public String _range(String args[]) {
verifyCommand(args, _rangeHelp, _rangePattern, 2, 3);
Version version = null;
if (args.length >= 3) version = new Version(args[2]);
else {
String v = domain.getProperty("@");
if (v == null) return null;
version = new Version(v);
}
String spec = args[1];
Matcher m = RANGE_MASK.matcher(spec);
m.matches();
String floor = m.group(1);
String floorMask = m.group(2);
String ceilingMask = m.group(3);
String ceiling = m.group(4);
String left = version(version, floorMask);
String right = version(version, ceilingMask);
StringBuilder sb = new StringBuilder();
sb.append(floor);
sb.append(left);
sb.append(",");
sb.append(right);
sb.append(ceiling);
String s = sb.toString();
VersionRange vr = new VersionRange(s);
if (!(vr.includes(vr.getHigh()) || vr.includes(vr.getLow()))) {
domain.error(
"${range} macro created an invalid range %s from %s and mask %s", s, version, spec);
}
return sb.toString();
}
/**
* System command. Execute a command and insert the result.
*
* @param args
* @param help
* @param patterns
* @param low
* @param high
*/
public String system_internal(boolean allowFail, String args[]) throws Exception {
verifyCommand(
args,
"${"
+ (allowFail ? "system-allow-fail" : "system")
+ ";<command>[;<in>]}, execute a system command",
null,
2,
3);
String command = args[1];
String input = null;
if (args.length > 2) {
input = args[2];
}
Process process = Runtime.getRuntime().exec(command, null, domain.getBase());
if (input != null) {
process.getOutputStream().write(input.getBytes("UTF-8"));
}
process.getOutputStream().close();
String s = IO.collect(process.getInputStream(), "UTF-8");
int exitValue = process.waitFor();
if (exitValue != 0) return exitValue + "";
if (!allowFail && (exitValue != 0)) {
domain.error("System command " + command + " failed with " + exitValue);
}
return s.trim();
}
private String doCommand(Object target, String method, String[] args) {
if (target == null) ; // System.err.println("Huh? Target should never be null " +
// domain);
else {
String cname = "_" + method.replaceAll("-", "_");
try {
Method m = target.getClass().getMethod(cname, new Class[] {String[].class});
return (String) m.invoke(target, new Object[] {args});
} catch (NoSuchMethodException e) {
// Ignore
} catch (InvocationTargetException e) {
if (e.getCause() instanceof IllegalArgumentException) {
domain.error(
"%s, for cmd: %s, arguments; %s",
e.getCause().getMessage(), method, Arrays.toString(args));
} else {
domain.warning("Exception in replace: %s", e.getCause());
e.getCause().printStackTrace();
}
} catch (Exception e) {
domain.warning("Exception in replace: " + e + " method=" + method);
e.printStackTrace();
}
}
return null;
}
String version(Version version, String mask) {
if (version == null) {
String v = domain.getProperty("@");
if (v == null) {
domain.error(
"No version specified for ${version} or ${range} and no implicit version ${@} either, mask=%s",
mask);
v = "0";
}
version = new Version(v);
}
StringBuilder sb = new StringBuilder();
String del = "";
for (int i = 0; i < mask.length(); i++) {
char c = mask.charAt(i);
String result = null;
if (c != '~') {
if (i == 3) {
result = version.getQualifier();
} else if (Character.isDigit(c)) {
// Handle masks like +00, =+0
result = String.valueOf(c);
} else {
int x = version.get(i);
switch (c) {
case '+':
x++;
break;
case '-':
x--;
break;
case '=':
break;
}
result = Integer.toString(x);
}
if (result != null) {
sb.append(del);
del = ".";
sb.append(result);
}
}
}
return sb.toString();
}
public String _error(String args[]) {
for (int i = 1; i < args.length; i++) {
domain.error(process(args[i]));
}
return "";
}