/**
* Expand a path name, for example by replacing a leading tilde by the user's home directory (if
* defined on that platform).
*
* @param path
* @return the expanded path
*/
@DataParallel
@Internal("path.expand")
public static String pathExpand(String path) {
if (path.startsWith("~/")) {
return java.lang.System.getProperty("user.home") + path.substring(2);
} else {
return path;
}
}
@Internal("Sys.info")
public static StringVector sysInfo() {
StringVector.Builder sb = new StringVector.Builder();
sb.add(java.lang.System.getProperty("os.name"));
sb.add(java.lang.System.getProperty("os.version"));
/*
* os.build does not exist! maybe we can put jvm info instead?
*
*/
sb.add(java.lang.System.getProperty("os.build"));
try {
sb.add(InetAddress.getLocalHost().getHostName());
} catch (Exception e) {
sb.add("Can not get hostname");
}
sb.add(java.lang.System.getProperty("os.arch"));
/*
*
* login.name does not exist!
*/
sb.add(java.lang.System.getProperty("login.name"));
sb.add(java.lang.System.getProperty("user.name"));
sb.setAttribute(
"names",
new StringArrayVector(
"sysname", "release", "version", "nodename", "machine", "login", "user"));
return (sb.build());
}
/**
* <strong>According to the R docs:</strong> a subdirectory of the temporary directory found by
* the following rule. The environment variables TMPDIR, TMP and TEMP are checked in turn and the
* first found which points to a writable directory is used: if none succeeds the value of R_USER
* (see Rconsole) is used. If the path to the directory contains a space in any of the components,
* the path returned will use the shortnames version of the path.
*
* <p>This implementation also returns the value of {@code System.getProperty(java.io.tmpdir) }
*
* @return temporary sub directory
*/
@Internal
public static String tempdir() {
return java.lang.System.getProperty("java.io.tmpdir");
}