel Corporation - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.managedbuilder.gnu.cygwin;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import org.eclipse.cdt.managedbuilder.core.IBuildPathResolver;
import org.eclipse.cdt.managedbuilder.core.IConfiguration;
import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
import org.eclipse.cdt.managedbuilder.envvar.IBuildEnvironmentVariable;
import org.eclipse.cdt.managedbuilder.gnu.ui.GnuUIPlugin;
import org.eclipse.cdt.utils.spawner.ProcessFactory;
import org.eclipse.core.runtime.IPath;
public class CygwinPathResolver implements IBuildPathResolver {
static final String TOOL = "/cygpath -w -p "; //$NON-NLS-1$
static final char BS = '\\'; //$NON-NLS-1$
static final char SLASH = '/'; //$NON-NLS-1$
static final String PROPERTY_OS_NAME = "os.name"; //$NON-NLS-1$
static final String PROPERTY_OS_VALUE = "windows";//$NON-NLS-1$
static final String ARG0 = "regedit"; //$NON-NLS-1$
static final String ARG1 = "/ea"; //$NON-NLS-1$
static final String OUTFILE = "result.txt"; //$NON-NLS-1$
static final String SP = " "; //$NON-NLS-1$
static final String QUOT = "\""; //$NON-NLS-1$
static final String REGISTRY_KEY = "\\SOFTWARE\\Cygnus Solutions\\Cygwin\\mounts v2"; //$NON-NLS-1$
static final String[] REGISTRY_ROOTS = {"\"HKEY_CURRENT_USER", "\"HKEY_LOCAL_MACHINE"}; //$NON-NLS-1$ //$NON-NLS-2$
static final String REGISTRY_BINS = "/usr/bin"; //$NON-NLS-1$
static final String CYGPREF_NAME = "cygdrive prefix"; //$NON-NLS-1$
static final String PATH_NAME = "native"; //$NON-NLS-1$
static final String REG_SZ = "REG_SZ"; //$NON-NLS-1$
static final String BINPATTERN = "/usr/bin"; //$NON-NLS-1$
static final String ETCPATTERN = "/etc"; //$NON-NLS-1$
static final String ROOTPATTERN = "/"; //$NON-NLS-1$
static final String DELIMITER_UNIX = ":"; //$NON-NLS-1$
static final String DELIMITER_WIN = ";"; //$NON-NLS-1$
static final String GCC_VERSION_CMD = "gcc --version"; //$NON-NLS-1$
static final String MINGW_SPECIAL = "mingw "; //$NON-NLS-1$
static final String CYGWIN_SPECIAL = "cygwin "; //$NON-NLS-1$
static boolean checked = false;
static String binCygwin = null;
static String rootCygwin = null;
static String etcCygwin = null;
/* (non-Javadoc)
* @see org.eclipse.cdt.managedbuilder.core.IBuildPathResolver#resolveBuildPaths(int, java.lang.String, java.lang.String, org.eclipse.cdt.managedbuilder.core.IConfiguration)
*/
public String[] resolveBuildPaths(int pathType, String variableName,
String variableValue, IConfiguration configuration) {
if(!isWindows()){
return variableValue.split(DELIMITER_UNIX);
} else if(isMinGW(configuration)){
return variableValue.split(DELIMITER_WIN);
}
String[] result = variableValue.split(DELIMITER_UNIX);
String exePath = getBinPath();
if (exePath == null) { return result; } // no changes
File file = new File(exePath);
if (!file.exists() || !file.isDirectory()) { return result; } // no changes
ArrayList ls = new ArrayList();
String s = exePath + TOOL + variableValue;
String[] lines = exec(s, configuration);
if (lines != null && lines.length > 0) {
result = lines[0].replace(BS,SLASH).split(DELIMITER_WIN);
}
return result;
}
/*
* returns "/etc" path in Windows format
*/
public static String getEtcPath() {
if (!checked) checkRegistry();
return etcCygwin;
}
/*
* returns "/usr/bin" path in Windows format
*/
public static String getBinPath() {
if (!checked) checkRegistry();
return binCygwin;
}
/*
* returns Cygwin root ("/") path in Windows format
*/
public static String getRootPath() {
if (!checked) checkRegistry();
return rootCygwin;
}
/**
* @return
*/
public static boolean isWindows() {
return (System.getProperty(PROPERTY_OS_NAME).toLowerCase().startsWith(PROPERTY_OS_VALUE));
}
/**
* reads once data from registry (for Win32 only)
* and sets corresponding properties;
*/
private static synchronized void checkRegistry() {
checked = true;
etcCygwin = null;
binCygwin = null;
rootCygwin = null;
if (!isWindows()) return;
for(int i = 0; i < REGISTRY_ROOTS.length; i++){
IPath toSave = GnuUIPlugin.getDefault().getStateLocation();
toSave = toSave.addTrailingSeparator().append(OUTFILE);
String[] args = {ARG0, ARG1, toSave.toOSString(), REGISTRY_ROOTS[i]+REGISTRY_KEY+QUOT };
try {
File f = new File(toSave.toOSString());
f.delete();
if (ProcessFactory.getFactory().exec(args).waitFor() == 0 && f.exists() && f.canRead()) {
BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(f)));
ArrayList ls = new ArrayList(1);
String s;
while ((s = r.readLine() ) != null ) ls.add(s);
r.close();
f.delete();
String[] aus = (String[])ls.toArray(new String[0]);
if (etcCygwin == null) { etcCygwin = getDir(aus, ETCPATTERN); }
if (binCygwin == null) { binCygwin = getDir(aus, BINPATTERN); }
if (rootCygwin == null) { rootCygwin = getDir(aus, ROOTPATTERN);}
}
} catch (FileNotFoundException e) {
} catch (IOException e) {
} catch (InterruptedException e) {
} catch (SecurityException e) {
}
}
}
/**
* @param ls - "regedit"'s output
* @param pattern - path to search
* @return
*/
private static String getDir(String[] ls, String pattern) {
String tail = ""; //$NON-NLS-1$
while (pattern.length() > 0) {
boolean search = false;
for (int i=0; i<ls.length; i++) {
int pos=0;
if (ls[i].lastIndexOf(REGISTRY_KEY) > 0) {
search = ls[i].endsWith(pattern+"]"); //$NON-NLS-1$
}
else if (search && ((pos = ls[i].lastIndexOf(PATH_NAME)) > 0)) {
String s = ls[i].substring(pos + PATH_NAME.length() + 3).trim();
s = s.substring(0, s.length() - 1) + tail;
return s.replaceAll("\\\\+", "/"); //$NON-NLS-1$ //$NON-NLS-2$
}
}
if (pattern.equals(ROOTPATTERN)) break; // no other paths to search
int pos = pattern.lastIndexOf(SLASH);
if (pos < 0) break;
tail = pattern.substring(pos, pattern.length()) + tail;
if (pos == 0)
pattern = ROOTPATTERN; // leave leading slash
else
pattern = pattern.substring(0, pos);
}
return null;
}
private static String[] exec(String cmd, IConfiguration cfg) {
try {
// Process proc = Runtime.getRuntime().exec(cmd);
IBuildEnvironmentVariable vars[] = ManagedBuildManager.getEnvironmentVariableProvider().getVariables(cfg,true,true);
String env[] = new String[vars.length];
for(int i = 0; i < env.length; i++){
env[i] = vars[i].getName() + "=";
String value = vars[i].getValue();
if(value != null)
env[i] += value;
}
Process proc = ProcessFactory.getFactory().exec(cmd.split(SP), env);
if (proc != null) {
InputStream ein = proc.getInputStream();
BufferedReader d1 = new BufferedReader(new InputStreamReader(ein));
ArrayList ls = new ArrayList(10);
String s;
while ((s = d1.readLine() ) != null ) {
ls.add(s);
}
ein.close();
return (String[])ls.toArray(new String[0]);
}
} catch (IOException e) {
//TODO: log
}
return null;
}
public static boolean isMinGW(IConfiguration cfg){
String versionInfo[] = exec(GCC_VERSION_CMD, cfg);
if(versionInfo != null) {
for(int i = 0; i < versionInfo.length; i++){
if(versionInfo[i].indexOf(MINGW_SPECIAL) != -1)
return true;
else if(versionInfo[i].indexOf(CYGWIN_SPECIAL) != -1)
return false;
}
}
return false;
}
}
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