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package org.netbeans.api.ruby.platform;
import java.io.File;
import org.netbeans.modules.ruby.platform.Util;
import org.openide.DialogDisplayer;
import org.openide.NotifyDescriptor;
import org.openide.util.NbBundle;
import org.openide.util.Utilities;
/**
* Accompanied with every {@link RubyPlatform Ruby platform}. Able to check,
* analyze, report, etc. possible problems of the platform.
*/
final class RubyPlatformValidator {
private final RubyPlatform platform;
RubyPlatformValidator(final RubyPlatform platform) {
this.platform = platform;
}
boolean hasRubyGemsInstalled(boolean warn) {
String problems = getRubyGemsProblems();
if (problems != null && warn) {
Util.notifyLocalized(RubyPlatform.class, "RubyPlatformValidator.DoesNotHaveRubyGems", // NOI18N
NotifyDescriptor.WARNING_MESSAGE, platform.getLabel(), problems);
}
return problems == null;
}
/**
* Return <tt>null</tt> if there are no problems running gem. Otherwise
* return an error message which describes the problem.
*/
String getRubyGemsProblems() {
String gemTool = platform.getGemTool();
if (gemTool == null) {
return getGemMissingMessage();
}
String gemHome = platform.getInfo().getGemHome();
if (gemHome == null) {
// edge case, misconfiguration? gem tool is installed but repository is not found
return NbBundle.getMessage(RubyPlatformValidator.class, "RubyPlatformValidator.CannotFindGemRepository");
}
File gemHomeF = new File(gemHome);
if (!gemHomeF.isDirectory()) {
// Is this possible? (Installing gems, but no gems installed yet
return null;
}
return null;
}
boolean checkAndReportRubyGemsProblems() {
String problems = getRubyGemsProblems();
if (problems != null) {
reportRubyGemsProblem();
}
return problems == null;
}
private String getGemMissingMessage() {
if (Utilities.isMac() && "/usr/bin/ruby".equals(platform.getInterpreter())) { // NOI18N
String version = System.getProperty("os.version"); // NOI18N
if (version == null || version.startsWith("10.4")) { // Only a problem on Tiger // NOI18N
return NbBundle.getMessage(RubyPlatformValidator.class, "RubyPlatformValidator.GemMissingMac");
}
}
return NbBundle.getMessage(RubyPlatformValidator.class, "RubyPlatformValidator.GemMissing");
}
void reportRubyGemsProblem() {
String problems = getRubyGemsProblems();
assert problems != null : "cannot report RubyGems problems when there not any";
DialogDisplayer.getDefault().notify(new NotifyDescriptor.Message(
problems, NotifyDescriptor.Message.ERROR_MESSAGE));
}
}