Recognize CRLF when parsing the short message of a commit or tag
Bug: 400707 Change-Id: I9b09bb88528af465018fc0278f5441f7e6b75986
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c693a232b0
commit
b0ffacf122
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@ -383,6 +383,19 @@ public void testParse_PublicParseMethod()
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assertEquals(src.getMessage(), p.getFullMessage());
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}
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@Test
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public void testParse_GitStyleMessageWithCRLF() throws Exception {
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final String shortMsgIn = "This fixes a\r\nbug.\r\n\r\n";
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final String shortMsg = "This fixes a bug.";
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final String body = "We do it with magic and pixie dust\r\nand stuff.\r\n"
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+ "\r\n\r\n"
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+ "Signed-off-by: A U. Thor <author@example.com>\r\n";
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final String fullMsg = shortMsgIn + "\r\n" + "\r\n" + body;
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final RevCommit c = create(fullMsg);
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assertEquals(fullMsg, c.getFullMessage());
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assertEquals(shortMsg, c.getShortMessage());
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}
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private static ObjectId id(final String str) {
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return ObjectId.fromString(str);
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}
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@ -91,4 +91,16 @@ public void testEqualsIgnoreCase4() {
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assertTrue(StringUtils.equalsIgnoreCase("A", "a"));
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assertTrue(StringUtils.equalsIgnoreCase("a", "A"));
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}
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@Test
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public void testReplaceLineBreaks() {
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assertEquals("a b c ",
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StringUtils.replaceLineBreaksWithSpace("a b\nc\r"));
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assertEquals("a b c ",
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StringUtils.replaceLineBreaksWithSpace("a b\nc\n"));
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assertEquals("a b c ",
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StringUtils.replaceLineBreaksWithSpace("a b\nc\r\n"));
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assertEquals("a b c d",
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StringUtils.replaceLineBreaksWithSpace("a\r\nb\nc d"));
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}
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}
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@ -59,6 +59,7 @@
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import org.eclipse.jgit.lib.ObjectReader;
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import org.eclipse.jgit.lib.PersonIdent;
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import org.eclipse.jgit.util.RawParseUtils;
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import org.eclipse.jgit.util.StringUtils;
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/** A commit reference to a commit in the DAG. */
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public class RevCommit extends RevObject {
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@ -421,7 +422,7 @@ public final String getShortMessage() {
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final int msgE = RawParseUtils.endOfParagraph(raw, msgB);
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String str = RawParseUtils.decode(enc, raw, msgB, msgE);
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if (hasLF(raw, msgB, msgE))
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str = str.replace('\n', ' ');
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str = StringUtils.replaceLineBreaksWithSpace(str);
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return str;
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}
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@ -58,6 +58,7 @@
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import org.eclipse.jgit.lib.PersonIdent;
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import org.eclipse.jgit.util.MutableInteger;
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import org.eclipse.jgit.util.RawParseUtils;
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import org.eclipse.jgit.util.StringUtils;
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/** An annotated tag. */
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public class RevTag extends RevObject {
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@ -234,7 +235,7 @@ public final String getShortMessage() {
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final int msgE = RawParseUtils.endOfParagraph(raw, msgB);
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String str = RawParseUtils.decode(enc, raw, msgB, msgE);
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if (RevCommit.hasLF(raw, msgB, msgE))
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str = str.replace('\n', ' ');
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str = StringUtils.replaceLineBreaksWithSpace(str);
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return str;
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}
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@ -1058,7 +1058,7 @@ public static final int tagMessage(final byte[] b, int ptr) {
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/**
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* Locate the end of a paragraph.
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* <p>
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* A paragraph is ended by two consecutive LF bytes.
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* A paragraph is ended by two consecutive LF bytes or CRLF pairs
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*
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* @param b
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* buffer to scan.
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@ -1072,9 +1072,11 @@ public static final int tagMessage(final byte[] b, int ptr) {
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public static final int endOfParagraph(final byte[] b, final int start) {
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int ptr = start;
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final int sz = b.length;
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while (ptr < sz && b[ptr] != '\n')
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while (ptr < sz && (b[ptr] != '\n' && b[ptr] != '\r'))
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ptr = nextLF(b, ptr);
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while (0 < ptr && start < ptr && b[ptr - 1] == '\n')
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if (ptr > start && b[ptr - 1] == '\n')
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ptr--;
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if (ptr > start && b[ptr - 1] == '\r')
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ptr--;
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return ptr;
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}
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@ -279,4 +279,30 @@ private StringUtils() {
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public static boolean isEmptyOrNull(String stringValue) {
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return stringValue == null || stringValue.length() == 0;
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}
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/**
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* Replace CRLF, CR or LF with a single space.
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*
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* @param in
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* A string with line breaks
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* @return in without line breaks
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*/
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public static String replaceLineBreaksWithSpace(String in) {
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char[] buf = new char[in.length()];
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int o = 0;
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for (int i = 0; i < buf.length; ++i) {
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char ch = in.charAt(i);
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if (ch == '\r') {
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if (i + 1 < buf.length && in.charAt(i + 1) == '\n') {
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buf[o++] = ' ';
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++i;
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} else
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buf[o++] = ' ';
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} else if (ch == '\n')
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buf[o++] = ' ';
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else
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buf[o++] = ch;
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}
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return new String(buf, 0, o);
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}
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}
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