public boolean hasAccess() {
assert (binDir != null);
assert (homeDir != null);
return binDir.canWrite() && homeDir.canWrite();
}
public void deinit(Appendable out, boolean force) throws Exception {
Settings settings = new Settings(platform.getConfigFile());
if (!force) {
Justif justify = new Justif(80, 40);
StringBuilder sb = new StringBuilder();
Formatter f = new Formatter(sb);
try {
String list = listFiles(platform.getGlobal());
if (list != null) {
f.format("In global default environment:%n");
f.format(list);
}
list = listFiles(platform.getLocal());
if (list != null) {
f.format("In local default environment:%n");
f.format(list);
}
if (settings.containsKey(JPM_CACHE_GLOBAL)) {
list = listFiles(IO.getFile(settings.get(JPM_CACHE_GLOBAL)));
if (list != null) {
f.format("In global configured environment:%n");
f.format(list);
}
}
if (settings.containsKey(JPM_CACHE_LOCAL)) {
list = listFiles(IO.getFile(settings.get(JPM_CACHE_LOCAL)));
if (list != null) {
f.format("In local configured environment:%n");
f.format(list);
}
}
list = listSupportFiles();
if (list != null) {
f.format("jpm support files:%n");
f.format(list);
}
f.format("%n%n");
f.format(
"All files listed above will be deleted if deinit is run with the force flag set"
+ " (\"jpm deinit -f\" or \"jpm deinit --force\"%n%n");
f.flush();
justify.wrap(sb);
out.append(sb.toString());
} finally {
f.close();
}
} else { // i.e. if(force)
int count = 0;
File[] caches = {platform.getGlobal(), platform.getLocal(), null, null};
if (settings.containsKey(JPM_CACHE_LOCAL)) {
caches[2] = IO.getFile(settings.get(JPM_CACHE_LOCAL));
}
if (settings.containsKey(JPM_CACHE_GLOBAL)) {
caches[3] = IO.getFile(settings.get(JPM_CACHE_GLOBAL));
}
ArrayList<File> toDelete = new ArrayList<File>();
for (File cache : caches) {
if (cache == null || !cache.exists()) {
continue;
}
listFiles(cache, toDelete);
if (toDelete.size() > count) {
count = toDelete.size();
if (!cache.canWrite()) {
reporter.error(PERMISSION_ERROR + " (" + cache + ")");
return;
}
toDelete.add(cache);
}
}
listSupportFiles(toDelete);
for (File f : toDelete) {
if (f.exists() && !f.canWrite()) {
reporter.error(PERMISSION_ERROR + " (" + f + ")");
}
}
if (reporter.getErrors().size() > 0) {
return;
}
for (File f : toDelete) {
if (f.exists()) {
IO.deleteWithException(f);
}
}
}
}
private static String validateLogFile(String logFileName, String scriptName) {
String strippedDownScriptName = null;
if (scriptName != null) {
File scriptFile = new File(scriptName);
if (!scriptFile.isDirectory()) {
String scriptFileAbsPath;
try {
scriptFileAbsPath = scriptFile.getCanonicalPath();
} catch (IOException ioe) {
throw new AssertionError(
"Could not compute canonical path to the script file " + ioe.getMessage());
}
strippedDownScriptName = getFileFromCanonicalPath(scriptFileAbsPath);
}
}
String defaultLogFileName =
(strippedDownScriptName == null ? "pig_" : strippedDownScriptName)
+ new Date().getTime()
+ ".log";
File logFile;
if (logFileName != null) {
logFile = new File(logFileName);
// Check if the file name is a directory
// append the default file name to the file
if (logFile.isDirectory()) {
if (logFile.canWrite()) {
try {
logFileName = logFile.getCanonicalPath() + File.separator + defaultLogFileName;
} catch (IOException ioe) {
throw new AssertionError(
"Could not compute canonical path to the log file " + ioe.getMessage());
}
return logFileName;
} else {
throw new AssertionError(
"Need write permission in the directory: " + logFileName + " to create log file.");
}
} else {
// we have a relative path or an absolute path to the log file
// check if we can write to the directory where this file is/will be stored
if (logFile.exists()) {
if (logFile.canWrite()) {
try {
logFileName = new File(logFileName).getCanonicalPath();
} catch (IOException ioe) {
throw new AssertionError(
"Could not compute canonical path to the log file " + ioe.getMessage());
}
return logFileName;
} else {
// do not have write permissions for the log file
// bail out with an error message
throw new AssertionError(
"Cannot write to file: " + logFileName + ". Need write permission.");
}
} else {
logFile = logFile.getParentFile();
if (logFile != null) {
// if the directory is writable we are good to go
if (logFile.canWrite()) {
try {
logFileName = new File(logFileName).getCanonicalPath();
} catch (IOException ioe) {
throw new AssertionError(
"Could not compute canonical path to the log file " + ioe.getMessage());
}
return logFileName;
} else {
throw new AssertionError(
"Need write permission in the directory: " + logFile + " to create log file.");
}
} // end if logFile != null else is the default in fall through
} // end else part of logFile.exists()
} // end else part of logFile.isDirectory()
} // end if logFileName != null
// file name is null or its in the current working directory
// revert to the current working directory
String currDir = System.getProperty("user.dir");
logFile = new File(currDir);
logFileName =
currDir + File.separator + (logFileName == null ? defaultLogFileName : logFileName);
if (logFile.canWrite()) {
return logFileName;
}
throw new RuntimeException("Cannot write to log file: " + logFileName);
}
