branch: Add -m option to rename a branch
Change-Id: I7cf8e43344eaf301592fba0c178e04daad930f9a Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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@ -50,18 +50,19 @@
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import java.util.Map;
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import java.util.Map.Entry;
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import org.kohsuke.args4j.Argument;
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import org.kohsuke.args4j.ExampleMode;
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import org.kohsuke.args4j.Option;
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import org.eclipse.jgit.lib.Constants;
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import org.eclipse.jgit.lib.ObjectId;
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import org.eclipse.jgit.lib.Ref;
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import org.eclipse.jgit.lib.RefComparator;
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import org.eclipse.jgit.lib.RefRename;
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import org.eclipse.jgit.lib.RefUpdate;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.lib.RefUpdate.Result;
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import org.eclipse.jgit.pgm.opt.CmdLineParser;
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import org.eclipse.jgit.revwalk.RevWalk;
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import org.kohsuke.args4j.Argument;
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import org.kohsuke.args4j.ExampleMode;
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import org.kohsuke.args4j.Option;
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@Command(common = true, usage = "List, create, or delete branches")
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class Branch extends TextBuiltin {
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@ -81,6 +82,9 @@ class Branch extends TextBuiltin {
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@Option(name = "--create-force", aliases = { "-f" }, usage = "force create branch even exists")
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private boolean createForce = false;
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@Option(name = "-m", usage = "move/rename a branch")
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private boolean rename = false;
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@Option(name = "--verbose", aliases = { "-v" }, usage = "be verbose")
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private boolean verbose = false;
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@ -102,7 +106,36 @@ protected void run() throws Exception {
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if (branches.size() > 2)
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throw die("Too many refs given\n" + new CmdLineParser(this).printExample(ExampleMode.ALL));
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if (branches.size() > 0) {
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if (rename) {
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String src, dst;
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if (branches.size() == 1) {
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final Ref head = db.getRef(Constants.HEAD);
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if (head != null && head.isSymbolic())
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src = head.getLeaf().getName();
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else
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throw die("Cannot rename detached HEAD");
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dst = branches.get(0);
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} else {
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src = branches.get(0);
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final Ref old = db.getRef(src);
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if (old == null)
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throw die(String.format("%s does not exist", src));
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if (!old.getName().startsWith(Constants.R_HEADS))
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throw die(String.format("%s is not a branch", src));
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src = old.getName();
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dst = branches.get(1);
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}
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if (!dst.startsWith(Constants.R_HEADS))
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dst = Constants.R_HEADS + dst;
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if (!Repository.isValidRefName(dst))
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throw die(String.format("%s is not a valid ref name", dst));
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RefRename r = db.renameRef(src, dst);
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if (r.rename() != Result.RENAMED)
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throw die(String.format("%s cannot be renamed", src));
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} else if (branches.size() > 0) {
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String newHead = branches.get(0);
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String startBranch;
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if (branches.size() == 2)
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