diff options
Diffstat (limited to 'org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/RevCommitHandler.java')
| -rw-r--r-- | org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/RevCommitHandler.java | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/RevCommitHandler.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/RevCommitHandler.java new file mode 100644 index 0000000000..01caaf2018 --- /dev/null +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/RevCommitHandler.java @@ -0,0 +1,146 @@ +/* + * Copyright (C) 2009, Google Inc. + * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> + * and other copyright owners as documented in the project's IP log. + * + * This program and the accompanying materials are made available + * under the terms of the Eclipse Distribution License v1.0 which + * accompanies this distribution, is reproduced below, and is + * available at http://www.eclipse.org/org/documents/edl-v10.php + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * - Neither the name of the Eclipse Foundation, Inc. nor the + * names of its contributors may be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +package org.eclipse.jgit.pgm.opt; + +import java.io.IOException; + +import org.kohsuke.args4j.CmdLineException; +import org.kohsuke.args4j.CmdLineParser; +import org.kohsuke.args4j.OptionDef; +import org.kohsuke.args4j.spi.OptionHandler; +import org.kohsuke.args4j.spi.Parameters; +import org.kohsuke.args4j.spi.Setter; +import org.eclipse.jgit.errors.IncorrectObjectTypeException; +import org.eclipse.jgit.errors.MissingObjectException; +import org.eclipse.jgit.lib.ObjectId; +import org.eclipse.jgit.revwalk.RevCommit; +import org.eclipse.jgit.revwalk.RevFlag; + +/** + * Custom argument handler {@link RevCommit} from string values. + * <p> + * Assumes the parser has been initialized with a Repository. + */ +public class RevCommitHandler extends OptionHandler<RevCommit> { + private final org.eclipse.jgit.pgm.opt.CmdLineParser clp; + + /** + * Create a new handler for the command name. + * <p> + * This constructor is used only by args4j. + * + * @param parser + * @param option + * @param setter + */ + public RevCommitHandler(final CmdLineParser parser, final OptionDef option, + final Setter<? super RevCommit> setter) { + super(parser, option, setter); + clp = (org.eclipse.jgit.pgm.opt.CmdLineParser) parser; + } + + @Override + public int parseArguments(final Parameters params) throws CmdLineException { + String name = params.getParameter(0); + + boolean interesting = true; + if (name.startsWith("^")) { + name = name.substring(1); + interesting = false; + } + + final int dot2 = name.indexOf(".."); + if (dot2 != -1) { + if (!option.isMultiValued()) + throw new CmdLineException("Only one " + option.metaVar() + + " expected in " + name + "." + ""); + + final String left = name.substring(0, dot2); + final String right = name.substring(dot2 + 2); + addOne(left, false); + addOne(right, true); + return 1; + } + + addOne(name, interesting); + return 1; + } + + private void addOne(final String name, final boolean interesting) + throws CmdLineException { + final ObjectId id; + try { + id = clp.getRepository().resolve(name); + } catch (IOException e) { + throw new CmdLineException(e.getMessage()); + } + if (id == null) + throw new CmdLineException(name + " is not a commit"); + + final RevCommit c; + try { + c = clp.getRevWalk().parseCommit(id); + } catch (MissingObjectException e) { + throw new CmdLineException(name + " is not a commit"); + } catch (IncorrectObjectTypeException e) { + throw new CmdLineException(name + " is not a commit"); + } catch (IOException e) { + throw new CmdLineException("cannot read " + name + ": " + + e.getMessage()); + } + + if (interesting) + c.remove(RevFlag.UNINTERESTING); + else + c.add(RevFlag.UNINTERESTING); + + setter.addValue(c); + } + + @Override + public String getDefaultMetaVariable() { + return "commit-ish"; + } +} |