# HG changeset patch
# User Artem Tikhomirov <tikhomirov.artem@gmail.com>
# Date 1329135606 -3600
# Node ID 4b97847d0b2d648cd2995a573c2421df4b52a51d
# Parent  994b5813a92548597eb863ae8cdfbf3a9400dfc0
Auxilary builders for manifest and changelog to create test repositories

diff -r 994b5813a925 -r 4b97847d0b2d test/org/tmatesoft/hg/tools/ChangelogEntryBuilder.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/org/tmatesoft/hg/tools/ChangelogEntryBuilder.java	Mon Feb 13 13:20:06 2012 +0100
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2012 TMate Software Ltd
+ *  
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * For information on how to redistribute this software under
+ * the terms of a license other than GNU General Public License
+ * contact TMate Software at support@hg4j.com
+ */
+package org.tmatesoft.hg.tools;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.TimeZone;
+import java.util.Map.Entry;
+
+import org.tmatesoft.hg.core.Nodeid;
+
+/**
+ *
+ * @author Artem Tikhomirov
+ * @author TMate Software Ltd.
+ */
+public class ChangelogEntryBuilder {
+
+	private String user;
+	private List<String> modifiedFiles;
+	private final Map<String, String> extrasMap = new LinkedHashMap<String, String>();
+	private Integer tzOffset;
+	private Long csetTime;
+	
+	public ChangelogEntryBuilder user(String username) {
+		user = username;
+		return this;
+	}
+	
+	public String user() {
+		if (user == null) {
+			// for our testing purposes anything but null is ok. no reason to follow Hg username lookup conventions 
+			user = System.getProperty("user.name");
+		}
+		return user;
+	}
+	
+	public ChangelogEntryBuilder setModified(List<String> files) {
+		modifiedFiles = new ArrayList<String>(files == null ? Collections.<String>emptyList() : files);
+		return this;
+	}
+
+	public ChangelogEntryBuilder addModified(List<String> files) {
+		if (modifiedFiles == null) {
+			return setModified(files);
+		}
+		modifiedFiles.addAll(files);
+		return this;
+	}
+	
+	public ChangelogEntryBuilder branch(String branchName) {
+		if (branchName == null) {
+			extrasMap.remove("branch");
+		} else {
+			extrasMap.put("branch", branchName);
+		}
+		return this;
+	}
+	
+	public ChangelogEntryBuilder extras(Map<String, String> extras) {
+		extrasMap.clear();
+		extrasMap.putAll(extras);
+		return this;
+	}
+	
+	public ChangelogEntryBuilder date(long seconds, int timezoneOffset) {
+		csetTime = seconds;
+		tzOffset = timezoneOffset;
+		return this;
+	}
+	
+	private long csetTime() {
+		if (csetTime != null) { 
+			return csetTime;
+		}
+		return System.currentTimeMillis() / 1000;
+	}
+	
+	private int csetTimezone(long time) {
+		if (tzOffset != null) {
+			return tzOffset;
+		}
+		return -(TimeZone.getDefault().getOffset(time) / 1000);
+	}
+
+	public byte[] build(Nodeid manifestRevision, String comment) {
+		String f = "%s\n%s\n%d %d %s\n%s\n\n%s";
+		StringBuilder extras = new StringBuilder();
+		for (Iterator<Entry<String, String>> it = extrasMap.entrySet().iterator(); it.hasNext();) {
+			final Entry<String, String> next = it.next();
+			extras.append(encodeExtrasPair(next.getKey()));
+			extras.append(':');
+			extras.append(encodeExtrasPair(next.getValue()));
+			if (it.hasNext()) {
+				extras.append('\00');
+			}
+		}
+		StringBuilder files = new StringBuilder();
+		for (Iterator<String> it = modifiedFiles.iterator(); it.hasNext(); ) {
+			files.append(it.next());
+			if (it.hasNext()) {
+				files.append('\n');
+			}
+		}
+		final long date = csetTime();
+		final int tz = csetTimezone(date);
+		return String.format(f, manifestRevision.toString(), user, date, tz, extras, files, comment).getBytes();
+	}
+
+	private final static CharSequence encodeExtrasPair(String s) {
+		if (s != null) {
+			return s.replace("\\", "\\\\").replace("\n", "\\n").replace("\r", "\\r").replace("\00", "\\0");
+		}
+		return s;
+	}
+}
diff -r 994b5813a925 -r 4b97847d0b2d test/org/tmatesoft/hg/tools/ManifestEntryBuilder.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/org/tmatesoft/hg/tools/ManifestEntryBuilder.java	Mon Feb 13 13:20:06 2012 +0100
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2012 TMate Software Ltd
+ *  
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * For information on how to redistribute this software under
+ * the terms of a license other than GNU General Public License
+ * contact TMate Software at support@hg4j.com
+ */
+package org.tmatesoft.hg.tools;
+
+import java.io.ByteArrayOutputStream;
+
+import org.tmatesoft.hg.core.Nodeid;
+
+/**
+ * Create binary manifest entry ready to write down into 00manifest.i
+ * <p>Usage:
+ * <pre>
+ *   ManifestEntryBuilder mb = new ManifestEntryBuilder();
+ *   mb.reset().add("file1", file1.getRevision(r1));
+ *   mb.add("file2", file2.getRevision(r2));
+ *   byte[] manifestRecordData = mb.build();
+ *   byte[] manifestRevlogHeader = buildRevlogHeader(..., sha1(parents, manifestRecordData), manifestRecordData.length);
+ *   manifestIndexOutputStream.write(manifestRevlogHeader);
+ *   manifestIndexOutputStream.write(manifestRecordData);
+ * </pre>
+ * 
+ * @author Artem Tikhomirov
+ * @author TMate Software Ltd.
+ */
+public class ManifestEntryBuilder {
+	private ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+
+	
+	public ManifestEntryBuilder reset() {
+		buffer.reset();
+		return this;
+	}
+	public ManifestEntryBuilder add(String fname, Nodeid revision) {
+		byte[] b = fname.getBytes();
+		buffer.write(b, 0, b.length);
+		buffer.write('\0');
+		b = revision.toString().getBytes();
+		buffer.write(b, 0, b.length);
+		buffer.write('\n');
+		return this;
+	}
+
+	public byte[] build() {
+		return buffer.toByteArray();
+	}
+
+}