// Copyright 2011 The MOE Authors All Rights Reserved.
package com.google.devtools.moe.client.dvcs.hg;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.devtools.moe.client.AppContext;
import com.google.devtools.moe.client.CommandRunner.CommandException;
import com.google.devtools.moe.client.MoeProblem;
import com.google.devtools.moe.client.Ui;
import com.google.devtools.moe.client.dvcs.AbstractDvcsWriter;
import com.google.devtools.moe.client.repositories.RevisionMetadata;
import java.util.List;
/**
* Hg implementation of {@link AbstractDvcsWriter}. For migrations, local commits are made on the
* default branch from last equivalence revision, potentially creating a new head in default.
*
*/
public class HgWriter extends AbstractDvcsWriter<HgClonedRepository> {
protected HgWriter(HgClonedRepository revClone) {
super(revClone);
}
@Override
protected List<String> getIgnoreFilePatterns() {
return ImmutableList.<String>builder()
.addAll(revClone.getConfig().getIgnoreFileRes())
.add("^\\.hg.*")
.build();
}
@Override
protected void addFile(String relativeFilename) throws CommandException {
revClone.runHgCommand("add", relativeFilename);
}
@Override
protected void modifyFile(String relativeFilename) throws CommandException {
// No op.
}
@Override
protected void removeFile(String relativeFilename) throws CommandException {
revClone.runHgCommand("rm", relativeFilename);
}
@Override
protected void commitChanges(RevisionMetadata rm) throws CommandException {
revClone.runHgCommand("commit", "--message", rm.description);
}
@Override
protected boolean hasPendingChanges() {
try {
String statusStdout = revClone.runHgCommand("status");
return !Strings.isNullOrEmpty(statusStdout);
} catch (CommandException e) {
throw new MoeProblem("Error in hg status: " + e);
}
}
@Override
public void printPushMessage() {
Ui ui = AppContext.RUN.ui;
ui.info("=====");
ui.info("MOE changes have been committed to a clone at " + getRoot());
ui.info("Changes may have created a new head. Merge heads if needed, then push to remote.");
ui.info("For example:");
ui.info("hg heads");
ui.info("hg merge # if more than one head");
ui.info("hg commit -m 'MOE merge'");
ui.info("hg push");
ui.info("=====");
}
}