| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.nbbuild; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.List; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.Task; |
| |
| /** |
| * Computes Git changeset ID (in short format, i.e. 12 hex digits) of current working copy. |
| * Compared to {@code git log --abbrev-commit --abbrev=12} |
| * it is very quick. Does not check for second merge parent or modification status |
| * or tags. Sets property to {@code unknown-revn} if there is any problem. |
| * |
| * (This task formerly computed a Mercurial changeset ID hence the name) |
| */ |
| public class HgId extends Task { |
| |
| private File file; |
| /** |
| * Locates the repository. |
| * May be repository root, or any file or folder inside it. |
| */ |
| public void setFile(File file) { |
| this.file = file; |
| } |
| |
| private String property; |
| /** |
| * Declares which property to define with the resulting ID. |
| */ |
| public void setProperty(String property) { |
| this.property = property; |
| } |
| |
| @Override |
| public void execute() throws BuildException { |
| if (file == null || property == null) { |
| throw new BuildException("define file and property"); |
| } |
| Path headroot = null; |
| for (Path root = file.toPath(); root != null; root = root.getParent()) { |
| Path headpath = root.resolve(".git/HEAD"); |
| if (Files.isRegularFile(headpath)) { |
| headroot = headpath; |
| break; |
| } |
| } |
| String id = "unknown-revn"; |
| try { |
| if (headroot != null && Files.size(headroot) > 0l) { |
| List<String> lines = Files.readAllLines(headroot); |
| String line = lines.get(0); |
| String revLink = line.substring(line.indexOf(':')+1).trim(); |
| |
| Path revPath = headroot.getParent().resolve(revLink); |
| if(Files.isRegularFile(revPath) && Files.size(revPath) > 0l) { |
| List<String> revlines = Files.readAllLines(revPath); |
| String revline = revlines.get(0); |
| if(revline.length()>=12){ |
| id = revline.substring(0, 12); |
| } else { |
| log("no content in " + revPath, Project.MSG_WARN); |
| } |
| } else { |
| log("unable to find revision info for " + revPath, Project.MSG_WARN); |
| } |
| } else { |
| log("No HEAD found starting from " + file, Project.MSG_WARN); |
| } |
| } catch(IOException ex) { |
| log("Could not read " + headroot + ": " + ex, Project.MSG_WARN); |
| } |
| assert id.length() == 12 : id; |
| getProject().setNewProperty(property, id); |
| } |
| |
| } |